Triangle ABC is similar to triangle RST, which is formed
using RS, as shown.
What could be the coordinates of point T?
ܗ
O (-4,0)
64,1)
O (1,-4)
0 (0,-4)
ܙ
ܬ
ܚ
-6 -5 -4 -3 -2 -1,
+
2
+
3
4
5
6
x
TYT
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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)?