Mathematics, 07.04.2020 21:21 Dweath50
Laboratory tests show that the lives of
light bulbs are normally distributed with
a mean of 750 hours and a standard
deviation of 75 hours. Find the
probability that a randomly selected
light bulb will last between 600 and 750
hours.
4
Answers: 3
Mathematics, 21.06.2019 20:30
Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?
Answers: 1
Mathematics, 21.06.2019 21:00
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
Laboratory tests show that the lives of
light bulbs are normally distributed with
a mean...
light bulbs are normally distributed with
a mean...
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