Convert the given equation to a rectangular equation.r = 
A. 16x2 + 15y2 - 16y - 64 = 0
B. 15x2 + 16y2 - 64 = 0
C. 15x2 + 16y2 - 16x - 64 = 0
D. 16x2 + 16y2 - 16x - 64 = 0
Answer: C
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Translate the problem to a system of equations, then solve using matrices.Candy and Delvis are riding bicycles in the same direction. Candy rides at a speed of 3 miles per hour, and Delvis rides at a speed of 9 miles per hour. If they started at the same place (and at the same time), then after 5 hours what is the distance between them?
A. 39 miles B. 30 miles C. 27 miles D. 31 miles
Solve the problem.What is the difference between a daytime temperature of 16° F and a nighttime temperature of -7° F?
A. 9°F B. -23°F C. 23°F D. -9°F
Find the product, if possible.
A. 
B. 
C. 
D. Not defined
Write the expression in lowest terms.
A. 
B. - 
C. 
D. 