A line goes thru the point (-3, 2) and has a slope of 4. What is the y-intercept?
A) 0
B) -2/3
C) 14
D) -10

I am in need of assistance

The cost of 4 kilograms is $13 if the unit rate is $3.25kg.

What is the unit rat?

The unit rate is a rate in which the second term in the ratio is 1. For example, if you have a rate of 60 miles per hour, the unit rate would be 60 miles per 1 hour, or simply 60 miles per hour. Another example is if you have a unit price of $2.50 per pound of apples, the unit rate would be $2.50 per 1 pound, or simply $2.50 per pound.

If the unit rate is $3.25/kg, then the cost of 1 kg is $3.25. To find the cost of 4 kg, we can multiply the cost of 1 kg by 4:

4 kg x $3.25/kg = $13

Therefore, the cost of 4 kilograms is $13 if the unit rate is $3.25kg.

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Answer: The last one is a function

Step-by-step explanation:

If A value of x for example 4 produces more than one y value like 1 and 3 it is not a function also graphing it and using the line method helps

Answer:3,575 lbs, or 45% less

Step-by-step explanation:

Unit for garbage collected: pounds (lbs)

Unit for time: month (mo)

Let's use "t" as the variable for time (in months).

Expression for the amount of garbage collected:

For the initial cleanup: 6,500 lbs

For subsequent cleanups: 45% less garbage collected each month, which means they collect 55% of the previous month's garbage. So, the expression for the amount of garbage collected each month (starting from the second month) would be:

0.55^(t-1) * 6,500 lbs

where "t" represents the number of months after the initial cleanup.

Note that for t=1 (i.e., the first subsequent cleanup), the expression evaluates to 0.55^(1-1) * 6,500 lbs = 6,500 * 1 = 6,500 lbs, which is consistent with the initial cleanup. For t=2, the expression evaluates to 0.55^(2-1) * 6,500 lbs ≈ 3,575 lbs, which is 45% less than the amount collected in the first subsequent cleanup.

Answer: 1 1/24

Step-by-step explanation:

2/3 - 3/8 = 25/24. Reduce it and you get 1 1/24

The resultant substraction value of the sum of three hundredths and 256 tenths from 41435 hundredths is equals to the 388.72.

Subtraction is one of the four arithmetic operations along with addition, multiplication and division. Subtraction is an operation representing the removal of an object from a collection. This is indicated by the symbol '-'. For example, there are 5 − 2 books meaning 5 books with 2 taken away, resulting in a total of 3 books. We have sum of three hundredths and 256 tenths. First, 3 hundredths means 3 out of 100, which can be denoted as = 3/100 = 0.03. Similarly, 256 tenth means 256/10 = 25.6. So, the sum of three hundredths and 256 tenths = 25.60 + 0.03 = 25.63 and 41435 hundredths = 414.35. Now, substract 25.63 from 414.35

= 414.35 - 25.63

= 388.72

Hence, required value is 15.805.

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Answer:

g(4)=-2 and g(-4)=1

Step-by-step explanation:

The length of the midsegment of the trapezoid is 38.5. The midsegment is the line segment that connects the midpoints of the two parallel sides of the trapezoid. It divides the trapezoid into two congruent triangles.

To find the length of the midsegment of the trapezoid, we need to first find the midpoint of the two parallel sides of the trapezoid. To do so, we need to use the midpoint formula, which is (x1 + x2) ÷ 2, (y1 + y2) ÷ 2, where (x1, y1) and (x2, y2) are the coordinates of the two points.

For example, if the coordinates of the two points are (1,2) and (5,7), then the midpoint of the two points will be (1+5) ÷ 2, (2+7) ÷ 2 = (6, 4.5).

Once we have the coordinates of the two midpoints, we can use the distance formula to find the length of the midsegment. The distance formula is √((x2-x1)² + (y2-y1)²).

So if the coordinates of the two midpoints are (3,6) and (9,2), then the length of the midsegment will be √((9-3)² +(2-6)²) = √(36+16) = √52 = 38.5.

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The percent decrease in the number of people who went to the local swimming pool over four weeks, starting with a record high of 1,060 people in the first week, was 20%.

To find the percent decrease in the number of people who went to the pool over the four weeks, we need to first find the total number of people who went to the pool over the four weeks and then calculate the percentage decrease from the first week to the fourth week.

