If the equation of a circle is (x + 4)2 + (y - 6)2 = 25, its radius is

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Asked 7/26/2013 9:47:22 AM

Updated 7/3/2014 12:10:15 AM

8 Answers/Comments

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Flagged by yeswey [7/3/2014 12:07:44 AM]

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Question

Asked 7/26/2013 9:47:22 AM

Updated 7/3/2014 12:10:15 AM

8 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [7/3/2014 12:07:44 AM]

Rating

3

If the equation of a circle is (x + 4)^2 + (y - 6)^2 = 25, its radius is 5.

Added 7/2/2014 11:40:41 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/2/2014 11:48:41 PM]

3

The distance between A (-4, 2) and B(4, 2) is sqrt[(4+4)^2+(2-2)^2] = sqrt 64 = 8.

Added 7/2/2014 11:49:36 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/2/2014 11:58:16 PM]

3

The midpoint of A (-4, 2) and B(8, 5) is (2, 7/2)

Added 7/2/2014 11:50:11 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/2/2014 11:58:32 PM]

3

The equation of the line through point (-5, 0) and parallel to the y-axis is x = -5.

Added 7/2/2014 11:51:04 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/2/2014 11:58:47 PM]

3

The equation of circle having a diameter with endpoints (-2, 1) and (6, 7) is (x - 2)² + (y - 4)² = 25.

Added 7/2/2014 11:57:55 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/2/2014 11:58:55 PM]

3

A circle has all three types of symmetry. TRUE.

Added 7/3/2014 12:03:04 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/3/2014 12:43:18 AM]

3

A parallelogram has symmetry with respect to the point of intersection of its diagonals. FALSE.

Added 7/3/2014 12:07:20 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/3/2014 12:43:37 AM]

3

A trapezoid has symmetry with respect to the median of the trapezoid. FALSE.

Added 7/3/2014 12:10:15 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [7/3/2014 12:43:50 AM]

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