Help pls!!! I Don't understand!!!
1 answer:
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The basic idea is that multiplying by 10 just moves the decimal point one place to the right. It makes the number bigger.
Examples:
3.1 x 10 = 31
3.1 x 10 x 10 = 31 x 10 = 310
Each time you multiply by another 10, the decimal point moves one more place.
In your exercise, says you're going to multiply by 10 <u>three</u> times in a row. So that will move the decimal point 3 places to the right.
So what do you get if you move the decimal in 4.25 three places to the right?
For this case we must simplify the following expression:
We rewrite:
We rewrite the expression:
By definition of properties of powers and roots we have:
Then, taking the terms of the radical:
We add similar terms:
Answer:
Option C
