At summer camp the ratio of boys to girls is 7:1. 1. If there were 63 boys how many girls were there?
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You can use the <u>determinant</u><u> (square root)</u> of a quadratic equation to determine the number and type of solutions of the equation.
> 0 → 2 real solutions
- if
is a perfect square, then rational sol'ns
- if
= 0 → 1 real solution (double root)
< 0 → 2 imaginary(complex) solutions