So I’ve been stuck on this for a very long time it’s so annoying please hellpppp me

In triangle ABC, measure of side BC or a is 8.8 unit

In trigonometry, the cosine rule states that the square of the length of any side of a given triangle is the sum of the squares of the lengths of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

cosA = (b² + c² - a²)/2bc

Given,

In triangle ABC

A = 49° , b = 10, c = 11

By cosine rule

cosA = (b² + c² - a²)/2bc

cos49° = (10² + 11² - a²)/2(10×11)

0.656 = (100 + 121 - a²)/220
144.32 = 100 + 121 - a²

a² = 221 - 144.32

a² = 76.68

a = √76.68

a = 8.7567 ≈ 8.8

Hence, 8.8 unit is measure of side a in triangle ABC.

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Answer:

Step-by-step explanation: 1. Down

2. Claire's line would go higher because she began further away from her house.

3. The lines would have the same slope , since they are going the same speed.

Step-by-step explanation:

Refer to pic...........

The original number would be 3.

An equation is an expression that shows the relationship between two or more numbers and variables.

Consider that the 10s digit = x

And the units digit = y

x +y = 11                                  

The Sum of the digits = 11

10x + y + 45 = 10y + x            

Then Reversed number is 45 more  than original,

10x - x + y + 45 = 10y              

9x + y + 45 = 10y                    

9x + 45 = 10y - y                    

9x + 45 = 9y

Now, Put x +  y = 11 into the equation just found.

9x + 45 = 9(11 - x)                    

x + 45/9 = 11 - x                      

2x + 5 =     11                          

2x = 11 - 5

2x = 6                                      

x = 6/2

x = 3

Therefore, we have;

x + y = 11

3 + y = 11        

y = 11 - 3

y = 8

Henece, we can conclude that the original number is 38 and the new number is 83 which the digits are reversed.

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The data set is not periodic, look at the graph below.

A relation R(x) is periodic with period T if:

R(x) = R(x + T)

For every value of x.

So the function has unique values in [0, T] tha are repeated in the interval [T, 2T] and so on.

Here we have a table with some data in it, and we want to see if it is periodic.

Now, wecan see that the number of cars goes up and down, so there may be a "period-like" behavior.

But the relation is clearly non-periodic.

Even if you graph the points you can see it, there is a pattern (for the grouping of the points) but it is not periodic.

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Answer:

not periodic

Step-by-step explanation:

They are correct took the test thank you for your help

Dividing the fraction (x - 2) / (3x - 21) by (5x - 10) / (9x - 63) will result to 3/5.

To divide two fractions, we need to multiply the first fraction by the reciprocal of the second fraction. The reciprocal of a fraction is simply the fraction flipped upside down. So, the reciprocal of the second equation (5x - 10) / (9x - 63) is (9x - 63) / (5x - 10). Now we can multiply the two fractions together to get the answer.

(x - 2) / (3x - 21) × (9x - 63) / (5x - 10)

= [(x - 2)(9x - 63)] / [(3x - 21)(5x - 10)]

Now we can simplify the numerator and denominator by factoring out the common factors:

= (9x - 63)(x - 2) / (3x - 21)(5x - 10)

= (3)(3x - 21)(x - 2) / (3x - 21)(5)(x - 2)

= 3/5

So, the final answer is 3/5.

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The formula to calculate the cost to rent Toyota Etios is R15 + R3 n.

The formula to calculate the cost to rent VW Polo Vivo is R11.50 + R3 n.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

We have the formula used to calculate the cost to rent the Ford Figo is cost (in rand)= R900 + R7 x n.

Now, Toyota Etios cost R15 per Km and per km charge will be R3.

So, the formula to calculate the cost to rent is

= R15 + R3 n

and, VW Polo Vivo cost R11.50 per Km and per km charge will be R3.

So, the formula to calculate the cost to rent is

= R11.50 + R3 n

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Answer:Given that y represents the cost, and x represents the number of classes, to complete the statements, the table is given for Gymnastics while the equation, y = 18x + 20 is given for Ice-skating program.

Since the table already shows the cost for each specific number of classes for Gymnastics, find that of Ice-skating program for 1, 2, 3, and 4 classes.

For 1 class, substitute x = 1 into y = 18x + 20:

y = 18(1) + 20

y = $38

For 2 class, substitute x = 2 into y = 18x + 20:

y = 18(2) + 20

y = $56

For 3 class, substitute x = 3 into y = 18x + 20:

y = 18(3) + 20

y = $74

For 4 class, substitute x = 4 into the equation y = 18x + 20:

y = 18(4) + 20

y = $92

From the above, we can conclude that, Gymnastics is less expensive when the classes is 1.

