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28th term of -242, -251, -260
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2 votes
28th term of -242, -251, -260

User Johnwinter
by
8.4k points

1 Answer

4 votes

Answer:

-485

Explanation:

Formula

Givens

an = a28

n = 28

a1 = - 242

Solution

d = a3 - a2

d = -260 - - 251

d = -260 + 251

d = - 9

an = a1 + (n-1)d

an = -242 + (n - 1)(-9)

a28 = - 242 + 27*(-9)

a28 = - 242 - 243

a28 = - 485

User Denis Tulskiy
by
8.7k points
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