Find the conjugate of each complex number.-1 - j
A. -1 + j
B. No conjugate.
C. 1 - j
D. 1 + j
Answer: A
Mathematics
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Solve the equation.x(x - 1) = 20
A. {-4, -5} B. {-4, 5} C. {4, -5} D. {4, 5}
Mathematics
Write as a percent.
A. 65% B. 0.065% C. 0.65% D. 6.5%
Mathematics
Convert the angle in radians to degrees.
A. 309?° B. 105° C. 154° D. 210°
Mathematics
Find the minimum value of the objective function and where it occurs, subject to the constraints: ? Objective function: ? z = 4x + 16y ? Constraints: ? x ? 0 y ? 0 x + 4y ? 20 x + y ? 18 ?2x + 2y ? 21 ?
A. Minimum at 
: 
B. Minimum at 
: 
C. Minimum at (0, 0): 0
D. Minimum at 
: 80
E. No minimum
Mathematics