Use Cramer's rule to solve the system.2x = -2y + 25x = -y - 15
A. {(5, -4)}
B. {(-4, 5)}
C. {(-4, -5)}
D. {(-5, -4)}
Answer: B
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By calculating an appropriate number of terms, determine if the series converges or diverges. If it converges, find the limit L and the smallest integer N such that 
for 
otherwise indicate divergence.an = 
A. L = 0, N = 5
B. L = 
, N = 8
C. L = 
, N = 6
D. diverges
Solve for the unknown in the equation.3(B + 5) = 5B + 15
A. B = 30 B. B = 15 C. B = -15 D. B = 0
Use the Rational Zero Theorem to list all possible rational zeros for the given function.f(x) = 3x4 + 7x3 - 5x2 + 2x - 12
A. ±1, ± 2, ± 3, ± 6, ± 12, ± 
, ± 
, ± 
B. ± 1, ± 3, ± 
, ± 
, ± 
, ± 
, ± 
, ± 
, ± 
C. ±1, ± 2, ± 3, ± 4, ± 6, ± 12, ± 
, ± 
, ± 
, ± 
, ± 
, ± 
, ± 
D. ±1, ± 2, ± 3, ± 4, ± 6, ± 12, ± 
, ± 
, ± 
Solve.
= 
(x - 3)
A. 5
B. 
C. - 1
D. 