Which statement regarding polynomials and their zeros is true? f(x) = (2x2 +25)(x + a) has zeros of 25 and a f(x) = x3 - ax + 16x - 16a has zeros of 4 and a only. f(x)=x2-ax? - 9x + 9a has zeros of 23 and a f(x) = (x2 - 1)(x + a) has zeros of 1 and -c only.

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?