Simplify.9.493 ÷ (1 - 0.137) + 86.9 - 3.4 × 13

A. 353.7
B. 54.1
C. 17
D. 53.7


Answer: D

Mathematics

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Use Descartes's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation.7x3 - 7x2 + 9x + 4 = 0

A.


B.

C.


D.


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