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3 years ago

If an earthquake measures 10^4, what does it measure on the Richter scale?

Mathematics

1 answer:

Dmitry [639]3 years ago

7 0

Answer:

The Richter scale and how it measures earthquake magnitude. The Richter scale calculates an earthquake's magnitude (size) from the amplitude of the earthquake's largest seismic wave recorded by a seismograph. ... (That is, an earthquake measuring 5.0 releases 31 times more energy than an earthquake measuring 4.0.)

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Charles uses a graphing calculator to find a quadratic regression model f for a given set of data. When he compares model f to a

makvit [3.9K]

B I hope this helped I’m not sure

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3 years ago

The population of Jacksonville in 2018 is estimated to be 19,000 people with an annual rate of increase of 3.4%. Which equation

Umnica [9.8K]

Answer:

$P=19,000(1.034)^{t}$

Step-by-step explanation:

Let

P-------> the population of Jacksonville

t----> the number of years since 2018

we know that

The equation that models the population of Jacksonville in t years is

$P=19,000(1+r)^{t}$

we have

$r=3.4\%=3.4/100=0.034$

substitute

$P=19,000(1+0.034)^{t}$

$P=19,000(1.034)^{t}$

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2 years ago

Drag steps of the solution into order to solve for x in the equation 7(x – 4) = 84.

Olin [163]

1. 7x - 28 = 84
2. 7x = 112
3. x = 16

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3 years ago

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30 boxes of melons and 4 melons in each bag . Each bag holds two melons. How melons are there in the store.

SVEN [57.7K]

The answer is the store has 240 melons.
(30x4)x2=240

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3 years ago

Use common denominators to determine whether the ratios form a proportion.

AURORKA [14]

They are not in proportion, since its 6:9 round it down (2:3) so pretend the 6 are apples and the 9 are oranges

Every 2 apples there are 3 oranges

So having 9 apples what is that?

2 x ? = 9

2 x 4.5 = 9

So if you want to keep 2:3 you have you times the oranges by 4.5 aswell!

3 x 4.5 = 13.5

So since it is 9:12 not 9:13.5 they are not in proportion

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3 years ago

Read 2 more answers