We must find UNIQUE combinations because choosing a,b,c,d... is the same as d,c,b,a...etc. For this type of problem you use the "n choose k" formula...
n!/(k!(n-k)!), n=total number of choices available, k=number of choices made..
In this case:
20!/(10!(20-10)!)
20!/(10!*10!)
184756
The answer is f(x)=x²+2x when evaluated with -3 gives you the value of 3
Answer:
<em><u>Option A </u></em>will be your answer
Step-by-step explanation:
hope it helps...
have a great day!!
<span>2x + 8 > 10
Subtract 8 from both sides
2x>2
Divide 2 on both sides
Final Answer: x>1</span>
Answer: It would be I, the 4th one.
Step-by-step explanation:The 2 squares on the outside would fold up, that would leave the top and the 2 opposite sides left, so you would fold the other 3 squares on the bottom over the top, till it would cover all the other exposed sides.
Hopefully this makes sense!