Answer the question.Two cyclists leave Springfield, Illinois at the same time. One travels north at 12 miles per hour and the other travels west at 16 miles per hour. How far apart are they after 4 hours? (Hint: Use d = rt to find the distance traveled by each cyclist.)
16 mph
A. 77 miles
B. 80 miles
C. 90 miles
D. 85 miles
Answer: B
Mathematics
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Divide numerator and denominator by the highest power of x in the denominator to find the limit.
A. 
B. 0
C. ?
D. 
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Simplify.
A. 6.5x6yz3
B. 6.5x6z3
C. 13x6z3
D. 13x10z5
Mathematics
Solve the system by the substitution method.xy = 56x + y = -15
A. {(7, -8), (8, -7)} B. {(-7, 8), (-8, 7)} C. {(7, 8), (8, 7)} D. {(-7, -8), (-8, -7)}
Mathematics
Find the domain of the function.f(x) = 
A. {x|x ? 21}
B. {x|x ? 21}
C. {x|x ? 
}
D. {x|x ? 
}
Mathematics