Mathematics, 27.05.2021 21:50 kaylaamberd
3. (6 points) Forty percent of trees in a state forest are red pine. The rest are something else. Let the digits 1,
2, 3 and 4 represent a red pine. Simulate randomly checking 40 trees for red pine using these randomly
generated digits:
38517 05934 25353 28362 64932 09745 90580 74698
How many of the trees will be red pine?
Answers: 2
Mathematics, 21.06.2019 18:30
School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?
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Mathematics, 21.06.2019 19:30
Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 22:00
Determine if the equation defines y as a function of x: 2xy = 1. yes o no
Answers: 2
3. (6 points) Forty percent of trees in a state forest are red pine. The rest are something else. Le...
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