the sum of series whose n term is 3(2x+1) is
i need detailed answer

Answers

Answer 1

The sum of a series whose nth term is 3(2x+1) can be calculated using the formula: S = (n/2)(3a + 3d + a), where a = the first term of the series and d = the common difference between the terms. In the given series, the first term is 3(2x+1), and the common difference is 3. Therefore, the sum of the series is: S = (n/2)(3(2x+1) + 3(3) + (2x+1)) = (n/2)(9x + 10)


Related Questions

A local theater is putting on the musical "peter pan." Tickets for adults cost $20, while tickets for children up to age 12 cost $10. On opening night a total of 140 people are in attendance and the theater earns $2270.

a. Define the variables for this problem.

b. Write a system of equations that represents this situation. DO NOT SOLVE.

Answers

a. The variables for this problem is x + y = 140

b. a system of equations that represents this situation is 20x + 10y = 2270

What are variables?  

An attribute οr phenοmenοn that may be quantified as a variable and that changes in value οver time. As a result, a variable is a quantity that can be calculated and is subject tο change.

Bοth discrete and cοntinuοus variables are pοssible.

a. Tο sοlve this questiοn we will need twο variables x and y.

Let number οf adults be x and number οf kids be y then we get,

x + y = 140

b. Tο write a system fοr sοlving this questiοn we are given the price οf tickets.

20x + 10y = 2270

and, x + y = 140

Learn more about Variables on:

https://brainly.com/question/2466865

#SPJ1

(3)/(x^(2)-2x-8)-(4)/(x^(2)-16) Simplify. Assume that all variables result in nonzero denominators.

Answers

The simplified expression is (-1)/((x+2)(x+4)).

To simplify the expression (3)/(x^(2)-2x-8)-(4)/(x^(2)-16), we need to find a common denominator and combine the numerators.

Factor the denominators to find a common denominator.
(x^(2)-2x-8) = (x-4)(x+2)
(x^(2)-16) = (x-4)(x+4)

The common denominator is (x-4)(x+2)(x+4).

Multiply the numerators and denominators by the appropriate factors to get the common denominator.
(3)/(x^(2)-2x-8) = (3)(x+4)/((x-4)(x+2)(x+4))
(4)/(x^(2)-16) = (4)(x+2)/((x-4)(x+2)(x+4))

Combine the numerators and keep the common denominator.
(3)(x+4)/((x-4)(x+2)(x+4)) - (4)(x+2)/((x-4)(x+2)(x+4)) = (3x+12-4x-8)/((x-4)(x+2)(x+4))

Simplify the numerator and denominator.
(-x+4)/((x-4)(x+2)(x+4)) = (-1)(x-4)/((x-4)(x+2)(x+4))

Cancel out the common factors in the numerator and denominator.
(-1)/((x+2)(x+4))

Therefore, the simplified expression is (-1)/((x+2)(x+4)).

Note: We assumed that all variables result in nonzero denominators, so we do not need to worry about any restrictions on the values of x.

Learn more about Denominators

brainly.com/question/7067665

#SPJ11

The determinant of this matrix​mm+2aa​nn+2bb​oo+2cc​​is: Select one: 3 1 0 2

Answers

The determinant of this matrix is 6.

The determinant of a matrix is a scalar value that can be calculated from the elements of a square matrix. The determinant is important in linear algebra and can be used to solve systems of equations or find the inverse of a matrix.

The determinant of a 2x2 matrix is calculated by taking the product of the elements on the main diagonal and subtracting the product of the elements on the other diagonal. In this case, the determinant of the matrix is:

determinant = (3)(2) - (1)(0)
determinant = 6 - 0
determinant = 6

Learn more about determinant

brainly.com/question/13369636

#SPJ11

in the diagram ehat is the ratio of patterend circles to plain circles

Answers

Answer:5:7

Step-by-step explanation:

From the given graph it is clear that

The total number of circles = 12

The total number of patterned circles = 5

The total number of plain circles = 7

We need to find the ratio of patterned circles to plain circles.

Substitute patterned circles = 5 and plain circles = 7 in the above formula.

Therefore, the ratio of patterned circles to plain circles is 5:7.

Question.1 [15 Marks] The following data relate to the age of 25 persons selected randomly from a market place. The data are arranged in order:
05,08,10,12,16,18,20,21,24,24,25,26,28,30,32,35,38,40,43,43,48,50,58,60, 72.
(a) Find the mode, median, first quartile, third quartile of the data set, and check for outliers.
(b) Find the data value corresponding to the 60 th percentile.
(c) Find the percentile rank of the age 40.
(d) Draw a boxplot for the data set.

Answers

(a) The mode, median, first quartile, and third quartile of the data set is 24, 24, 12, and 43, respectively. There are no outliers.

(b) The data value corresponding to the 60th percentile is 33.8.

(c) The percentile rank of the age 40 is 70th percentile.

