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nirvana33 [79]
2 years ago
9

Help, and can you show your work?

Mathematics
2 answers:
Schach [20]2 years ago
6 0

Step-by-step explanation:

answer A is correct

................

lubasha [3.4K]2 years ago
6 0

Answer:

c

Step-by-step explanation:

sin = \frac{opposite}{hypotenuse}

it wants us to find sin a

the opposite of a is 24 and the hypotenuse is 26

so sin A = 24/26

cos = \frac{adjacent}{hypotenuse}

it wants us to find cos a

the adjacent of a is 10 and the hypotenuse is 26

so cos A = 10/26

have a great day :D

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Answer:

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Step-by-step explanation:

Given

h(t) = -16t^2 + 30t

Required

Determine which of the options is true

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To solve this, we make use of maximum of a function

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In our case:

First we need to solve \frac{-b}{2a}

Then substitute \frac{-b}{2a} for t in h(t) = -16t^2 + 30t

By comparison:

b = 30

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\frac{-b}{2a} = \frac{-30}{2 * -16}

\frac{-b}{2a} = \frac{-30}{-32}

\frac{-b}{2a} = \frac{30}{32}

\frac{-b}{2a} = \frac{15}{16}

Substitute \frac{15}{16} for t in h(t) = -16t^2 + 30t

h(\frac{15}{16}) = -16(\frac{15}{16})^2 + 30(\frac{15}{16})

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h(\frac{15}{16}) = -(\frac{225}{16}) + \frac{450}{16}

h(\frac{15}{16}) = \frac{-225 + 450}{16}

h(\frac{15}{16}) = \frac{225}{16}

h(\frac{15}{16}) = 14.0625

This implies that the maximum height reached is 14.0625ft.

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