Mathematics, 30.06.2019 06:00, alondrasanchezvillan
Triangle pqr is transformed to triangle p′q′r′. triangle pqr has vertices p(3, −6), q(0, 9), and r(−3, 0). triangle p′q′r′ has vertices p′(1, −2), q′(0, 3), and r′(−1, 0). plot triangles pqr and p′q′r′ on your own coordinate grid. part a: what is the scale factor of the dilation that transforms triangle pqr to triangle p′q′r′? explain your answer. (4 points) part b: write the coordinates of triangle p′′q′′r′′ obtained after p′q′r′ is reflected about the y-axis. (4 points) part c: are the two triangles pqr and p′'q′'r′' congruent? explain your answer. (2 points)
Answers: 1
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
Triangle pqr is transformed to triangle p′q′r′. triangle pqr has vertices p(3, −6), q(0, 9), and r(−...
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