Mathematics, 27.05.2021 09:50, megamorph

Please help me with these 3 questions!! Will mark Brainliest :)

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Mathematics, 21.06.2019 19:40, evarod

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.

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Mathematics, 21.06.2019 21:00, ijohnh14

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

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Mathematics, 22.06.2019 00:00, baileypreston311

Use the given information to determine the exact trigonometric value.

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Mathematics, 22.06.2019 01:00, jor66

Luisa sells stuffed animals. she sells her stuffed elephant for $34.90, and the sales tax is 6% of the sale price. about how much is the sales tax on the elephant?

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