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ansand S Review Creudence and Area of a Circle
Question Help
3.5.PS-18
160 m
The diagram shows a track composed of a rectangle with a semicircle
on each end. The area of the rectangle is 12,800 square meters. What is
the perimeter of the track? Use 3.14 for
The perimeter of the track is
(Round to the nearest tenth as needed
square meters
meters

Hi my sisters and brothers can tell me the answer because i don’t understand the question

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

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