Ice-skating is less expensive  when the classes is 3 or 4.

Step-by-step explanation:

From the given function, When the number of classes is 1 the football is less expensive.

When the number of classes is 1, the basketball is less expensive.

A function in mathematics from a set X to a set Y allocates exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.

a mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

Four main categories can be used to classify different sorts of functions. dependent upon element Function is a one-to-one relationship, a many-to-one relationship, onto function, one-to-one and into function.

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Answer:

The notation f⁻¹(-3) refers to the value(s) of x for which f(x) = -3.

However, the function f is not given in the prompt. Therefore, we cannot determine the value(s) of x for which f(x) = -3 or find f⁻¹(-3) without knowing the definition of f.

Step-by-step explanation:

Answer:

mean = 86

mean w/o 2 lowest = 92

median = 91

median w/o 2 lowest = 93

mode = 98

mode w/o 2 lowest = 98

Step-by-step explanation:

This is a between-subjects study. The independent variable is the type of medication given. The dependent variable is the participants' blood pressures. The experimenters reported a p-value (Sig.) Based on Mean (top row) of 0.071. No, this is not statistic significant. No, we don't want a significant p-value for the Levene’s Test. This p-value of 0.071 indicates that the variance in the three groups is not significantly different.

1.

a. The p-value (Sig.) Based on Mean (top row): 0.071
b. This p-value indicates that the null hypothesis cannot be rejected, meaning that there is no significant difference between the three groups.
c. The Levene’s Test does not require a significant p-value for the data to be valid.
d. This p-value indicates that there is no significant difference in the variance between the three groups.

2. This is a between-subjects study.
Independent Variable: Dosage of HyBlox (high dose HyBlox, low dose HyBlox, or placebo sugar pill)
Dependent Variable: Blood Pressure on a continuous scale

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The difference between the two points is a vertical displacement of 5 units downward from point T to point V.

The distance formula is used to calculate the distance between two points in a two- or three-dimensional coordinate system. It is derived from the Pythagorean theorem and involves finding the square root of the sum of the squares of the differences between the corresponding coordinates of the two points.

The difference between point T(9, -4) and point V(9, -9) is 5 units in the y-direction. Specifically, the y-coordinate of point V is 5 units less than the y-coordinate of point T. This can be expressed as:

V - T = (9, -9) - (9, -4) = (0, -5)

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Matrix A is diagonalizable

Yes, it is possible to test a matrix \( A \in M_{n \times n}(R) \) for diagonalizability. If \( A \) is diagonalizable, then there exists an invertible matrix \( Q \) and a diagonal matrix \( D \) such that \( A = Q D Q^{-1}\). To find these matrices, we can use the following steps:

1. Find the characteristic polynomial \( p(\lambda) \) of \( A \).
2. Find the eigenvalues of \( A \) by solving \( p(\lambda) = 0 \).
3. Find the corresponding eigenvectors for each eigenvalue of \( A \).
4. Construct the matrix \( Q \) as a matrix whose columns are composed of the eigenvectors of \( A \).
5. Construct the diagonal matrix \( D \) by placing the eigenvalues of \( A \) along the diagonal entries.
6. Check that \( A = Q D Q^{-1} \).

If these steps all check out, then \( A \) is diagonalizable.

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In a rhombus, all sides are equal in length, so we can write:

AB = BC = CD = AD

Let's use n to represent the length of any of the sides, such as AB. Then, we can write:

AD = AB

Therefore, the expression in terms of n to represent AD in rhombus ABCD is simply:

AD = n

The complete sentence would be: "For 4x^(2)+6x+2=0, a=4, b=6, and c=2."

To complete the sentence, we need to identify the values of a, b, and c in the given equation. The equation is in the form of ax^(2)+bx+c=0, where a, b, and c are the coefficients of the respective terms.

Therefore, to fill in the blanks in the sentence, we can simply match the coefficients in the given equation with the corresponding letters:

a = 4, because the coefficient of the x^(2) term is 4
b = 6, because the coefficient of the x term is 6
c = 2, because the constant term is 2

So the complete sentence would be: "For 4x^(2)+6x+2=0, a=4, b=6, and c=2."

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The answer are mean and standard deviation of this probability distribution are 1.2 and 1.04403065089, respectively

Given that the probability of a new vehicle requiring warranty service within the first year is 10%, we can use the binomial probability formula to answer the questions.

