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3 years ago

12. How much more energy is released by an earthquake with a magnitude of 8.0

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

7 0

Answer:

Lets conside the order of magnitude
We have a different of 8.0- 6.0=2.0
An 8 magnitude has 63.09 ×10^15 joules
A 6 magnitude has 63.09×10^12 J
Which is 1000 times more energy
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Gennadij [26K]

Answer:

d≈3.5

Step-by-step explanation:

d= C/π =11/π≈3.50141

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3 years ago

Determine whether the following series converge or diverge

Mars2501 [29]

An alternating series $\sum\limits_n(-1)^na_n$ converges if $|(-1)^na_n|=|a_n|$ is monotonic and $a_n\to0$ as $n\to\infty$ . Here $a_n=\dfrac1{\ln(n+1)}$ .

Let $f(x)=\ln(x+1)$ . Then $f'(x)=\dfrac1{x+1}$ , which is positive for all $x>-1$ , so $\ln(x+1)$ is monotonically increasing for $x>-1$ . This would mean $\dfrac1{\ln(x+1)}$ must be a monotonically decreasing sequence over the same interval, and so must $a_n$ .

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3 years ago

It cost the Wilson children $55 to make lemonade. How many glasses must they sell at 75 cents each to make a profit? Write an eq

Brut [27]

To start break even they need to sell 100 but if they want to make profit they need to sell 101 because you can use the equation y = .75x - 55

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3 years ago

Question 1 (Essay Worth 1 points) Which of the following expressions are equivalent to –3.5(2 – 3n) – 2.5n? A: –7 – 8n B: –7 + 8

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B is the anwser that I got

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3 years ago

PLS HELP PLS

mariarad [96]

The scale factor from Figure A to Figure B is 4

<h3>How to determine the scale factor from Figure A to Figure B?</h3>

From the question, we have the following statement:

Figure B is a scaled copy of Figure A.

The corresponding side lengths of figure A and figure B are:

Figure A = 10

Figure B = 40

The scale factor from Figure A to Figure B is then calculated as:

Scale factor = Figure B/Figure A

Substitute the known values in the above equation

Scale factor = 40/10

Evaluate the quotient

Scale factor = 4

Hence, the scale factor from Figure A to Figure B is 4