Two angles are complementary. one angle has a measure of 40 and the other has a measure of (8x + 2) what is the value of x

A. 50

B. 11

C. 60

D. 6

Since two angles are complementary, their measures add up to 90 degrees.

Let's set up an equation to solve for x:

40 + (8x + 2) = 90

Combine like terms:

8x + 42 = 90

Subtract 42 from both sides:

8x = 48

Divide both sides by 8:

x = 6

Therefore, the value of x is 6.

The answer is D. 6.