How hours
many he answer
miles ride
32 / 2.5 = 12.8
Answer:
-2+2
Step-by-step explanation:
Since we have the value of x, 3+2, we can plug that value into the new equation.
We would recieve (3+2-1)/3+2
Which could simplify to -2+2
Cannot guarantee. But I believe the answers are:
1) (3,2)
2) (3,-2)
3) (-3,2)
4) (-3,-2)
Edit: These are correct. When you substitute these into each equation,you get 72.
The negatives work because (-x)^2 = positive
Using online calculators is great
2 x + 20 = 15 + 3 x 2x + 20 = 3x + 15 2x + 20 - 3x = 15 - 3x x + 20 = 15 - x = 15 - 20 - x = -5 - x = -5/-1 x = 5
F(x) = 3/2x - 9
f(-4) = 3/2(-4) - 9
f(-4) = -6 - 9
f(-4) = -15