The whole wall area including the window is 150 ft squared (15 ft x 10 ft). The window is 50 square feet (5 x 10). Take the whole area and subtract the window area and you have 100 sq ft thats paintable. One can is 50 sq ft so 100/50 is 2 cans of paint needed. Your answer is H.
Difference of 2 perfec squares is
(a^2)-(b^2)
if the exponents are both even and the coeficient (the number in front) are perfect squares, then it is difference t 2 perfect squares
first one
8 is not perfect square
2nd one
(4e^4)^2-(9g^2)^2
third
25 is odd, so it cannot be split up into 2 nice numbers
4th
(11m^9)^2-(3n^5)^2
Here's the volume formula (and the area formula) typed a little neater than that.
(I'm guessing you forgot to type in your question?)
Answer:
41/12
Step-by-step explanation:
3 x 12 = 36 then you add 5 to get 41.
<em><u>It's 30</u></em>
<em>Hope that helped!</em>
