Find the period of the function. y = 5 cos x

A.
B.
C. 4?
D. 5


Answer: C

Mathematics

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Solve the equation using the square root property.x2 - 64 = 0

A. {8} B. {-8} C. {64} D. {-8, 8}

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Solve the problem.Find the sum of the arithmetic progression11 + 13 + . . . + 901

A. 203,376 B. 181,476 C. 202,475 D. 203,401

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Factor the binomial completely.m2x2 - 1

A. (mx + 1)2 B. (mx + 1)(mx - 1) C. (mx - 1)2 D. prime

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Find the vertices and foci of the given ellipse.4y2 = 52 - 13x2

A. Vertices: (, 0) and (-, 0);
 Foci: (3, 0) and (-3, 0)
B. Vertices: (, 0) and (-, 0);
 Foci: (4, 0) and (-4, 0)
C. Vertices: (0, 4) and (0, -4);
 Foci: (0, 3) and (0, -3)
D. Vertices: (0, ) and (0, -);
 Foci: (0, 3) and (0, -3)

Mathematics