Step-by-step explanation:
x² + 4x - 9
= (x + 2)² - 13
a = 2, b = -13.
Answer:
1/4 of a pie
Step-by-step explanation:
2 / 8 = 1/4
Answer:
One solution
Step-by-step explanation:
They have isolated y for you in both equations so you can plug either one into the other.
y = 3x - 1
2x + 7 = 3x - 1
isolate the x
7 = x - 1
x = 8
Go back to the original and plug 8 into x to get y.
y = 2 (8) + 7
y = 16 + 7
y = 23
This means at (8, 23) y = 2x+7 is equal to y = 3x-1. In other words they share a point at (8, 23). This is the only solution because for any other x and y they'd not be equal.
Answer:
-11x +2
Step-by-step explanation:
1. Add:
4x-7 - 15x + 9
4x + 2 - 15x
2. Combine like terms:
4x +2 - 15x
-11x +2
Bye, have a great day/night.
40° is right I believe so
