Y= x²
dy/dx = 2x
dy/dx| x=3 : 2(3) = 6
=6
(-1,-2) = (-5,2), (-1,0)=(-5,4) , (3,-3) =(-1,1) this might be wrong
now, recall, the exercise is assuming you're using π = 3.14.
Answer:
T=5.9235 seconds
Step-by-step explanation:
The time it takes for the cannonball to strike the ground is the point at which H(T)=0
This is a quadratic equation and since we have a bunch of decimals we use the quadratic formula:
a=-4,9, b=27.52, c=8.9
It takes 5.9235 seconds for the cannonball to strike the ground.