Answer:

Step-by-step explanation:
observe by inverse definition of a function

B.
X=5
7(5+9)=7•x+7•9
(7•5)+(7•9)=7x+63
35+63=7x+63
Subtract 63 from both sides and you will be left with
35=7x
Divide each side by 7 (you pretty much just divide 35 by 7)
And x=5
Answer is 36
Divide 6 by 1.7 and multiply the answer by 10.2
Answer:
Between 6 and 7
Step-by-step explanation:
6² = 36
7² = 49
37 is greater than 36 and less than 49 so
the square root of 37 is in between 6 and 7