The elevation of city A is 96 feet below sea level; the elevation of city C is 24 feet below sea level. The elevation of city D Is 1/4 of the elevation of city C. Write an expression to represent the elevation of city D

In a column proof the right column states your reasons

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

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)?