Solve the problem.A police helicopter is monitoring the speed of two cars on a straight road. The helicopter is at an altitude of 4200 feet directly above the road. At one instant, the angle of elevation from the first car to the helicopter is 
and the angle of elevation from the second car to the helicopter is 
How far apart are the two cars to the nearest foot?
A. 657 feet
B. 5478 feet
C. 215 feet
D. 5780 feet
Answer: D
Mathematics
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Solve.The Spring City school system has 3983 high school students, 3565 middle school students, and 3735 elementary school students. How many total students are in the Spring City school system?
A. 11,191 B. 11,283 C. 11,338 D. 11,243
Mathematics
Solve.The second angle of a triangle is 3 times as large as the first. The third angle is 40° more than the first. Find the measure of the smallest angle.
A. 28° B. 40° C. 140° D. 50°
Mathematics
Write sigma notation.
+ 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. 
Mathematics
Write the expression in the standard form a + bi.i4
A. i B. -i C. 1 D. -1
Mathematics