Mathematics, 28.05.2020 01:04 OliviaHart123
A boat travels 80 miles each way downstream and
back. The total trip took 15 hours. If the boat travels
at 12 miles per hour in still water, what is the speed
of the current in miles per hour? Use rational
equations to solve this problem.
Answers: 2
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Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?
Answers: 3
Mathematics, 22.06.2019 02:00
Which expression is equivalent to (5x^7+7x^8) − (4x^4−2x^8)? a. 9x^8 + 5x^7−4x^4 b. 3x^8 + 7x^7 c. 12x^8 − 2x^4 d. 5x^8 + 5x^7 + 4x^4
Answers: 1
Mathematics, 22.06.2019 03:50
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
Mathematics, 22.06.2019 04:40
Will mark brainiest, , and rate to the best the table shows the number of blue marbles and red marbles that four friends have collected. which person has the lowest ratio of blue to red marbles? jasmineaaronluciangretchen
Answers: 2
A boat travels 80 miles each way downstream and
back. The total trip took 15 hours. If the boa...
back. The total trip took 15 hours. If the boa...
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