You toss a pebble into a pool of water and watch the circular ripples radiate outward. you find that the function r(t)=12.5 describes the radius of the first circle r in inches after t seconds. the function a (r)=πr^2 describes the area a of the circle. find a (r(t)) when t=2. then interpret your answer. find the area of the circle after 4 s.

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

c.

step-by-step explanation:

(x) - (y) = (1 + 4i)

answer is  

a.

p = 78

step-by-step explanation: