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2 years ago

PLEASE HELP!! What are the explicit equation and domain for a geometric sequence with the first term of 3 a second term of -9?

Mathematics

2 answers:

frutty [35]2 years ago

4 0

Answer:

The correct answer is c.

Dmitriy789 [7]2 years ago

3 0

Answer:

the third option

Step-by-step explanation:

a1 = 3

a2 = -9

as a geometric sequence every sequence item is created by multiplying a constant factor with the previous item.

what do I need to multiply 3 with to get -9 ? right, -3.

so, the first 2 options are out, because they multiply with -12.

and we can accept only n>=1, because there is no a0. it starts with a1.

ah only the third option is right.

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mote1985 [20]

Answer:

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Step-by-step explanation:

goal: (y-k)^2=4p(x-h)

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3 years ago

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