The radius of a circle is 7 kilometers. What is the length of a 45° arc?
r=7 km...
Mathematics, 09.04.2020 02:03 BreBreDoeCCx
The radius of a circle is 7 kilometers. What is the length of a 45° arc?
r=7 km
Answers: 3
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Name the most appropriate metric unit for each measurement like the mass of cow
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Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
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