AFQT Mathematics Knowledge 1

Question 1

Simplify the expression: 5x+7x.

Accepted Answer

12x

Answer

12
𝑥
2

Answer

2x

Answer

35x

Question 2

What is the area of a rectangle with a length of 8 meters and a width of 5 meters?

Accepted Answer

40 square meters

Answer

13 square meters

Answer

20 square meters

Answer

80 square meters

Question 3

Solve for x: 3x−7=11.

Accepted Answer

x=6

Answer

x=2

Answer

x=4

Answer

x=8

Question 4

If 𝑎2=64, what is 𝑎?

Accepted Answer

Both -8 & 8

Answer

4

Answer

-8

Answer

8

Question 5

A triangle has a base of 10 cm and a height of 12 cm. What is its area?

Accepted Answer

60 square cm

Answer

70 square cm

Answer

100 square cm

Answer

120 square cm