matlab

1) Consider the following matrix [71 20 31 y = 45 10 82 17 21 77] a) [1 pts] Using single-index notation, find the index numbers of the elements which are greater than 50. b) [1 pts) Find the row and column numbers (sometimes called subscripts) of the elements which are greater than 50. c) [2 pts) Find the elements which are greater than 50. d) [2 pts) Find the elements which are greater than 10 and less than 50. e) [2 pts) Find elements which are between 0 and 10 (including 0 and 10) or between 70 and 80 (including 70 and 80)