Answer:
ZB = 54
Step-by-step explanation:
Complementary angles add to 90 degrees
ZA + ZB = 90
x-15 + x+3 = 90
Combine like terms
2x-12 =90
Add 12 to each side
2x-12+12 = 90+12
2x = 102
Divide by 2
2x/2 = 102/2
x = 51
We want to find the measure of ZB
ZB = x+3
ZB = 51+3
ZB = 54
Answer:
12
Step-by-step explanation:
9+3=12
hope it helps
btw I need one more brainliest to level up
Answer:
21..........
Step-by-step explanation:
Answer:
9.9
use the special triangle formula or use cosine to find BC
The last one will give the incorrect slope