The volume formula of a cylinder is given as:
V = π r^2 h
So plugging in the value of the volume:
10 ft^3 = π r^2 h
<span>h = 10 / (π r^2) --->
eqtn 1</span>
The formula for the surface area of cylinder is:
s = 2 π r h + 2 π r^2
plugging in eqtn 1:
s = 2 π r [10 / (π r^2)] + 2 π r^2
<span>s = (20 / r) + 2 π r^2 (ANSWER)</span>
The expression has a value of 15 when you divide by 2.
The 2 graphs on the left are exponential
The other 2 are linear
Answer: 8
Step-by-step explanation:
Given
Lian has
and she has twice as many dimes as nickels
Suppose she has
nickels
So, the number of dimes is 
Nickel is equivalent to 5 cents and dime is equivalent to 10 cent

Therefore she has 8 dimes with her.