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Feliz [49]
3 years ago
7

Please help right away

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0

Answer:

443 jelly boys

Step-by-step explanation:

the raius is 3.5, then square it is 12.25, multiplied by pie,  12.25*3.14159=38.4844775, then times 11.5 is 442.57149125‬, aproximately 443.

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the radius of a circular pond is 8 meters. Find it's area and circumference. Use 3.14 as an approximation for pi​
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Zina [86]

Question:

If cos(θ) =-8/17 and sin(θ) is negative, then sin(θ) = ___  and tan(θ) =___.

Answer:

Sin\theta = \frac{-15}{17}

Tan\theta = \frac{15}{8}

Step-by-step explanation:

Given

cos(θ) =-8/17

Required

sin(θ) = __

tan(θ) =__

The first step is to determine the length of the third side

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cos(\theta) = \frac{Adj}{Hyp}

Where Adj and Hyp represent Adjacent and Hypotenuse

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From trigonometry

Sin\theta = \frac{Opp}{Hyp}

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Also from trigonometry

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Tan\theta = \frac{-15}{17} / \frac{-8}{17}

Tan\theta = \frac{-15}{17} * \frac{-17}{8}

Tan\theta = \frac{-15 * -17}{17  * 8}

Tan\theta = \frac{15 * 17}{17  * 8}

Tan\theta = \frac{15}{8}

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3 years ago
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