Suppose that lines r and s are both perpendicular to line t. Then r is parallel to s if:
A. r and s are collinear
B. r and s intersect
C. r and s are coplanar
D. None of These
Answer: C
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B.
C.
D.
E.
Write a system of equations for the problem, and then solve the system.Two trains start from towns 572miles apart and travel toward each other on parallel tracks. They pass each other 5.5 hours later. If one train travels 18 mph faster than the other, find the speed of each train.
A. 63 mph; 41 mph B. 61 mph; 43mph C. 51 mph; 53 mph D. 56 mph; 48 mph
Use addition, subtraction, or multiplication to solve the problem.There are 14,803 freshmen and 10,358 sophomores enrolled at Lincoln Community Junior College. What is the total enrollment?
A. 25,161 students B. 25,261 students C. 5545 students D. 4445 students
Graph the hyperbola, the asymptotes, and the vertices of the fundamental rectangle.y2 - 
= 1
A. 
B. 
C. 
D. 