Solve for x. Assume that a and b represent positive real numbers.x2 - b = 0
A. 
B. {b, -b}
C. {b}
D. 
Answer: D
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Find the area or volume.Find the volume of the solid generated by revolving the region under the curve 
in the first quadrant about the y-axis.
A. 4?3 B. 4? C. 16? D. 2?
Solve the problem.Suppose you saw an advertisement in the newspaper for a financial planner who was recommending a certificate of deposit that paid 5.5% interest compounded quarterly. In the fine print at the bottom of the advertisement, it stated that the APY on the CD was 
Was this advertisement accurate?
A. Yes B. No
Provide an appropriate response.A cylinder has a height that is 3 times as long as the radius.(a)Write the area of its circular base as a function of its radius.(b)Write the volume of the cylinder as a function of its radius.(c)Without simplifying, write the ratio of the area of the circular base and the volume of the cylinder as a function of the radius.(d)Simplify the function you wrote in c.(e)What kind of function is this?(f)What is its domain out of context?(g)What is its domain in the given context?
What will be an ideal response?
Solve the problem.Some people must eat a low-sodium diet with no more than 2000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cookie, a person would ingest 149 mg of sodium. If a person ate 8 pretzels and 8 cookies, he or she would ingest 936 mg of sodium. By eating 6 crackers and 7 pretzels, a person would take in 535 mg of sodium. Which of the following statements is true?
A. A cookie contains 71 mg of sodium. B. A pretzel contains 49 mg of sodium. C. A cracker contains more sodium than a cookie D. A cracker contains 30 mg of sodium.