(a) The mode of the data set is 24, as it appears twice in the data set.
The median of the data set is 24, as it is the middle value when the data set is arranged in ascending order.
The first quartile (Q1) is 12, as it is the median of the lower half of the data set.
The third quartile (Q3) is 43, as it is the median of the upper half of the data set.
To check for outliers, we can use the interquartile range (IQR), which is Q3 - Q1 = 43 - 12 = 31.
The lower outlier boundary is Q1 - 1.5(IQR) = 12 - 1.5(31) = -34.5.
The upper outlier boundary is Q3 + 1.5(IQR) = 43 + 1.5(31) = 89.5.
Since all the values in the data set are within the outlier boundaries, there are no outliers.

(b) To find the data value corresponding to the 60th percentile, we can use the formula:
Percentile rank = (p/100)(n + 1)
where p is the percentile, and n is the number of data values.
In this case, p = 60 and n = 25, so the percentile rank is (60/100)(25 + 1) = 15.6.
Since the percentile rank is not a whole number, we can use interpolation to find the data value corresponding to the 60th percentile.
The data value corresponding to the 60th percentile is 32 + (0.6)(35 - 32) = 33.8.

(c) To find the percentile rank of the age 40, we can use the formula:
Percentile rank = (L + 0.5f)/n
where L is the number of data values less than 40, f is the frequency of 40, and n is the number of data values.
In this case, L = 17, f = 1, and n = 25, so the percentile rank of the age 40 is (17 + 0.5(1))/25 = 0.7 or 70th percentile.

(d) To draw a boxplot for the data set, we can use the values of the first quartile (Q1), median, and third quartile (Q3) that we found in part (a).
The boxplot would look like this:
[12]---[24]---[43]
    Q1    Median   Q3

Learn more about data set here: https://brainly.com/question/26940257.

#SPJ11

Introduction to the LCM of two monomial Find the least common multiple of 6x^(3) and 8n^(4).

Answers

This is the least common multiple of 6x3 and 8n4. The least common multiple (LCM) of two monomials is the lowest common multiple of the coefficients and the highest sum of exponents for each variable.

To find the LCM of 6x3 and 8n4, we need to find the highest sum of exponents for each variable (in this case, 3 for x and 4 for n). Then, multiply the coefficients together to get 48x3n4. This is the least common multiple of 6x3 and 8n4.

For more about least common multiple:

https://brainly.com/question/30060162

#SPJ11

how to find the % of any number?

Answers

Answer:

Divide the number by 100

Step-by-step explanation:

The percentage of a number is it's relation in terms of 100. So to get the percentage of a number you have to divide it by 100

e.g 10 is a number

10/100

That is 0.1%

Please mark brainliest.

Thanks.

Find all solutions to the following triangle. (Round your answers for angles B, C, B', and C' to the nearest whole number. Round your answers for sides c and c' to one decimal place. If either triangle is not possible, enter NONE in each corresponding answer blank.) A = 147°, b = 2.9 yd, a = 1.4 yd
First triangle (assume B ≤ 90°):
B = °
C = °
c = yd
Second triangle (assume B' > 90°):
B' = °
C' = °
c' = yd

Answers

The final answer is:
First Triangle:
B = NONE
C = NONE
c = NONE

Second Triangle:
B' = NONE
C' = NONE
c' = NONE

Using the Law of Sines, we can find the missing angles and sides of the triangles.

First Triangle:
Since A = 147°, b = 2.9 yd, and a = 1.4 yd, we can use the Law of Sines to find angle B.
sin B / 2.9 yd = sin 147° / 1.4 yd
sin B = (2.9 yd)(sin 147°) / 1.4 yd
sin B = 1.97
Since sin B is greater than 1, there is no solution for angle B. Therefore, the first triangle is not possible and we can enter NONE in each corresponding answer blank.

B = NONE
C = NONE
c = NONE

Second Triangle:
Since A = 147°, b = 2.9 yd, and a = 1.4 yd, we can use the Law of Sines to find angle B'.
sin B' / 2.9 yd = sin 147° / 1.4 yd
sin B' = (2.9 yd)(sin 147°) / 1.4 yd
sin B' = 1.97
Since sin B' is greater than 1, there is no solution for angle B'. Therefore, the second triangle is not possible and we can enter NONE in each corresponding answer blank.

B' = NONE
C' = NONE
c' = NONE

So, the final answer is:
First Triangle:
B = NONE
C = NONE
c = NONE

Second Triangle:
B' = NONE
C' = NONE
c' = NONE

Learn more about Triangle

brainly.com/question/2773823

#SPJ11



A toy shop purchases 125 identical stuffed animals for a total cost of $312.50 and sells them for $7 each. What is the percent markup?

Answers

7.5
Would be the answer because the markup is .5 and they are selling the stuffed animals for 7$
So 7+ .5= 7.5

Answer:

180%

Step-by-step explanation:

Were given the total cost for all the stuffies, and the individual sale price for the stuffies, to convert them in all individual price divide 312.5 by 125 which equals 2.5. to find percent markup do (selling price - unit cost)/unit cost. Then multiply to get percentage. Therefore (7-2.5)/2.5=1.8. 1.8*100 = 180% markup

Determine the domain of the quadratic function. f (x) = 7x2 - 10x + 10 Get Hint Enter Your Stop Here 16 8704 МАА 3

Answers

The domain of the quadratic function f(x) = 7x2 - 10x + 10 is all real numbers.

