Mathematics, 09.11.2021 23:50 kbkbkbkb7611
2sin60°. cos60° = cos30°
Answers: 2
Mathematics, 21.06.2019 17:00, jaejaeJae9534
Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet
Answers: 1
Mathematics, 21.06.2019 19:30, taylor511176
Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?
Answers: 1
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.
Answers: 3
2sin60°. cos60° = cos30°...
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