1. find an lu factorization of the following matrix. (20pts) [ 30 17 16 1 1 l- 31 o 2. find (a) nullspace (b) a basis for the column space and (c) the rank of the matrix. (20pts)

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

(: the two box-and- whisker plots below show the scores on a math exam for two classes. what 2 things do the interquartile range tell you about the two classes?