Mathematics, 12.02.2021 04:40 triggercell
A television that was originally marked $199.95 is now 25% off. Write a linear expression for the new cost of the television. Then calculate the sale price of it. A. c – 0.25c; $49.99 B. c + 0.25c; $249.94 C. c – 0.25c; $149.96 D. c + 0.25c; $149.96
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
Mathematics, 21.06.2019 22:30
Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1
Answers: 2
A television that was originally marked $199.95 is now 25% off. Write a linear expression for the ne...
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