Answer:
y = $30x ;
1 : $30
Step-by-step explanation:
Given that :
$60 is saved in electricity bill for every 2 panels
Model, y
Amount saved, y = amount saved per panel * number of panels
Let number of panels = x
Hence, total amount saved, y ;
y = $30x
Ratio of panels to money saved :
Number of panels : amount of money saved
2 : $60
1 : $30
Hence, $30 is saved in cost of electricity bill per 1 solar panel purchased.
I think it would be "It has 2 terms and a degree of 2", because the 3x^2y^2 and the -3x^2y^2 cancel out. Then, you're left with -5xy^2+2x^2.
In what remains, there are 2 terms, each with the highest degree of 2, so I would be led to believe A is your answer.
Answer:
7(x-2)(x+2)
Step-by-step explanation:
7x^2 -28
Factor out a 7
7(x^2 -4)
The terms inside the parentheses is the difference of squares, so it is factorable (a^2-b^2) = (a-b)(a+b)
7(x-2)(x+2)
Answer:
58 sq in
Step-by-step explanation:
You need to cut the drawing into pieces in your mind first. Starting at the bottom, the triangle's area is 1/2bh, so it is 1/2 x 8 x 6 = 24 sq in.
Now I would cut the top triangle off, and do 1/2bh, and the height is 3 as you can tell from the right measurement of 8 minus the left measurement of 5.
1/2 x 3 x 6 = 9 sq in.
Now you have a trapezoid left. It's area is (b1 + b2)/2 x h. Base 1 (the top) is 6 and base 2 (the bottom) is 4. 6 + 4 / 2 = 5. 5 x 5 = 25 sq in.
Now just add them up: 24 + 9 + 25 = 58 sq in.
