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2 years ago

Suppose 8 books stacked on top of one another. Each book is 1 5/9 inches thick. How high is the stack of books?

Mathematics

1 answer:

Mekhanik [1.2K]2 years ago

8 0

Answer:

Step-by-step explanation:

12.4

you have to multiply 1 5/9 times 8

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Find a substance half-life in days. round your answer to the nearest tenths

jeka57 [31]

A 33 gram sample has k value of .1124
(Actually I think the problem SHOULD be worded: A 33 gram sample has k value of -.1124/days)

See attached graphic:
Half-Life = ln (.5) / k
Half-Life = -.693147 / -.1124/days
Half-Life = 6.1667882562 days

Source:
http://www.1728.org/halflif2.htm

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2 years ago

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Pavel [41]

Answer:

Step-by-step explanation:

c = 5(68-32)/9

c = 5(36)/9

c = 20

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2 years ago

2/5 of an hour (in minutes)?

Lena [83]

To convert hour into minute: (No. of hour × 60) minutes

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2 years ago

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Please help show work and I’ll give brainliest

shepuryov [24]

IDK if i have to explain again but
A. (-infinity, infinity)
B. (-infinity, -3]
C. (-infinity, -4)u(-4, 0)u(0, infinity)
those u's are the logic symbol

2. domain: [-6, -1)u(-1, 3]u [3, -infinity)
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2 years ago

Answer the question with explanation;

PSYCHO15rus [73]

Answer:

The statement in the question is wrong. The series actually diverges.

Step-by-step explanation:

We compute

$\lim_{n\to\infty}\frac{n^2}{(n+1)^2}=\lim_{n\to\infty}\left(\frac{n^2}{n^2+2n+1}\cdot\frac{1/n^2}{1/n^2}\right)=\lim_{n\to\infty}\frac1{1+2/n+1/n^2}=\frac1{1+0+0}=1\ne0$

Therefore, by the series divergence test, the series $\sum_{n=1}^\infty\frac{n^2}{(n+1)^2}$ diverges.

EDIT: To VectorFundament120, if $(x_n)_{n\in\mathbb N}$ is a sequence, both $\lim x_n$ and $\lim_{n\to\infty}x_n$ are common notation for its limit. The former is not wrong but I have switched to the latter if that helps.

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2 years ago

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