3 years ago

Someone help me with this ASAP!!!

Mathematics

2 answers:

Dafna1 [17]3 years ago

4 0

Answer:

33.09

Step-by-step explanation:

You just subtract 26.91 from 60

Keith_Richards [23]3 years ago

4 0

Answer:

33.06

Step-by-step explanation:

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2.83 s

Step-by-step explanation:

We are given that

$h(t)=-16t^2+10t+100$

When a rock reached the ground then h(t)=0

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Using quadratic formula

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

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$t=\frac{10-\sqrt{6500}}{32}=-2.2$

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Hence, the rock takes 2.83 sec to reach the ground.

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