Write a quadratic equation having the given numbers as solutions.8i, -8i
A. x2 + 64 = 0
B. x2 - 64 = 0
C. x2 + 64i = 0
D. x2 - 16ix + 64 = 0
Answer: A
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Factor completely.8x8 - 20x6 - 12x4 - 20x3
A. x3(8x5 - 20x3 - 12x - 20) B. 4(2x8 - 5x6) - x3(12x + 20) C. 4x6(2x2 - 5) - 4x3(3x - 5) D. 4x3(2x5 - 5x3 - 3x - 5)
Round the whole number to the given place value.65,204 to the nearest thousand
A. 75,000 B. 65,100 C. 66,000 D. 65,000
Calculate the mean of the set of data values. If necessary, round to one more decimal place than the data values have. The amounts spent on books by six college students: $216.45, $296.63, $238.75, $203.88, 
, 
Round your answer to the nearest cent.
A. $340.03 B. $260.02 C. $226.69 D. $272.02
Solve the system of equations by substitution, if a solution exists.
A. x = 1, y = -3 B. No solution C. x = -3, y = 1 D. x = 0, y = -2