Solve the problem.Two surveyors 180 meters apart on the same side of a river measure their respective angles to a point between them on the other side of the river and obtain 54° and 68°. How far from the point (line-of-sight distance) is each surveyor? Round your answer to the nearest tenth of a meter.
Fill in the blank(s) with the appropriate word(s).
196.8 m, 171.7 m
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Simplify.3(x + 2y - z) - 3(2x - y + 3z)
A. -3x + 3y - 12z B. 9x + 9y - 12z C. -3x + 9y + 12z D. -3x + 9y - 12z
Solve the problem.Jonathan estimated his GPA would be 3.64. When grades came out, he saw that his GPA was 3.57. Did he receive better grades than his estimate or worse?
A. Better B. Worse
Find the standard deviation.The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest tenth of a mile the distance they travel one way from home to work. The six distances are listed below. Find the standard deviation. Round your answer to two decimal places. 20.7 23.9 39.9 33.6 12.1 21.6
A. 36.75 mi B. 4,333.64 mi C. 3,840.54 mi D. 9.93 mi
Evaluate the expression.
, if x = 28
A. 
B. 4
C. 28
D. 21