I am lead to believe th =e answer would be 10,000 :)
9 - 2(7 - 8)
9 - 2(-1)
9 - (-2)
11
Angle A would be 10 degrees.
Complementary angles add to 90 degrees.
So 90-80=10
Negative exponents mean that the base is on the wrong side of the fraction line. For example, x^-2 is the same as 1/x^2. In this example, 1/2^-2 would be 2.
2/1^2 = 2