Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 5p2
Answer: A
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Use trial and error to factor the trinomial, or state that the trinomial is prime.16x2 + 24x + 9
A. (16x + 3)(x + 3) B. (4x + 3)(4x + 3) C. (4x - 3)(4x - 3) D. prime
Divide and reduce to lowest terms.
÷ 
A. 
B. 
C. 
D. 
Solve the problem.A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 140 lbs? 
A. 15.22 mg B. 14.5 mg C. 12.07 mg D. 19.48 mg
Solve the problem.Suppose that during the 1990s, the population of a certain country was increasing by 1.1% each year. If the population at the end of 1993 was 6.2 million, what was the population at the end of 1997? Round your answer to the nearest hundredth of a million.
A. 6.47 million B. 6.27 million C. 6.48 million D. 6.41 million