Mathematics, 28.04.2021 20:30 anonymous1813

Everyone do me a favor and nominate "thebecks" as the educator o. f the year!

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Mathematics, 21.06.2019 16:00, devenairefp85xfg

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

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Mathematics, 21.06.2019 17:00, cordovatierra16

Which graph corresponds to the function f(x) = x2 + 4x – 1?

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Mathematics, 21.06.2019 18:00, justijust500

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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Mathematics, 21.06.2019 19:50, Roshaan8039

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) = .

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