Number of people in the first week = 1,060

Number of people in the second week = 1,060 - 110 = 950

Number of people in the third week = 950 + 130 = 1,080

Number of people in the fourth week = 1,080 - 232 = 848

Total number of people over the four weeks = 1,060 + 950 + 1,080 + 848 = 3,938

Percentage decrease in the number of people who went to the pool over the four weeks = ((1,060 - 848)/1,060) * 100% = 20%

Therefore, the percent decrease in the number of people who went to the pool over the four weeks is 20%.

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Andrés is 35 years old, Carlos is 31 years old, and Rodolfo is 24 years old based on the sum is given.

Let's assume the age of Andrés is x years.

According to the problem, Carlos' age is (x - 4) years and Rodolfo's age is (x - 11) years.

Now, we know that the sum of their ages is 90, so we write an equation:

x + (x - 4) + (x - 11) = 90

Simplify following equation:

3x - 15 = 90

Adding 15 to both sides, we get:

3x = 105

Dividing by 3, we get:

x = 35

So Andrés' age is 35 years.

Carlos' age is (x - 4) = 31 years.

Rodolfo's age is (x - 11) = 24 years.

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Translation: The sum of the ages of Andrés, Carlos and Rodolfo is 90 years. Andrew's age exceeds Carlos' age by 4 years and Rodolfo's by 11. Determine the ages of all three

It's 29.75

I divided 85 with 100, which gave me 0.85. Then i calculated the new price(35% of the original one) and i multiplied them.

Hope this helps.

The complement of set Q {-4, -3, -2} if the universal set is P {-5, -4, -3, -2, -1} is defined by:

¬Q = {-5, -1}

If we have a set A defined in an universal set U, we define the complement of A as all the elements of U that are not elements of A.

In this case we have the sets:

P = {-5, -4, -3, -2, -1}

Q = {-4, -3, -2}

Here we want to find the complement of Q in P, so P is the universal set for this problem.

The elements of P that are not elements of Q are:

{-5, -1}

So that is the complement that we are looking for.

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A ratio is a couple of numbers that are looked at. Part-to-part, part-to-entire, and entire-to-part correlations are examples of ratios. Units could conceivably be remembered for the ratios.

A two-layered plane framed by the crossing point of an upward line which is known as the y-axis and a horizontal line called the x-axis is known as a coordinate plane. These are a bunch of opposite lines that converge at nothing, which is known as the beginning. The axes partition the coordinate plane into four segments, every one of which is alluded to as a quadrant.

Requested matches are utilized to chart and find focuses on a coordinate plane. The arranged matches are dependably in the (x, y) structure where the primary number is the x-coordinate and the subsequent number is the y-coordinate. The principal coordinate lets you know how far to move along the x-axis, and the subsequent coordinate lets you know how far to go up or down the y-axis.

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Step-by-step explanation:

There are (9+8+7)  = 24 parts  that add up to 144

each part is then 144/24 = 6

then each side is    9 parts =  9*6 = 54

                8 parts = 8 * 6 = 48

       7 parts    7 * 6 = 42

Answer:

6 and 2/3 feet

Step-by-step explanation:

1 feet=12 inches

x feet=80 inches

80/12=6 and 2/3 feet

The value of B using Sine law is approximately 41.7 degrees.

To use the sine law to find angle B, we need to have either the length of side b or the sine of angle B. However, we can use the sine law to set up an equation involving sine B and then solve for it.

the sine law states:

a/sin A = b/sin B = c/sin C

where a, b, and c are the lengths of the sides of a triangle, and A, B, and C are the opposite angles.

In this case, we are given a = 28.82 ft, c = 47.74 ft, and we want to find B. We can set up the following equation using the sine law:

a/sin A = c/sin C

Substituting the given values:

28.82/sin A = 47.74/sin C

Now, we need to find sin A and sin C. Since the angles in a triangle add up to 180 degrees, we have:

A + B + C = 180

We know that A and C are the angles opposite to sides a and c, respectively, so we can use the sine ratio to express them in terms of a and c:

sin A = a/cos B

sin C = c/cos B

Substituting these expressions into the equation above, we get:

28.82/(a/cos B) = 47.74/(c/cos B)

Simplifying and solving for cos B, we get:

cos B = (28.82 * c) / (a * 47.74)

Now that we know cos B, we can use the identity sin^2 B + cos^2 B = 1 to find sin B:

sin B = sqrt(1 - cos^2 B)

Substituting the given values, we get:

sin B = sqrt(1 - ((28.82 * 47.74) / (a * c))^2)

Calculating this expression gives:

sin B = 0.667

Therefore, angle B is:

B = sin^-1(0.667) = 41.7 degrees (rounded to one decimal place)

So, angle B is approximately 41.7 degrees.

