Graph the function.y =log2x
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve.A sphere has a radius of 3 in. If the radius is decreased by x in., express the volume of the sphere as a function of x. What is the domain of V = f(x)?
A. V = 
?(x - 3)3: 0 ? x ? 3
B. V = 
?(3 - x)3: x ? 3
C. V = 
?(3 - x)3: 0 ? x < 3
D. V = 
?(3 - x)3: 0 < x < 3
Mathematics
Simplify the rational expression. If the rational expression cannot be simplified, so state. 
A. cannot be simplified
B. 
C. 3
D. 8
Mathematics
Solve the problem.The number of patients Dr. Wong can see varies directly as the time it takes her to see them. If she can see 9 patients in 2 hours, how long would it take her to see 90 patients?
A. 18 hours B. 20 hours C. 19 hours D. 405 hours
Mathematics
Multiply. Write a mixed numeral for the answer.2
? 3
A. 7
B. 6
C. 9
D. 7
Mathematics