Mathematics, 24.10.2019 17:43 lizsd2004
Aboat can travel 44mph in still water. if it travels 276 miles with the current in the same length of time it travels 252 miles against the current, what is the speed of the current?
Answers: 3
Mathematics, 21.06.2019 15:10
Aline on the wall and a line on the floor are skew. always, sometimes, or never?
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Mathematics, 21.06.2019 22:00
Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0
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Mathematics, 22.06.2019 02:40
Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?
Answers: 3
Aboat can travel 44mph in still water. if it travels 276 miles with the current in the same length o...
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