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andrew-mc [135]
3 years ago
6

Math help no guesses how do u solve it plz

Mathematics
2 answers:
Gala2k [10]3 years ago
7 0

Answer:

  see below

Step-by-step explanation:

You want terms that have a common ratio of 3, so the term in the summation will be 3 to some power. Only the first expression matches that requirement.

You can try different values of n to see if they fit the problem description.

  n = 1: 1(3)^0 = 1(1) = 1

  n = 2: 1(3)^1 = 1(3) = 3

  n = 3: 1(3)^2 = 1(9) = 9 . . . . . the third triangle in the set has 9 shaded triangles, as this expression predicts. Thus, we see the problem description being matched by <em>the first answer choice shown</em>.

masha68 [24]3 years ago
5 0

Answer:

A

Step-by-step explanation:

egde 2020

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Answer:

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