Help with #4 please in MATLAB

Run your function to give result for each problem. 1. (12%) Calculate value of x 2. (13%) Create a vector v with 50 equally space element in which the first element is 93, the last element is 58. 1) What is the value of the element of v? 2) What is the sum of all clement for vector v? 3. (15%) Create a function named "Problem3" that requires input and output. The input is x and y. The output is z. e.g., [z] - Problem.3(x,y). This function represents z=x/y- 2/x-xy. Find the value of z for x 3.9 and y=8.8. 4.(15%) write a function to create a vector x is from 2 to 4.5 (25x 34.5) with incremental value 0.5, vector y - x; X. 3), then save matrix y into a text file 'ex l-p4.txt", so that in this text file. 1) value x is formatted with decimal notation, and keep two digits after decimal point; 2) value x. 3 will displayed with exponential notation and keep three digits after decimal points 3) each line only displays one x and x3, there is three spaces between x and x. 3 5.(15%) In your function, 1) create a vector x for 0 to 2x with incremental value 0.1, and vector yl and y2 such that: yl = sin(x)+1; y2 = sin(x +-1: 2) those 2 curves on the same plot, where yl's style is red color, data point is noted as +", and linked by dashed line and y2 style is green color, data point is symbolized with and linked by dotted line: 3) Include a title of the plot (Problem 5). Label the X-, y- axes as "X", "Y", Save the plot. 6. (15%) If OSX S2,0 Sy s 2x, z = sin( cos(x) + sin(y)) + 1; write function to generate 3D mesh plot by using 0.1 increment for x and y. Label the x, y, and z-axes as "X". "Y", and "Z." Include a title of the plot (Exam 1 - Problem 6). Save the plot as Problem 6. Hint: Use semicolons to prevent Matlab from showing the large matrices or vectors. 7.(15%) If the loaded data is a matrix form A, and Where 1 column is part number, 2 column is part density (kg/m), 3 column is part volume (m'). 1) Get a vector which has part density 2) Get a vector which has part volume 3) use above two vectors to calculate the mass for each sample Hint: Mass - (density) x (volume)