Solve the given third- or fourth-order differential equation.D4y - 2 D3y - 9 D2y + 18 Dy = 0
A. y = c1 + c2e3x + c3e-3x+ c4e2x
B. y = c1 + c2e3x + c3e-3x + c4e-2x
C. y = c1e3x + c2e-3x+ c3e-2x
D. y = c1e3x + c2e-3x + c3e-2x
Answer: A
Mathematics
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+ 3 = 7
A. no solution
B. x = - 
, - 
C. x = - 
, - 
D. x = - 
, - 
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Solve.To find the distance AB across a river, a distance BC of 1234 m is laid off on one side of the river. It is found that angle ABC = 115.9° and 
Find AB.
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Provide an appropriate response.The roots of (x - 1)(x + 2) = 10 are
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Write an inequality using the variable x that corresponds to the set graphed on the number line.
A. x ? -4 B. x > -4 C. x < -4 D. x ? -4
Mathematics