8x^2-14xy+3y^2 is the answer
One solution
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Answer:

Step-by-step explanation:
By definition, a relation is a function if and only if each input value have one and only one output value.
The input values are the x-values and the output values are the y-values.
Given the function f(x):

You need to substitute
into this function:

And now you must evaluate in order to find the corresponding output value.
You get:

The function g(x) is:

Then, you need to substitute
in the function:

And finally you must evaluate in order to find the corresponding output value. This is:

7.83% of the racers did not complete the race.
Step-by-step explanation:
Given,
Total racers who started = 230
Racers who completed = 212
Racers who gave up = 14
Disqualified racers = 4
Therefore, those who gave up and disqualified could not complete the race.
Racers who did not complete = 14+4 = 18
Percent of racers = 
Percent of racers = 
Percent of racers = 7.826%
Rounding off to nearest whole number
Percent of racers = 7.83%
7.83% of the racers did not complete the race.
Keywords: percentage, addition
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