Mathematics, 08.07.2021 15:10 anabellabenzaquen
A shape is shown on the centimetre grid below.
+
Work out the area of the shape
after it has been enlarged by
scale factor 2.
State the units of your answer.
answer=20cm^2
Answers: 3
Mathematics, 21.06.2019 20:50, brea2006
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, 22.06.2019 00:30, woodfordmaliky
Tim has obtained a 3/27 balloon mortgage. after the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. how many years will he be paying for his mortgage in total?
Answers: 2
Mathematics, 22.06.2019 00:30, autumnmeadows20
Officer brimberry wrote 32 tickets for traffic violations last week, but only 4 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.
Answers: 1
A shape is shown on the centimetre grid below.
+
Work out the area of the shape
after i...
Work out the area of the shape
after i...
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