Solve.x3 - 2x ? 24 - 5x2
A. [-2, ?)
B. (-?, -4] ? [-3, 2]
C. [-2, 2]
D. [-4, -3] ? [2, ?)
Answer: B
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Evaluate the integral using the given substitution.
, u = cot 3?
A. 
csc3 3? cot2 3? + C
B. 
cot2 ? + C
C. - 
cot2 3? + C
D. - 
tan2 3? + C
Find the domain and range.{(12,-9), (12,-8), (-8,6), (7,-4), (-1,5)}
A. domain = {6, -8, -4, 5, -9}; range = {-8, -8, 12, 7, -1} B. domain = {-8, 12, 7, -1}; range = {6, -8, -4, 5, -9} C. domain = {-8, -3, 12, 7, -1}; range = {6, -8, -4, 5, -9} D. domain = {-8, 13, 12, 7, -1}; range = {6, -8, -4, 5, -9}
Solve.A plane flying with a tailwind flew at a speed of 420 mph, relative to the ground. When flying against the tailwind, it flew at a speed of 300 mph. Express these relationships as equations. Let x represent the speed of the plane in calm air and let y represent the speed of the wind.
A. x + y = 420 y = 300 B. x + y = 300 x - y = 420 C. x + y = 300 y = 420 D. x + y = 420 x - y = 300
Solve the standard minimization problem using duality.
?
Minimize 
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subject to 
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__________
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__________
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__________
What will be an ideal response?