Mathematics, 05.05.2020 16:27 angelicf394
Laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation 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 825 and 900 hours. ( In percentage )
Answers: 1
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50 ! pls ! 12. building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.
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What is the equation of a line passing through (-6,5) and having a slope of 1/3
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What rotation was applied to triangle def to create d’e’f’?
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Laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hour...
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