Question

Helppp! I have no idea what to do
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Answer 1

Explanation:

SOHCAHTOA

Cosine = Adjacent / Hypotenuse (Hypotenuse is the side opposite from the right angle)

The Hypotenuse is BT which has a measure of 25

Legs are the two sides that are not the Hypotenuse.

The adjacent leg to Angle B is SB which has a measure of 20.

Plug the measures in to get SinB = 20/25