Exact Surface Area = 378pi
Approximate Surface Area = 1186.92
The approximate surface area uses pi = 3.14
The units are cm^2 or "square cm".
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Work Shown:
SA = surface area of cylinder
SA = 2*pi*r^2 + 2*pi*r*h
SA = 2*pi*7^2 + 2*pi*7*20
SA = 2*pi*49 + 2*pi*140
SA = 2*49*pi + 2*140*pi
SA = 98pi + 280pi
SA = 378pi ..... exact surface area
SA = 378*3.14
SA = 1186.92 ..... approximate surface area
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Side note: The diameter 14 cuts in half to get the radius r = 7
Answer:
17.5
Step-by-step explanation:
You have to find n right?
9+4n-79 = 0
-> 4n = 70
-> n = 17.5
Answer:
I think is is 5.4
Step-by-step explanation:
what I did is divided the problem
Answer:
C
Step-by-step explanation:
Here are the options to this question :
A) 5 to 3
B) 7 to 5
C) 8 to 4
D) 8 to 5
The proportion of lemons in the lemonade is 7 while the proportion of water in the lemonade is 4.
In order to make the lemonade stronger, the proportion of lemon in the mixture should be increased or the proportion of water in the mixture should be reduced.
Looking at the options, option C is correct. The proportion of lemon is increased
