Answer:
Step-by-step explanation:
Using the formula for the surface area of a cylinder
As we know that r=3, h=5, and 
=3.14 we can substitute in these values into the equation and then solve it
The square roots for all of the answers would be rooted 2 squared time whatever number you picked for the first part
Step-by-step explanation:
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An = -4 + (n - 1)(7)
This being in the form of the explicit rule for an arithmetic sequence you can pick out the d and a1.
an = a1 + (n - 1)(d)
d = 7
a1 = -4
