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Andreas93 [3]
3 years ago
10

The function above models the height, y, in feet of a stone t seconds after it is dropped from the edge of a vertical cliff. How

long will it take the stone to hit the ground? Round to the nearest hundredth of a second

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

<em>3.94 seconds </em>

Step-by-step explanation:

h = - 16t² + 248

If stone is dropped, then h = 0

- 16t² + 248 = 0

t² = \frac{248}{16}

t = ± \frac{2\sqrt{62} }{4}

t < 0 is a solution of equation, but not a solution of the task

t = \frac{2\sqrt{62} }{4} ≈ <em>3.94 seconds</em>

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Step-by-step explanation:

Let's solve your equation step-by-step.

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