I don't exactly understand what you're asking, 36 feet does not need to be rounded to the nearest tenth as it is a whole number. Do you mean rounded to 40? (As that would be the nearsest multiple of 10) I'm a bit lost, but hopefully that helps
Step 1
Find the area of one tile
we know that
the area of a square is
where b is the length side of the square
In this problem
Substitute
Step 2
Find the area of the floor
The area of a rectangle is equal to
where
L is the length of the rectangle
h is the width of the rectangle
In this problem
Substitute
Step 3
Find the number of tiles needed
by proportion
therefore
<u>the answer is</u>
Answer:
4
Step-by-step explanation:
Well, you distribute the 8 to both terms since it is being multiplied.
8 * y = 8y
8 * 3 = 24
so the ending equation should be 8y + 24
V = x³ - 6x²y + 12xy² - 8y³
V = (x - 2y)³
= (x - 2y)(x - 2y)(x - 2y) ( expand first pair of factors )
= (x² - 4xy + 4y²)(x - 2y) ( multiply terms in first by terms in second )
= x³ - 4x²y + 4xy² - 2x²y + 8xy² - 8y³ ( collect like terms )
= x³ - 6x²y + 12xy² - 8y³
