Find the requested probability.If P(A ? B) = 0.64, P(A) = 0.31, and P(B) = 0.49, find P(A ? B).

A. 0.57
B. 0.28
C. 0.16
D. 0.12


Answer: C

Mathematics

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Perform the indicated operation.(-6x3 + 9x2 + 4) - (-5x3 + 2x - 5)

A. -11x3 + 9x2 + 2x - 1 B. -x6 + 9x4 - 2x2 + 9 C. -x3 + 9x2 + 2x - 1 D. -x3 + 9x2 - 2x + 9

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Identify the type of surface represented by the given equation.  +  = 

A. Elliptical paraboloid
B. Elliptical cone
C. Hyperbolic paraboloid
D.

Ellipsoid

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Find the linearization L(x) of f(x) at x = a.f(x) = 3x2 + 2x + 2, a = 3

A. L(x) = 20x - 25 B. L(x) = 16x + 29 C. L(x) = 20x + 29 D. L(x) = 16x - 25

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Find the inverse of the matrix, if possible.A = 

A.

B.

C.

D.
 

Mathematics