Answers by Knobi
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Answers by Knobi

Answers by Knobi
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a production manager tests 10 toothbrushes and finds that their mean lifetime is 450 hours. she then designs a sales package for this type of toothbrush. it states that consumers can expect the toothbrush
answered Mar 10, 2019
0 votes
59.1k views
(w15/w5)^4 Simplify it.
answered Jan 24, 2019
4 votes
54.0k views
The table shows the average bill totals for given numbers of diners at Simone’s restaurant. If the rate is constant and you graph this relationship with the number of people along the x-axis and bill amounts
answered Jul 26, 2018
5 votes
54.7k views
Why does a small particle size generally cause a reaction to proceed faster? a. the only reason is that there are more collisions per second. b. the collisions occur with greater energy. c. there are more
answered Jul 6, 2018
6 votes
26.9k views
Suppose you want to decrease your margin of error by a factor of 3. by what factor, do you need to increase your sample size? in other words, if you want to decrease your margin of error from 12% to 4%
answered Jan 26, 2018
5 votes
69.0k views
Andrew has a four-year college loan for 20,000. The lender charges a simple interest rate of 5 percent. How much interest will he have to pay
answered Jan 17, 2018
4 votes
172k views
Rock musician Donny West is paid 15% on his CD sales and tour video sales. Last year, he sold one million CDs and $550000 videos. The CDs were sold to the music store for $5 each. The videos were sold
answered Aug 27, 2017
2 votes
140k views
If Sally walked 1⁄2 mile in 1⁄6 hour, how fast, in miles per hour, was she walking?
answered Jan 18, 2017
1 vote
227k views
What is a 13 letter word for "study of people and the places where they live?"
answered Feb 3, 2016
2 votes
134k views
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