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White raven [17]
2 years ago
6

Help I am doing a unit test

Mathematics
1 answer:
Dominik [7]2 years ago
5 0

Answer:88i+16

Step-by-step explanation:

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multiplication

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I need help and i also need the work shown...please and thank you
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55

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If a person tosses a coin 23 times, how many ways can he get 11 heads
EastWind [94]

Tossing a coin is a binomial experiment.

Now lets say there are 'n' repeated trials to get heads. Each of the trials can result in either a head or a tail.

All of these trials are independent since the result of one trial does not affect the result of the next trial.

Now, for 'n' repeated trials the total number of successes is given by

_{r}^{n}\textrm{C}

where 'r' denotes the number of successful results.

In our case n=23 and r=11,

Substituting the values we get,

_{11}^{23}\textrm{C}=\frac{23!}{11!\times 12!}

\frac{23!}{11!\times 12!}=1352078

Therefore, there are 1352078 ways to get heads if a person tosses a coin 23 times.


3 0
3 years ago
What is the answer to -6x - 11 = 19<br> And how to solve it?
liubo4ka [24]

-6x-11=19/+11 <=>

<=> -6x=30/:(-6) <=>

<=> x=-5

3 0
8 months ago
How to find the volume of a prism
Advocard [28]

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the volume is V = 1120 inches squared

Step-by-step explanation:

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2 years ago
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