3 years ago

HELP PLSSS THIS IS HARD SOMEONE

Mathematics

1 answer:

Simora [160]3 years ago

8 0

Answer:

270 degrees counter-clockwise

Step-by-step explanation:

90 degree clockwise or 270 degree counter-clockwise

(x,y)----->'(y,-x)

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Step-by-step explanation:

Recall that the sine and cosine are completed functions.

This means that: $\sin(x)=\cos(90-x)$

$\sin(20\degree)=\cos(90-20)$

$\sin(20\degree)=\cos(70\degree)$

Recall that: sine ratio is opposite/hypotenuse

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$|PQ|=15\sin 58$

$|PQ|=15(0.848)$

$|PQ|=12.72$

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