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For what integer value of x is 2x-9<5 and x-1>4? Find a basis of the subspace of R4 that consists of all vectors perpendicular to both [1,0,0,7] and [0,1,-9,5]. Please show work!? Hey everyone! I need some help on a math problem. What is the exact value: Sin(Cos^-1(5/6)-tan^-1(1/3)).? The odds against nolan getting promoted are 1:9 find the probability that nolan gets promoted? Describe and correct the error in the following statement. If -6 is a solution of the polynomial equation f(x)=0,then -6 is a factor of f(X)?