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:
5 units
Step-by-step explanation:
radius = 1/2 diameter
10/2 = 5
Answer:
784
Step-by-step explanation:
Use long multiplication to evaluate.
Answer:
11,000
Step-by-step explanation:
8,000 + 3,000
2nd or 3rd grade math!
Answer:
x=7
Step-by-step explanation:
3(2x+6)=60
2x+6=20
x+3=10
x=7