Use the method of undetermined coefficients to solve the differential equation.y'' - 1y' - 12y = -12ex, y = 6, y' = 14 when x = 0
A. y = e4x + 4e-3x + ex
B. y = 4e4x + e-3x + ex
C. y = 4e4x + e3x + ex
D. y = e-4x + 4e3x + ex
Answer: B
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Solve the problem.To get a B in biology, Katie must have a mean score of 81 on five lab reports. Scores on the first four lab reports were 92, 77, 79, and 82. What is the lowest score that Katie can get on the last lab report and still receive a B?
A. 71 B. 83 C. 82 D. 75
The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
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What will be an ideal response?
Solve the problem.The length of the diagonal of a rectangle is given by 
where L and W are the length and width of the rectangle. What is the length of the diagonal, D, of a rectangle that is 83 inches long and 72 inches wide? Round your answer to the nearest tenth of an inch, if necessary.
A. 109.9 inches B. 12.4 inches C. 77.3 inches D. 41.3 inches
Use the multiplication principle to solve the equation.- 
m = 
A. 
B. - 
C. - 
D. 