Use blackslash (\) operator to solve the system of equations, ax = b, for unknown x’s and put the answer in p1. the coefficient matrix a has a dimension of 30 rows by 30 columns. all elements are zero except for those on the diagonal, subdiagonal and superdiagonal. to create a, first create a 30 × 30 matrix with all zero and then modify the non-zero elements using linear indexing. another method is to explore function diag.

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

This is about circle theorems. someone asap : (

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas