Answer:
The solution for the equation is .
Step-by-step explanation:
-Solve the equation:
-Subtract 7x from 2x:
-Subtract both sides by 5:
-Divide both sides by -5:
So, the answer is .
Find x when - 1/2 + x = - 21/4
1 answer:
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Answer:
with a .95 probability, the sample mean will provide a margin of error 0.196
Step-by-step explanation:
margin of error (ME) from the mean can be calculated using the formula
ME= where
- z is the corresponding statistic in the .95 confidence level (1.96)
- s is the population standard deviation (1 min.)
- N is the sample size (100)
ME==0.196
95% confidence interval for check-out time would be 3 ±0.196 min