Mathematics, 05.05.2020 19:11 juliannabartra
Select the equation that has infinitely many solutions.
-6(2x+3)=−12x−18
−7(2x−2)=−14x−14
9−(8x−3)=8x+12
4x+5+x=5x−2
Answers: 1
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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?
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Select the equation that has infinitely many solutions.
-6(2x+3)=−12x−18
−...
-6(2x+3)=−12x−18
−...
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