Aril and Dita are wealthy Norwegian business owners who make monthly donations to international disaster
relief.
Aril donated 150 Norwegian kroners (kr the first month, and the cumulative number of Norwegian
kroners she has donated increases by a factor of 2.5 each month.
Dita donated 300 kr the first month, and the cumulative number of Norwegian kroners she has donated
increases by 400 kr each month.
They started making donations at the same time, and they both make their monthly donations at the beginning
of each month.
What is the first month in which Aril's cumulative donation exceeds Dita's cumulative donation?

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet