Simplify the expression.y6 ? y12
A. y72
B. 2y18
C. y18
D. 2y72
Answer: C
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Find the inverse of the function.f(x) = 
A. f-1(x) = 
+ 8, x ? 0
B. f-1(x) = 
C. f-1(x) = 
2, x ? 0
D. f-1(x) = 
, x ? 0
Write the numeral as a Roman numeral.842
A. CCMXLII B. DCCCLXII C. DCCCXLII D. CMMXLII
Graph f as a solid line and f-1 as a dashed line in the same rectangular coordinate space. Use interval notation to give the domain and range of f and f-1.f(x) = (x - 5)2, x ? 5
A. 
Has no inverse
f domain = (-?, ?); range = (0, ?)
B. 
f domain = (-?, ?); range = (0, ?)
f-1 domain = (0, ?); range = (-?, ?)
C. 
f domain = (5, ?); range = (0, ?)
f-1 domain = (0, ?); range = (5, ?)
D. 
f domain = (-?, ?); range = (0, ?)
f-1 domain = (0, ?); range = (-?, ?)
Find a general term an for the arithmetic sequence.The first five terms of the sequence are 6.9, 7.4, 7.9, 8.4, 8.9.
A. an = 0.5n + 6.4 B. an = 0.4n + 6.4 C. an = 0.5n + 6.2 D. an = 0.5n + 6.9