please use all the question using MATLAB

Question 1 B = 612 14 id iv. V. a. Given 15 4 10 151 A = 6 25 30 351 12 14 Determine: Subtraction of A' from B Multiplication of AandB Element by clement multiplication of A and B Sum of A - 5B with result from (iii) Change the value at location 2,3 from matrix B with a value of a multiplication between location 1,2 of matrix A and location 2.2 of matrix B [1.5 marks/markah] b. For all the functions below, find their answer correctly up to 2 significant digit by using MatLAB. (Use matlab command "format") 6x+48-5 12x1-7x2+3x+9 = 0.7108 when x = 2 (2x* - 7x* + 2x - 10)( x* + 2x + 4) Let f(x) = 2x - 7x* + 2x - 10. Solve the cubic equation when f(x) = 0. Let f(x) = x + 2x + 4 = 0. Solve the equation Starting at x = -5 find an approximate root of f(x) = x - 2x - 2x + 5 i iv. [1.5marks/markah] c. You are given a function y = 1/(1 + 99e05t) over the interval [0,301, by using MATLAB; Plot the function given Give comment for every line of the code iii. Display table for this function [2.0 marks/markah] d. You are given a function f(x) = x* over the interval 1-2 2], by using MATLAB ii iv. V. vi Plot the function given Explain your code using comments Display table for the function as follows 2 f(x) 1-2).......$(2) [2.5 marks/markah)