Answer:
two million.
Step-by-step explanation:
The last one: the arc AB is a semicircle.
a semicircle is 180 degrees
Answer:
34 m²
Step-by-step explanation:
Answer:
The markup for the shoes is 20 percent.
Step-by-step explanation:
if the mean is 70 minutes, then 90 minutes is 2 standard deviations above 70. if you look at the bell curve i drew, the percent of exams that took over 90 minutes is 2.5%
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