Using the following equation, find the center and radius of the circle. you must show all work and calculations to receive credit. x2 - 4x + y2 + 8y = -4

The equation of the circle:

where:
(a; b) - coordinates of the center
r - a radius

Use:

We have:



The center: (-2; 4)
The radius: r = 4

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !