Answer:
4
Step-by-step explanation:
use pythagoeron theorem
9^2-7^2=x^2
x^2=32
x=4
Answer:
I'm pretty sure A but let me know if I'm wrong
2 1/2 feet can be written as 2.5 feet.
Divide the total distance by the distance per second:
15.6 feet / 2.5 feet per second = 6.24 seconds.
The answer is 4 because the square root of 4 is -2, and that multiplied by 2 is -4