Arectangle’s length is 4 more than twice its width. its area is 240 square centimeters.
complete the work to find the dimensions of the rectangle.
w(2w + 4) = 240
2w2 + 4w = 240
2w2 + 4w – 240 = 0
2(w + 12)(w – 10) = 0
what is the width of the rectangle? what is the length of the rectangle?

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)?