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A tutor gives John 5 assignments and asks him to pick 3 to complete. How many combinations of the 3 assignments are possible? A. 15 B. 8 C. 20 D. 10
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Updated 4/19/2013 7:33:25 AM
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From 5 assignments, the number of combinations of 3 = (5x4x3)/(3x2x1) = (5x4)/(2x1) = 10 (D)
Added 4/19/2013 7:33:25 AM
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A science teacher gives his students the choice of 7 projects. Each student has to complete 5 of the 7 projects. How many combinations of the 5 projects are possible? A. 21 B. 12 C. 31 D. 35
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Updated 4/19/2013 7:30:11 AM
1 Answer/Comment
From a choice of 7 projects picking 5, the number of combinations is (7x6x5x4x3)/(5x4x3x2x1) = (7x6)/(2x1) = 21 (A)
Added 4/19/2013 7:30:11 AM
1. Being aware of natural forces will _____________. A. make you paranoid while driving B. require you to think C. prepare you for emergency situations and help you avoid collisions D. let you have full control of the vehicle
Weegy: Being aware of natural forces will _____________.is letter C. prepare you for emergency situations and help you avoid collisions User: . What is the definition of “potential energy”? (More)
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Asked 4/19/2013 6:04:38 AM
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