Answer:
Line 3
Step-by-step explanation:
→ Calculate gradient

Answer:
300 we just finished the test...
Step-by-step explanation:
Answer:
The correct answer is (edit: b).
Step-by-step explanation:

First you need the formula for SA of a cylinder: SA = 2(πr^2) + 2πr*h
(area of the top and bottom circles plus the side)
Then plug your values into the equation and rearrange to make h the subject:
1470.3 = 2π13^2 + 2π*13*h
26πh = 1470.3 - 338π
h = (1470.3 - 338π)/26π
=5.00042...
so h is approximately 5 units :)