You want to paint the ceiling of your bedroom. The area is 140 ft. The ceiling has two square skylights. Each skylight has a side length of 15/8 feet. How
many square feet will you paint?

132 ft²

Step-by-step explanation:

First we shall work out the area of 1 skylight. one skylight is 15/8 feet so 15/8 x 15/8 = 3.515625 feet. x this by 2 as there is 2 skylights. So in total, there is 7.03125 feet^2 covered by the skylights. Take this from the original area 140ft - 7.03125 ft = 132.96875 ft^2 or as a mixed number 132 ft²

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it