Mathematics, 18.12.2019 20:31, abigailweeks10
An article in the journal of composite materials (vol 23, 1989, p. 1200) describes the effect of delamination on the natural frequency of beams made from composite laminates. five such delaminated beams were subjected to loads, and the resulting frequencies were as follows (in hz):
230.66, 233.05, 232.58, 229.48, 232.58
(a) find a 90% two-sided ci on mean natural frequency. round your answers to 2 decimal places..
(b) do the results of your calculations support the claim that mean natural frequency is 235 hz?
Answers: 2
Mathematics, 22.06.2019 03:30, srshelton
Anut store normally sells cashews for? $4.00 per pound and peanuts for? $1.50 per pound. but at the end of the month the peanuts had not sold? well, so, in order to sell 40 pounds of? peanuts, the manager decided to mix the 40 pounds of peanuts with some cashews and sell the mixture for $2.00 per pound. how many pounds of cashews should be mixed with the peanuts to ensure no change in the? profit?
Answers: 1
Mathematics, 22.06.2019 05:00, lechinastarks317
Sade bought 21 1/2 lb. of ground beef. he used 1/4 of the beef to make tacos and 2/3 of the remainder to make quarter-pound burgers. how many burgers did he make?
Answers: 3
An article in the journal of composite materials (vol 23, 1989, p. 1200) describes the effect of del...
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