For the given functions f and g, find the requested function and state its domain.f(x) = 
; g(x) = 2x - 7Find 
.
A. 
(x) = 
; (-?, 0) or (0, ?)
B. 
(x) = 
; [0, ?)
C. 
(x) = 
; 
or 
D. 
(x) = 
; 
or 
Answer: D
Mathematics
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Change the improper fraction into a mixed number.
A. 2
B. 4
C. 3
D. 3
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Graph the function.y = 
sin 
A. 
B. 
C. 
D. 
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Solve. Give an exact answer unless indicated otherwise.sin (cos-1 2x) + cos (sin-1 2x) = 1
A. x = ± 
B. x = 0
C. x = 1
D. x = ± 
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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.an = an-1 - 4, a1 = 32
A. an = 32n + 36, a20 = 676 B. an = 28n + 32, a20 = 592 C. an = -4n + 36, a20 = -44 D. an = -4n + 28, a20 = -52
Mathematics