Quiz about 8th grade math review

Question 1

What is the distance around a circle?

Accepted Answer

Circumference

Answer

Area

Answer

Diameter

Answer

Radius

Question 2

Does this picture show the diameter or radius of a circle?

Accepted Answer

Diameter

Answer

Radius

Question 3

Does this picture show the diameter or radius of a circle?

Accepted Answer

Radius

Answer

Diameter

Question 4

What is the area of this circle?

Accepted Answer

50.24 square meters

Answer

201.06 square meters

Answer

123.12 square meters

Answer

25.12 square meters

Question 5

What is the circumference of this circle ?

Accepted Answer

37.68 cm

Answer

3.14 cm

Answer

24 cm

Answer

68.4 cm

Question 6

What is the area of a circle?

Accepted Answer

The space inside the circle.

Answer

The distance around a circle.

Answer

A line from side to side passing through the center.

Answer

A line from the center to the side.

Question 7

Find the volume of the Sphere

Accepted Answer

523.6 m3

Answer

78.5 m3

Answer

392.5 m3

Answer

62.8 cm3

Question 8

Find the volume of the cylinder.

$$V=\pi r^2h$$

Accepted Answer

1696 $$m^3$$

Answer

4239 $$m^3$$

Answer

1130 $$m^3$$

Answer

565 $$m^3$$

Question 9

What does the "B" in the volume formula V = Bh stand for?

Accepted Answer

Area of the base

Answer

Bottom of the object

Answer

Box

Answer

Between

Question 10

Calculate the volume of this shape using the correct formula. Round to the hundredths place!

Accepted Answer

392.5 cm3

Answer

392.5 cm2

Answer

1177.5 cm³

Question 11

Find the median.
12, 5, 9, 18, 22, 25, 5

Accepted Answer

12

Answer

9

Answer

8

Answer

18

Question 12

Find the mode.
12, 5, 9, 18, 22, 25, 5

Accepted Answer

5

Answer

22

Answer

18

Answer

9

Question 13

Find the range.
12, 5, 9, 18, 22, 25, 5

Accepted Answer

20

Answer

15

Answer

22

Answer

18

Question 14

Find the mean.
90, 100, 95, 85, 60, 80

Accepted Answer

85

Answer

84

Answer

86

Answer

90

Question 15

24 + (-6)

can be rewritten as:

Accepted Answer

24 - 6

Answer

24 + 6

Answer

-24 - 6

Answer

-24 + 6

Question 16

Which expression is equivalent to $$5^4 * 5^3$$ ?

Accepted Answer

$$5^7$$

Answer

$$5^{12}$$

Answer

$$25^7$$

Answer

$$25^{12}$$

Question 17

A system of equations is shown. 3x + 4y = 30 3x + 5y = 33 What is the value of y in the solution to the system of equations?

Accepted Answer

y = 3

Answer

y = 4

Answer

y = 5

Answer

y = 6

Question 18

WHICH IS RANDOM, NOT BIASED

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 19

What place value is the 7 in in the number:  4,521,735?

Accepted Answer

hundreds

Answer

thousands

Answer

tens

Answer

hundred thousands

Question 20

7 feet = ___ inches

Accepted Answer

84 inches

Answer

144 inches

Answer

49 inches

Answer

19 inches

Question 21

The graph of a system of linear equations is shown below.

Which ordered pair is the best estimate for the solution of this system of linear equations?

Accepted Answer

(-3,2)

Answer

(-6,-2)

Answer

(4,-4)

Answer

(6,8)

Question 22

What is the value of 18⁰?

Accepted Answer

1

Answer

18

Answer

0

Answer

-18

Question 23

In the equation y=mx+b, what does the m represent?

Accepted Answer

slope

Answer

y-intercept

Answer

linear

Answer

point-slope

Question 24

Slope is ________.

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Undefined

Question 25

When you dilate a figure, you ______ x and y by a number (the scale factor).

Accepted Answer

Multiply

Answer

Add

Answer

Subtract

Answer

Divide

Question 26

The Pythagorean Theorem is _____.

Accepted Answer

a²+b²=c²

Answer

a²+c²=b²

Answer

b²+c²=a²

Answer

a²-b²=c²

Question 27

In the equation y=mx+b, b is the ____.

Accepted Answer

Y-intercept

Answer

Slope

Answer

X-intercept

Answer

Origin

Question 28

What number is an irrational number?

Accepted Answer

Square root of 50

Answer

Square root of 25

Answer

Square root of 49

Answer

Square root of 81

Question 29

Identify the transformation from ABC to A'B'C'.

Accepted Answer

Reflection across the x-axis

Answer

90^o clockwise rotation

Answer

90^o counter clockwise rotation

Answer

Reflection across the y-axis

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