2nd, 4th, and 5th answers are correct
Answer:
Trampolinist will land on the trampoline after 0.9 seconds.
Step-by-step explanation:
The function h(t) = -16t² + 15 represents the relation between height 'h' above the ground and the time 't' of the trampolinist.
We have to find the time when trampolinist lands on the ground.
That means we have to find the value of 't' when h(t) = 15 - 13 = 2
[Since trampoline is 2 feet above the ground]
When we plug in the value h(t) = 2
2 = -16t² + 15
2 + 16t² = -16t² + 16t² + 15
16t² + 2 = 15
16t² + 2 - 2 = 15 - 2
16t² = 13
![\frac{16t^{2}}{16}=\frac{13}{16}](https://tex.z-dn.net/?f=%5Cfrac%7B16t%5E%7B2%7D%7D%7B16%7D%3D%5Cfrac%7B13%7D%7B16%7D)
![t^{2}=\frac{13}{16}](https://tex.z-dn.net/?f=t%5E%7B2%7D%3D%5Cfrac%7B13%7D%7B16%7D)
t = ![\sqrt{\frac{13}{16}}](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B13%7D%7B16%7D%7D)
t ≈ 0.9 seconds
Therefore, trampolinist will land on the trampoline at 0.9 seconds.
Fifty two thousand fifty two is equal to 52,052.
A set of ordered pairs is called a relation. The set of all first components of the ordered pairs of a relation is the domain of the relation, and the set of all second components of the ordered pairs is the range of the relation. :)