Answers: 2
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
Mathematics, 21.06.2019 20:00
Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !
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Mathematics, 21.06.2019 21:00
Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2
Answers: 2
Mathematics, 21.06.2019 21:50
What additional information is needed to prove that the triangles are congruent using the aas congruence theorem? o lolm o oama o zloa zlma o zlao – zlam
Answers: 1
Solve the equation 4x^2-17x-15=0...
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