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3 years ago

The curved surface area of a solid cylinder is 660 cm2. what is a curved surface area

Mathematics

1 answer:

boyakko [2]3 years ago

5 0

Answer:it’s ok if your not ok

Step-by-step explanation:

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What is the area of this figure? 4 cm 5cm 5cm Enter your answer in the box. cm?

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What’s the shape of it?
If it’s a rectangle 20
Bot something with more than 4 sides 100cm

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3 years ago

I NEED SOME ALGEBRA 2 HELP!

Degger [83]

The statement of the question tells us that 45% of the customers getting an oil change will have their car tires rotated. Therefore:
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3 years ago

Read 2 more answers

Find the volume of the solid formed by revolving the region bounded by LaTeX: y = \sqrt{x} y = x and the lines LaTeX: y = 1 y =

Strike441 [17]

Answer:

The volume is:

$\displaystyle\frac{37\pi}{10}$

Step-by-step explanation:

See the sketch of the region in the attached graph.

We set the integral using washer method:

$\displaystyle\int_a^b\pi r^2dx$

Notice here the radius of the washer is the difference of the given curves:

$x-\sqrt{x}$

So the integral becomes:

$\displaystyle\int_1^4\pi(x-\sqrt{x})^2dx$

We solve it:

Factor $\pi$ out and distribute the exponent (you can use FOIL):

$\displaystyle\pi\int_1^4x^2-2x\sqrt{x}+x\,dx$

Notice: $x\sqrt{x}=x\cdot x^{1/2}=x^{3/2}$

So the integral becomes:

$\displaystyle\pi\int_1^4x^2-2x^{3/2}+x\,dx$

Then using the basic rule to evaluate the integral:

$\displaystyle\pi\left[\frac{x^3}{3}-\frac{2x^{5/2}}{5/2}+\frac{x^2}{2}\right|_1^4$

Simplifying a bit:

$\displaystyle\pi\left[\frac{x^3}{3}-\frac{4x^{5/2}}{5}+\frac{x^2}{2}\right|_1^4$

Then plugging the limits of the integral:

$\displaystyle\pi\left[\frac{4^3}{3}-\frac{4(4)^{5/2}}{5}+\frac{4^2}{2}-\left(\frac{1}{3}-\frac{4}{5}+\frac{1}{2}\right)\right]$

Taking the root (rational exponents):

$\displaystyle\pi\left[\frac{4^3}{3}-\frac{4(2)^{5}}{5}+\frac{4^2}{2}-\left(\frac{1}{3}-\frac{4}{5}+\frac{1}{2}\right)\right]$

Then doing those arithmetic computations we get:

$\displaystyle\frac{37\pi}{10}$

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3 years ago

Are 3+4x and 4x+3 equivalent

Ket [755]

Answer:

yes

Step-by-step explanation:

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3 years ago

• The program was used times on the same computer in one week. • Of those times, a blue background appeared times and a red back

pentagon [3]

Answer:

can you explain this better

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2 years ago