math practice

What is the value of x in 64 = x^3 ?

• -8

• -4

• 4

• 8

Tags

CCSS.8.EE.A.2

Bob’s living room floor is a rectangle that measures 9 feet by 12 feet. What is the diagonal distance, in feet, across the floor?

• 13

• 15

• 16

• 21

Tags

CCSS.8.G.B.8

Which graph represents a function?

• 
• 
• 
• 

Which statement about the equation is true?

5(d + 11) = 2(d − 19)

• The equation has precisely one solution.

• . The equation has precisely two solutions.

• The equation has infinitely many solutions

• The equation has no solutions.

Tags

CCSS.8.EE.C.7A

What is the value of y in the solution to this system of equations?

3x + 2y = −12

2x + y = 4

• -36

• -12

• 4

• 20

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the value of b for b^2 = 36/64?

• 18/32

• 9/16

• 6/8

• 72/128

Tags

CCSS.8.EE.A.2

The typing rate for Marsha is shown in the graph. The typing rate for Clay is shown in the table.

• Clay types at a rate of 16 words per minute, which is faster than Marsha.

• Marsha types at a rate of 16 words per minute, which is faster than Clay.

• Clay types 2 more words per minute than Marsha.

• Marsha types 2 more words per minute than Clay.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which sets of ordered pairs represent a function? Select all that apply

• (1,1), (1,2), (1,3), (1,4)

• (1,1), (2,2), (3,3), (4,4)

• (1,1), (2,1), (3,1), (4,1)

• (1,4), (2,4), (1,3), (2,3)

• (1,4), (2,2), (3,1), (4,3)

Tags

CCSS.8.F.A.1

Which equation has infinitely many solutions?

• 5x − 5 = 11x + 2 − 1

• 4x + 5 = −4x + 5

• 3x + 4 = 3 + 3x − 1

• 3x + 2 − 2x = x + 2

Tags

CCSS.8.EE.C.7A

The average distance from Earth to the moon is approximately 238,900 miles. What is this distance, in miles, written in scientific notation?

• 2.389 x 10^-5

• 2.389 x 10^5

• 23.89 x 10^4

• 238.9 x 10^3

Tags

CCSS.8.EE.A.3