Write a MATLAB code that evaluates the following series: 1 - 2 + 3 - 4 + 5 - 6 + .... + 99 - 100 Write some lines of code to calculate the sum 1 times 2 + 2 times 3 + 3 times 4+ ... + 249 times 250. Write a program to calculate 1^1 + 3^2 + 5^3 + ... + 19^10 + 21^11 given following matrices for r and h, write a program to calculate and print the volume of a cone for all possible combinations of r and h. r = [1, 2.5, 3.25, 4.3, 7.6] h = [12.3, 14.1, 17.6] plot the following graph in MATLAB for the given data