Determine the real solutions to the system of nonlinear equations.xy = 0x + y = -9
A. (-9, 0), (0, 9)
B. (9, 0), (0, -9)
C. (9, 0), (0, 9)
D. (-9, 0), (0, -9)
Answer: D
Mathematics
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Assume that the sequence converges and find its limit.a1 = 8, an + 1 = 
A. -8 B. 64 C. 1 D. 8
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Find the exact value of the logarithmic expression.log1/5 25
A. 2
B. 
C. - 
D. -2
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The function f is one-to-one. Find its inverse.f(x) = 8x2 - 4, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = - 
D. f-1(x) = 
Mathematics
Mentally estimate the sum by rounding each number to the first digit. 
A. 11,850 B. 12,100 C. 12,110 D. 12,102
Mathematics