Mathematics, 19.01.2021 22:00 ultimateapes
PLEASE HURRY IM TIMED
Ari decides to run 8.5 kilometers this weekend. He jogs 8.9 laps around the running track on Saturday. How many more kilometers does he need to jog on Sunday?
Venue
Kilometers
Pool
0.05
Running Track
0.4
Which equation shows the first step in solving this problem?
y=8.9x0.4
y=8.5x0.4
y=8.5 divided by 0.4
y=8.9 divided by 0.4
Answers: 3
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X+y=-4 x-y=2 use elimination with adding and subtraction
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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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PLEASE HURRY IM TIMED
Ari decides to run 8.5 kilometers this weekend. He jogs 8.9 laps around the r...
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