Question

Question 13 Indicate the answer choice that best completes the statement or answers the question. ALGEBRA If ZC and ZD are supplementary, and the measure of ZD is 45°, what is the measure of ZC? O a. 450 O b. 90° Oc. 1350 Od. 180°

Answer 1

x = 17 (option B)

Step-by-step explanation:

The diagram shows a right angle.

The sum of angles in a right angle is 90 degrees

4x° + 22° = 90°

4x + 22 = 90

collect like terms by subtracting 22 froom both sides:

4x + 22 - 22 = 90 -22

4x + 0 = 68

4x = 68

divide both sides by 4:

4x/4 = 68/4

x = 17 (option B)