Solve the problem.
A ball is kicked upward with an initial velocity of 68 feet per second. The ball's height, h (in feet), from the ground is modeled by h=-16t^2+68t, where t is measured in seconds. What is the practical domain in this situation?
The Answer Choices are in the screen shot.

Solve the problem A ball is kicked upward with an initial velocity of 68 feet per second The balls height h in feet from the ground is modeled by h16t268t where class=

Respuesta :

the domain for this type of problem is all real numbers so the answer would be C

Answer:

A. 0 ≤ t≤ 4.25

Step-by-step explanation:

Now, for practical situation, it is clear that value of height can not be a negative number. So, if we use elimination method, B can not be an answer because in real numbers there are also negative numbers.

For D, if you put 17, it will make the resultant height negative, so it is eliminated as well.

Now, for C, you can note that even numbers larger than 2.125 can produce the valid results, so it is eliminated as well.

Now, for A, if we put 4.25, it will produce 0, and values bigger than 4.25 will produce negative results, so A is the valid answer here.