Answer:
Which function has an inverse that is also a function
Answer with Step-by-step explanation:
We are given a variable b
We have to state the additive property of zero using the variable b.
Additive property of zero: It states that when any number b is added to zero then we get sum is equal to number itself.
Mathematical representation:
![b+0=0+b=b](https://tex.z-dn.net/?f=b%2B0%3D0%2Bb%3Db)
Suppose, a number b=9
Then, 9+0=9
0+9=9
This property is called additive property of zero because when 9 is added to 0 then we get sum equals to 9.
A rational expression is undefined when the denominator is zero.
![V=\dfrac{5-x}{x(x-2)}](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B5-x%7D%7Bx%28x-2%29%7D)
is undefined when x=0 or x=2.
Here is the correct order of the step:
Identify: Anna's time is the unknown
Strategize : let x = Anna's time
Set up : 7(40) = x(50)
Solve: x = 5.6
Check: 7(40) = 5.6(50)
<h3>What is Anna's time?</h3>
The first step is to determine the distance Allen travelled:
Distance = average speed x time
40 x 7 = 280 miles
The second step is to determine the time it took Anna to travel 280 miles.
Time = distance / average speed
280 / 50 = 5.6 hours
To learn more about average speed, please check: brainly.com/question/21734785
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