A surveyor wants to know the length of a Tunnel built through a mountain according to her equipment she is located 340m from one entrance of the tunnel at an angle of 58 degrees to the perpendicular also according to her equipment she is 193 M from the other entrance of the tunnel at an angle of 21 degrees to the perpendicular based on these measurements find the length of the entire tunnel Please help

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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)?