2 years ago

HELP I AM CONFUSION WHATS THE ANSWERRR

Mathematics

1 answer:

KATRIN_1 [288]2 years ago

8 0

The function is multiply by 3 then add 2

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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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1 year ago

Which expression is a factor of 16x^2-81

krek1111 [17]

Answer:

Step-by-step explanation:

Reasoning: the square root of 16 is 4 and 81 square root is 9

so it is b pls give brainliest! have a good day

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2 years ago

Help picture below problem 6

docker41 [41]

Answer:

g is 37

Step-by-step explanation:

supplementary means two angles that add up to 180°

180-143=37

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2 years ago

5/9 , 4/15 ,dan 3/5

vichka [17]

4/15, 5/9 and 3/5.

Hope this helps! :)

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3 years ago

Using side lengths only could the triangles be similar?

Verdich [7]

Answer:

Step-by-step explanation:

There is no consistent scale factor.

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3 years ago

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