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3 years ago

I REALLY need help. I don't understand this at all and I need to pass. I suck at geometry.

Mathematics

2 answers:

Lisa [10]3 years ago

8 0

Answer: A=27 $\pi$

ser-zykov [4K]3 years ago

3 0

Either as aforementioned above, or use $\bf \textit{Area of a Ring}\\\\
A=\pi (R^2-r^2)\qquad 
\begin{cases}
R=\textit{longer radius}\\
r=\textit{shorter radius}
\end{cases}$

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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3 years ago

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1. Find the Least Common Multiple of these two monomials:<br> See picture

gtnhenbr [62]

Answer:

<em>The last choice is correct</em>

Step-by-step explanation:

<u>Least Common Multiple (LCM)</u>

To find the LCM we can follow this procedure:

List the prime factors of each monomial.

Multiply each factor the greatest number of times it occurs in either factor.

We have two monomials:

$12a^4b^2c^5$

$40a^3b^7c^1$

The prime factors of the first monomial are:

$2^2,3,a^4,b^2,c^5$

The prime factors of the second monomial are:

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LCM = Multiply $2^3*3*5*a^4*b^7*c^5$

These are all the factors the greatest number of times they occur.

Operating:

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$\boxed{LCM=120a^4b^7c^5}$

The last choice is correct

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4 years ago