Find the root. Assume that all variables represent nonnegative real numbers. 

A. x8
B. 8x
C. x9
D. x4

Answer: A

Mathematics

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Find all real numbers in [0, 2?] that satisfy the equation.2 cos x + 1 = 0

A.
B. , 
C. , 
D. , 

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Perform the indicated operation.40 - 0.0972 + (-0.5)

A. 40.0028 B. 39.9028 C. 39.4028 D. 40.0972

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Find all zeros of the function and write the polynomial as a product of linear factors.f(x) = x3 - x2 + 16x - 16

A. f(x) = (x - 25)(x + i)(x - i) B. f(x) = (x - 1)(x + 4i)(x - 4i) C. f(x) = (x - 1)(x + 4)(x - 4) D. f(x) = (x - 1)(x + 1)(x + 16)

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Test the equation for symmetry with respect to the x-axis, the y-axis, and the origin.4x = 4y2 + 4

A. x-axis, y-axis, origin B. origin only C. x-axis only D. y-axis only

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