Mathematics, 02.02.2021 01:00 bdog2213
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 120 hours. If exactly 95% of the bulbs die before 920 hours, find the mean lifetime of the bulbs. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal Place
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Mathematics, 21.06.2019 15:00
Idon’t understand this.. will someone ? will mark brainliest along with 20 points.
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Mathematics, 22.06.2019 00:00
50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13
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Mathematics, 22.06.2019 02:00
The deepest part of the swimming pool is 12 feet deep.the shallowest part of the pool is 3 feet deep.what is the ratio of the deeply of the deepest part of the pool to depth of the shallowest part of a pool?
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Mathematics, 22.06.2019 03:30
Given that the images represent 4 steps in the construction of a line segment congruent to a given line segment, which is step 3 in the construction?
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