Adalyn earns $42 for mowing lawns for 6 hours. If Adalyn charges at the same rate, how many hours will it takes her to earn $63
2 answers:
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Answer:
The function is one-to-one function ⇒ 1st
The function is one-to-one function ⇒ 2nd
The function is one-to-one function ⇒ 4th
Step-by-step explanation:
* Lets explain how to solve this problem
- One to one function is the function that has no reputation in the value
of the y-coordinates for every corresponding x-coordinates
- That means when you draw a horizontal line at any value of y, then
the horizontal line intersects the graph of the function at one point
only
- So to solve the problem look to the attached figures
# The red graph of the function ⇒1st graph
- In this graph if we draw a horizontal line at any value of y it will
intersect the graph at only one point
- Take care there is a horizontal asymptote at y= 1/3, that means
there is no value of x at y = 1/3
∴ The function is one-to-one function
# The blue graph of the function ⇒2nd graph
- In this graph if we draw a horizontal line at any value of y it will
intersect the graph at only one point
∴ The function is one-to-one function
# The green graph of the function ⇒3rd graph
- In this graph if we draw a horizontal line at any value of y it will
intersect the graph at only one point
∴ The function is one-to-one function
# The purple graph of the function ⇒5th graph
- In this graph if we draw a horizontal line at any value of y it will
intersect the graph at more than one point
∴ The function is not one-to-one function
# The black graph of the function ⇒4th graph
- In this graph if we draw a horizontal line at any value of y it will
intersect the graph at more than one point
∴ The function is not one-to-one function
* The answers are 1st , 2nd and 4th functions
This is a right triangle and to solve this you must use Pythagorean theorem:
a and b are the legs (the sides that form a perpendicular/right angle)
c is the hypotenuse (the side opposite the right angle)
In this case...
a = 60
b = x
c = 65
^^^Plug these numbers into the theorem
simplify
3600 + = 4225
Now bring 3600 to the right side by subtracting 3600 to both sides (what you do on one side you must do to the other). Since 3600 is being added on the left side, subtraction (the opposite of addition) will cancel it out (make it zero) from the left side and bring it over to the right side.
3600 - 3600 + = 4225 - 3600
0 + = 625
= 625
To remove the square from x take the square root of both sides to get you...
x = √625
x = 25
(option C)
Hope this helped!
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