Answer:
The total yards gained was 13 yards.
Step-by-step explanation:
If you do 8-15+20=13
<u><em>PLEASE MARK BRAINLIEST</em></u>
Answer:
I thinks no for all except the last one.
Using the Pythagorean theorem we get:

Simplifying the above result we get:

Subtracting 64 from the above equation we get:

Therefore:

Answer:
f'(x) = - 6
hence f'(1) = - 6
f'(x) = - 6 for all real values of a