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3 years ago

10

Please help me. Its geometry in mathematics.

1 answer:

I am Lyosha [343]3 years ago

3 0

Answer:

(b-10) +(b+10)=180

2b=180

b=90

c=b-10=80

d=b+10=100

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50-10x=20 what is the value of x in this problem

Andrew [12]

So what I did was I wrote down the problem 50 - 10x = 20.

The first step I did was take 50 and subtract it from both sides: 50 - 10x = 20
-50 -50
After that i cross out the so 50's and take 20 and subtract it to 50 which gave me -30. So when you write this down you rewrite it as: -10x = -30

Last step: take the -10 and divide it by both sides the cross out the two -10's cause it's going to be written as -30/-10 which would give you x = 3. So there is your answer, hope this helps. :)

~Shadow

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BARSIC [14]

Answer:

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3 years ago

love history [14]

Hello :
<span>4x-5y=13...(1)
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Find the volume of the following solid. The solid between the cylinder f(x,y)equals=e Superscript negative xe−x and the region

PilotLPTM [1.2K]

It is hard to comprehend your question. As far as I understand:

f(x,y) = e^(-x)

Find the volume over region R = {(x,y): 0<=x<=ln(6), -6<=y <= 6}.

That is all I understood. It would be easier to understand with a picture or some kind of visual aid.

Anyways, to find the volume between the surface and your rectangular region R, we must evaluate a double integral of f on the region R.

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Now evaluate,

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Now integrate this w.r.t. y:

$\int_{-6}^{6}\frac{5}{6}dy = 10$

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$\iint_{R}^{ } e^{-x}dA=\int_{-6}^{6} \int_{0}^{ln(6)} e^{-x}dx dy = 10$

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3 years ago

In 2006, the population of the country was 30.4 million. This represented an increase in population of 7.6 % since 2001. What w

Molodets [167]

Answer:

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3 years ago