23. Which equation represents the circle whose center
is (-5,3) and that passes through the point (-1,3)?
A) (x + 1)2 + (y - 3)2 = 16
B) (x - 1)2 + (y + 3)2 = 16
C) (x + 5)2 + (y - 3)2 = 16
D) (x – 5)2 + (y + 3)2 = 16

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?