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aleksandrvk [35]
3 years ago
15

Simplify when it is possible 10 x^2 - y + x^2

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
5 0
Combine like terms
11x^2 - y
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C= -18
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8 0
2 years ago
Evaluate the integral Find the volume of material remaining in a hemisphere of radius 2 after a cylindrical hole ofradius 1 is d
algol13

You want to find the volume inside the hemisphere x^2+y^2+z^2=4 (i.e. inside the sphere but above the plane z=0) and outside the cylinder x^2+y^2=1. Call this region R.

In cylindrical coordinates, we have

\displaystyle\iiint_R\mathrm dV=\int_0^{2\pi}\int_1^2\int_0^{\sqrt{4-r^2}}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta

\displaystyle=2\pi\int_1^2 r\sqrt{4-r^2}\,\mathrm dr

\displaystyle=-\pi\int_3^0\sqrt u\,\mathrm du

(where u=4-r^2)

\displaystyle=\pi\int_0^3\sqrt u\,\mathrm du

=\dfrac{2\pi}3u^{3/2}\bigg|_0^3=2\sqrt3\,\pi

7 0
3 years ago
Jenna and Corey solved the equation, 4(x+4) = 2( 2x+5) +6, and came up with two different solutions.
iogann1982 [59]

Answer: C

Step-by-step explanation:

They both end up equaling 4x+16 so they cancel each other out

6 0
3 years ago
Which of these nonterminating decimals can be converted into a rational number?
ValentinkaMS [17]

A can be converted since it is a repeating decimal


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3 years ago
Find the equation of the line that contains the point (-4,-1) and is perpendicular to the line 4x+5y=15. Write the line in​ slop
AlexFokin [52]

Hope this was helpful

7 0
2 years ago
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