Mathematics, 22.02.2021 22:30, lucywood2024
A non-engineer decides to strap 20 water rockets to their back and launch themselves into the air. In order to see whether they would have enough initial thrust, they test 15rockets, and the mean thrust was found to be 31.275pounds, with a standard deviation of 5.755 pounds. a. How much initial thrust do you expect to get from a typical rocket? Use 98percent confidence. b.The non-engineer wants 600 pounds of total initial thrust from the 20 rockets. What is the probability that his/her scheme will produce the minimum required thrust?
Answers: 2
Mathematics, 21.06.2019 17:40, challenggirl
Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882
Answers: 1
A non-engineer decides to strap 20 water rockets to their back and launch themselves into the air. I...
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