Mathematics, 29.11.2019 11:31 nauticajanke03
The perimeter of a triangle is 7a-11b. if two of its sides are 2a+b and a-9b, what is the third side?
Answers: 1
Mathematics, 20.06.2019 18:02
Marie will earn $15 per hour at a new job. during training, she will earn $10 per hour. what percent of marie’s regular hourly rate will she earn during training?
Answers: 3
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
The perimeter of a triangle is 7a-11b. if two of its sides are 2a+b and a-9b, what is the third side...
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