Rewrite the following expression and then evaluate. −4 - 12

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

What situation is an example of an observational study

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?