Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.x2 + x + 5 = 0
A. x = 
B. x = 
C. x = 
D. x = 
Answer: B
Mathematics
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Solve.5x3 + x2 - 5x - 1 = 0
A. -1 , 5
B. 1 , 
C. 1 , -1 , - 
D. 1 , -1
Mathematics
Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Find the sum.-12 + (-10) + (-8) + (-5)
A. 9 B. -11 C. 5 D. -35
Mathematics
Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: {2, 4}, Range: (-? -3) ? [4, ?)
B. f(x) = 
; Domain: {2, 4}, Range: (-? -3] ? (4, ?)
C. f(x) = 
; Domain: (-? -3] ? (4, ?), Range: {2, 4}
D. f(x) = 
; Domain: (-? -3) ? [4, ?), Range: {2, 4}
Mathematics