<span>Use the Pythagorean theorem for the right triangle 
where
is the hypotenuse of the triangle;
and 
are the other two sides.
So,
</span>
So,
</span>
There are 7 comedy DVDs there are 4 more drama DVDs than horror DVDs there are 15 DVDs on all
1 answer:
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<span>A. 8,648,640
B. 13
C. 665,280
D. 4,324,320
</span>Assume you don't watch movies twice.
If you have 13 movies to pick from, then you have 13 choices for the first movie. Then, only 12 choices are left. Do this until only 6 are left (13-7=6)
This equates to
Therefore, the answer is A, 8,648,640 different ways.
Hope this helps!
B. 13
C. 665,280
D. 4,324,320
</span>Assume you don't watch movies twice.
If you have 13 movies to pick from, then you have 13 choices for the first movie. Then, only 12 choices are left. Do this until only 6 are left (13-7=6)
This equates to
Therefore, the answer is A, 8,648,640 different ways.
Hope this helps!