Mathematics, 25.07.2019 09:30, naseem94
Four tangent circles centered on the x-axis are shown below. the radius of circle a is twice the radius of circle o. the radius of circle b is three times the radius of circle o. the radius of circle c is four times the radius of circle o. all circles have integer radii. the point (63, 16) lies on circle c. what is the standard equation of circle a? a detailed explanation would be preferred : )
Answers: 1
Mathematics, 20.06.2019 18:04, 8236
Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.
Answers: 2
Mathematics, 21.06.2019 22:30, badpotterchris
60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?
Answers: 1
Four tangent circles centered on the x-axis are shown below. the radius of circle a is twice the rad...
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