Solve the given third- or fourth-order differential equation.D4y - 25 D2y + 144y = 0
A. y = c1e4x + c2e-4x + c3e3x + c4e-3x
B. y = c1e4x + c2e3x
C. y = c1 + c2e-4x + c3e3x + c4e-3x
D. y = c1e-4x + c2e-3x
Answer: A
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A. Not a statement. This cannot be answered true or false. B. Statement. The truth value is false for all x-values. C. Statement. The truth value is true when x is 6 and false for any other x-value.
Determine if the given value is a solution to the equation.4m - 2 = - 37 - 3m; m = -5
A. Yes B. No
Solve the inequality algebraically.3.7x + 9.7 ? 19.32
A. x ? 2.6 B. x ? -2.6 C. x ? 2.6 D. x ? -2.6
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