Perform the matrix operation.Given A =  and B =  , find A + B.

A.

B.

C.

D. Not defined

Answer: B

Mathematics

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Find the exact value of the expression.cos  cos  + sin  sin 

A. 1
B.
C.
D.

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Write in expanded notation.5147

A. 5,147,000 B. 5000 + 100 + 40 + 7 C. 500 + 40 + 1 D. 7000 + 400 + 10 + 5

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Factor, if possible.y6 - 8

A. (y2 + 2)(y4 - 2y2 + 4) B. (y2 - 2)(y4 - 2y2 + 4) C. cannot be factored D. (y2 - 2)(y4 + 2y2 + 4)

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Mathematics

Find the equation of the circle in standard form, and then identify its center and radius. ? ?

A.

Center:

Radius: 1


B.

Center:

Radius: 1


C.

Center:

Radius: -1


D.

Center:

Radius: 1


E.

Center:

Radius: 1


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Mathematics