Mathematics, 14.07.2019 20:00 lele1522
Brant is preparing for the upcoming track season, and he wants to reduce the time of his 1-mile run. last year, he conducted an experiment to judge the effectiveness of two training programs: q30x and intensity. he randomly selected 10 of his competitors and asked 5 of them to use the q30x program and 5 of them to use the intensity program. to test the effectiveness of the programs, brant compared their average 1-mile run time after using the program to their average 1-mile run time before using the program. he found that those who used the q30x program improved their average 1-mile run time by 5% and those who used the intensity program improved their average 1-mile run time by 7%. which of the following statements properly describes the results of brant's experiment? a. the q30x program and the intensity program are both effective because the average participant 1-mile run time was reduced for each program, but the intensity program is the more effective program because it yielded a greater decrease in the average participant 1-mile run time. b. the q30x program is the only effective program because the average participant 1-mile run time had the greatest decrease, but the intensity program is not effective because it yielded a smaller decrease in the average participant 1-mile run time. c. the q30x program and the intensity program are both effective because the average participant 1-mile run time was reduced for each program, but the q30x program is the more effective program because it yielded a greater decrease in the average participant 1-mile run time. d. the intensity program is the only effective program because the average participant 1-mile run time had the greatest decrease, but the q30x program is not effective because it yielded a smaller decrease in the average participant 1-mile run time.
Answers: 2
Mathematics, 21.06.2019 14:10
An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?
Answers: 1
Mathematics, 21.06.2019 21:30
Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?
Answers: 3
Mathematics, 22.06.2019 00:00
Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.
Answers: 2
Mathematics, 22.06.2019 00:30
Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)
Answers: 2
Brant is preparing for the upcoming track season, and he wants to reduce the time of his 1-mile run....
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