Solve.How many different ways can a president, vice-president, secretary, and treasurer be chosen from a club with 10 members?

A. 24
B. 210
C. 40
D. 5040


Answer: D

Mathematics

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Change the Cartesian integral to an equivalent polar integral, and then evaluate.

A. ?
B. ?
C. ?
D. ?

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Insert ? or ? in the blank to make the statement true.?  {6, 9, 13, 0, 10, 14}

A. ? B. ?

Mathematics

Divide. 

A. 0.00969 B. 0.000969 C. 969 D. 0.0000969

Mathematics

Find the vertices and the foci of the given ellipse.9x2 + 64y2 = 576

A. V: (0, -9), (0, 9)
F: (0, -3), (0, 3)
B. V: (-8, 0), (8, 0);
F: (- , 0), (, 0)
C. V: (0, -8), (0, 8)
F: (0, - ), (0, )
D. V: (-64, 0), (64, 0); 
F: (-8, 0), (8, 0)

Mathematics