The binomial probability formula is:

P(x) = nCx * p^x * (1-p)^(n-x)

Where:

n = number of trials

x = number of successes

p = probability of success

nCx = number of combinations of n things taken x at a time

a. The probability that none of these vehicles requires warranty service is:

P(0) = 12C0 * 0.1^0 * 0.9^12 = 0.282429536481

b. The probability that exactly one of these vehicles requires warranty service is:

P(1) = 12C1 * 0.1^1 * 0.9^11 = 0.35527136788

c. The probability that exactly two of these vehicles require warranty service is:

P(2) = 12C2 * 0.1^2 * 0.9^10 = 0.23622320128

d. The mean of this probability distribution is:

μ = n * p = 12 * 0.1 = 1.2

The standard deviation of this probability distribution is:

σ = √(n * p * (1-p)) = √(12 * 0.1 * 0.9) = 1.04403065089

Therefore, the mean and standard deviation of this probability distribution are 1.2 and 1.04403065089, respectively.

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Answer:

volume is L × W x

Step-by-step explanation:

15 x 12 x 6

see attached I wrote down for you.

Answer:

360 ft³

Step-by-step explanation:

Volume of a rectangular pyramid = (lwh)/3 = (12x6x15) / 3 = 1080/3 = 360 ft³

V = (length x width x height) ÷ 3

If Ella is 15 meters away from Mary and 9 meters away from Dante, then distance between Dante and Mary are 12 meters away from each other.

It is given that Ella is 9 meter away from Dante and in the Dante is in south of Ella. This means that if we consider a plane ground and mark the directions as north, south, east and west, Ella and Dante will be in north and south direction respectively. Since Mary is in the east direction of Dante, this means She will be in the South East direction of Ella and about 15 meters away from her. This creates a triangular connection between them.

Hence by applying the Pythagoras theorem, we get following equation:

ED^2 + DM^2 = EM^2

where,

ED = Distance between Ella and Dante

DM = Distance between Dante and Mary

EM = Distance between Ella and Mary

9^2 + DM^2 = 15^2

81 + DM^2 = 225

DM^2 = 144

DM = 12

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Answer: 1. x < 22       2. First option          3. x ≥ 5

Step-by-step explanation:

Closed dots means equal to or less/greater than.

Open dots means only less/greater than.

1. Open dot and arrow points left so x < 22

2. Only greater than so first option (Open dot and arrow points right)

3. Closed dot and arrow points right so x ≥ 5

Hope this helps!

1. The dimensions of A are 6 x 4.

2. The function is S could be onto, but it cannot be one-to-one.  (C)

1. This is because T: R4 → R6 is a matrix transformation that maps from a 4-dimensional space to a 6-dimensional space. Therefore, the matrix A must have 6 rows and 4 columns in order to be able to multiply with a 4-dimensional vector x and produce a 6-dimensional vector T(x).

2. This is because S: R3 → R2 is a matrix transformation that maps from a 3-dimensional space to a 2-dimensional space.

This means that there are more input vectors than there are output vectors, so it is not possible for S to be one-to-one. However, S could be onto if every vector in R2 can be obtained from some vector in R3 through the transformation S(x) = Bx.

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Answer:

burrito $3.00 , taco $1.50

Step-by-step explanation:

using the variables b and t for burrito and taco , then

2t + 2b = 9 → (1)

t + 3b = 10.5 → (2)

multiplying (2) by - 2 and adding to (1) will eliminate t

- 2t - 6b = - 21 → (3)

add (1) and (3) term by term to eliminate t

(2t - 2t) + (2b - 6b) = 9 - 21

0 - 4b = - 12

- 4b = - 12 ( divide both sides by - 4 )

b = 3

substitute b = 3 into either of the 2 equations and solve for t

substituting into (1)

2t + 2(3) = 9

2t + 6 = 9 ( subtract 6 from both sides )

2t = 3 ( divide both sides by 2 )

t = 1.5

1 burrito costs $3.00 and 1 taco costs $1.50

The function value and the indicated trigonometric value are not specified in the question. Additionally, the specified quadrant is not mentioned. Therefore, it is not possible to provide an accurate answer to this question.

However, generally speaking, to find the indicated trigonometric value in a specified quadrant using a function value, you can use the following steps:

1. Identify the function and the quadrant in which the value is to be found.
2. Use the function value to find the reference angle in the first quadrant.
3. Use the reference angle and the specified quadrant to find the indicated trigonometric value.

For example, if the function value is sin(θ) = 1/2 and the specified quadrant is II, you can use the following steps to find the indicated trigonometric value:

1. Identify the function and the quadrant: sin(θ) and II.
2. Find the reference angle in the first quadrant: θ = 30°.
3. Use the reference angle and the specified quadrant to find the indicated trigonometric value: sin(150°) = 1/2.

