Use the definition of a logarithm to prove .
? 

A. By the definition  means .
B. By the definition  means .
C. By the definition  means .

Answer: A

Mathematics

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Describe the largest set S on which it is correct to say that f is continuous.f(x, y) = tan (x + y) 

A. Entire plane
B. {(x, y): x + y ?  , where n is an integer}
C. {(x, y): (x, y) ? (0, 0)}
D. {(x, y): (x, y) ?  }

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Mathematics

The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by an - rbr. Find the specified term.The 5th term of (5x + 3)5.

A. 2025x  B. 675x  C. 3375x2 D. 1215 

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Mathematics

Find the area of the geometric figure. Use 3.14 for ?.

A. 43.96 in.2 B. 21.98 in.2 C. 615.44 in.2 D. 153.86 in.2

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Mathematics

Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?

A. $0.75 B. $2.00 C. -$3.00 D. $3.00

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Mathematics