Mathematics, 02.03.2021 02:50 TheCat250
You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the amount a family has spent on food during a year has been approximately $700. If you want to be 99% sure that you have estimated average family food expenditures within $50, how many families do you need to survey? Round your answer up to the nearest whole number, if necessary.
Answers: 3
Mathematics, 21.06.2019 20:20
How do the number line graphs of the solutions sets of -23 > x and x-23 differ?
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Mathematics, 21.06.2019 20:30
Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.
Answers: 2
Mathematics, 21.06.2019 21:50
Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab
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Mathematics, 21.06.2019 22:30
The area of a circle is equal to 1 dmΒ². find the radius of the circle.
Answers: 1
You are trying to estimate the average amount a family spends on food during a year. In the past the...
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