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Naddik [55]
3 years ago
8

X^2y^2-2x+8y+8=0 Identify the radius and the center.Then graph the circle

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
4 0

Answer:

Centre: (1,-4)

Radius: 3

Step-by-step explanation:

h = -2/-2 = 1

k = 8/-2 = -4

1² + (-4)² - 8 = r²

r² = 9

r = 3

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Determine the volume of the solid that lies between planes perpendicular to the x-axis at x=0 and x=4. The cross sections perpen
OverLord2011 [107]

Answer:

Volume = 16 unit^3

Step-by-step explanation:

Given:

- Solid lies between planes x = 0 and x = 4.

- The diagonals rum from curves y = sqrt(x)  to  y = -sqrt(x)

Find:

Determine the Volume bounded.

Solution:

- First we will find the projected area of the solid on the x = 0 plane.

                              A(x) = 0.5*(diagonal)^2

- Since the diagonal run from y = sqrt(x) to y = -sqrt(x). We have,

                              A(x) = 0.5*(sqrt(x) + sqrt(x) )^2

                              A(x) = 0.5*(4x) = 2x

- Using the Area we will integrate int the direction of x from 0 to 4 too get the volume of the solid:

                              V = integral(A(x)).dx

                              V = integral(2*x).dx

                               V = x^2

- Evaluate limits 0 < x < 4:

                               V= 16 - 0 = 16 unit^3

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3 years ago
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densk [106]
The depth is what makes this a three dimensional figure since there are three dimensions: length, width, and depth! All three of these dimensions are used to find the volume of a rectangular prism.
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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