Solve the equation.x4 - 31x2 - 180 = 0
A. {- 
, 
, -6i, 6i}
B. {-6, 6, -i
, i
}
C. {-36, 5}
D. {6, i
}
Answer: B
Mathematics
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A. a2 - 81 B. a2 - 18 C. a2 + 18a - 81 D. a2 - 18a - 81
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Provide an appropriate response.Perform the indicated operation, rationalize denominator, and simplify: 
Fill in the blank(s) with the appropriate word(s).
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For the given equation, find the vertex or vertices.r = 
A. 
B. 
, 
C. 
, 
D. 
, 
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Solve the problem.Bicycles are often on sale in September. The regular price of one bicycle is $255.95. With a 30% discount, what is the sale price of the bicycle? Round to the nearest cent.
A. $178.67 B. $76.29 C. $179.17 D. $76.79
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