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Natalija [7]
3 years ago
10

PLEASE YOU CAN ANSWER NUMBER 1 OR 2 OR BOTH PLEASE I JUST NEED HELP WITH BOTH AND NO ONE WILL ANSWER MY QUESTIONS!!!!!!!! :(

Mathematics
2 answers:
Anettt [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Given that a rocket path is given by

h(x) = -4x^2 + 16x

When it hits the ground h(x) =0

Hence we get

-4x^2 + 16x=0\\x=0, 4

i.e. after 4 minutes the rocket hits the ground

2) Given that

s(t) = -16t^2 + 48t + 280.

We have to find time t when height >280

s(t) = -16t^2 + 48t + 280>280\\\\t=0, 3

Between 0 and 3 seconds the object would be above the building.

Sergeeva-Olga [200]3 years ago
5 0

1.) You plug a number into the variable x. Then you will solve the equation for h(x) to find the time it takes for the rocket to travel the path given.


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