The performance of a cyclist in a race is affected by whether it rains or not that day. The probability the cyclist crashes is 9/10 when it rains and 1/10 when it's dry.
On a given day the probability of rain is 1/3.
What is the probability that the cyclist crashes on any given day?

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation:

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