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soldi70 [24.7K]
2 years ago
6

4. What is the experimental probability of flipping a head after twenty flips of the coin?

Mathematics
2 answers:
Marta_Voda [28]2 years ago
6 0
1/2 x 20 = 10

Hope this helped! :)
kvasek [131]2 years ago
4 0
1/2 x 20 = 10 is the answer
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Solve the equation below for x:<br><br><br> 0.25(x - 13) = 7
VikaD [51]

Answer:

x=41

Step-by-step explanation:

0.25(x-13)=7

We move all terms to the left:

0.25(x-13)-(7)=0

We multiply parentheses

0.25x-3.25-7=0

We add all the numbers together, and all the variables

0.25x-10.25=0

We move all terms containing x to the left, all other terms to the right

0.25x=10.25

x=10.25/0.25

x=41

4 0
2 years ago
Read 2 more answers
The set of life spans of an appliance is normally distributed with a mean mu = 48 months and a standard deviation sigma = 8 mont
navik [9.2K]

Using the normal distribution, it is found that the life span of an appliance that has a z-score of –3 is of 24 months.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the parameters are given as follows:

\mu = 48, \sigma = 8, Z = -3.

Hence:

Z = \frac{X - \mu}{\sigma}

-3 = \frac{X - 48}{8}

X - 48 = -24

X = 24.

The life span of an appliance that has a z-score of –3 is of 24 months.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ4

6 0
2 years ago
Determine the domain and the range for this relationship.
Jlenok [28]

Answer:

I can't drag duder.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If you can help me with this whole thing i will be forever in your dept
Setler79 [48]

Answer:

Answer:

6 days

210 pages

Step-by-step explanation:

As stipulated by the question, let the number of days Amir has been reading be x and the number of pages he had read to be y.

Now since he reads 35 pages per day.

Then mathematically;

y = 35x

For Jesse, He started reading a day before, this means that the number of days he had read would be x + 1. Since he reads 30 per day, the total number of pages he would have read is 30(x+1)

To find the number of days which is x, we have to assume that at a point in time, the number of books they would have read would be the same meaning that

Also; y = 30(x + 1)

Equating the two situations

35x = 30(x + 1)

35x = 30x + 30

35x -30x = 30

5x = 30

x = 30/5

x = 6 days

This means that it will take Amir 6 days to catch Jese.

The number of books they would have read by then is y = 35x = 30(x + 1)

= 35 * 6 or 30(6+1)

= 210

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the cosine ratio of ZZ?
atroni [7]

Answer:

  • \sf \cfrac{3}{5}

Step-by-step explanation:

\sf cos(z)=\cfrac{adjacent\: side \: of \:\angle z}{hypotenuse}

\sf cos(z)=\cfrac{12}{20}

\sf cos(z)=\cfrac{3}{5}

Hope it helps!

3 0
2 years ago
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