Mathematics, 20.11.2021 08:20 sadeed00974
Here are two rectangles QR=10cm BC=PQ
The perimeter of ABCD is 26cm
The area of PQRS is 45cm^2
Find the length of AB
Answers: 2
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In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
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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
Here are two rectangles QR=10cm BC=PQ
The perimeter of ABCD is 26cm
The area of PQRS i...
The area of PQRS i...
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