Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 
, g(x) = 
A. (-?, 0) ? (0, 8) ? (8, ?)
B. (-?, 0) ? (0, ?)
C. (-?, 0) ? 
? 
D. 
? 
Answer: C
Mathematics
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Solve.26y2 - x2 = 1xy = 5
A.
| No real number solution exists. |
B. (5, 1)
C. (-5, -1)
D. (5, 1), (-5, -1)
Mathematics
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 
B. 
; 7
C. 
; 7
D. 
; 
Mathematics
Use the following chart to answer the question. Estimated population of four states from 1930 to 2010 (in millions)
What was the estimated population of state B in 1980?
A. 5,000,000 B. 5 C. 5,000,000,000 D. 500,000
Mathematics
Find the exact solutions to the quadratic equation, using a method of your choice.5x2 = -18x - 10
A. 
B. 
C. 
D. 
Mathematics