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Stella [2.4K]
3 years ago
14

If an object dropped from the height of 144 ft the function h(t)=-16t^2+144 gives the height of the object after t seconds. When

will the object hit the ground?
Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0
3 seconds
0= -16t^2+144
-144/-16=9
9=t^2
Sq rt of 9 is 3
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hannah and mallory are selling boxes of cookies for a school fundraiser. each box costs the same amount. hannah sells 14 boxes.
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The cost per box of cookies is $3.75

The total amount Hannah raised from the sales of cookies is $52.50

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In order to determine the cost per box of cookies, take the following steps:

The first step is to determine the total sum of the boxes sold by Hannah and Mallory

Sum of the boxes sold = 14 + 22 = 36 boxes

36 boxes were sold by Hannah and Mallory

The second step is to determine the total cost of the 36 boxes sold.

Total cost of 36 boxes = total amount raised - donation

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The third step is to determine the total cost of each box

cost of one box = total cost of 36 boxes / total number of boxes

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The total amount Hannah raised = cost per box x number of boxes she sold

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The total amount Mallory raised = amount raised from the sale of cookies + donation

amount raised from sales = cost per box x number of boxes she sold

22 x $3.75 = $82.50

Total amount = $82.50 + $6 = $88.50

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