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astraxan [27]
4 years ago
11

Please help here!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
fomenos4 years ago
7 0
The equation represents height above the ground. we want to know time it takes to hit the ground, so make the equation (height) equal to zero and solve for t.


0 =  - 16{t}^{2}   + 120 \\  \\  - 120 =  - 16 {t}^{2}   \\  \\ 7.5 =   {t}^{2}   \\  \\ t = 2.7 \: seconds
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Answer:

Step-by-step explanation:

Total amount of time that Joe has before going to soccer practice is 45 minutes. He spent 20 minutes eating a snack. This means that amount of time left after eating the snack is total amount of time that he has - the amount of time he spent on eating the snack. This becomes

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Answer:

New value =

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Step-by-step explanation:

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Step-by-step explanation:

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