We are given the expression S = 2πr^2 + 2πrh and is asked to solve for h. This is the formula of the surface area of a cylinder. In this case,
S - 2πr^2 = 2πr h dividing the whole equation by 2πr, thenh = (S - 2πr^2) / 2πrh = S/2πr - r
Answer:
h=v/πr²
Step-by-step explanation:
v=πr²h
v/π=r²h
v/πr²=h
Answer:
<em>The single percentage change is 27.46%</em>
Step-by-step explanation:
<u>Percentage</u>
Suppose x is the initial number. It will be decreased by 7%.
(7/100)x=0.07x
x - 0.07x = 0.93x
This last number will be decreased by 22%.
0.93x*(22/100)=0.2046x
0.93x-0.2046x=0.7254x
The last number is 72.54% of the initial number. This is equivalent to a single decrease of:
100% - 72.54% = 27.46%
The single percentage change is 27.46%
I think that answer is D I am not 100% sure but sorry if I am wrong
Answer:
53/405
Step-by-step explanation: