A <u>trapezoid</u> is a quadrilateral with exactly one pair of parallel sides.
Formula for area: 
In this formula, the bases are the parallel sides.
Now plug the information into the formula.
.
Follow your order of operations, simplify inside the parentheses first.
.
(1/2)(8) is 4 so we have (4)(9) which is 36.
So the area of the trapezoid is 36.
Answer:
35 inches
Step-by-step explanation:
The perimeter of a rectangle is given by
P = 2(l+w)
We know the perimeter and the length
84= 2 ( l+7)
Divide each side by 2
84/2 = 2/2 (l+7)
42 = (l+7)
Subtract 7 from each side
42-7 = l+7-7
35 = l
The length is 35 inches
Answer:
A
Step-by-step explanation:
x | y
0 0
1 4
2 n -> 8
3 12
I've rewritten the x-y table so it's easier to read.
Take a point: 2,8. 2 times 4 is 8.
Take another point: 3,12. 3 times 4 is 12.
Ooh, looks like we have a pattern! After testing all the points (which you should always do in case there's an outlier) each x is multiplied by 4 to get the y. The formula for this is <u>y=kx,</u> where k is the constant of proportionality. So the equation is <u>y=4x.</u> This means x and y are directly proportional.
(They would be inversely proportional if in the form y=k/x; jointly proportional if they were in the form z=kxy, and nonproportional if there was no relationship at all.)
Answer:
A) 7x^3 + 13x^2 + 8x + 9
Step-by-step explanation:
(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)
I like to line them up vertically
7x^3 +3x^2 + 2x
+ (10x^2 + 6x + 9)
-----------------------------------
7x^3 +13x^2 +8x +9
