Quiz about March 14 - March 18 Raider Prep Math 8

Question 1

Which of the following statements is true?

Accepted Answer

$$\frac{1}{5}=20\%$$

Answer

$$0.5>\frac{3}{4}$$

Answer

$$45\%<0.4$$

Answer

$$15\%>\frac{3}{5}$$

Question 2

Directions: Select all correct answers. You must select all that apply to receive full credit.

Identify all the numbers that simplify to an integer.

Accepted Answer

$$\sqrt[]{256}$$

Accepted Answer

$$\frac{15}{3}$$

Accepted Answer

$$7^2$$

Answer

$$4.6...$$

Answer

$$4\pi$$

Question 3

What is $$-\sqrt[]{64}$$ ?

Accepted Answer

$$-8$$

Answer

$$-16$$

Answer

$$8$$

Answer

$$16$$

Question 4

Which expression is equivalent to:

$$-4\left(2x-8\right)-2x$$

Accepted Answer

$$-10x+32$$

Answer

$$-6x+32$$

Answer

$$-10x-32$$

Answer

$$-6x+32$$

Question 5

Solve the following inequality:

$$7x-6<3x+6$$

Accepted Answer

$$x<3$$

Answer

$$x>3$$

Answer

$$x<0$$

Answer

$$x<10$$

Question 6

This table of values shows coordinates for points that satisfy a linear function. What are the slope and y-intercept of this function?

Accepted Answer

The slope is 3 and the y-intercept is (0, -6).

Answer

The slope is 3 and the y-intercept is (2, 0).

Answer

The slope is $$\frac{1}{3}$$ and the y-intercept is (2, 0).

Answer

The slope is $$\frac{1}{3}$$ and the y-intercept is (0, -6).

Question 7

Directions: Select all correct answers. You must select all that apply to receive full credit.

The formula for the volume of a cone ( $$V$$ ) is $$V=\frac{1}{3}\pi r^2h$$ , where $$r$$ is the radius of the cone's base and $$h$$ is the height of the cone. Which of the following are independent variables?

Accepted Answer

Radius of the Base ( $$r$$ )

Accepted Answer

Height of the Cone ( $$h$$ )

Answer

Volume of the Cone ( $$V$$ )

Answer

$$\frac{1}{3}$$

Question 8

Which function corresponds to the following graph?

Accepted Answer

$$y=\frac{3}{2}x-3$$

Answer

$$y=\frac{3}{2}x+2$$

Answer

$$y=\frac{2}{3}x-3$$

Answer

$$y=-\frac{3}{2}x-3$$

Question 9

Jillian wanted to buy her mother roses for her birthday. She purchased 30 roses. Each red rose cost $1.25 and each white rose cost $1.50. Of the roses Jillian purchased, only $$\frac{2}{5}$$ were red roses. What was the total cost of only the red roses?

Accepted Answer

$15.00

Answer

$21.00

Answer

$18.00

Answer

$12.00

Question 10

On Friday, the store had 35 loaves of bread. On Saturday, they had 12 loaves of bread. What was the percent change?

Accepted Answer

66%

Answer

6%

Answer

19%

Answer

191%

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