Apartment "A" has two floors 30 feet wide and 40 feet long and a 15-foot-long by 30-foot-wide third floor. Apartment "B" has two floors that are both 40 feet long and 40 feet wide. The cost of both is $55 per square foot. What is the difference in total cost between Apartment "A" and Apartment "B"?

$19,250 is the difference in total cost between Apartment "A" and Apartment "B".

Step-by-step explanation:

Apartment A

Length of first floor = l = 40 ft

Width of the first floor = w = 30 ft

Area of first floors = A = lw =

Area of first floors = Area of second floor =

Length of third floor = l' = 15 ft

Width of the third floor = w' = 30 ft

Area of third floors = A' = l'w' =

Total area of the floor of apartment A = T

T = A +A +A' =

The cost of floor =  $55 per square foot

Total Cost of apartment A :

C =

Apartment B

Length of first floor = L = 40 ft

Width of the first floor = W = 40 ft

Area of first floors = a = LW =

Area of first floors = Area of second floor =

Total area of the floor of apartment B = T'

T' = a + a =

The cost of floor =  $55 per square foot

Total Cost of apartment B :

C' =

The difference in total cost between Apartment "A" and Apartment "B"L:

C' - C = $176,000 - $156,750 = $19,250

$19,250 is the difference in total cost between Apartment "A" and Apartment "B".

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,