Mathematics, 28.06.2019 12:30 lclaudettecarte4720
On a game show, elena is given the choice of three doors: behind one door is the grand prize; behind the others, consolation prizes. she picks door a, and the host, who knows what is behind each door, opens door b, revealing a consolation prize. the host then offers elena the opportunity to change her selection to door c. what should she do? a)she should not accept because the probability of door a being the grand prize increased. b)she should accept because the probability of door c being the grand prize increased. c)she could either accept or not accept because now the probabilities of both doors are equal. d)she could either accept or not accept because the probabilities of the three doors were equal from the beginning. (i've already tried the last answer (d), it wasn't correct : < )
Answers: 1
Mathematics, 21.06.2019 23:00
What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top
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Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)
Answers: 3
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