Evaluate the exponential expression.121

A. 121
B. undefined
C. 1
D. 12

Answer: D

Mathematics

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A. -20y
B. -20y
C. -10y
D. 20y

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Make the required change in the given equation.z = x2 + y2  to cylindrical coordinates

A. r = cot ? csc ? B. z = r2(cos ? + sin ?) C. z = r2 D. r tan ? = 1

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Select from the list of numbers all that belong to the specified set.Real numbers4, , -2, 0, , , 

A. 4, -2, 0,  
B. 4, -2, 0, , 
C. 4, -2, 0, , 
D. 4, , -2, 0, , 

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Factor.49x2 - 28x + 4

A. (7x - 2)2 B. Prime C. (7x + 2)2 D. (7x - 2)(7x + 2)

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