Find the circumference of each circle. use 3.14 or 22/7 for π.
a button with a radius of 21 mi...
Mathematics, 24.09.2019 14:30 shimmerandshine1
Find the circumference of each circle. use 3.14 or 22/7 for π.
a button with a radius of 21 millimeters
Answers: 1
Mathematics, 21.06.2019 12:30
How do you multiply a mixed fraction by a regular fraction
Answers: 1
Mathematics, 21.06.2019 17:30
Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut
Answers: 1
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
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