Simplify.
A. 3
B. 3
C. 3
D. 9
Answer: A
You might also like to view...
Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 786. Find a linear equation which fits this data, and use this equation to predict an average score for persons taking a 41-hour review course. Round your answer to the tenths place.
A. 669.9 B. 679.7 C. 665.7 D. 658.4
Solve the problem.The concentration of a certain drug in the bloodstream t minutes after swallowing a pill containing the drug can be approximated using the equation 
where C(t) is the concentration in arbitrary units and t is in minutes. Find the rate of change of concentration with respect to time at t = 6 minutes.
A. - 
units/min
B. - 
units/min
C. - 
units/min
D. - 
units/min
The scores of students on a standardized test form a normal distribution with a mean of 300 and a standard deviation of 40. What fraction of the students scored less than 320?
What will be an ideal response?
Rationalize the denominator and, if possible, simplify to form an equivalent expression.
A. 
B. 
- 
C. 
D. 