1. (3 pts) What is the size of array x = [1 2 -3) (how many rows and columns)? 2. (3 pts) What is the size of array x = [1 2 -3; 5 7 0) (how many rows and columns)? 3. (4 pts) Write one line of MATLAB code to create an array of size 3 x 4 consisting of random numbers with values between 0 and 1. 4. (4 pts) Write one line of MATLAB code to create an array of size 3 x 4 consisting of random numbers with values between 2 and 5. 5. (4 pts) Write one line of MATLAB code to create an array of size 3 x 4 consisting of random numbers with values between -2 and 4. 6. (4 pts) If A is an array of size NXM (where N and M are not given), write one line of MATLAB code to replace all elements in the first row of A with the value 1. 7. (4 pts) If A is an array of size NXM (where N and M are not given), write one line of MATLAB code to replace all elements in the odd rows of A with the value 1. 8. (5 pts) If A is an array of size N X M (where N and M are not given, but now we know that N is an even number), write one line of MATLAB code to replace the odd rows of A