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3 years ago

I also need the volumen of this figure please help me i dont know the answer.

Mathematics

2 answers:

baherus [9]3 years ago

6 0

1950.9 is the surface area.
4580.4 is the volume.

Ronch [10]3 years ago

4 0

I will assume that is half of a sphere although it looks squashed :P

The surface area of a sphere is 4pr^2 and we only have half of the sphere so we have:

2pr^2 for the hemisphere area....

The surface area of the cylinder is 2prh+2pr^2 however there is only one base so our cylinder area is: 2prh+pr^2

So our total surface area is:

A=2pr^2+pr^2+2prh

A=3pr^2+2prh, given that r=9 and h=12...

A=3p81+2p9(12)

A=459p ft^2

A≈1441.0 ft^2 (to nearest tenth of a square foot)

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Answer:

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Step-by-step explanation:

Given the expression $\frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }$ , the dfference is expressed as follows;

Step1: First we need to factorize the denominator of each function.

$\frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }\\= \frac{x}{x^{2}-5x+3x-15 } - \frac{4}{x^{2} + 7x-5x - 35 }\\= \frac{x}{x(x-5)+3(x-5) } - \frac{4}{x( x+ 7)x-5(x +7) }\\= \frac{x}{(x-5)(x+3) } - \frac{4}{(x-5)(x +7) }\\\\$

Step 2: We will find the LCM of the resulting expression

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3 years ago

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balandron [24]

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Step-by-step explanation:

The answer should be 8 if I did the math correctly, I am very sorry if it is wrong.

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