Answer:
Step-by-step explanation:
Yes it is correct
circumference = 2*PI*r
2 * 3.14 * 9 = 56.52 yards
-1/4
- for a negative slope
rise over run
rises 1
runs 4
2^2 , or 4
since the exponents have the same base, we can subtract the exponent of the numerator by the exponent in the denominator.
So 2^-3 - 2^-5 = 2^(-3-(-5)) = 2^2
The new exponent is 2 because -3-(-5) is equal to 2.