Find the common ratior r for the geometric sequence and use r to find the next three terms. -3, 9, -27, 81,

Question

Find the common ratior r for the geometric sequence and use r to find
the next three terms. -3, 9, -27, 81,

in progress 0
Elliana 2 weeks 2021-09-08T22:07:42+00:00 2 Answers 0

Answers ( )

    0
    2021-09-08T22:09:05+00:00

    Answer:

    r = -3

    Step-by-step explanation:

    to find r divide the 2nd term by the first:

    9/ -3 = -3

    to check if this is the same ratio for each number divide it by the ratio to get the number before it:

    -27/ -3 = 9

    81/ -3 = 27

    to find the next three terms multiply the last number by the ratio then repeat

    (81)(-3) = -243

    (-243)(-3) = 729

    (729)(-3) = -2187

    0
    2021-09-08T22:09:12+00:00

    It happens to be 7 i think

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