Which of the following statements must be true about the polynomial function f(x)? If 1+ /13 is a root of f(x), then - 1 - 13 is also a root of f(x),
If 1 + 131 is a root of f(x), then 1 - 131 is also a root of f(x).
If 13 is a root of f(x), then -13 is also a root of f(x).
If -13 + i is a root of f(x), then 13+ i is also a root of f(x).

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?