A circle has a radius of 9 units and a center located at (-5, 2) on a coordinate plane. Which of the following equations represent this circle?
А
(x - 5)2 + (x + 2)2 = 81
00
(x + 5)2 + ( - 2)2 = 81
С
(x - 5)2 + (x + 2)2 = 3
D
(x + 5)2 + (y - 2)2 = 3

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?