Rationalize the denominator.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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In one state lottery, anyone who picks the correct 7 numbers (in any order) wins. With the numbers 0 through 89 available, how many choices are possible? ?
A. 7,471,375,480 B. 7,471,375,552 C. 7,471,375,553 D. 7,471,375,560
Mathematics
Find the power series representation for f(x).f(x) = 
A. 1 + 4x + 
x2 + 12x3 + . . .
B. 4x + 
x2 + 4x3 + . . .
C. 1 + 4x + 
x2 + 4x3 + . . .
D. 4x + 
x2 + 12x3 + . . .
Mathematics
Use the given information to find the exact value of the trigonometric expression.sin ? = - 
; 
< ? < 2?
Find tan(2?).
A. 
B. - 
C. 
D. - 
Mathematics
Round as indicated.6171 to the nearest hundred
A. 6100 B. 6300 C. 6190 D. 6200
Mathematics