Solve using quadratic formula.
x² = 11x – 13
How do I do it

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Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

How do you summarize data in a two-way frequency table?