To determine the domain, set the equation equal to 0 and solve for x.

7x² - 10x + 10 = 0

7x2 - 10x = -10

7x(x - 10) = -10

x(x - 10) = -10/7

x = 10 or x = -10/7

The domain of a function is the set of all possible input values (x-values) for which the function is defined. In the case of the quadratic function f(x) = 7x^2 - 10x + 10, there are no restrictions on the values that x can take.

That is, any real number can be plugged in for x, and the function will give a real output. Therefore, the domain of this quadratic function is all real numbers, or (-∞, ∞).


Since there are no restrictions on x, the domain of the function is all real numbers.

For more information about quadratic function, visit:

brainly.com/question/1214333

#SPJ11

I need some help please

Answers

The solution to the given inequality |3x + 4| > 6 is x < -10/3 or x > 2/3

How to solve inequality?

Inequality is a statement that is of two quantities in which one is specifically less than (or greater than) another. The symbols of inequality includes;

Greater than >

Less than <

Equal to =

Greater than or equal to ≥

Less than or equal to ≤

|3x + 4| > 6

First case:

+(3x + 4) > 6

3x + 4 > 6

subtract 4 from both sides

3x > 6 - 4

3x > 2

divide both sides by 3

x > 2/3

Second case:

-(3x + 4) > 6

-3x - 4 > 6

Add 4 to both sides

-3x > 6 + 4

-3x > 10

x < 10/-3

Hence, x < -10/3 or x > 2/3

Read more on absolute inequality:

https://brainly.com/question/28263599

#SPJ1

A bullet is fired horizontally at a target, and the sound of its impact is heard 2.5 seconds later. If the speed of the bullet is 3300 feet per second and the speed of sound is 1100 feet per second, how far away is the target?

Answers

The target is 4125 feet away from the bullet.

To find the distance between the target and the bullet, we need to use the formula distance = speed × time. We have two distances to find: the distance the bullet travels and the distance the sound travels. Let's call the distance between the target and the bullet d.

The distance the bullet travels is given by:
d = 3300 × t

The distance the sound travels is given by:
d = 1100 × (t - 2.5)

Since the two distances are equal, we can set the two equations equal to each other and solve for t:

3300 × t = 1100 × (t - 2.5)
3300t = 1100t - 2750
2200t = 2750
t = 1.25

Now that we have the time, we can plug it back into one of the equations to find the distance:

d = 3300 × 1.25
d = 4125 feet

So the target is 4125 feet away from the bullet.

To know more about speed click on below link:

https://brainly.com/question/28224010#

#SPJ11

30 POINTS AND BRAINLIEST!!!
|
\ /

Answers

Using expression, the following provides one explanation for why there are two ways to add up the symbols on the tablet.

Describe expression.

A statement, at least two variables or integers, and one or more arithmetic operations make up a mathematical expression. This mathematical procedure makes it possible to multiply, divide, add, or subtract quantities.

The hieroglyphic number system of ancient Egypt employed a decimal system with hieroglyphs to denote the powers of ten. It is challenging to give a precise response, though, without being able to see the precise symbols on the tablet.

It is feasible that there are two distinct ways to add the numbers represented by the symbols on the tablet, presuming that the tablet is employing a fundamental arithmetic operation like addition and that each symbol represents a different number.

Finding two different sets of integers that, when added together, yield the same answer is one way to approach this issue.

As an illustration, if the symbols stand for 2, 3, and 5, one technique to add them up would be:

2 + 3 + 5 = 10

They might also be added up as follows:

3 + 7 = 10

In this instance, the number 2 would be represented by the sign 2, and the number 5 by the symbol 3. This could be one reason for why the symbols on the tablet can be added in two different ways.

To know more about expression, visit:

https://brainly.com/question/14083225

#SPJ1

Mike constructed a kite by attaching two congruent triangles as shown in the diagram below. Which equation can Mike use to determine the amount of material, in square inches, needed to create the kite?

F. A=[12(12)(8)]⋅2
​​​ G.A=[12(6)(8)]⋅2
H.A=[(12)(4)]⋅2
J.A=[(6)(10)]⋅2

Answers

Answer: We cannot provide a complete answer as there is no diagram attached to the question. However, based on the information provided, we can make an educated guess as to which equation Mike can use to determine the amount of material, in square inches, needed to create the kite.

Since Mike constructed the kite by attaching two congruent triangles, we can use the formula for the area of a triangle, which is:

A = (1/2) * base * height

To find the area of both triangles, we need to know the base and height of each triangle. Without a diagram, we cannot determine the exact dimensions of the triangles.

However, based on the answer choices provided, we can make an assumption that the kite is made up of two congruent right triangles, each with legs of length 6 inches and 8 inches. Using this assumption, we can determine the area of each triangle and then multiply by 2 to get the total area of the kite.

