Answer:
The initial velocity of the runner was 4 m/s, and the runner stopped after 8 seconds.
Step-by-step explanation:

Substitute the values of A = 3 and B = -4 to the expression:
Use the Pythagorean Theorem
a^2 + b^2 = c^2
a and b are the legs, and c is the hypotenuse
You have 10 and 13 for the legs so
10^2 + 13^2 = c^2
Simplify
100 + 169 = c^2
269 = c^2
c is about 16
B hope this helped have a nice day! =D
Oh yes 4x5 is another answer so yep god I forgot that sorry!
Answer:
x= -12
Step-by-step explanation:
-22+10 = -12
you have to do the opposite operation