Các tập nào sau đây là không gian tuyến tính trongRna)E={x= (x1,...,xn)∈Rn:x1=x2=···=xn= 1}b)E={x= (x1,...,xn)∈Rn:x1+x2= 1}c)E={x= (x1,...,xn)∈Rn:x1>0}d)E={x= (x1,...,xn)∈Rn:x1>0,x2>0,..., xn>0}

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

Quadrilateral ghjk has vertices g(2, 3), h(8, 2), j(6, 8), and k(3, 6). it is transformed according to the rule t(–4, –5). what are the coordinates of g”? (–7, 3) (–2, 2) (–1, –7) (2, –2)

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online