The function y=−16x2+v0x models the height of a football in feet x seconds after a player kicks it. In the equation of the function, v0 is the ball's initial velocity in feet per second. The ball hits the ground 2 seconds after the player kicks it. What is the value of v0?

Step-by-step explanation:

Hello,

The equation is

The ball hits the ground 2 seconds after the player kicks it, it means that f(2)=0.

We need to find  such that f(2)=0.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: