26-04-2017
Mathematics

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Find the first, fourth, and eight terms of the sequence: A(n)=-5•3n-1

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hannahl52 hannahl52

26-04-2017

A (1)= -5×3(1)-1

a(1)= -5×3-1

a (1)= -16

A(4)= -5×3(4)-1

a (4)= -5×12-1

a( 4) = -60-1

a(4)= -61

A(8)= -5×3(8)-1

a(8)= -5×24-1

a(8)= -120-1

a(8)= -121

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