Using the formula for the area of a triangle, we get:

A = (1/2) * base * height

= (1/2) * 6 * 8

= 24

So the area of each triangle is 24 square inches, and the total area of the kite is:

A = 2 * 24

= 48

Therefore, the equation that Mike can use to determine the amount of material, in square inches, needed to create the kite is likely to be:

G. A = [12(6)(8)]⋅2

This equation corresponds to the area of two congruent right triangles with legs of length 6 inches and 8 inches.

Step-by-step explanation:

What is the measure of angle JNM?

Answers

Answer: JNM=42

Step-by-step explanation:

A bakery makes cylindrical mini muffins that measure 2 inches in diameter and one and one fourth inches in height. If each mini muffin is completely wrapped in paper, then at least how much paper is needed to wrap 6 mini muffins? Approximate using pi equals 22 over 7.

A. 14 and 1 over 7 in2
B. 23 and 4 over 7 in2
C. 47 and 1 over 7 in2
D. 84 and 6 over 7 in2

Answers

Answer:

D. 84 and 6 over 7 in2

Step-by-step explanation:

The surface area of the cylindrical mini muffin can be calculated as follows:

Surface area = 2πr^2 + 2πrh

where r is the radius of the circular base and h is the height of the cylinder.

Given that the diameter of the mini muffin is 2 inches, the radius can be calculated as 1 inch (since radius = diameter / 2).

So, r = 1 inch and h = 1 and 1/4 inches.

Substituting these values into the surface area formula, we get:

Surface area = 2 x (22/7) x 1^2 + 2 x (22/7) x 1 x (5/4)

= (44/7) + (55/7)

= 99/7

≈ 14.14 square inches

Therefore, the surface area of 1 mini muffin is approximately 14.14 square inches.

To wrap 6 mini muffins, we need to multiply the surface area of 1 mini muffin by 6:

Surface area of 6 mini muffins = 6 x 14.14

≈ 84.84 square inches

Rounding off to one decimal place, the minimum amount of paper needed to wrap 6 mini muffins is approximately 84.8 square inches, which is closest to option D, 84 and 6/7 in^2.

Which point has coordinates (4.9, 3.9)?

Answers

Answer:

C

Step-by-step explanation:

Answer: c.

Step-by-step explanation:

Hi. _______________________________________________________________________________

Answers

Answer:

.

Step-by-step explanation:

The data food-consumption. Csv contains 16 countries in europe and their consumption for 20 food items, such as tea, jam, coffee, yogurt, and others. We will perform principal component analysis to explore the data. In this question, please implement pca by writing your own code (you can use any basic packages, such as numerical linear algebra, reading data, in your file)

Answers

We first load the data from the CSV file and extract the numeric columns for analysis. We then standardize the data to have zero mean and unit variance, which is necessary for PCA.

An example implementation of principal component analysis (PCA) using Python and the NumPy library:

import numpy as np

import pandas as pd

# load data from CSV file

data = pd.read_csv('food-consumption.csv')

# extract numeric columns for analysis

numeric_data = data.iloc[:, 1:]

# standardize the data to have zero mean and unit variance

mean = np.mean(numeric_data, axis=0)

std_dev = np.std(numeric_data, axis=0)

standardized_data = (numeric_data - mean) / std_dev

# calculate the covariance matrix

cov_matrix = np.cov(standardized_data, rowvar=False)

# calculate the eigenvalues and eigenvectors of the covariance matrix

eigenvalues, eigenvectors = np.linalg.eig(cov_matrix)

# sort the eigenvalues in descending order and arrange the corresponding eigenvectors accordingly

sorted_indices = np.argsort(eigenvalues)[::-1]

sorted_eigenvalues = eigenvalues[sorted_indices]

sorted_eigenvectors = eigenvectors[:, sorted_indices]

# choose the number of principal components to keep

num_components = 2

# select the top num_components eigenvectors to form the transformation matrix

transformation_matrix = sorted_eigenvectors[:, :num_components]

# transform the data into the new feature space

transformed_data = np.dot(standardized_data, transformation_matrix)

# print the variance explained by each principal component

variance_explained = sorted_eigenvalues / np.sum(sorted_eigenvalues)

print('Variance explained by each principal component:', variance_explained[:num_components])

# print the transformed data

print('Transformed data:', transformed_data)

This is just an example implementation of PCA and can be modified to suit your specific needs. Also, other packages such as scikit-learn or MATLAB can be used for PCA instead of implementing it from scratch.

A CSV (Comma Separated Values) file is a plain text file that stores tabular data in a simple and lightweight format. It consists of a series of lines, each representing a row of the table, with values separated by commas. Typically, the first row of a CSV file contains headers that describe the columns, while the subsequent rows contain data.

CSV files are widely used for data exchange and integration between different software systems, as they can be easily generated and parsed by a variety of programming languages and tools. Despite their simplicity, CSV files can store a wide range of data types and structures, including numeric, text, and date/time values, as well as arrays and nested structures.

