Rewrite the fractions using the least common denominator.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Answer: A
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Find the indicated series by the given operation.Find the first four nonzero terms of the expansion of the function 
by rearranging the expression to get 
where k is a constant, and adding k to the series for 
A. 3 - x + x2 - x3 + . . . B. 2 - x + x2 - x3 + . . . C. 1 - x + x2 - x3 + . . . D. 2 + x - x2 + x3 - . . .
Write the complex number in rectangular form using exact values if possible. Otherwise, round to one decimal place.-7
A. - 
+ 
i
B. - 
+ 
i
C. 
+ 
i
D. 
+ 
i
Write the inequality in interval notation.
A. (4, ?) B. (-?, ?] C. (-?, 4) D. (-?, -5]
Use the appropriate form of the percentage formula. Round division to the nearest hundredth if necessary.0.79% of what number is 23
A. 3.43 B. 343 C. 2911.39 D. 29,113.9