Mary baked 21 cookies on saturday and twice that many on sunday for a school fundraiser. 4 cookies fell on the ground and had to
1 answer:
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Answer:
B) 5x^2
Step-by-step explanation:
We can divide 50 by 2, we get 25 and we can cancel out x from x^5.
Therefore, we get
= √25x^4
When we take the square root of 25, we get 5 and √x^4 = x^2.
Taking the square root, we get
= 5x^2
Answer: B) 5x^2
Thank you.
First of all, you have to understand 
<span> is a square-root function.
</span>Square-root functions are continuous across their entire domain, and their domain is all real x-<span>values for which the expression within the square-root is non-negative.
</span>
In other words, for any square-root function
and any input 
in the domain of (except for its endpoint), we know that this equality holds: 
Let's take
<span>as an example.
</span>
The domain of
is all real numbers such that 
. Since 
is the endpoint of the domain, the two-sided limit at that point doesn't exist (you can't approach 
<span>from the left).
</span>
<span>However, continuity at an endpoint only demands that the one-sided limit is equal to the function's value:
</span>
In conclusion, the equality holds for any square-root function and any real number in the domain of e<span>xcept for its endpoint, where the two-sided limit should be replaced with a one-sided limit. </span>
The input
, is within the domain of <span>.
</span>
Therefore, in order to find
we can simply evaluate at 
<span>.
</span>
</span>Square-root functions are continuous across their entire domain, and their domain is all real x-<span>values for which the expression within the square-root is non-negative.
</span>
In other words, for any square-root function
Let's take
</span>
The domain of
</span>
<span>However, continuity at an endpoint only demands that the one-sided limit is equal to the function's value:
</span>
In conclusion, the equality
The input
</span>
Therefore, in order to find
</span>