To learn more about CSV file visit here:

brainly.com/question/30400629

#SPJ4

6. Over this same am interval we also have probe permeameter measurements These are plotted vs depth and displayed for comparison with the core plugs Can you see the pericability (geological structure more clearly? Given the following analysis of the probe data can we expect an average within 20% of the arithmetic average? What is the true beterogeneity level of this interval and what do you think controls it? What are the implications for the grid block permeabilities? Department of Petroleum Engineering. Hunor Wall Undersey 29 EUM. SCIENCE Probe permeability 320 151 93 No. of meas, Arith. av. (m) Geom. av. (mD) Harm av. (D) CV No Vdp 39 0.82 0.69

Answers

Based on the given data, it is difficult to see the permeability or geological structure more clearly from the probe permeameter measurements compared to the core plugs.

It is unlikely that we can expect an average within 20% of the arithmetic average, given the high level of heterogeneity and wide range of permeability values.

The implications for the grid block permeabilities are that there may be significant variability within the grid blocks

The probe data shows a wide range of permeability values, ranging from 320 mD to 93 mD, with an arithmetic average of 151 mD, geometric average of 0.82 mD, and harmonic average of 0.69 mD. The coefficient of variation (CV) is also quite high at 39, indicating a high level of heterogeneity within the interval.

It is unlikely that we can expect an average within 20% of the arithmetic average, given the high level of heterogeneity and wide range of permeability values. The true heterogeneity level of this interval is likely to be quite high, as indicated by the high CV value.

The controls on the heterogeneity level of this interval could be related to the geological structure and lithology of the reservoir, as well as the presence of fractures or faults. These factors can all impact the permeability and flow of fluids within the reservoir.

The implications for the grid block permeabilities are that there may be significant variability within the grid blocks, and this could impact the flow of fluids and the overall production from the reservoir. It may be necessary to use more detailed modeling techniques to accurately capture the heterogeneity within the grid blocks and better predict the flow of fluids within the reservoir.

To know more about heterogeneity level click here:

https://brainly.com/question/14547612

#SPJ11

1. convert: 18 pints=____cups
2.convert: 25 pounds=___ounces
3. Audrey weighed 6 pounds 15 ounces at birth. Convert her birth weight to ounces.
4. Misty's surgery lasted 2 1/4 hours. convert the time to seconds.
5. An empty bucket has a capacity of 5 gallons. Convert the volume to quarts.
6. At take off an airplane weighs 220000 pounds. Convert the weight to tons.
7. Blue whales can weigh as much as 150 tons. Convert the weight to pounds.
8. on a baseball diamond the distance from home plate to first base is 30 yards convert the distance to feet.
9. Jon is 6 feet 4 inches tall. convert his height to inches.
10. A floor tile is 2 feet wide. Convert the width to inches.
11. Convert: 480 fluid ounces = __________ quarts

Answers

Therefore , the solution of the given problem of  expression comes out to be 480 fluid ounces = 15 quarts further answer given below.

Describe expression.

Mathematical processes like multiplying, dividing, adding, and now even deleting are required. If they were merged, the following claim would be made: An equation, some statistics, and a mathematical formula Values, components, and mathematical processes like additions, variables subtractions, reversals, algebraic formulas, and divisions make up a statement of truth. Words and phrases can be rated and analysed.

Here,

=>118 pints = 36 cups

=> 25 pounds = 400 ounces

=> 6 pounds 15 ounces = 111 ounces

=> 2 1/4 hours = 8100 seconds

=> 5 gallons = 20 quarts

=> 220000 pounds = 110 tons

=> 150 tons = 300000 pounds

=> 30 yards = 90 feet

=> 6 feet 4 inches = 76 inches

=> 2 feet = 24 inches

=> 480 fluid ounces = 15 quarts

To know more about expressions visit :-

brainly.com/question/14083225

#SPJ1

What is the equation of the line containing the point (3,1),(9,3) and (27,9)

Answers

The equation of the line containing points (3,1),(9,3), and (27,9) is y = 0.333x.

We may use the point-slope form of the equation of a line, which is: to determine the equation of a line passing through three specified points.

y - y1 = m(x - x1)

where m is the slope of the line, and (x1, y1) is one of the provided locations.

Using any two of the given locations, determine the slope of the line:

m = (y2 - y1) / (x2 - x1) = (3 - 1) / (9 - 3) = 0.333

Choose one of the points, say (3,1), and substitute the slope and coordinates into the point-slope form:

y - 1 = 0.333(x - 3)

Simplify the equation by distributing the 0.333:

y - 1 = 0.333x - 1

Add 1 to both sides:

y = 0.333x

By entering the coordinates of the other two points, (9,3) and (27,9), into the equation and confirming that the left and right sides are equal, you can confirm that the equation also goes through those two places.

For (9,3):

3 = 0.333(9) = 3

For (27,9):

9 = 0.333(27) = 9

Checking the equation also goes through the other two points (9,3 and (27,9) by entering their coordinates into the formula and confirming that the left and right sides are y = 0.333x.

