Provide an appropriate response.Let ABC be a triangle, and let M be the midpoint of side 
. If 
is perpendicular to 
, prove that triangle ABC is an isosceles triangle.
What will be an ideal response?
Answers will vary. A sample correct response would be as follows.
MB = MC, 
and clearly 
By SAS, 
, and so 
i.e. ABC is an isosceles triangle.
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Find the indicated root of the given equation by using Newton's method.3x - sin x = 1 (only root)
A. 0.4745682 B. 0.4902955 C. 0.5124897 D. 0.4903152
Simplify the expression.
A. 
B. 
C. 
D. 
E. 
Solve the application and answer with a complete sentence. 36 out of 144 fish in one lake were tagged by a wildlife researcher. At a second lake, 220 fish were tagged. If fish were tagged at proportional rates in the two lakes, how many fish were in the second lake?
A. There were 55 fish in the second lake. B. There were 880 fish in the second lake. C. There were 1,140,480 fish in the second lake. D. There were 24 fish in the second lake.
250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Carol scored 85 points on the exam. In approximately what percentile of the class does this score place her?
A. 84th percentile B. 95th percentile C. 34th percentile D. 68th percentile E. none of these