Mathematics, 15.12.2020 23:00 Emptypockets451
A research team estimates that 30% of their questionnaires will not be returned.
How many questionnaires should they mail out in order to be reasonably certain
that at least 750 would be returned?
Answers: 1
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Two lines parallel to the same plane are parallel to eachother
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Mathematics, 21.06.2019 18:30
Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?
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Mathematics, 21.06.2019 20:00
0if x and y vary inversely and y=6 as x=7, what is the constant of variation?
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Mathematics, 21.06.2019 20:20
How do the number line graphs of the solutions sets of -23 > x and x-23 differ?
Answers: 1
A research team estimates that 30% of their questionnaires will not be returned.
How many questionn...
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