Solve |x + 4| = | 2x + 9|

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

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

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.