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topjm [15]
3 years ago
10

Your new phew is standing on his deck which is 4 feet off the ground. He tosses his toy up into the air. The equation h(t) = -2t

^2 + 7t +4 models the toys height, h, from the ground at t seconds after he threw it. How high is the toy after 1 second
Mathematics
1 answer:
Tpy6a [65]3 years ago
3 0

Answer:

The height of the toy is 9 feet after 1 second

Step-by-step explanation:

we have

h(t)=-2t^2+7t+4

where

h(t) is the toys height from the ground

t is the time in seconds

so

For t=1 sec

substitute the value of t in the quadratic equation and solve for h(t)

h(1)=-2(1)^2+7(1)+4

h(1)=9\ ft

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