Mathematics, 27.06.2019 14:50 annette211pdd8v9
Abuilding manager installs sensors to see how often people turn off the lights when they leave the room. after a month the manager has a sample size of 625, a sample mean of 47%, and a sample standard deviation of 5%. what is the confidence level for a confidence interval of 46.8% to 47.2%? a. 85% b. 99.7% c. 95% d. 68%
Answers: 1
Mathematics, 21.06.2019 18:30
Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?
Answers: 1
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Mathematics, 21.06.2019 21:00
X+y=-4 x-y=2 use elimination with adding and subtraction
Answers: 3
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