20 points math question #2
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Answers: 3
Mathematics, 21.06.2019 19:00, cassie2021
What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2
Answers: 2
Mathematics, 21.06.2019 21:30, amesha62
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
Mathematics, 21.06.2019 23:00, Izzyfizzy1
The value of cos 30° is the same as which of the following?
Answers: 1
Mathematics, 21.06.2019 23:30, lakeshia8880
At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250
Answers: 1
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