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OverLord2011 [107]
3 years ago
7

Simplify x^5•x^-5•x^7

Mathematics
2 answers:
Lady_Fox [76]3 years ago
7 0

Answer:

x^7

Step-by-step explanation

you have to add the exponent

Free_Kalibri [48]3 years ago
7 0

Answer: The answer would be x^7

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Answer:

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If 20% of the science students at Central High study on physics, 25% study chemistry and the rest study only biology, what is th
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4 years ago
g Suppose I will flip a fair coin until it lands Heads for the first time, and you will receive $2 if the game lasts for 1 round
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Answer:

Step-by-step explanation:

The main idea is that I would like to pay less than what I'm expecting to win, so in that way, I get a profit out of playing this game. Let X be the number of tosses until I get a Heads. By definition, this is a geometric random variable with parameter p = 1/2.

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Then,

E[Y] = \sum_{n=1}^\infty 2^{n} (\frac{1}{2})^{n-1} \frac{1}{2} = \sum_{n=1}^\infty 2^{n-1} \cdot \frac{1}{2^{n-1}} = \sum_{n=1}^\infty 1 = \infty

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3 years ago
In Alice, how many directions can an object move
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vovikov84 [41]

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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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