5x+6y=18
5x=18-6y
x=(18-6y)/5
Use that in the other equation
18(18-6y)/5 - 15y = 36
64.8-21.6y - 15y = 36
28.8=36.6y
.7868=y
Now put that number in for y on the first equation
5x+6(.78) = 18
5x + 4.68 = 18
5x = 13.32
x = 2.66
and y = .78
Answer:
I NEEEEEEEED TO SEEEE GRAPHHHHHHHHHHHH
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
Answer:
x = 3 renders the same output for both functions
Step-by-step explanation:
From the graph, we see that at the point x = 3 both lines intersect. This means that their y value coincide for that value of x.
We check using the functions' expressions to verify that our answer is correct. Then we evaluate both functions separately at x = 3:

So we conclude that effectively, the input x=3 produces equal output value (-1) for the two given functions.
Answer:
Step-by-step explanation:
x^2 + 2x = 6x+45
x^2 -4x -45 =0
x^2 - 5x +9x -45 =0
x(x-5) +9 (x-5)=0
(x-5)(x+9)=0
x = 5, -9
x = 5; measure of exterior angle = 5^2+2(5) = 35
x=-9; measure of exterior angle = (-9)^2 + 2(-9) = 63