Mathematics, 03.07.2019 14:00 ronniethefun
Joanna went school supply shopping. she spent $30.70 on notebooks and pencils. notebooks cost $2.20 each and pencils cost $1.09 each. she bought a total of 19 notebooks and pencils. how many of each did she buy?
Answers: 1
Mathematics, 21.06.2019 17:10
The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable
Answers: 2
Mathematics, 21.06.2019 19:30
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
Mathematics, 21.06.2019 20:00
Last one and the bottom answer choice is y=(x-4)^2+1 you guys!
Answers: 1
Joanna went school supply shopping. she spent $30.70 on notebooks and pencils. notebooks cost $2.20...
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