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The answer is 5(2y-3).

Factorization is an easy process wherein you just need to find out the common factors and solve your question as per requirement.

To factor 10y-15, we need to find the greatest common factor (GCF) of the two terms. The greatest common factor (GFC) of 10 and 15 is 5. We can then factor out the GCF from each term to get:

10y-15 = 5(2y-3)

where 5 is a whole number greater than 1.

So the answer as a product with a whole number greater than 1 is 5(2y-3).

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Using linear approximation, we estimate that ([tex]32.03^{4/5}[/tex]) is approximately equal to 31.952. It's important to note that this is only an estimate and may not be exact.

To estimate the value of  ([tex]32.03^{4/5}[/tex]) using linear approximation, we start by finding the differential of the function f(x) = [tex]x^{4/5}[/tex] at the point x = 32.

[tex]f(x) = x^{4/5}[/tex]

[tex]f'(x) = 4/5x^{-1/5}[/tex]

Evaluating [tex]f'(32)[/tex], we get:

[tex]f'(32) = (4/5)(32)^{-1/5} = 0.1585[/tex]

Now, using the linear approximation formula:

[tex]f(x) ≈ f(a) + f'(a)(x - a)[/tex]

where a is the point at which we are estimating the function, we have:

[tex]f(32.03) = f(32) + f'(32)(32.03 - 32)[/tex]

[tex]= 32^{4/5} + 0.1585(0.03)[/tex]

[tex]= 31.952[/tex]

Linear approximation is a useful tool for approximating values of functions near a given point, but it has limitations and may not work well for functions that are highly nonlinear or have discontinuities.

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Answer:

-14 gallon jugs

- 10 half-gallon jugs

Step-by-step explanation:

I'm not an expert at solving these algebraically, so I'm going to do this the old-fashioned way: Guess and Check.

Lets sum up our information:

- He bought 19 gallons

- He bought those 19 gallons with 24 jugs

- There are half-gallon and full gallon jugs

We know that if he bought 24 full gallon jugs, he would have 24 gallons of milk, but he only has 19, so this is not the answer

We know that if he bought 23 full gallons jugs and one half-gallon jug, he would have 23.5 gallons of milk, but he only has 19 gallons of milk, so this is also not the answer.

We keep reducing the number of full gallon jugs and increasing the number of half-gallon jugs until we reach 19 gallons total.

After trying different combinations, we can figure out that he bought

-14 gallon jugs

- 10 half-gallon jugs

Answer:

Step-by-step explanation:

A.

Answer:

The answer is C

The maximum possible height for the fish tank is  23.749 inches

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

We need to convert the tank capacity from gallons to cubic feet since we know the conversion factor of 1 cubic foot of water = 7.48 gallons:

Tank capacity = 100 / 7.48 cubic feet

= 13.369 cubic feet

Volume of fish tank = Length x Width x Height

= 54 inches x 18 inches x Height

= 972 inches³ x Height

The maximum possible height of the fish tank

Volume of fish tank = Tank capacity

972 cubic inches x Height = 13.369 cubic feet

Height = 13.369 cubic feet / 972 cubic inches

= 0.013753 cubic feet / cubic inches

To convert cubic feet to cubic inches, we multiply by 1728

Height = 0.013753 x 1728

= 23.7488 cubic inches / inch³

Hence, the maximum possible height for the fish tank is  23.749 inches

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Answer:

x = -2

x = 3

Step-by-step explanation:

Answer:

15=2.00x+1.50y

Step-by-step explanation:

Instead of 200 participants aged 20 to 40, the research would need to unitary method include 100 young and 100 elderly people. One possible change would be to divide the sample into age groups.

The unit technique is a strategy for addressing issues that entails first figuring out the value of a single unit, then multiplying that value to figure out the needed value. Simply expressed, the unit technique is used to extract a single unit value from a multiple that is provided. For example, 40 pens would cost 400 rupees, which is equal to the cost of one pen.

Part A:

A randomized controlled trial would be the ideal approach for the new investigation (RCT). A control group and an experimental group should both be included in the study.

The Visual Analog Scale is a pain scale that may be used by participants to self-report their level of pain, which is one of the variables that should be measured (VAS). Functional status, quality of life, and unfavorable treatment effects are other factors that might be assessed.

Part B:

Instead of 200 participants aged 20 to 40, the research would need to include 100 young and 100 elderly people. One possible change would be to divide the sample into age groups.

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