Answer:
126 ft
Step-by-step explanation:
Calculate the area (length x height)
14 x 9 = 126
Answer:
The answer is 3x^2+7x+2
Step-by-step explanation:
Multiply each term of the second bracket with the first bracket.
We can write:
(x+2)(3x+1)= 3x(x+2)+1(x+2)
By multiplying the terms we get:
=3x^2+6x+x+2
Now simplify by combining like terms:
=3x^2+7x+2
Thus the answer is 3x^2+7x+2....
2b: If x is 2.1, then one side of the rectangle is 2.1, and another is 2.1*5=10.5. Thus, the perimeter is 2*(2.1+10.5)=2*12.6=25.2.
3: One side of the square with side-length three will not be on the outside, so we have 3*3=9 inches perimeter from the square of side-length 3. The square of side-length 6 has 3 from the top side missing from the outer perimeter, because it coincides with a side of the square of side-length three. This square contributes 6*4-3=33 inches. The total perimeter is 33+9=42 inches.
I believe the answer is B.
~I hope this was of help~
