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I am Lyosha [343]
3 years ago
13

What the correct answer

Mathematics
1 answer:
Nataliya [291]3 years ago
8 0
  • Answer:

381.51 ft³

  • Step-by-step explanation:

V(sphere) = \frac{4}{3}\pi*r^{3}

V = \frac{4}{3}*3.14*(4.5ft)^{3}

=4*3.14*91.125ft³/3

= 1144.53ft³/3

= 381.51 ft³

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Find the center of a circle with the equation: x2 y2−32x−60y 1122=0 x 2 y 2 − 32 x − 60 y 1122 = 0
mixas84 [53]

The equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

The center of the circle exists at (16, 30).

<h3>What is the equation of a circle?</h3>

Let, the equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

We rewrite the equation and set them equal :

$(x-h)^2 + (y-k)^2 - r^2 = x^2+y^2- 32x - 60y +1122=0

$x^2 - 2hx + h^2 + y^2 - 2ky + k^2 - r^2 = x^2 + y^2 - 32x - 60y +1122 = 0

We solve for each coefficient meaning if the term on the LHS contains an x then its coefficient exists exactly as the one on the RHS containing the x or y.

-2hx = -32x

h = -32/-2

⇒ h = 16.

-2ky = -60y

k = -60/-2

⇒ k = 30.

The center of the circle exists at (16, 30).

To learn more about center of the circle refer to:

brainly.com/question/10633821

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2 years ago
Please help!!!
Andru [333]

Answer:

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Step-by-step explanation:

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