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Tanya [424]
3 years ago
8

Tìm x biết: x+5x^2=0 x+1=(x+1)^2

Mathematics
1 answer:
Evgen [1.6K]3 years ago
8 0

Answer:

what type of question is this?

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The sum of all the positive terms in the geometric sequence 54, - 36, 24, - 16, ... is
Annette [7]

Answer:

  B.  97.2

Step-by-step explanation:

The sequence of positive terms is ...

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This sequence has first term 54 and common ratio 24/54 = 4/9. The sum of the infinite series is ...

  S = a1/(1 -r) = 54/(1 -4/9) = 54(9/5)

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2 years ago
A rectangular field is 15 yards in length and 66 feet width. What is the area of the field in square feet and the area of the fi
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4 years ago
Consider the sequence: 3, 9, 15, 21, 27, 33, 39 2 a(4)-a(1) is:
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