Answers: 3
Mathematics, 21.06.2019 12:30
Which of the following transformations does not preserve congruence? * 5 points a. (x, y) โ (y โ 3, x โ 3) b. (x, y) โ (x + 5, y โ 1) c. (x, y) โ (y + 9, โx + 2) d. (x, y) โ (3x + 1, 3y โ 2)
Answers: 3
Mathematics, 21.06.2019 18:00
Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.
Answers: 2
Mathematics, 21.06.2019 18:50
Which of the following values cannot be probabilities? 0.08, 5 divided by 3, startroot 2 endroot, negative 0.59, 1, 0, 1.44, 3 divided by 5 select all the values that cannot be probabilities. a. five thirds b. 1.44 c. 1 d. startroot 2 endroot e. three fifths f. 0.08 g. 0 h. negative 0.59
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) โ sinh2(x) = 1 and (b) 1 โ tanh 2(x) = sech 2(x). solution (a) cosh2(x) โ sinh2(x) = ex + eโx 2 2 โ 2 = e2x + 2 + eโ2x 4 โ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) โ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 โ sinh2(x) cosh2(x) = 1 or 1 โ tanh 2(x) = .
Answers: 3
60/100 in simplest form...
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