Three small circles of equal area have centers on line segment AB, as shown in the figure above. The
centers of the small circles are C, D, and E. The area
of the large circle with center D is 900π square
units. What is the circumference of the circle with
center C, assuming the circles just touch, but do not
overlap?

im alright what do you need

step-by-step explanation:

add an image

step-by-step explanation:

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1