In a geometric sequence, as = 8 and a7 = 32. Use the geometric mean to find the value of a6​

Question

In a geometric sequence, as = 8 and a7 = 32.
Use the geometric mean to find the value of a6​

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Nevaeh 3 weeks 2021-10-01T09:20:57+00:00 1 Answer 0

Answers ( )

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    2021-10-01T09:22:18+00:00

    Answer:

    a6=16

    Step-by-step explanation:

    a5=8

    a7=32

    Let q be the ratio: a6=a5×q

    a7=a6×q=a6×(a6/a5)

    a7×a5=a6²

    a6=sqrt(a7×a5)=sqrt(32×8)=sqrt(256)=16

    a=16

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45:7+7-4:2-5:5*4+35:2 =? ( )