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mafiozo [28]
3 years ago
8

The average life of a lightbulb is 2500 h, with a standard deviation of 200 h. Suppose that 10,000 bulbs are purchased to equip

a new building. Assume that the lives are normally distributed. How many of the light bulbs would be expected to burn out after just 1800 h?
Mathematics
1 answer:
Anna35 [415]3 years ago
4 0
0 lightbulbs would be expected to burn out in 1800 hours
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Step-by-step explanation:

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What is the solution to the equation 3.6m − 2.7 = −1.8m?
Finger [1]

Answer:

Option B is correct

m = 0.5 is the solution to the equation

Step-by-step explanation:

Given the equation:

3.6m-2.7= -1.8m

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3.6m-2.7+2.7= -1.8m+2.7

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3 years ago
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Feliz [49]
450

If he used 1/3 of the stock bottle, then you have
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4 years ago
Find the output of the function y = x - 4 if the input is 21
levacccp [35]
Substitute 21 for x.

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4 years ago
Classify each pair of angles as Complementary, Supplementary or neither.
stellarik [79]

Answer:


Step-by-step explanation:

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3. neither

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9. Complementary: they add to 90.

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3 years ago
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