Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = 4x3 - 5x2 + x + 2

A. 3 or 1 positive zeros, 2 or 0 negative zeros
B. 2 or 0 positive zeros, no negative zeros
C. 3 or 1 positive zeros, 1 negative zero
D. 2 or 0 positive zeros, 1 negative zero


Answer: D

Mathematics

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A. 4 B. 25 C. 2 D. 3

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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) =  between x = 4 and x = 5 using an left sum with two rectangles of equal width.

A.
B.
C.
D.

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