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2 years ago

Write 0.002349 in scientific notation.

Mathematics

1 answer:

Studentka2010 [4]2 years ago

3 0

Hi! I'm happy to help!

To solve this, we first need to know what scientific notation is. Scientific notation is a way a number is written. You write it using a number ranging from 1 to <10. Then, you multiply this number by $10^{x}$ .

In order to make this number reasonable for scientific notation, you have to move the decimal a certain amount of places. In this case you move it 3 places to the right to make your number 2.349. Since we moved it 3 places to the right our x will be -3. (If we'd moved it 3 places to the left, our x would be positive 3.)

So now, we insert our numbers:

2.349· $10^{-3}$

You write 0.002349 like 2.349· $10^{-3}$ , when it is in scientific notation.

I hope this was helpful, keep learning! :D

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Give a direct proof that the sum an even integer and an odd integer is odd.

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Even integer: 2 x a, where a is a natural number without 0;
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3 years ago

Pedro le dice a María si cambias los billetes de 10 € que tienes por billetes de 5 € y los billetes de 5 € por billetes de 10 €

Bad White [126]

Answer: Maria has 10 bills of 5€ and 10 bills of 10€.

She has a total of 150€.

Step-by-step explanation:

Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.

Set up a system of equations:

$\left \{ {{f+t=20} \atop {5f+10t=10f+5t}} \right.$

Use the Substitution method to solve the system of equations:

1. Solve for "f" from the first equation:

$f=20-t$

2. Substitute the equation obtained into the second equation and solve for "t".

Then:

$5(20-t)+10t=10(20-t)+5t\\\\100-5t+10t=200-10t+5t\\\\20t-10t=100\\\\t=\frac{100}{10}\\\\t=10$

3. Substitute the value of "t" into the equation $f=20-t$ and evaluate:

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Therefore, Maria has 10 bills of 5€ and 10 bills of 10 €.

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She has a total of 150€.

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3 years ago

1+1

Bezzdna [24]

Answer:

Step-by-step explanation:

Well you should count with fingers, one finger and one finger, two fingers

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2 years ago

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2 years ago

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Explanation:
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Now if we plug in the x = 1, we would have discontinuity as function goes to infinity.

Now for f(1):
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3 years ago