Which statement is true?
- all rectangles are squares.
- all parallelograms are...
Mathematics, 25.11.2019 04:31, dkdk31
Which statement is true?
- all rectangles are squares.
- all parallelograms are rectangles.
- all parallelograms are quadrilaterals.
- all quadrilaterals are parallelograms.
Answers: 1
Mathematics, 21.06.2019 16:30, ryleepretty
Quadrilateral ghjk has vertices g(2, 3), h(8, 2), j(6, 8), and k(3, 6). it is transformed according to the rule t(β4, β5). what are the coordinates of gβ? (β7, 3) (β2, 2) (β1, β7) (2, β2)
Answers: 2
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, ΞΌ, 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, kitttimothy55
Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out
Answers: 2
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