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10 October, 18:45

What is the value of the fourth term in a geometric sequence for which a1=10 and r=0.5

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  1. 10 October, 20:14
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    A2 = a1 * r

    a2 = 10 *.5 = 5

    a3 = a2 * r

    a3 = 5 *.5 = 2.5

    a4 = a3 * r

    a4 = 2.5 *.5 = 1.25

    the answer is 1.25
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