Solve the system using Cramer's Rule. If D = 0, use another method to complete the solution.6x + 8y = -16-4x - 2y = 4
A. {(0, -1)}
B. {(0, -2)}
C. {(-1, -1)}
D. ?
Answer: B
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Determine the degree of the polynomial.-15 - 2x - 4x2 - 18x3 - 17x4
A. -13 B. -17 C. 4 D. 21
Find all solutions of the equation. Leave answers in trigonometric form.x4 + 16 = 0
A. {
cis 45°, 
cis 315°, 
cis 135°, 
cis 225°}
B. {16 cis 45°, 16 cis 315°, 16 cis 135°, 16 cis 225°}
C. {
cis 26.565°, 
cis 333.435°, 
cis 153.435°, 
cis 206.565°}
D. {2 cis 45°, 2 cis 315°, 2 cis 135°, 2 cis 225°}
Multiply. Write the answer in lowest terms.2 ? 
A. 
B. 
C. 
D. 
Provide an appropriate response.If a fraction simplifies to 1, what, if anything can you conclude about its numerator and denominator?
A. The numerator can be anything, the denominator is 1. B. The numerator is smaller than the denominator. C. The numerator is 1, the denominator can be anything. D. The numerator and denominator are equal.