Answer: 7 hours.
Step-by-step explanation:
The rental price is 15. Add 5 per hour (5x) and the total must be equal to $50
15+5x=50
Solve for x;

Answer:
6) y = -x - 5
7) y =
x + 3
Step-by-step explanation:
format y = mx + b
Answers:
- Function? No, it's not a function
- Domain: {15}
- Range: {0, -2}
===============================================
Explanation:
The domain consists of the set of x coordinates of each point. In this case, we only have one x value listed. The domain is {15}. Use curly braces even if there's only one item. This tells the reader we have a set.
The range is {0,-2} to indicate the y coordinates of the two points.
We don't have a function because x = 15 repeats itself. The input x = 15 leads to multiple outputs at the same time, which isn't allowed if you want a function. You can use the vertical line test as a visual way to see that we don't have a function.
0.8 miles per minute
48 miles per hour
Answer:
x = 6
Step-by-step explanation:
Looking at the attached figure:
As the triangle ABC is inscribed inside the circle and AB is the diameter of the circle => ABC is the right triangle
So that ∡ACB = 90°
As ACB is the right triangle, according to the Pythagoras theorem, we have the formula as following:

=> 
=> BC = 12
As O is the center of the circle
=> OA = 1/2 x AB = 1/2 x 20 = 10
Inside the triangle ABC, as OD is parallel with BC
=> AOD and ABC are similar triangles
=> 
=> 
=> x = 1/2 x 12 = 6
So x = 6