Answer:
A
Step-by-step explanation:
because 1/9^2 is also 9^-2 because when it is a negative exponent it turns into a fraction. it does this because it is negative and the negative is equal to the number of one with the exponent positive
Answer:
1. No.
2. Yes, there is no solution here.
Step-by-step explanation:
The former:
is our set of solutions.
The latter:
In other words, there is not any solution from the set of real numbers that suits us.
55.46 so estimating it would just leave it at 55
Answer: A.90 cm^2
Step-by-step explanation: A= a+b/2 h
A= 17.5+12.5/2 *6
A = 30/2*6
A= 15*6
A=90
