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defon
3 years ago
13

Mei wants to buy a hat for $3.She gives the cashier $5. Write the equation. Use X for the variable

Mathematics
2 answers:
valina [46]3 years ago
7 0

5x=3 not for sure I think that’s what it is

Katena32 [7]3 years ago
5 0
$3x=5 Try this equation
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Orlov [11]
Would it be 0,-4 and 0,-2
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3 years ago
Suppose that an experiment consists of flipping a coin 3 times and observing the resulting sequence of heads and tails. Find the
ki77a [65]

Using the binomial distribution, it is found that there is a 0.125 = 12.5% probability of observing exactly 3 tails.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem, considering 3 tosses of a fair coin, the parameters are n = 3 and p = 0.5.

The probability of 3 tails is P(X = 3), hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{3,3}.(0.5)^{3}.(0.5)^{0} = 0.125

0.125 = 12.5% probability of observing exactly 3 tails.

More can be learned about the binomial distribution at brainly.com/question/24863377

3 0
2 years ago
Do sb know da answerrrrr ?
shutvik [7]

Answer:

If I’m not wrong I think it’s the first one

Step-by-step explanation:

8 0
3 years ago
What is the are of this figure giving our brainlist to whoever writes the answer in 10 min
kiruha [24]

Answer:

63 cm^2

Step-by-step explanation:

For finding the area, split the given figure into 2 rectangles one with dimensions 6×5 and another with dimensions 12×2

Area = 6×5 + 12×2 = 39+24 = 63

6 0
2 years ago
The product of twenty-one negative integers is negative.<br> True<br><br> False
Shkiper50 [21]
Answer: TRUE:
_____________________
It is TRUE that the product of 21 (twenty-one) negative integer is a negative number; because you are multiplying an ODD NUMBER of NEGATIVE INTEGERS.
________________________
5 0
3 years ago
Read 2 more answers
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