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27-02-2018
Mathematics

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Find a8 in the arithmetic sequence with a1 = -7 And d = 0.5.

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Banabanana Banabanana

27-02-2018

[tex]a_1=-8 \\ d=0.5 \\ \\ a_n=a_1+d(n-1) \\ a_8=-8+0.5(8-1) \\ {} \ \ \ =-8+3.5 \\ {} \ \ \ \boxed{=-4.5}[/tex]

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