Solve the system of equations using determinants.2x+ 3y = -194x = -21 - 6y

A. (2, 4)
B. (-2, -5)
C. (-2, 4)
D. no solution

Answer: D

Mathematics

Evaluate the integral.

A. ln 2
B.
C. ln
D. ln

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Mathematics

Solve the given differential equation. (The form of yp is given.)D2y + 6Dy + 5y = -5 + ex (Let yp = A + Bex.)

A. y = c₁e^-5x + c₂e^-x - 1 + e^x
B. y = c₁e^5x + c₂e^x - 1 + e^x
C. y = c₁e^-5x + c₂e^-x - 1 - e^x
D. y = c₁e^-5x + c₂e^-x + 1 + e^x

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Mathematics

Find the volume of the solid of revolution obtained by revolving the region bounded above by the curve

?

?
and below by the curve
?

?
from to about the -axis.

What will be an ideal response?

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Mathematics

Graph the function.y = -cot (?x)

A.

B.

C.

D.

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Mathematics