23. Which number below could not be used to PLEASEE HELP!!
1 answer:
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Answer:
Factoring the term we get
Step-by-step explanation:
We need to factor the term
First we can see that is common in both terms
So, taking common:
We can write as
Now we can solve using the formula:
We can write:
So, factoring the term we get
A standard trick for finding the rational form of a repeated decimal:
Multiply by an appropriate power of 10 to move one "cycle" of the repeated pattern to the left side of the decimal point:
Now subtract
from this number and we lose the fractional part:
And from here you can solve for.
Multiply by an appropriate power of 10 to move one "cycle" of the repeated pattern to the left side of the decimal point:
Now subtract
And from here you can solve for