Evaluate.11 + 11 ? 22 - (-26)

A. 70
B. 227
C. 279
D. 510


Answer: C

Mathematics

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Solve the given differential equation.D4y + 5 D3y - 9 D2y - 45 Dy = 0

A. y = C1 + C2e3x + C3e-3x+ C4e-5x B. y = C1 + C2e3x + C3e-3x + C4e5x  C. y = C1e3x + C2e-3x + C3e5x  D. y = C1e3x + C2e-3x+ C3e5x

Mathematics

Integrate the function.

A. tan-1 2x -  + C
B. ln  + C
C.  + C
D.  tan-1 2x +  + C

Mathematics

Find an expression equivalent to the given expression. cosh u, where u is a function of x

A. sinh u 
B. sinh u
C. -sinh u 
D. cosh u 

Mathematics

Find the volume of the solid. Use  for ?.Use  for ?.

A. 12 cu ft
B. 1 cu ft
C. 8 cu ft
D. 4 cu ft

Mathematics