(-7)^7 x (-7)^3 as a power

7^10

When multiplying exponents keep the number the same and add the power

FOr example in 9^3 x 9^7 we keep 9 the same whilst adding the exponents

9^10 would be the answer for the example problem

Step-by-step explanation:

the answer is 31.27mph

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: