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2 years ago

9

Can someone help me with this bonus question? It is due tomorrow!

1 answer:

Norma-Jean [14]2 years ago

4 0

Answer:

hope this helps.

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HELP BY FIVE MINUTES PLEASE

kati45 [8]

Those are adjacent angles. They equal 180 degrees.

10x-20+6x+8= 180

16x-12=180

Add 12.

16x= 192

x=12

I hope this helps!
~kaikers

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2 years ago

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artcher [175]

Answer: option 3

is correct

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3 years ago

Solve the equation |t+8|=5

vodka [1.7K]

We have t+8=5 or t+8=-5

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3 years ago

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Maurinko [17]

Anything multiplied by zero is zero

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2 years ago

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Use identities to find the values of the sine and cosine functions for the following angle measure.

puteri [66]

Using the cosine double angle formula,

$\cos 2\theta=2\cos^2 \theta-1=\frac{12}{13}\\\\2\cos^{2} \theta=\frac{25}{13}\\\\\cos^{2} \theta=\frac{25}{26}\\\\\boxed{\cos \theta=\frac{5}{\sqrt{26}}}$

(Note I took the positive case since $\theta$ terminates in the first quadrant)

Using the Pythagorean identity,

$\sin^2 \theta+\cos^2 \theta=1\\\\\sin^2 \theta+\frac{25}{26}=1\\\\sin^2 \theta=\frac{1}{26}\\\\\boxed{\sin \theta=\frac{1}{\sqrt{26}}}$

(Note I took the positive case since $\theta$ terminates in the first quadrant)

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8 months ago