Mathematics, 24.06.2019 17:30, lobatospitones
Kendra was asked to find the number of students who planned to attend the evening symphony performance. she was told that 40 percent of the 50 students planned to attend. kendra’s work is shown below. 40x2/100x2=80/100what mistake did kendra make? kendra should have multiplied by 4 instead of multiplying by 2.kendra should have divided by 2 instead of multiplying by 2.kendra should have added 40 and 50.kendra should have subtracted 40 from 50.
Answers: 3
Mathematics, 22.06.2019 02:30, adrianmelchor146
An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb. the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.
Answers: 3
Mathematics, 22.06.2019 03:30, mbonham481
Which two properties of equality could zoe use to finish solving for x? the equation is 3x - 4 = -10 for x so a either the addition or subtraction property of equalityb ether the multiplication or division property of equality c ether the addition or division property of equality d ether the subtraction or division property of equality just a simple a b c or d plz.
Answers: 2
Kendra was asked to find the number of students who planned to attend the evening symphony performan...
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