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Marizza181 [45]
3 years ago
9

Could someone show me how to do this?

Mathematics
1 answer:
timurjin [86]3 years ago
7 0

Step-by-step explanation:

b - no:of students on bus

V - " " on van

so the eqtn is

12v+10b=698

14v+2b=244

so when you solve these two eqtns you get

V=9

b=59

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part b is: if the energy release of one earthquake is 10,000 times that of another, how much larger is the Richter scale reading
kotegsom [21]

You could use the information from part A to get B. I'm not sure if you want A or not, so I'll do it as well.

A

Eo = 10^4.4 Joules

E = 2 * 10^15

Formula

M = (2/3) log (E/Eo)

M = 2/3 * log (2 * 10^15/10^(4.4) )

M = 2/3 * log( 7.9621* 10^10)

M = 2/3 * 10.901

M = 7.26735 on the Richter scale. That is a huge amount of energy.

Part B

Suppose that you use Eo and your base. Eo is 10^4.4

Now the new earthquake is E = 10000 * Eo

So what you get now is M = (2/3)* Log(10000 * Eo / Eo )

The Eo's cancel out.

M = 2/3 * log(10000)

M = 2/3 of 4

M = 8/3

M = 2.6667 difference in the Richter Scale Reading. It is still an awful lot of energy.

What this tells you is that if the original reading was (say) 6 then the 10000 times bigger reading would 8.266667

Answer: M = 2.6667


8 0
3 years ago
Read 2 more answers
Which is equal to 10^12/10^-3
tiny-mole [99]
10^[ 12 - ( - 3 ) ] = 10^( 12 + 3 ) = 10^15 ;
We use the formula
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3 0
3 years ago
Given f(x) = x⁴- 3x³ + 9x²- 17x + 42 and g(x) = -x² - x - 6, where g(x) cant equal 0, find (f/g)(x)​
12345 [234]

Step-by-step explanation:

De qué forma how is your night give me a picture

4 0
3 years ago
What is the answer for 2 (2s-1)+2
Harrizon [31]

Answer:

Add

−

1

and

2

.

2

,

2

s

+

1

Step-by-step explanation:

4 0
3 years ago
How to factor expressions?<br> For example 4n + 4 • 2,<br> 10t + 10 • 3, 7v + 7 • 8
TiliK225 [7]

Answer:

8(n + 1)

30(t + 1)

56(v + 1)

Step-by-step explanation:

(4n + 4)(2)

4(n + 1)(2)

8(n + 1)

(10t + 10)(3)

10(t + 1)(3)

30(t + 1)

(7v + 7)(8)

7(v + 1)(8)

56(v + 1)

6 0
3 years ago
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