Answer:
D
Step-by-step explanation:
It matches the most
Answer:
X = 14.48528137
Step-by-step explanation:
- ADD 72 TO BOTH SIDES
- SQUARE ROOT 72
- ADD 6
- X = 14.48528137
Use pythagorians theorem a^2 + b^2 = c^2. 4^+20^ = 20.40 feet. The ladder is 20.40 feet long.
Cross multiply
10(x-3) = 9x
10x - 30 = 9x
-1x = -30
X = 30