All categories

3 years ago

Estimate the perimeter of the figure The perimeter is about ____ units.

Mathematics

1 answer:

storchak [24]3 years ago

8 0

Answer:

Step-by-step explanation:

Do it by count how many side are there by the squares

You might be interested in

Arachnophobia is the fear of spiders. People with arachnophobia suffer to different degrees, but they tend to react intensely to

zepelin [54]

Answer:

1. The null hypothesis is that there is no difference between the population means (in other words, there is no treatment effect).

2. The alternative hypothesis is that at least one of the population means is different from another (in other words, there is an effect Of at least one Of the treatments).

Step-by-step explanation:

In a statistical analysis, the statistician shares his participants into several groups and administers treatments to them. After administering the treatment, he might want to compare the values obtained to see if there is a difference. If he accepts the null hypothesis as true, that means that there was no difference between the population means. This can also be taken to mean that the result had no difference among the groups.

But if the alternative hypothesis was true, that means that the population means were not all equal and so, there was an effect from the treatment administered.

7 0

3 years ago

Assume that the random variable X is normally distributed, with mean 60 and standard deviation 16. Compute the probability P(X &

elixir [45]

Answer:

P(X < 80) = 0.89435.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 60, \sigma = 16$

P(X < 80)

This is the pvalue of Z when X = 80. So

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

$Z = \frac{80 - 60}{16}$

$Z = 1.25$

$Z = 1.25$ has a pvalue of 0.89435.

P(X < 80) = 0.89435.

5 0

3 years ago

Metoda comparației

kozerog [31]

Answer:

Aflam cat costa 1 stilou (38 - 8) : 6 = 30 : 6 = 5 lei

5 0

3 years ago

Was a major accomplishment of both Tutankhamun and Rameses II. Plz help

LenKa [72]

Answer:

AA similarity. The angles in both are the same.

Edit: I don't know if you need this, but a major accomplishment of King Tut and Ramses was that they encouraged the following of ancient religious beliefs among the Egyptian people .

Hope that this helps!

6 0

3 years ago

Sharif likes exersicing.He goes hill-climbing every 12 days anf goes swimming every 8 days.If je goes hill-climbing and swimming

topjm [15]

This is a lowest common multiple question.
to find the lowest common multiple, you need to find the prime factors of the two numbers:
$8 = 2 , 2 , 2$
$12 = 2 , 2 , 3$
Take out duplicates:
$2,2,2,3$
and multiply them together:
$2*2*2*3 = 24$
and that is your answer.
Easy peasy.

5 0

4 years ago

Read 2 more answers