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Mathematics, 05.07.2019 20:20, skyvargasov9cad
Beth is designing a business card. she makes a scale drawing of her old business card by using the scale factor 5/4. her scale drawing is 2 1/2in by 5in rectangle.
the print shop says the scale drawing is a reduction of the original card because the original card must be 3 1/8in by 6 1/4in. which explains the print shop’s error?
a. the scale factor is greater than 1 so the scale drawing is an enlargement, and the original card is 2in by 4in
b. the scale factor is greater than 1 so the scale drawing is an enlargement, and the original card is 3 3/4in by 6 1/4in
c. the scale factor is a fraction so the scale drawing is an reduction, and the original card is 2in by 4in
d. the scale factor is a fraction so the scale drawing is an reduction, and the original card is 3 3/4in by 6 1/4in
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Answers: 3
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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
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Beth is designing a business card. she makes a scale drawing of her old business card by using the s...
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Mathematics, 02.10.2019 21:10