Find the absolute value.|-21|

A. 21
B. 0
C. -21
D. ±21


Answer: A

Mathematics

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Find the most general antiderivative. dx

A. e2x + 8e-x + C
B. e2x + 8e-x + C
C. e2x + e-x + C
D. e2x - 8e-x + C

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Use your graphing calculator to graph the given function. Then provide an appropriate response.Graph f(x) = log2 x. Determine the x-intercept.

A. (2, 0) B. (0, 0) C. (1, 0) D. (0, 2)

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Convert as indicated. Express the answer in decimal form when needed.300 seconds to minutes

A. 12 min B. 2 min C. 9 min  D. 5 min

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Solve the problem.Encode the following message: We will returnBreak the message into groups of two letters and use the matrix M = 

A.  ,  , ,   ,  ,  
B.  ,  ,  ,  ,  , 
C.  ,  ,  ,  ,  , 
D.  ,  ,  ,  ,  , 

Mathematics