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3 years ago

A rectangle has an area of 18 square units. What can be said of its height and width? Check all that apply.

Mathematics

1 answer:

Eddi Din [679]3 years ago

8 0

Answer: A, B, and C

Step-by-step explanation:

Area = Length x Width

A. With these dimensions, the area would be 18 sq units

1 * 18 = 18

B. With these dimensions, the area would be 18 sq units

3 * 6 = 18

C. With these dimensions, the area would be 18 sq units

6 * 3 = 18

D. With these dimensions, the area would be 80 sq units

8 * 10 = 80

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Find y if the line through (3, 1) and (9, y) has a slope of 4.

klio [65]

Answer:

y = 25

Step-by-step explanation:

To find slope, we use this expression: $\frac{y2-y1}{x2-x1}$

Since we already know the slope and are trying to figure out a y-value, we can input all of the values we do know in the expression and solve for the missing y.

$\frac{y-1}{9-3}$ =4

Simplify the denominator: $\frac{y-1}{6}$ =4

Multiply both sides by 6 to isolate the y - 1: y - 1 = 24

Add 1 to both sides to isolate the y: y = 25

y = 25

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3 years ago

What is the average rate of change from 0 to 2 of f(x)=x^3-x+4

Kay [80]

$\mathbf{Task.} ~ \mathrm{What~is~the~average~rate~of~change~from~0~to~2~of~} f(x) = x^{3} - x + 4?$

$\mathrm{The~average~rate~} \upsilon ~ \mathrm{of~change~of~the~function~} f(x) ~ \mathrm{over~the~interval~} [x_{1}; \ x_{2}]\\\mathrm{can~be ~ found~on~the~formula \colon}$

$\boxed{\upsilon = \dfrac{\Delta f}{\Delta x} = \dfrac{f(x_{2}) - f(x_{1})}{x_{2} - x_{1}} }$

$\mathrm{For~the~function,} ~ f(x) = x^{3} - x + 4 ~ \mathrm{the~average~rate~of~change~over~the~interval}\\\mathrm{from~0~to~2 \colon}$

$f(0) = 0^{3} -0 + 4 = 4;$

$f(2) = 2^{3} - 2 + 4 = 8 + 2 = 10;$

$\Delta f = 10 - 4 = 6;$

$\Delta x = 2 - 0 = 2.$

$\upsilon = \dfrac{6}{2} = 3.$

$Answer \colon 3~\blacktriangle$

3 0

3 years ago

Evaluate the expression 10 + |9|

IceJOKER [234]

Answer:

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

Last year, Bob used 10 bottles of shampoo and 8 bottles of conditioner. His sister, Kayla, used 7 bottles of shampoo and 6 bottl

REY [17]

The lower ratio would be bob and that dude need to slow down the hair stuff

10 to 8 ratio is about 8.00
7 to 6 ratio is about 9.00

im not to good at math so dubble cheek just in case hope i could help tho

rip my spelling

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4 years ago

Which choice is the solution to the inequality below?

lions [1.4K]

Answer:

Step-by-step explanation:

Dividing the inequality by 2 to get rid of the coefficient of x we get x < 15.

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3 years ago