Hi there!
3c + 2d = 2 for d = 4
3c + 2(4) = 2
3c + 8 = 2
Subtract 8 to both sides
3c + 8 - 8 = 2 - 8
3c = -6
Divide both sides by 3
3c/3 = -6/3
c = -2
I hope I helped!
Answer:
t = 1 second
Step-by-step explanation:
The height of a golf ball, in meters, x seconds after it has been hit is given by the expression.

We need to find the time when the ball will hit the ground.
When it hits the ground, h=0

It is a quadratic equation. The solution of the above equation is :
x = 1 seconds, x = -0.02 seconds
Hence, after 1 second the ball will hit the ground.
Answer:
C. The solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.
Step-by-step explanation:
In the graph, the x axis represents the number of hours worked and the y-axis represents the hourly rate.
It is given that the hourly rate is $20.
While seeing the options, clearly, (0, 20), (0, 500) and (20, 25) are not points on the graph.
Hence, the correct option is (C).
Step-by-step explanation:
You graph the X first and then the Y second. Graph ( 7, -30)