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_____The given question is incomplete, the complete question is given below:

If c = 47. 74 ft and a = 28. 82 ft, find B using sine law.

Step-by-step explanation:

1st method:-

Using congurency:-

In ∆AOC AND ∆COD

1) CO= CO {common side}

2) <OAC = <ODC { inscribed angel on same base CO}

3)OD = OC {radius}

4)∆AOC ≅ ∆COD {SAS fact}

5)∆AOC = ∆ COD {area of congurent traingle is equal}



2nd method:-

Using property of traingles:-

Construction:- Join DA and CB

<ACB = 90° { angle substended by diameter}

CO⊥AB

Now we know that,

Area of traingle = 1/2 B*H

CO is height { of both traingle's}

AO is base {of both traingle's}

Now, ∆AOC= 1/2*CO*AO--1

and, ∆ COD = 1/2 *CO*AO--2

∆AOC= ∆COD {from above 1 and 2}

The proportion of students who took ACT and scored between 18 and 28, P(18 < X < 28) is 0.607.

The proportion of students who took ACT and scored between 18 and 28, P(18 < X < 28) is given by the formula:

P(18 < X < 28) = P(Z < (28 - 21)/5.5) - P(Z < (18 - 21)/5.5)

We can then calculate the z-scores for the lower and upper bounds of the range as follows:

Z1 = (28 - 21)/5.5 = 1.27Z2 = (18 - 21)/5.5 = -0.55

Using a z-table or calculator, we can find the probabilities associated with these z-scores:

P(Z < 1.27) = 0.898P(Z < -0.55) = 0.291

Therefore,P(18 < X < 28) = P(Z < 1.27) - P(Z < -0.55) = 0.898 - 0.291 = 0.607

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The answer is  option (d)  "The volume of  sphere can be interpreted as  product of  radius cubed and  constant factor."

The volume of a three-dimensional object refers to the amount of space that it occupies. More specifically, it is a measure of the amount of enclosed space within a solid shape, like a cube, sphere, cylinder, or any other three-dimensional object. The formula for calculating volume of  solid depends on its shape. The formula for the volume of a sphere, as mentioned in the previous question, is V=4/3πr³, where r is the radius of the sphere.

Volumes are typically measured in cubic units, like cubic meters, cubic centimeters, or cubic feet.

The statement that is true is: "The volume of sphere can be interpreted as  product of radius cubed and  constant factor."

The formula for the volume of a sphere, V=4/3πr³, shows that the volume is proportional to the cube of the radius. This means that if the radius of a sphere is doubled, the volume will increase by a factor of 2³=8. Similarly, if the radius is tripled, the volume will increase by a factor of 3³=27.

The constant factor in the formula, 4/3π, is a fixed value that applies to all spheres, regardless of their size. It is a constant because it does not depend on the radius of the sphere.

Therefore, we can interpret the formula for the volume of a sphere as the product of the radius cubed and a constant factor.

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The table of values is completed below and the function of the sequence is T(n) = n(n + 2)

From the question, we have the following parameters that can be used in our computation:

Pattern  Counters

1                 3

2                8

3                15

4                24

When the pattern is 5, we have

Counters(5) = 5 * (6 + 1)

So, we have

Counters = 35

So, the table is

Pattern number             1       2       3       4       5

Number of counters      3       8      15      24     35

In (a), we have

Counters(5) = 5 * (6 + 1)

Express 6 as 5 + 1

So, we have

Counters(5) = 5 * (5 + 1 + 1)

So, we have

Counters(n) = n * (n + 1 + 1)

As an n-th term, we have

T(n) = n(n + 2)

Hence, the function is T(n) = n(n + 2)

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If each shirt is the same price, the cost of each one include the following:  B. $20.75.

In Mathematics, a unit price can be defined as the price that is being charged by a seller for the sale of a single unit of product.

In order to determine the unit price for the shirt, we would divide the cost of shirts by the number of shirts based on the following mathematical equation (formula);

Unit price = Cost of shirts/Number of shirts

By substituting the given parameters into the unit price formula, we have the following;

Unit price = $124.50/6

Unit price = $20.75.

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Complete Question:

Luisa will buy 6 shirts for $124.50. If each shirt is the same price, how much does each one cost?

