Mathematics, 14.12.2019 05:31 nyaa70
Alana spent 1/3 of her free time reading and 7/10 of her free time practicing her flute, what fraction of the time did she spend reading and practicing her flute?
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Mathematics, 21.06.2019 16:50
The parabola opens: y=√x-4 (principal square root) up down right left
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Mathematics, 21.06.2019 17:20
Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Alana spent 1/3 of her free time reading and 7/10 of her free time practicing her flute, what fracti...
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