2 years ago

Plz help 10points :)

Mathematics

1 answer:

german2 years ago

3 0

Answer:

196608

Step-by-step explanation:

3, -12, 48, -192, ... is a geometric sequence with first term 3 and common ratio -4. Note that (-12)(-4) = 48, that (48)(-4) = -192, and so on. The general formula for a geom. seq. is a(n) = a(1)r^(n-1), where a(1) is the first term and r is the common ratio. In this particular case, we have

a(n) = 3*(-4)^(9-1) = 3*(-4)^8 = 3(65536) = 196608

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