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denis23 [38]
2 years ago
8

Find the lateral area of this cone.

Mathematics
2 answers:
solmaris [256]2 years ago
8 0

Answer:

Lateral is 180π

SURFACE AREA IS 340π

Step-by-step explanation:

tatyana61 [14]2 years ago
7 0

Given:

Radius of the base of the cone = 12 in.

The slant height of the cone = 15 in.

To find:

The lateral surface area of the given cone.

Solution:

The lateral surface area of the cone is:

LA=\pi rl

Where, r is the radius of the base of the cone and h is the slant height of the cone.

Putting r=12,h=15, we get

LA=\pi (12)(15)

LA=180\pi

The lateral surface area of the cone is 180π in ² and the missing value for the blank is 180.

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Find the reciprocal of the expression. 10b/2b + 8
Alexus [3.1K]
Comment
I think you need brackets to clarify what you mean. I think it should be written as 
10b/(2b + 8) 

If that is the case the reciprocal is

(2b + 8)/10b You just turn everything up side down. There are technical ways of doing this, but the easiest way is just to do what I just did. 

Put the numerator in  the denominator,
Put the denominator in the numerator.

You could simplify this a bit.
2b/10b + 8/10b
which reduces further.

1/5 + 4/5b 
Just to make sure you understand where that b is, I will do this in

Latex.\frac{2b + 8}{10b} =  \frac{2b}{10b} +  \frac{8}{10b} =  \frac{2}{10} + \frac{4}{5b} =  \frac{1}{5} +  \frac{4}{5b}

Alternate answer
If you do mean what your wrote then the reciprocal is 2b / 10b + 8 which is 1/5 + 8 = 8 + 0.2 = 8.2 

The 8 has nothing to do with the reciprocal under these conditions.

The answer
I have given you all the choices I can think of without going into decimals. If you have choices, please list them under the comments.
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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
Find the 20th term of the geometric sequence when A1=2 and r=2
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Helpppp ASAP<br> Drag Values To complete each equation
dimulka [17.4K]

Given:

Part A: \frac{\left(17^{3}\right)^{6} \cdot 17^{-10}}{17^{8}}

Part B: \left(17^{6}\right)^{3} \cdot 17^{-9}

To find:

The value of each expression.

Solution:

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Using exponent rule: (a^m)^n=a^{mn}

$\frac{\left(17^{3}\right)^{6} \cdot 17^{-10}}{17^{8}}=\frac{\left(17\right)^{3\times   6} \cdot 17^{-10}}{17^{8}}

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Using exponent rule: a^m \cdot a^{n}= a^{m+n}

                      $=\frac{(17)^{18+(-10)}}{17^{8}}

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Cancel the common factor, we get

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Using exponent rule: (a^m)^n=a^{mn}

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Using exponent rule: a^m \cdot a^{n}= a^{m+n}

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                   =17^9

\left(17^{6}\right)^{3} \cdot 17^{-9}=17^9

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2 years ago
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