Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Answer: D
Mathematics
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Write sigma notation.
+ 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the expression.sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the function.f(x) = ln 
A. x > 7 B. x > -7 C. x > 1 D. x > 0
Mathematics
Solve.The area code for a phone number in a city can be either 813 or 218. The rest of the 7-digit phone number can be formed with the digits 0 through 9. How many phone numbers can the city have before it needs to have another area code?
A. 18,000 B. 1,000,000 C. 130,000 D. 20,000,000
Mathematics