Suppose x coins are tossed. Write an expression to represent the number of possible outcomes.
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so waht do you know about this already?
There are 2 sides to a coin
>.< besides that. i mean what do you know about probability?
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I know the probability of a coin landing on heads is 1/2 the same for tails
and I know every time you add a coin the chance that there will only be one heads halves
so then you just answered your own question. what's the answer then?
but its talking about outcomes
-_- >.< their the same region of math. >_<
They might be the same region but even in the same region you can get very different answers like when using sin cos and tan
Im confused here
\[x^2\] that's the answer
thats not one of the answers available
The diagram shows the outcomes of tossing 1 coin, 2 coins and 3 coins.
There are 2 outcomes for 1 coin, 4 outcomes for 2 coins and 8 outcomes for 3 coins. Can you make the correct choice of expression now?
Try substituting in each of the choices for 3 coins and see which gives the correct number of possible outcomes.
For example choice B:
x + x = 3 + 3 = 6
Therefore choice B is incorrect.