Learn more about the equation of line at

https://brainly.com/question/2564656

#SPJ4

The area of Gregory's rectangular garden, in square feet, can be found by using the exp
3(4x + 3y). Use the distributive property to write an equivalent expression for the area
garden.
1 point)
Equivalent expression

Answers

Answer: -12x-9y

Step-by-step explanation:

-3(4x+3y)

(-3 x 4x) +(-3 x 3y)

Distributive property means we multiply the components outside the bracket with those inside.

=-12x-9y

-12x-9y is the answer

Round your answer to the nearest hundredth.
A right triangle A B C. Angle A C B is a right angle. Angle B A C is unknown. Side A C is two units. Side A B is eight units.

Answers

The angle is [tex]m\angle{BAC}[/tex]=75.5°.

What is trigonometric function?

The functions of an angle in a triangle are known as trigonometric functions, commonly referred to as circular functions. In other words, these trig functions provide the relationship between a triangle's angles and sides. There are five fundamental trigonometric functions: sine, cosine, tangent, cotangent, secant, and cosecant.

Here in the given right triangle ABC, [tex]m\angle{ACB}[/tex]=90° and AC = 2 units ,

AB = 8 units. We need to find angle BAC.

Using cosine ratio,

=> Cos BAC = [tex]\frac{adjacent}{hypotenuse} = \frac{AC}{AB}[/tex]

=> Cos BAC = [tex]\frac{2}{8}=\frac{1}{4}=0.25[/tex]

=> [tex]m\angle {BAC} = cos^{-1}(0.25)[/tex] = 75.5°

Hence the angle is [tex]m\angle{BAC}[/tex]=75.5°.

To learn more about trigonometric ratio refer the below link

https://brainly.com/question/25618616

#SPJ1

Help me
This is the question.
The owner of a car dealership noticed a pattern in the weekly car sales, as shown in the table below. For weeks 1 through 4, which of the following equations could represent the pattern of s cars sold during week w?

Answers

Answer: i thank it is s=6 (w+6)

Step-by-step explanation:

a village contains contains n people a medical team inculates m people each day aginst yellow fever after foour days how many people still neeed to be inoculated​

Answers

n-4m people still need to be inoculated​. As the village contains n people and a medical team insulate m people each day against yellow fever.

It is given in the question that there is n number of people in the village.

Number of people inculcated each day against yellow fever = m

Now for finding how many people have been inculcated against yellow fever we will multiply by 4 the number of people who are being inculcated against yellow fever with m

So, in four days the number of people that had been inculcated is 4m

For finding how many people are left to be inculcated against yellow fever we will subtract from the total number of people in the village the  number of people who have been inoculated against yellow fever

Therefore, People left after four days to be inculcated is = n-4m

Learn more about the Number of people here: brainly.com/question/21893289

#SPJ1

Assume that a sample is used to estimate a population mean μ. Find the 99.5% confidence interval for a sample of size 54 with a mean of 30.7 and a standard deviation of 19.8. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places.

Answers

The 99.5% confidence interval for the population mean μ is (23.140, 38.260), accurate to 3 decimal places.

The 99.5% confidence interval for a sample of size 54 with a mean of 30.7 and a standard deviation of 19.8 can be calculated as follows:


1. Find the critical value for the 99.5% confidence level using a z-table or a t-table. For a 99.5% confidence level, the critical value is 2.807.
2. Calculate the standard error of the mean by dividing the standard deviation by the square root of the sample size:
SE = 19.8 / √54 = 2.694
3. Multiply the critical value by the standard error to find the margin of error:
ME = 2.807 * 2.694 = 7.560
4. Subtract the margin of error from the sample mean to find the lower bound of the confidence interval:
LB = 30.7 - 7.560 = 23.140
5. Add the margin of error to the sample mean to find the upper bound of the confidence interval:
UB = 30.7 + 7.560 = 38.260
6. Write the confidence interval as an open-interval using parentheses:
(23.140, 38.260)

Therefore, the 99.5% confidence interval for the population mean μ is (23.140, 38.260), accurate to 3 decimal places.

Know more about population mean here:

https://brainly.com/question/30727743

#SPJ11

Can someone answer this question for me? thank you

Answers

2 moles of Al is required to react with 213 g of Cl2.

What is the number of moles?

The number of moles is a unit of measurement used in chemistry to express the amount of a substance. One mole (mol) of a substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23 particles. The particles can be atoms, molecules, ions, electrons, or any other particles that make up a substance.

2Al + 3Cl2 -----> 2AlCl3

Number of moles of Cl2 = 213 g/71 g/mol

= 3 moles

If 2 moles of Al reacts with 3 moles of Cl2

x moles of Al reacts with 3 moles of Cl2

x = 2 * 3/3

= 2 moles

Learn more about moles:https://brainly.com/question/26416088

#SPJ1

Which function represents exponential decay?
A. f(x) = 0.25(1.06)
B. f(x) = 18 +0.9x
c. f(x) = 412 + 1.03x
D. f(x) = 268(0.86)*

Answers

Answer: The function that represents exponential decay is:

D. f(x) = 268(0.86)^x

This function has a base of 0.86, which is less than 1. As x increases, the value of the function decreases exponentially. This is the characteristic of exponential decay, where the value of a quantity decreases at a constant percentage rate over time.

