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inessss [21]
2 years ago
8

3). AFTER PAYING HER BILLS CAROL HAS -$45 IN HER CHECKING

Mathematics
2 answers:
bazaltina [42]2 years ago
8 0
-45 + 150 = 105

Carol has $105 in her account after receiving her paycheck.
Murrr4er [49]2 years ago
4 0

Answer:105

explanation: -45

+150

_ ___

105

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If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?
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Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: \frac{35}{128}

Step-by-step explanation:

We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.

This is the combination question.

The total combinations will be: 2^7=128

Now, finding number of ways we can get exactly 4 tiles:

We will use the formula:

^nC_k=\frac{n!}{k!(n-k)!}

in our given question, n= 7, k= 4

Putting values:

^nC_k=\frac{n!}{k!(n-k)!}\\^7C_4=\frac{7!}{4!*3!}\\ ^7C_4=\frac{7*6*5*4!}{4!*3!}\\ ^7C_4=\frac{7*6*5}{6}\\ ^7C_4=35

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: \frac{35}{128}

Keywords: Probability

Learn more about Probability at:

  • brainly.com/question/1637111
  • brainly.com/question/2254182
  • brainly.com/question/2264295

#learnwithBrainly

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3 years ago
Kate has a coin collection. She keeps seven of the coins in a box, which is only 5% of her entire collection. What is the total
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Step-by-step explanation:

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50000 units on ground length

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Step-by-step explanation:

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