Divide.-8.1 ÷ 0.09

A. -9
B. -80.1
C. -90
D. -8.01


Answer: C

Mathematics

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Factor completely. If unfactorable, indicate that the polynomial is prime.125x2 - 200xy + 80y2

A. 5( x - 4y)(x + 4y ) B. 5(5x + 4y)2 C. 5(25x2 - 40xy + 16y2) D. 5(5x - 4y)2

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In work with alternating current, complex numbers are used to describe current I, voltage E, and impedance Z. These three quantities are related by the equation E = IZ. Solve the equation E = IZ for the missing variable.Z = 9 + 4i, E = 25 + 48i

A. I =  +  i
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C. I =  +  i
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Divide.

A. 14 B. 0.4 C. 1.4 D. 4

Mathematics