Find the exact value of the expression.cos 

A. ( - 1)
B. - 
C.
D. -( - 1)

Answer: C

Mathematics

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Find the derivative of the function at the given point in the direction of A.    

A. - 
B. - 
C. - 
D. - 

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Mathematics

Solve the system by either elimination or substitution. Verify your work by using "intersect" on your graphing calculator of by checking that your result satisfies both equations of the system.x - y = 3x + y = 3

A. empty set solution; inconsistent system
B.
C.
D.

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Mathematics

Evaluate the exponential expression.122 

A. 4096 B. 169 C. 144 D. 24

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Mathematics

Simplify. Assume variables represent nonnegative values.

A. 5k7q8 
B. 5k3q4 
C. 5k3q4 
D. 5k2q4 

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Mathematics