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Collect like terms

Add sides 4


Divide sides by 7


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Thus ;




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Answer:
A
Step-by-step explanation:
Answer:
254.34 cm^2
Step-by-step explanation:
Volume of cylinder = 
We know that the diameter is 6, which means that the radius is 3 cm.
Now, it also tell us that that the height is triple the radius, this means that we multiply it by 3. Therefore, the height is 9 cm.
Now we know r = 3 cm and h = 9 cm, pi is assumed to 3.14 as well.
Substituting into the formula we will end up with 254.34 cm^2.
1: a) -51
b) -461
2: a) 18078.415936
b) <span>61715.95</span>