Solve the equation for all complex solutions, giving exact forms in your solution set.-2x4 + 6x3 + 14x2 - 54x + 36 = 0
A. {-3, -1, -2}
B. {3, -3, 1, -1}
C. {3, 1, -1, 2}
D. {3, 1, 2, -3}
Answer: D
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A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.cosh x = 
, x < 0, coth x =
A. - 
B. 
C. - 
D. - 
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. Use the graph to answer the question.
At what time was the temperature 72°?
A. 9 a.m. and 10 a.m. B. 10 a.m. C. 6 p.m. D. 9 a.m.
Provide an appropriate response.Because x2 + 10x + 24 = (x + 4)(x + 6), z4 + 10z2 + 24 = 
.
A. (z2 - 4)(z2 - 6) B. (z2 + 4)(z2 + 6) C. (z + 4)(z + 6) D. (z - 4)(z - 6)
Solve by using the simplex method.Minimize3x1+ 3x2+ 2x3subject to-2x1+x3?? -122x1+ x2? 20-x1+ x2+ 2x3? 24and x1 ? 0, x2 ? 0, x3 ? 0
A. Minimum = 44 when x1 = 4, x2 = 8, and x3 = 4 B. Minimum = 42 when x1 = 6, x2 = 8, and x3 = 0 C. Minimum = 40 when x1 = 6, x2 = 6, and x3 = 2 D. Minimum = 36 when x1 = 6, x2 = 6, and x3 = 0