Giúp tui bài 9 với huhuhu =((
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Answers: 3
Mathematics, 21.06.2019 21:30
At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.
Answers: 1
Mathematics, 21.06.2019 21:30
Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price
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Mathematics, 21.06.2019 22:00
If tan2a=cot(a+60), find the value of a, where 2a is an acute angle
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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
Mathematics, 03.12.2020 19:00
Chemistry, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Chemistry, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00
Engineering, 03.12.2020 19:00
Mathematics, 03.12.2020 19:00