3 years ago

-10a×4b+20a^2b+4ab-6ab

Mathematics

1 answer:

Vinvika [58]3 years ago

8 0

Step-by-step explanation:

-10a×4b+20a^2b-2ab

-40ab+20a^2b-2ab

-42ab+20a^2b Answer

I'm not sure...

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Step-by-step explanation:

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The trig ratio that relates the adjacent leg to the hypotenuse is the cosine.

$\cos A = \dfrac{adj}{hyp}$

$\cos A = \dfrac{3}{8}$

$\cos A = 0.375$

We know the cosine of angle A equals 0.375. We take the inverse cosine of 0.375 to find the measure of the angle.

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