Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = x 
A. f-1(x) = x3 - 5
B. f-1(x) = x 
C. Not one-to-one
D. f-1(x) = x2 + 5
Answer: C
Mathematics
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Use Cramer's rule to solve the linear system.9x - 9y - z = -30 x - 5y - 6z = -41-8x + y + z = -8
A. (3, 3, 3) B. (2, 5, 3) C. (2, -5, -3) D. (5, 3, 5)
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.-4-2
A. -16
B. 
C. - 
D. 16
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