A. $20.07

B. $20.75

C. $27.05

D. $27.50

so (0,-3) and  (2,0) is a solution.   (2,2) and (-3,0) is not a solution. as  the equation of the line passing through the points (0,-3) and (2,0) is y = (3/2)x - 3 we need to substitute points to check valid or not

what is equation ?

An equation is a mathematical statement that asserts that two expressions are equal. In other words, an equation says that one expression on the left side of the equals sign is the same as the expression on the right side of the equals sign. An equation typically includes variables

In the given question,

To determine the equation of the line passing through the points (0,-3) and (2,0), we can use the slope-intercept form of a linear equation:

y = mx + b

where m is the slope and b is the y-intercept.

The slope of the line can be found using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

where (x₁, y₁) = (0,-3) and (x₂, y₂) = (2,0)

m = (0 - (-3)) / (2 - 0) = 3/2

So the equation of the line is:

y = (3/2)x - 3

Now we can check which ordered pair is a solution to this equation by plugging in the x and y values into the equation and seeing if it holds true.

A. (0,-3)

y = (3/2)x - 3

-3 = (3/2)(0) - 3

-3 = -3

This is true, so (0,-3) is a solution.

B. (2,0)

y = (3/2)x - 3

0 = (3/2)(2) - 3

0 = 0

This is true, so (2,0) is a solution.

C. (2,2)

y = (3/2)x - 3

2 = (3/2)(2) - 3

2 = 0

This is false, so (2,2) is not a solution.

D. (-3,0)

y = (3/2)x - 3

0 = (3/2)(-3) - 3

0 = -9/2

This is false, so (-3,0) is not a solution.

Therefore, the solutions to the equation represented by the graph are A. (0,-3) and B. (2,0).

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At the end of 7 years:

a. The man received approximately GHZ 6425.13 as interest.

b. The total amount received by the man is approximately GHZ 22,294.80.

The interest for the first 4 years at 3% compound interest:

Principal amount (P) = GHZ 14,100.00

Rate of interest (R) = 3% = 0.03

Time period (T) = 4 years

The formula for compound interest:

[tex]A = P (1 + R)^T[/tex]

A = 14,100 x (1 + 0.03)⁴

A = 14,100 x (1.03)⁴

A ≈ GHZ 15,869.67

Interest for the first 4 years = A - P

Interest = 15,869.67 - 14,100

Interest ≈ GHZ 1769.67

The total amount at the end of 7 years at 12% per annum:

(P) = GHZ 15,924.57

(R) = 12% = 0.12

(T) = 3 years (remaining 7 years - initial 4 years)

A = 15,869.67(1 + 0.12)³

A = 15,869.67(1.12)³

A ≈ GHZ 22,294.80

a. Interest for the remaining 3 years = A - P

Interest = 22,294.80 - 15,924.57

Interest ≈ GHZ 6425.13

b. Total amount received at the end of 7 years = Principal amount + Interest for 4 years + Interest for 3 years

Total amount = 14,100 + 1769.67 + 6425.13

Total amount ≈ GHZ 22,294.80

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Answer:

25.455844, soo around 25

Step-by-step explanation:

Therefore, the surface area of the given triangular prism is approximately 126.56 square units.

Surface area is a measure of the total area that the surface of a three-dimensional object occupies. It is the sum of the areas of all the faces or surfaces of an object. Surface area is usually expressed in square units, such as square inches, square centimeters, or square meters, depending on the unit system being used.

For example, if you have a cube with side length "s", its surface area can be calculated by finding the area of each face and adding them together. Since a cube has six square faces of equal size, the formula for its surface area would be:

Surface Area of Cube = 6s²

by the question.

To find the surface area of a triangular prism, we need to calculate the area of all its faces and then add them together.

First, let's find the area of the two triangular bases. Each base is a right triangle with base 5, height 4, and hypotenuse 7. We can use the Pythagorean theorem to calculate the height of the triangle:

[tex]4^2 + (5/2)^2 = h^2[/tex]

[tex]16 + 6.25 = h^2[/tex]

[tex]22.25 = h^2[/tex]

[tex]h = \sqrt(22.25)[/tex]= 4.71

So, the area of each base is:

[tex]A = 1/2 * base * height = 1/2 * 5 * 4.71 = 11.78[/tex]

Next, we need to find the area of the three rectangular faces. The two congruent rectangular faces have dimensions of 5 by 6, and the remaining rectangular face has dimensions of 7 by 6. The area of each rectangular face is simply the product of its dimensions:

[tex]A1 = 5 * 6 = 30[/tex]

[tex]A2 = 5 * 6 = 30[/tex]

[tex]A3 = 7 * 6 = 42[/tex]

Finally, we can calculate the total surface area of the prism by adding up the areas of all five faces:

[tex]Total surface area = 2A(base) + A1 + A2 + A3[/tex]

[tex]Total surface area = 2(11.78) + 30 + 30 + 42[/tex]

[tex]Total surface area =126.56[/tex]

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The experimental probability of the following spin landing on white is 5/7, or roughly 0.714 based on given events.

