y = x² - 4x + 8
4x + y = 12
4x + y = 12
4x + (x² - 4x + 8) = 12
x² + 4x - 4x + 8 = 12
x² + 8 = 12
- 8 - 8
x² = 4
x = ±2
4x + y = 12
4(2) + y = 12
8 + y = 12
- 8 - 8
y = 4
4x + y = 12
4(-2) + y = 12
-8 + y = 12
+ 8 + 8
y = 20
(x, y) = (2, 4) and (-2, 20)
Answer:
78
Step-by-step explanation:
74 75 76 76 78 78 78 78 79
78 is in the middle
Answer:
$12/hr
Step-by-step explanation:
48 is for 4 hours so for 1 hour you divide by 4
48/4=12
Answer:
question 2 is B. 3 units down
question 3 is B. 4 units down
Step-by-step explanation:
graphed it again luv <3
Answer:
Sister- 11 Years Old
Andre- 13 Years Old
Brother- 16 Years Old
Step-by-step explanation:
Multiply 16 times 3, minus 1= 47
Then add 11, 13, 16 and 47 up
You'll end up with 87 as your answer