Mathematics, 24.12.2019 13:31 mem8163
Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 68 m and length of one straight edge 140 m. what is the perimeter of the inside of the track?
Answers: 3
Mathematics, 21.06.2019 13:30
At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.
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 21:00
Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.
Answers: 2
Mathematics, 21.06.2019 21:00
Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)
Answers: 2
Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running t...
Social Studies, 20.07.2019 18:10
Business, 20.07.2019 18:10
Physics, 20.07.2019 18:10
Biology, 20.07.2019 18:10
History, 20.07.2019 18:10
Mathematics, 20.07.2019 18:10
Biology, 20.07.2019 18:10
Mathematics, 20.07.2019 18:10
Computers and Technology, 20.07.2019 18:10