Q: Find an equation of the circle that has center (1, -2) and passes through (5,-6).

A: The equation of the circle that has center (1, -2) and passes through (5, -6) is (x - 1)^2 + (y + 2)^2 = 32.

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Asked 2/7/2012 10:23:05 PM

Updated 7/17/2014 12:17:30 AM

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The equation of the circle that has center (1, -2) and passes through (5, -6) is (x - 1)^2 + (y + 2)^2 = 32.

Added 7/17/2014 12:17:30 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/17/2014 12:39:21 AM]

Find an equation of the circle that has center (-4,3) and passes through (4,4) .

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Updated 7/17/2014 12:20:26 AM

1 Answer/Comment

The equation of the circle that has center (-4,3) and passes through (4,4) is (x + 4)^2 + (y - 3)^2 = 65.

Added 7/17/2014 12:20:26 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/17/2014 12:39:44 AM]

: A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total $18,441. The variable costs will be $12.75 per book. The publisher will sell the finished product to bookstores at a price of $19.50 per book. How many books must the publisher produce and sell so that the production costs will equal the money from sales?

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Updated 2/7/2014 7:06:00 AM

1 Answer/Comment

samn

M

2732 books must be produced and sold so that the production costs will equal the money from sales.

Added 2/7/2014 7:06:00 AM

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Find an equation of the circle that has center (-5,4) and passes through (2,-3).

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Updated 7/17/2014 12:14:58 AM

1 Answer/Comment

The equation of the circle that has center (-5,4) and passes through (2,-3) is (x + 5)^2 + (y - 4)^2 = 98.

Added 7/17/2014 12:14:58 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/17/2014 12:39:19 AM]

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