A combination lock has digit from 0 to 39 on it . three numbers are required to open the lock. how many combinations are possibl
1 answer:
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Answer:
Step-by-step explanation:
Let's find our C value for the quadratic equation.
That is our C. Since we added 9 to one side, we have to do the same to the other. We get:
Now, lets form the left side as a binomial squared.
Let's square both sides now:
Now, we subtract 3 from both sides to isolate the variable, X:
This means that the answers are:
I do not understand your answers though. Answer A makes no sense, answer B is 221, answer C is 115, and answer D also does not make sense. If you could clarify this portion, maybe I can help you find your alphabetic answer