Add both together by combing like terms to get 8x^2-x-4
So with this, we will be using proportions. To solve for x, our proportion will be 
Firstly, cross-multiply: 
Next, subtract 36 on both sides: 
Next, replace -9x with 3x-12x 
Next, factor x^2+3x and -12x-36 separately:
. After, rewrite it as 
Next, solve for x separately in the two parentheses:


Since we can't have a negative length, x = 12.
To solve for y, our proportion will be 
Firstly, cross-multiply: 
Next, just square root each side, and your answer will be (rounded to hundredths) 
In short, x = 12 and y = 10.39.
Answer:
Should be 19.533333 (3 keeps repeating)
Step-by-step explanation:
if you add all the numbers up it equals
293
There are 15 points so you should just have to do 293/15
Answer:
40% decrease
Step-by-step explanation:
The decrease in area is 20-12 = 8 square feet. As a percentage of the original area, that is ...
8/20 = 40/100 = 40% . . . . decrease in area
<span>1 x 109my opinion is : 109 because that might confuse you^1 x 10 ^ 9.</span>