Comparing with the original expression, the value that will go into the green box is 5
<h3>Exponents and indices</h3>
Given the indices expression below;

Since 4^-5 is equivalent to 1/4^5, hence the given expression will be equivalent to;

Comparing with the original expression, the value that will go into the green box is 5
Learn more on exponent here: brainly.com/question/11975096
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How do you want this to be solved ?
Pretty sure it's:
25+-8+-3
25+-11
=14
Answer:

Step-by-step explanation:
We are given a triangle
whose sides are
a=12
b=8
c=13
Since, c is largest among them
So, angle C must be largest angle
we can find angle C
we can use law of cosine formula

now, we can plug values


now, we can find angle
we get
