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Marianna [84]
3 years ago
12

Tried to solve but failed ​

Mathematics
1 answer:
WARRIOR [948]3 years ago
8 0

Try suggested solution, note, the answers are marked with green colour.

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Find the infinite sum of 10,5,2.5,1.25...
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Notice this is a geometric progression since each number multiplied by some factor equals the next number in the sequence, in this case,

10 \times r = 5 \Rightarrow r=0.5

Then by applying the formula for sum to infinity of a geometric progression,
S_\infty = \frac{a}{1-r} = \frac{10}{1-0.5} = 20
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3 years ago
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1. Which of the following is not an equation?
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Answer:

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Step-by-step explanation:

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13. Which system of inequalities has no solution?
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Answer:

Option A

Step-by-step explanation:

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3 years ago
Please help me<br><br> It’s probability
kirill115 [55]

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32% or 8/25

Step-by-step explanation:

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Simplify completely<br> -9x^3y^2(-13x^2y^5)
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<h2>117 x ^5 y^ 7</h2>

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