Mathematics, 19.09.2019 19:10 nardosem9
Abox in a certain supply room contains four 40-w lightbulbs, five 60-w bulbs, and six 75-w bulbs. suppose that three bulbs are randomly selected. a. what is the probability that exactly two of the selected bulbs are rated 75-w? b. what is the probability that all three of the selected bulbs have the same rating? c. what is the probability that one bulb of each type is selected? d. suppose now that bulbs are to be selected one by one until a 75-w bulb is found. what is the probability that it is necessary to examine at least six bulbs?
Answers: 3
Mathematics, 21.06.2019 15:00
An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?
Answers: 1
Mathematics, 21.06.2019 16:30
Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $
Answers: 1
Mathematics, 21.06.2019 19:10
Which of the following is the shape of a cross section of the figure shown below
Answers: 3
Mathematics, 21.06.2019 19:30
How are sas and sss used to show that two triangles are congruent?
Answers: 1
Abox in a certain supply room contains four 40-w lightbulbs, five 60-w bulbs, and six 75-w bulbs. su...
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