Evaluate.815/4
A. 243
B. 19,683
C. 6561
D. 2187
Answer: A
Mathematics
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Obtain the Cartesian equation of the curve by eliminating the parameter.x = 5 tan ?, y = 4 cot ?
A. y = 
cos x
B. 
= 20
C. xy = 20
D. y = 
sin x
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Solve the equation.(y - 5)2 - (3y + 4)2 = 0
A. - 
B. - 
, - 9
C. - 
, 
D. 9, -1
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.If B ? A, n(B) = n(A - B).
A. True B. False
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Use the graph to solve the equation or inequality. If appropriate, write your answer in interval notation.y1 > 3
A. [-1, 2] B. (-?, -1) ? (2, ?) C. (-?, -1] ? [2, ?) D. (-1, 2)
Mathematics