Solve the system of equations.3x + 2y + z = 33x - 5y - z = -362x + y + 4z = 7
A. {(-3, 2, 5)}
B. {(-3, 5, 2)}
C. ?
D. {(2, 5, -3)}
Answer: B
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Solve the problem.You decide to put in a large sidewalk around a garden which measures 6 feet by 9 feet. The dimensions of the combined sidewalk/garden are to be 18 feet. by 30 feet. What is the area of the sidewalk only?
A. 252 sq. ft B. 486 sq. ft C. 540 sq. ft D. 54 sq. ft
Solve the equation by completing the square.2x2 + 12x = - 7
A. 
B. 
C. 
D. 
Graph the equation.
?
?
A. ?
?
B. ?
C. ?
D. ?
E. ?
Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 25 seconds with an average speed of 6 feet per second. Find the average speed of the swimmer if it takes 50 seconds to finish the race.
A. 3 feet per second B. 4 feet per second C. 2 feet per second D. 5 feet per second