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Alinara [238K]
2 years ago
8

5. Seismologists use the Richter scale to measure the magnitudes and intensity of earthquakes that occur all over the earth. (se

e below, some info about Richter scales, and intensity formula)
Let’s say an earthquake hit Los Angeles, CA and had a magnitude of 3.4. If another earthquake hit Atlanta, GA and was a magnitude of 1.2, then how much more intense was the earthquake in LA?
Mathematics
1 answer:
vladimir1956 [14]2 years ago
4 0

Answer:

158.49

Step-by-step explanation:

10^(3.4 - 1.2) = 158.48931924611

round to 158.49

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The angle of elevation to the top of a skyscraper is measured to be 2° from a point on the ground 1 mile from the building. How
Nadusha1986 [10]

See picture below for a geometric view.


Let x = height of building


We use basic trigonometry to find x.


The tangent function = opposite side of right triangle OVER adjacent side of right triangle.


tan(2°) = x/1


Solve for x.


After multiplying both sides by 1 (here 1 represents 1 mile), we get

tan(2°) = x.


We now use the calculator to find x.


In fact, you can take it from here. Use your calculator.


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3 years ago
Explain your work please
Vlad1618 [11]
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If you were to use the “Completing the Square” method to solve the equation below for k, what number would you add to both sides
Makovka662 [10]

Answer:

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I believe its 1048576/6561<span />
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Jan earns 4256 this year which is 28% over last year. What was her salary last year?
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This should help you!

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