Answer:
c=39
Step-by-step explanation:
4+2=6
To remove square root you have to square everything making the 6 a 36 and then add 3. At the end it is a 39.
Answer:
Option d) x = 25
Step-by-step explanation:
we have

Solve for x
Subtract 4 both sides


squared both sides


Adds 9 both sides



<u><em>Verify </em></u>
1) For x=25


----> is true
therefore
x=25 is a solution
2) For x=-7


The radicand cannot be a negative number
therefore
x=-7 is not a solution
The formula to find circumference is 2(3.14)r
For this problem, first you take half of the diameter to get radius. Then, putting this into the formula, you get 2(3.14)(6) = 37.699