Answer:
x=5
Step-by-step explanation:
Given equation is

Apply formula: 


Since both sides have equal bases so we can drop the log




Which gives x=0 and x-5=0
or x=0 and x=5
Original problem
is not defined at x=0 henc only x=5 is the final answer.
Answer:
h = 4
Step-by-step explanation:
The volume of a cylinder is 
V = 48π
AB = 12π
So since the area of the base is 12π, you can find the height by simply dividing 48π by it.
48π ÷ 12π = 4