Mathematics, 05.07.2019 00:00 esanchez2002fcb
After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a) -3x^2+9x+3x^2=14+x-1 b)5x+4=3x^-2 c)-x^2+4x+7=2x^2-9 x^3+x^2+x=0
Answers: 1
Mathematics, 21.06.2019 13:30
David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?
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Mathematics, 21.06.2019 19:30
The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?
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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) = .
Answers: 3
Mathematics, 21.06.2019 22:30
What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)
Answers: 2
After being rearranged and simplified, which of the following equations could be solved using the qu...
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