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tia_tia [17]
3 years ago
11

Please someone help !!!!!! I will give brainliest !

Mathematics
1 answer:
ryzh [129]3 years ago
6 0

Answer:

C. 0.0067

Step-by-step explanation:

6.7*10^-3

Write in standard form.

This question pertains to scientific notation, a way to easily express really large or really small numbers.

You'll first notice that 10 has a negative exponent. This tells you that the number is going to be smaller than 10.

This is because 10^-3 translates to 1/10^3 based on exponent rules

With that, you know that your equation is 6.7/10^3

<u>You can simplify that to:</u>

\frac{6.7}{10^{3} }

\frac{6.7}{1000}

0.0067

In case you didn't know how I got there, 10^3 simply means 10 multiplied by itself 3 times.

The other method would be to look at your answer choices. Since we have a negative exponent, we can eliminate D.

Next, since we have a positive coefficient (6.7), we can eliminate A and B.

That leaves us with the answer C. 0.0067

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ALGEBRAIC EXPRESSION 11. Subtract the sum of 13x – 4y + 7z and – 6z + 6x + 3y from the sum of 6x – 4y – 4z and 2x + 4y – 7. 12.
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