Question

murphy is building a home with four front windows, each in the form of a parallelogram. if each window has a five ft base and aheight of 2ft. how many sqaure ft of the 25ft *11ft wall will require stain.

the second part of the questio is if the stain used on the wall in exercise 47 is applied at a cost of 2.75 per sq yrd, find the cost of staining the front wall

Answer 1

Area of a parallelogram is base times height.
So each parallelogram has an area of 5 * 2 = 10ft^2.
There are 4 windows so if each one takes up 10 ft^2 then those 4 windows would take up 40ft^2.

The wall is 25 * 11 which is 275 ft^2. So if you take away the window space 40 Ft^2, you are left with 235 ft^2 of wall to stain.

Answer 2

There are 9 ft^2 in 1 yd^2

so if you have 235 ft^2 then you have 235/9 yd^2
26yd^2 with 1ft^2 left over.

2.75 * 26 = $71.50
you have 1 ft^2 left over so you will have to buy one more can of stain at 2.75.

$71.50 + $2.75 = $74.25

Answer 3

thanks

Answer 4

if concrete weighs 160lbs per cubic ft, what is the weight of a concrete circular slab 4in thick and 15 ft across

Answer 5

x^8/x^2