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At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?
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What will be the end result for the taxpayer who filed his federal income tax return using the 1040ez form shown belowa he'll owe $173b he'll receive a refund of $173c he'll owe $3921d he'll receive a refund of $3921
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Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?
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Mathematics, 22.06.2019 04:30
Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.
Answers: 1
Adeposit of $7,000 at 8.5% for 120 days.=...
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