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LiRa [457]
3 years ago
9

How do you do this question?

Mathematics
1 answer:
katovenus [111]3 years ago
8 0
<h3>4 Answers: A, C, E, and F</h3>

================================================

Explanation:

Choice A is true assuming we have a_n = (-1)^n*b_n

In this case, a_n = (-1)^n*\frac{1}{\sqrt{n}} and b_n = \frac{1}{\sqrt{n}}

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Choice B is false. See choice A above.

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Choice C is true. The sequence \{b_n\} is decreasing. As n gets larger, b_n gets smaller. This is because the denominator is growing larger with the numerator held constant.

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Choice D is false. This contradicts choice C.

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Choice E is true since the denominator is growing forever

This is similar to  \displaystyle \lim_{n \to \infty} \frac{1}{n} = 0

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Choice F is true due to choices C and E being true.  

--------

Choice G is false because it contradicts choice F.

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Original Equation:8 - 7x^2 + 3 = 4x^2 - 1Frist step:11 - 7x^2 = -4x^2 - 1Which property justifies the first step?A. Division pro
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8 - 7x^2 + 3 = 4x^2 - 1

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What are the numbers that are divisible by three
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2 years ago
At the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults. What is the ratio of adults to boys at the school da
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14 to 132

Step-by-step explanation:

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8 0
2 years ago
1 1/5 + 3/4 - (-3 3/5) - (-2 1/4)
babymother [125]

Step-by-step explanation:

= 1 \frac{1}{5}  +  \frac{3}{4}  - ( - 3 \frac{3}{5} ) - ( - 2 \frac{1}{4} )

= 1 \frac{1}{5}  +  \frac{3}{4}  + 3 \frac{3}{5}  + 2 \frac{1}{4}

= (1 + 3 + 2) + ( \frac{1}{5} +  \frac{3}{4} +  \frac{3}{5}   +  \frac{1}{4}  )

= 6 + ( \frac{4 + 15 + 12 + 5}{20} )

=  6 +  \frac{36}{20}

= 1 + 6 +  \frac{16}{20}

= 7 +   \frac{4}{5}

= 7 \frac{4}{5}

8 0
2 years ago
Read 2 more answers
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