Select the correct answer. Suppose the area of a circle increases at a constant rate such that, at a given point in time, the rate of change of area of the circle is equal in
magnitude to the rate of change of the circumference. Find the radius at that instant.
A. r=1 unit
B. r= pi unit
C. r= 2pi unit
D. r= pi/2 unit

answer: she must produce at least 9,000 windows in order to make a profit of $48,000

explanation:

48,000 - 12,000 = 36,000

36,000/4 = 9,000

35-60 students are taking math.

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm