Simplify by combining like terms. 5c/6 – c/6

A) 5c – 1 / 6
B) 5c/7
C) c/2
D) 2c/3
E) c/3


D) 2c/3

Mathematics

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Describe the set of points (x, y, z) defined by the equation.z = 0

A. All points of the form (x, y, 0) B. All points of the form (x, 0, 0) C. All points of the form (0, y, 0) D. Only the point (0, 0, 0)

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Factor completely. If unfactorable, indicate that the polynomial is prime.27a4 - 75b2

A. 3(3a2 - 5b)2 B. prime C. 3(3a2 + 5b)2 D. 3(3a2 + 5b)(3a2 - 5b)

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Find the exact value of the expression or state that it does not exist.sin-1 

A.
B.
C.
D.

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Use a calculator to find the function value to four decimal places.cos 

A. -0.9239 B. -0.7203 C. 0.9705 D. 0.3827

Mathematics