Option A, f(x) = 0.25(1.06), represents exponential growth, as the base (1.06) is greater than 1.

Option B, f(x) = 18 + 0.9x, represents linear growth, as the value of the function increases linearly with x.

Option C, f(x) = 412 + 1.03x, also represents linear growth, as the value of the function increases linearly with x.

Step-by-step explanation:

a right rectangular prism shown is made up of 24 cubes . each cube has an edge length of 3/4 cubic inch what is the volume of this prism

Answers

Answer:

To find the volume of the right rectangular prism, we need to know its dimensions, which we can determine from the number of cubes it's made up of. Since the prism is made up of 24 cubes and each cube has an edge length of 3/4 cubic inch, we can find the dimensions of the prism as follows:

The number of cubes along the length of the prism is equal to the number of cubes along one of its edges. Since the edge length of each cube is 3/4 cubic inch, we can find the number of cubes along the length of the prism by dividing the total length of the prism by the edge length of each cube:

Number of cubes along the length = Total length / Edge length of each cube

= 24 cubes x (3/4) inch/cube

= 18 inches

Similarly, we can find the number of cubes along the width and height of the prism:

Number of cubes along the width = 24 cubes x (3/4) inch/cube = 12 inches

Number of cubes along the height = 24 cubes x (3/4) inch/cube = 8 inches

Now that we know the dimensions of the prism, we can find its volume by multiplying its length, width, and height:

Volume of the prism = Length x Width x Height

= 18 inches x 12 inches x 8 inches

= 1728 cubic inches

Therefore, the volume of the right rectangular prism is 1728 cubic inches.

Step-by-step explanation:

explanation of how to find the volume of the right rectangular prism made up of 24 cubes:

Given: The prism is made up of 24 cubes, and each cube has an edge length of 3/4 cubic inch.

To find the dimensions of the prism, we need to determine the number of cubes along each edge of the prism. Since the prism is made up of 24 cubes, we can divide the total number of cubes by the number of cubes along one of its edges to find the length of each edge:

Length of each edge = Total number of cubes^(1/3)

= 24^(1/3)

= 2.88 (rounded to two decimal places)

Now that we know the length of each edge of the prism, we can find its dimensions by multiplying the length of each edge by the edge length of each cube:

Length of the prism = 2.88 x 3/4 = 2.16 inches

Width of the prism = 2.88 x 3/4 = 2.16 inches

Height of the prism = 2.88 x 3/4 = 2.16 inches

Finally, we can find the volume of the prism by multiplying its length, width, and height:

Volume of the prism = Length x Width x Height

= 2.16 inches x 2.16 inches x 2.16 inches

= 10.79 cubic inches (rounded to two decimal places)

Therefore, the volume of the right rectangular prism made up of 24 cubes is 10.79 cubic inches.

The volume of the right rectangular prism is 27/2 cubic inches, and explains how that value was obtained from the given information.

How to find the volume of the rectangular prism?

Since the rectangular prism is made up of 24 cubes, we can find its volume by multiplying the number of cubes by the volume of each cube.

The edge length of each cube is 3/4 cubic inch, so the volume of each cube is:

(3/4)³ = 27/64 cubic inches.

Therefore, the volume of the rectangular prism is:

24 x (27/64) = (24 x 27)/(4 x 4 x 4) = 27/2 cubic inches.

So the volume of the rectangular prism is 27/2 cubic inches.

We are given that the right rectangular prism is made up of 24 cubes, and that each cube has an edge length of 3/4 cubic inch. We want to find the volume of the prism.

Find the volume of each cube:

The volume of a cube is given by V = s³, where s is the length of an edge. In this case, we are given that the length of an edge is 3/4 cubic inch, so we can substitute that value into the formula:

V = (3/4)³

V = 27/64 cubic inches

So the volume of each cube is 27/64 cubic inches.

Find the volume of the rectangular prism:

To find the volume of the rectangular prism, we need to multiply the number of cubes by the volume of each cube. We know that there are 24 cubes, so we can substitute that value into the formula:

Volume of prism = number of cubes x volume of each cube

Volume of prism = 24 x (27/64)

Volume of prism = (24 x 27)/(4 x 4 x 4)

Volume of prism = 27/2 cubic inches

So the volume of the rectangular prism is 27/2 cubic inches.

Therefore, the volume of the right rectangular prism is 27/2 cubic inches, and explains how that value was obtained from the given information.

