The equation cos−1 = x can be used to determine the measure of angle bac. what is the degree measure of angle bac? round to the nearest whole degree.

X2 + y 2 = 36 x + y = 6 solve the system of equations.

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line

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)?