How many columns does the transpose of the matrix below have? m = [ linspace(-1,1) linspace(0,1) ; linspace(100,1000) linspace(-100,100)]   Select one: a. 1000 b. 100 c. 200 d. 2 e. 1

Create a 3-by-3 matrix: A = [1 2 3;4 5 6;7 8 10] (a)Extract a submatrix B consisting of rows 1 and 3 and columns 1 and 2 of the matrix A (b)Interchange rows 1 and 3 of A and put it in a variable C. Hint: use the vector of row indices together with the colon operator (c)Create a vector version of the original matrix A. (d)Delete the 2nd column of the original matrix A and put it in a variable called A. (e)Insert a 2nd column to the new matrix A to restore it back to its original form A. (f) Extract those entries of the original matrix A that are greater than 5

Assign letter grades O solutions submitted (max: 1) In the attached spreadsheet, you are given homework grades of 25 students. Sheet 1 (hw1) stores the first homework grades, Sheet 2 (hw2) is the second homework grades and so on. Use either xlsread() or readmatrix() to import the given data into Matlab. Once you have the data in Matlab; 1- Create separate arrays for each homework, name them as hw1, hw2, hw3, hw4, hw5 2- Create an average grade array named hwAvg. Store the average homework grade in hwAvg using the below weights Homework 1, 2: each 15% Homework 3, 4 : 20% Homework 5: 30% 3- Create an array named letterGrade to store letter grades, this will be an array of strings. • 4- Preallocate the letterGrade array. Make sure it has the same length as hwAvg array. 5- Assign letter grades from hwAvg array using the grading policy shown below 100 - 90 : A <90 - 80 : B <80 - 70:C <70 - 60 : D <60 :F It is recommended that you download the file, see what it looks like, figure the steps…

find the result of the following commands on matrix [A] Z=4509 8327 10 2 16 1)sum (diag(fliplr(A'))) 2)tril(fliplr(A')) 3)sum (diag(A)) 4) In the above matrix change all elements that are above 6 to 10.