The number of times an event occurred divided by the total number of trials done is used to compute the experimental probability of the event. In this instance, there have been 14 trials, and the event is landing on white.

Out of 14 spins, the spinner landed on white 10 times, according to the information provided. the following is the experimental likelihood of landing on white:

Experimental probability is calculated as follows: White landings / total spins

10/14 is the experimental probability.

5/7 is the experimental probability.

Hence, the experimental likelihood that the following spin will land on white is 5/7, or roughly 0.714. It's crucial to keep in mind that this likelihood is just based on the small sample size of 14 spins and might not fully reflect the spinner's long-term chances of landing on white.

The design and balance of the spinner might affect the results, thus if there are any problems with its construction, the spinner may not be an accurate depiction of likelihood. The experimental probability might not be helpful in this situation to forecast future events.

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Answer the answer is a

Answer:

Calculation:

Frequency table

Other statistical characteristics:

Average (mean): μ=93.9

Absolute deviation: 153.4

Mean deviation: 5.1133333333333

Minimum: 78

Maximum: 104

Variance: 40.956666666667

Standard deviation σ=6.3997395780349

Corrected sample standard deviation s=6.5091447608147

Coefficient of variation cV=0.069319965503884

Signal-to-noise ratio SNR=14.42585830404

Median: 95

Quartile Q1: 89.75

Quartile Q2: 95

Quartile Q3: 99

1st decile: 85.2

2nd decile: 88.2

3rd decile: 91.3

4th decile: 93

5th decile: 95

6th decile: 97

7th decile: 97.7

8th decile: 99

9th decile: 101.9

Interquartile range IQR: 9.25

Quartile Deviation QD: 4.625

Coefficient of Quartile Deviation CQD: 0.049006622516556

Lower fence: 75.875

Upper fence: 112.875

Set of outliers: {} - empty set - no outliers found

Interdecile range IDR: 16.7

Mode: 97 - unimodal

Geometric mean: 93.673540144338

Harmonic mean: 93.43824696186

Sum: 2817

Sum of squares: 1228.7

Sum of absolute values: 2817

Average absolute deviation: 5.1133333333333

Range: 26

Frequency table :

Z-score: {-0.1406, -1.3907, 0.4844, -2.3282, 1.5782, -0.9219, -0.2969, 0.0156, 0.4844, -1.0782, -2.4845, 0.1719, 1.1094, -0.1406, 0.4844, 0.7969, -1.0782, 1.4219, -0.6094, 0.1719, 1.2657, 0.4844, 0.7969, -0.4531, 0.1719, -0.2969, 1.1094, -0.7657, 0.7969, 0.6407}

Count items: 30

The value of the investment after 3.5 years is approximately $2530.67.

The principal amount refers to the initial amount of money borrowed or invested, excluding any interest or additional fees. For example, if someone takes out a loan for $10,000, the principal amount is $10,000, and this is the amount that must be repaid to the lender, not including any interest that may accrue over time. Similarly, if someone invests $5,000 in a savings account, the principal amount is $5,000, and any interest earned on that amount will be calculated based on the principal amount. The principal amount is an important concept in finance and investing, as it determines the starting point for calculating interest, returns, and other financial transactions.

The formula for compound interest is:

[tex]A= P(1+\frac{r}{n} )^{nt}[/tex]

Where:

A = the final amount

P = the principal amount (initial investment)

r = the annual interest rate (as a decimal)

n = the number of times the interest is compounded per year

t = the time (in years)

In this case, we have:

P = 2000

r = 0.04 (4% as a decimal)

n = 12 (compounded monthly, so 12 times per year)

t = 3.5 (3.5 years)

Plugging these values into the formula, we get:

[tex]A= 2000(\frac{1+0.04}{12})^{12*3.5}[/tex]

A = 2000(1.00333333)⁴²

A ≈ 2530.67

Therefore, the value of the investment after 3.5 years is approximately $2530.67.

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