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2 years ago

Number 12.

Mathematics

2 answers:

Ray Of Light [21]2 years ago

5 0

Answer: 22 tiles

Step-by-step explanation: well if the tiles are 1/4 of a foot then you need 4 of them to equal a foot. since the measurement's are 5.5ft, multiple 5x4 to get 20. then add two more for the .5 (2 i/4 equal 1/2) so you get 22 tiles.

blondinia [14]2 years ago

4 0

Answer:

22) 22

23) -350

Step-by-step explanation:

22)

1/4 = 0.25 ft

5.5 / 0.25 = 22

Answer: 22 tiles are needed

23)

12(x + 360) = 120

x + 360 = 10

x = - 350

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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.

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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

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1 year ago

Hey can someone help me?

RoseWind [281]

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2 years ago

5g + 4(-5+3g) = 1 - g

Korvikt [17]

5g + 4(-5 + 3g) = 1 - g
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g = $\frac{21}{18}$ or
you can simplify $\frac{21/3}{18/3} = \frac{7}{6}$ or $1 \frac{1}{6}$

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