2 years ago

Point Q was rotated about the origin (0,0) by -165

Mathematics

1 answer:

Step2247 [10]2 years ago

7 0

Answer:D

Did it on khan academy

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oksian1 [2.3K]

Answer:

$t= 6\ s$

Step-by-step explanation:

We know that the equation that models the height of the ball as a function of time is $h(t) = -16t ^ 2 + 80t + 96$ .

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So to know how long it will take the ball to reach the ground, equal h (t) to zero and solve for t.

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For an equation of the form:

$at^2 +bt +c$

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In this case

$a =-16\\b = 80\\c =96$

Then

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Point Q was rotated about the origin (0,0) by -165​

Point Q was rotated about the origin (0,0) by -165