A total of 426 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
ickets sold was two times the
number of adult tickets sold. How many adult tickets were sold?
number of adult tickets sold. How many adult tickets were sold?
1 answer:
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We must graph y=x^3-9x^2+11x+21. Please, see the attached file.
Then we see were the graph cuts the x-axis, and these values of x are the real solutions of the given equation:
The real solutions of the given equation are:x = -1, 3, and 7
Then we see were the graph cuts the x-axis, and these values of x are the real solutions of the given equation:
The real solutions of the given equation are:x = -1, 3, and 7