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telo118 [61]
3 years ago
11

A teacher uses a strong slingshot to release an object from the top of a school high in the air. The function a(t)=-16t^2+128t+5

0 gives the approximate altitude, in feet, of the object t seconds after it is released. How long will it be before the object hits the ground? Round to the nearest second.​
Mathematics
1 answer:
inessss [21]3 years ago
8 0

Ground: y = 0

- 16t² + 128t + 50 = 0

Apply quadratic equation.

t = 0, 8 (rounded to the nearest second)

8 seconds

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