AIR MATH

Math Question

Which choice is the explicit formula for the following geometric sequence? \( 0.2,-0.06,0.018,-0.0054,0.00162, \ldots \) A. \( a_{n}=-0.3(0.2)^{(n-1)} \) B. \( a_{n}=0.2(0.3)^{n} \) C. \( a_{n}=0.2(-0.3)^{(n-1)} \) D. \( a_{n}=-0.2(-0.3)^{(n-1)} \) E. \( a_{n}=0.3(-0.2)^{(n-1)} \)

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