What makes 83 cents ?
2 answers:
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Answer:
Because the side w is the side opposite the right angle (the hypotenuse) +
(because of the 30-60-90 triangle), we just need to divide by the hypotenuse by 2 and then add three. Knowing this, our answer will come out to be 2 +
.
Step-by-step explanation:
If the quadratic is a perfect square, then there has to be a way to write the quadratic as 
, where 
is a root of the equation. Expanding it out, we see that
Now let's compare this form to the one that we were given. Since
matches up with 
, has to equal either 
or 
. So, since 
in the original equation matches up with 
in the equation we found, 
and
or 
Now let's compare this form to the one that we were given. Since