Solve the problem.A boat can go 54 mph in still water. It takes as long to go 160 miles upstream as it does to go downstream 200 miles. How fast is the current?
A. 5 mph
B. 1 mph
C. 6 mph
D. 4 mph
Answer: C
Mathematics
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Find the ordered pair for the vertex.f(x) = 4x2 - 24x + 31
A. (-3, 5) B. (3, -5) C. (5, -3) D. (-5, 3)
Mathematics
Identify the fraction as proper or improper.
A. proper B. improper
Mathematics
Provide an appropriate response.Determine if the graph of the equation 
is a sphere, a hemisphere, a paraboloid, or none of these.
A. Hemisphere B. Paraboloid C. Sphere D. None of these
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
1/4
A. 
B. xy
C. xy2
D. xy1/2
Mathematics