Which of y’all did not receive a gift for the child of a dog or
<span>Given that B=(1,2,3,4) how many subsets have exactly two elements?
4C2 =
4! 4! 4 x 3
------------ = -------------- = --------------- = 6
2! (4-2)! 2! 2! 2 x 1
answer is 6</span>
20? I’m not for sure maybe look in the book? That’s the answer I got and it was right
-18 + 1 = -17
I hope this was the answer you were looking for!:)
Answer:

Step-by-step explanation:
So we want to simplify:

Note that this is in the format:

And we know that this is the same as:

Let 2√5 be a and let √3 be b. Thus:

Simplify:

And this cannot be simplified any further.