Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem. Assume all data are accurate to two significant digits unless greater accuracy is given.A company sold 9.5 million items in a two-year period. Sales increased by 700,000 the second year. How many were sold the second year?
A. 5,000,000 B. 5,100,000 C. 7,650,000 D. 4,400,000
Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.The graph shows the number of people in Country A without health insurance from year 0 through year 3. 
In year 0, there were 23 million people in Country A without health insurance. This number has increased at an average rate of 4.3 million people per year. In what year will the number of people without health insurance in Country A exceed the number in year 3 by 30.1 million?
A. year 9 B. year 12 C. year 11 D. year 10
Determine whether the given equation is the general solution or a particular solution of the given differential equation.
+ 4y = 0, y = c1 sin 2x + c2 cos 2x
A. General solution B. Particular solution
Solve the equation. Express radicals in simplest form.(2x + 3)2 = 25
A. 0, 1 B. 14, -14 C. 1, 4 D. 1, -4