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4vir4ik [10]
3 years ago
13

Given f(x) = -2x + 7, find f(-3). Show your steps.

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0
F(x)=-2x+7
f(-3)=-2(-3)+7
       =6+7
       =13
f(-3)=13
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Answer:

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Step-by-step explanation:

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Hyun Woo is riding a ferris wheel. H t H(t) models his height (in m m) above the ground, t t seconds after the ride starts. Here
worty [1.4K]

Answer:

<u></u>

  • <u>53 seconds.</u>

Explanation:

The text and the model are garbled.

This is the question amended:

<em />

<em>Hyun Woo is riding a ferris wheel. H(t) models his height (in m) above the ground, t seconds after the ride starts. Here, t is entered in radians.</em>

<em>H(t) = -10 cos(2π/150 t)+10</em>

<em />

<em>When does Hyun Woo first reach a height of 16 m?</em>

<em />

<h2>Solution</h2>

<em />

When <em>Hyun Woo reaches a height of 16 m</em> the <em>model </em>states:

  • <em>16 = -10 cos(2π/150 t)+10</em>

<em />

Then you must find the lowest positive value of t that is a solution of the equation.

Solve the equation:

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  • t = 52.86s ≈ 53 s ← answer
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g100num [7]
4x-5=31

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3 0
3 years ago
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