Find the LCD for the fractions in the list. , 

A. (x + 1)(x + 5)
B. (x - 1)(x - 5)(x + 6)
C. (x + 5)(x + 6)
D. (x + 1)(x + 5)(x + 6)


Answer: D

Mathematics

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Calculate the area of the surface S.S is the portion of the sphere x2 + y2 + z2 = 81 between z = -  and z = .

A. 9?
B. 81?
C. 162?
D. 162?

Mathematics

Solve the initial value problem. = sin (2x + ?), y(0) = 6

A. y = - cos (2x + ?) + 5
B. y = 2 cos (2x + ?) + 6
C. y = -  cos (2x + ?) + 6
D. y = -  cos (2x + ?) + 

Mathematics

Solve.The printed matter on a 18 by 22 centimeter page of a book must cover 96 square centimeters. If all margins are to be the same width, how wide should the margins be?

A. 5 cm B. 10 cm C. 6 cm D. 2 cm

Mathematics

Solve.x2 - x - 72 = 0

A. -8, 9 B. -8, -9 C. 1, 72 D. 8, 9

Mathematics