Let's call the two numbers a and b. So we know that the difference of the two numbers is 36:
a - b = 36
And we know that their sum is 286:
a + b = 286
We can use either of these equations to solve for one of the variables in terms of the other variable. Let's use the first and solve for a:
a - b = 36
a = 36 + b
Now we plug this into the other equation and solve for b there:
(36 + b) + b = 286
36 + 2b = 286
2b = 250
b = 125
Answer:
2x² + 6x - 4
Step-by-step explanation:
f(x) - g(x)
= 3x² + x - 3 - (x² - 5x + 1) ← distribute
= 3x² + x - 3 - x² + 5x - 1 ← collect like terms
= 2x² + 6x - 4
Answer:
20
Step-by-step explanation:
positive not negative
Answer:
y = 2/3x - 2
Step-by-step explanation:
y-intercept:
Point line crosses the y axis is -2 which is point (0, -2).
slope:
points (-3, -4) and (3, 0)
m = (y₂ - y₁) / (x₂ - x₁)
= (0 - (-4)) / (3 - (-3))
= 4 / 6
= 2/3
Equation of line using your y-intercept and slope from above:
y = mx + b
y = 2/3x - 2
Answer:
<h2>x > -8 is equivalent to -x < 8</h2>
Step-by-step explanation:
-x < 8 <em>change the signs</em>
x > -8