NWEA Math 4

Question 1

On a coordinate plane, what are the coordinates of a point 3 units right and 4 units down from the origin?

Accepted Answer

(3, −4)

Answer

Right means positive x (+3) and down means negative y (−4), giving (3, −4).

Question 2

Simplify: 4(2x + 3) − 5x

Accepted Answer

3x + 12

Answer

Distribute: 8x + 12 − 5x = 3x + 12.

Question 3

A bag contains 5 red marbles and 3 blue marbles. What is the probability of randomly picking a blue marble?

Accepted Answer

3/8

Answer

There are 3 blue out of 8 total marbles, so P(blue) = 3/8.

Question 4

What is the volume of a rectangular prism with length 5, width 4, and height 3?

Accepted Answer

60

Answer

Volume = length × width × height = 5 × 4 × 3 = 60 cubic units.

Question 5

Which of the following is a rational number?

Accepted Answer

√9

Answer

√9 = 3, which is a whole number and therefore rational; the others are irrational.

NWEA - Northwest Evaluation Association Practice Test