Which of the following is the equation of a circle with center (-5, 2) and radius of 6
Question
Updated 7/22/2014 1:16:49 AM
Flagged by yeswey [7/22/2014 1:15:57 AM]
Original conversation
User: Which of the following is the equation of a circle with center (-5, 2) and radius of 6

User: AB = 4x - 2 and CD = 2x + 10. Find the value of CD.

User: AB and CD are equal to each other AB = 4x - 2 and CD = 2x + 10. Find the value of CD.

Question
Updated 7/22/2014 1:16:49 AM
Flagged by yeswey [7/22/2014 1:15:57 AM]
Rating
3
AB = 4x - 2 and CD = 2x + 10
AB = CD, so
4x - 2 = 2x + 10
4x - 2x = 10 + 2
2x = 12
x = 12/2 = 6
CD = 2(6) + 10 = 12 + 10 = 22
Confirmed by andrewpallarca [7/22/2014 2:21:35 AM]

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