Answer:
the scale factor is 1/4 because the big one has four squares on the bottom so it's four times as big
-10 is the answer yuhhhhh

Simplify the expression by multiplying exponents

Simplify the expression by cancelling the terms

Depending on what type of triangle it is, for a right triangle you would use sin inverse=(opposite/hypotenuse), cos inverse=(adjacent/hypotenuse), or tan inverse=(opposite/adjacent). For any other triangle you would refer to the Law of sines where side a/sine of angle A=side b/sine of angle B and same goes for C