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Serggg [28]
3 years ago
8

Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using th

e table. A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1025 h with a standard deviation of 88 h. What percent of these light bulbs will last as follows? (Round your answers to one decimal place.) (a) at least 940 h
(b) between 850 and 900 h ​

Mathematics
1 answer:
hodyreva [135]3 years ago
3 0
I think the answer us A b doesn’t adds up
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14 - 2x = 4a - 16

First, add 2a to both sides. / Your problem should look like: 14 = 4a - 16 + 2a
Second, simplify 4a - 16 + 2a to get 6a - 16. / Your problem should look like: 14 = 6a - 16
Third, add 16 to both sides. / Your problem should look like: 14 + 16 = 6a
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Answer:

Answer:

WF=34

Step-by-step explanation:

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So WF = 15x – 21

WF= 15(11/3) -21

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WF=34

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