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Lemur [1.5K]
2 years ago
12

Heston found the opposite of a number to be negative 4.2. What is the number?

Mathematics
1 answer:
Daniel [21]2 years ago
6 0
Um 4.2 maybe since -4.2 and 4.2 or on the opposite scale
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Which of the following payroll deductions is required by law?
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How do you do this question?
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Answer:

∑ (-1)ⁿ⁺³ 1 / (n^½)

∑ (-1)³ⁿ 1 / (8 + n)

Step-by-step explanation:

If ∑ an is convergent and ∑│an│is divergent, then the series is conditionally convergent.

Option A: (-1)²ⁿ is always +1.  So an =│an│and both series converge (absolutely convergent).

Option B: bn = 1 / (n^⁹/₈) is a p series with p > 1, so both an and │an│converge (absolutely convergent).

Option C: an = 1 / n³ isn't an alternating series.  So an =│an│and both series converge (p series with p > 1).  This is absolutely convergent.

Option D: bn = 1 / (n^½) is a p series with p = ½, so this is a diverging series.  Since lim(n→∞) bn = 0, and bn is decreasing, then an converges.  So this is conditionally convergent.

Option E: (-1)³ⁿ = (-1)²ⁿ (-1)ⁿ = (-1)ⁿ, so this is an alternating series.  bn = 1 / (8 + n), which diverges.  Since lim(n→∞) bn = 0, and bn is decreasing, then an converges.  So this is conditionally convergent.

5 0
3 years ago
Teague is participating in a 50K run to raise money for a charity. He has already raised $102 and will receive $1.40 for each ki
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Step-by-step explanation:

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Solve: 63 = 1.4k, so k = 45

Final answer: 45 kilometers

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Answer:

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To find the perimeter of SOW, what we need to do is to add all the lengths around the triangle together.

But we only have OS, we do not have OW and WS. Thus , we need to get what the values of these lengths are before we can calculate the perimeter.

Please check the attachment for complete solution.

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2 years ago
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