Use pythagorians theorem a^2 + b^2 = c^2. 4^+20^ = 20.40 feet. The ladder is 20.40 feet long.
Answer:
A
Step-by-step explanation:
Writing this statement symbolically, we get:
n
--- - 5 = 8
2
Adding 5 to both sides, we get n/2 = 13. Then n = 26.
The domain are x's and the range are y's.
x's are 3,5,9,2,-4
y's are 1,-1,7
So it's D.