What is the value of x in triangle PQR below? Q
389
489
R
[Not drawn to scale)
88
0940
1329
1420
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The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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)?