Answer:
The answer IS (-1,3)
Step-by-step explanation:
Plug in these (answers) and you get 2 true statements:
-x +y=4
1 + 3 = 4 (because the neg. 1x multiplied by -1 answer = positive 1.
6x +y = -3
6(-1) + (3) =- 3
-6 +3 = -3
Answer:
x^2 + 6x + 8
Step-by-step explanation:
area of blue = x^2
area of pink= 2x
area of green=4x
area of brown=8
Adding all the area.
we get : x^2 + 6x +8
Answer:
$2.85
Step-by-step explanation:
First, add the bill up ($8.70 + $10.30 = 19). So now you need to find what 15% of $19 is...To find the percentage of something you need to turn it into a decimal, 0. (whatever the percentage number is). So in this case, 19 times 0.15, which is a tip of $2.85.
You need to bring the right to the left
2X^2-9x-x^2+20=0
So you combine and get
X^2-9x+20
(X-4)(X-5)
Cuz -4 times -5 =20 and -4+-5=-9
So solve X-4=0. X-5=0
X=4. X=5
