Answer:
C
Step-by-step explanation:
given
h(t) = - 16t² + 40t
To find the zeros equate h(t) to zero, that is
- 16t² + 40t = 0 ← factor out - 4t from each term
- 4t(4t - 10) = 0
Equate each factor to zero and solve for t
- 4t = 0 ⇒ t = 0
4t - 10 = 0 ⇒ 4t = 10 ⇒ t = [tex]\frac{10}{4}[/tex] = 2.5
The domain of h(t) is all real numbers between 0 and 2.5