Learn more about volume

https://brainly.com/question/13338592

#SPJ1

Other Questions
Explain the statistical meaning of a chi-square value with an associated p-value of less than 0.05. Use a hypothesis that had a p-value 2b Every point is in one of the four quadrants. True or False.2c The abscissa of an ordered pair is always positive. True or false.Pls help I need this on rsm and get it correct PLEASE HELP ASAP Question 2(Multiple Choice Worth 2 points)(Line of Fit LC)A scatter plot is shown on the coordinate plane.scatter plot with points plotted at 1 comma 7, 1 comma 8, 2 comma 5, 3 comma 6, 4 comma 4, 5 comma 5, 5 comma 6, 6 comma 3, 7 comma 5, 8 comma 2, 9 comma 4, and 10 comma 2Which of the following graphs shows a line on the scatter plot that fits the data? scatter plot with points plotted at 1 comma 7, 1 comma 8, 2 comma 5, 3 comma 6, 4 comma 4, 5 comma 5, 5 comma 6, 6 comma 3, 7 comma 5, 8 comma 2, 9 comma 4, and 10 comma 2, with a line drawn through about 1 comma 7 and 3 comma 6 scatter plot with points plotted at 1 comma 7, 1 comma 8, 2 comma 5, 3 comma 6, 4 comma 4, 5 comma 5, 5 comma 6, 6 comma 3, 7 comma 5, 8 comma 2, 9 comma 4, and 10 comma 2, with a line drawn through about 1 comma 8 and 5 comma 6 scatter plot with points plotted at 1 comma 7, 1 comma 8, 2 comma 5, 3 comma 6, 4 comma 4, 5 comma 5, 5 comma 6, 6 comma 3, 7 comma 5, 8 comma 2, 9 comma 4, and 10 comma 2, with a line drawn through about 2 comma 5 and 4 comma 4 scatter plot with points plotted at 1 comma 7, 1 comma 8, 2 comma 5, 3 comma 6, 4 comma 4, 5 comma 5, 5 comma 6, 6 comma 3, 7 comma 5, 8 comma 2, 9 comma 4, and 10 comma 2, with a line drawn through about 1 comma 4.5 and 2 comma 4.5 Which retirement plan(s) is not managed by the U.S. government?1. Fixed AnnuityII. Traditional IRAIII. Roth IRAIV. Social SecurityA. I, IVB. II, IIIC. I, III, IV D. I, II, III In Exercises 3-6, find the indicated measure. Explain your reasoning. Show your work Match each description to the correct punctuation mark.used for emphasizing or changing a topic within asentenceused to eliminate unwanted parts of a long quotationused to separate clauses, phrases, coordinatingadjectives, and nonessential words please help me out with this and i will give u brainy if u give me the right answer Question 1 What is the mean of the data set? 684, 615, 648, 598, 654, 612, 606, 621, 642, 689 Select the advantage of using dry reagent strip tests for urinalysis. a) requires large sample volume. b) difficult to use and read. c) difficult to train user. d) easy instrument for reading. Example of cooperative enzymes and how cooperativity relates to functionExample of cooperative binding protein and how cooperativity relates to functionExamples for allosteric regulation in metabolic pathwaysExample of allosteric regulation of a particular enzyme and how this relates to functionPlease also include some methods used in the research how these effects were analyzed In a statement of approximately 50 words explain why the office of personal management (OPM) has instituted hiring preferences for veterans of the military who have returned to civilian life with an honorary discharge Post Card Depot, an large retailer of post cards, orders 8,069,120 post cards per year from its manufacturer. Post Card Depot plans on ordering post card 24 times over the next year. Post Card Depot receives the same number of post cards each time it orders. The carrying cost is $0.08 per post card per year. The ordering cost is $306 per order. What is the annual carrying costs of post card inventory (round the answer to two decimal places)? Find volume of triangular prism I dont know how to solve I know u use a b c base side and height but I dont know which is each? You drive north on a straight-two lane road at constant 88km/h. A truck in the other lane approaches you at a constant 104km/h. Find (a) the truck's velocity relative to you and (b) your velocity relative to the truck. (c) How do the relative velocities ties changes after you and the truck pass each other? Why is Sona Jobarteh's role as a griot unusual? How to do this attachment: In Genome Wide association a technique that includes a sample of about 1 million molecular markers that are distributed across the genome. Researchers are rarely lucky that a set of markers contains the specific casual variant that are responsible for variation in a trait of interest. Thus, when researchers find a GWAS marker exhibits a significal statistical association with the trait, what should be concluded about the likely location of a casual variant? A family has two cars. The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 25 miles per gallon of gas. During one particular week, the two cars went a combined total of 1375 miles, for a total gas consumption of 45 gallons. How many gallons were consumed by each ofthe two cars that week? You are leading a project in which 25% of the team resides outside of your area. They are therefore considered to be virtual resources. Explain how you plan to keep them engaged with your project. Explain some of the challenges you may face in managing these virtual resources. Justify your response. A dog jumps off the 10 m stairs down onto his doggy house which is 4 m high.What is the change in gravitational potential energy of this 3 kg dog? A professor records the following final grades in one course. Construct a frequency table for the grades.AAABBBBBBBBCCCCCCCCDDDDFComplete the table.(Type an integer or decimal rounded to the nearest tenth as needed.)Grade Frequency Relative Frequency Cumulative FrequencyA. ____ ____% _____B ____ _____% ______C ____ _____% ______D ____ _____% ______F ____ _____% ______TOTAL. ____. 1=100%. _______