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Write the explicit formula for the sequence, and use to evaluate for the given term.

Write The Explicit Formula For The Sequence And Use To Evaluate For The Given Term class=

Sagot :

72781

aₙ=a₁+d(n-1)

aₙ= -20 + 1/2(n-1)

a₉= -20 + 1/2(9-1)

  = -20 + 1/2(8)

   = -20 + 4

  = -16

Step-by-step explanation:

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