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Mathematics, 29.05.2020 08:57 cacaface311
Davis wants to find the solutions of this system of equations. -4x-7=y
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Answers: 2
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Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
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Mathematics, 21.06.2019 21:00
Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 ā 0.25 x 2.4 x 0.65
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Davis wants to find the solutions of this system of equations. -4x-7=y...
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