aria0826
23.08.2019 •
Mathematics
Pizza delivery times at pizza time are normally distributed with a mean time of 27 minutes and a standard deviation of 3 minutes. approximately what percent of pizzas are delivered between 24 and 30 minutes?
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Ответ:
Ответ:
x < -4 or x > 1
Step-by-step explanation:
First factoriseDraw a graph of the parabolaIdentify the x intercepts on the axisDecide if the intercepts are open or closed circlesShade in the area that satisfies the inequality