Find the unknown length in the right triangle. 
A. c = 40 km
B. c = 19 km
C. c = 20 km
D. c = 14 km
Answer: C
Mathematics
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Solve the problem.Find the centroid of the region cut from the fourth quadrant by the circle x2 + y2 = 16.
A. 
= - 
, 
= 
B. 
= 
, 
= - 
C. 
= 
, 
= - 
D. 
= 
, 
= - 
Mathematics
Find the distance d(A, B) between the points A and B.A = (4, 2); B = (1, 6)
A. 10 B. 25 C. 5 D. 6
Mathematics
Rewrite the statement so the inequality symbol points in the opposite direction.36 > 4
A. 36 ? 4 B. 36 < 4 C. 4 > 36 D. 4 < 36
Mathematics
Solve the problem.Two friends decide to meet in Chicago to attend a Cub's baseball game. Rob travels 
in the same time that Carl travels 
Rob's trip uses more interstate highways and he can average 
more than Carl. What is Rob's average speed?
A. 58 mph B. 63 mph C. 53 mph D. 54 mph
Mathematics