If a football player passes a football from 4 feet off the ground with an initial velocity of 36 ft./s, how long will it take the football to hit the ground? use the equation h equals -16 t to the 2nd+6t +4

It will take 0.72s for the football to hits the ground.

Step-by-step explanation:

We have that the equaation for the height of the football is

The football will hit the ground when .

Multiplying by -1

To solve this equation, we need the bhaskara formula:

Given a second order polynomial expressed by the following equation:

.

This polynomial has roots such that , given by the following formulas:

In this problem, we have that:

So

It cannot take negative seconds for the ball to hit the ground.

So it will take 0.72s for the football to hits the ground.

how long did the flood last

step-by-step explanation:

then i will answer

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.