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Annette [7]
3 years ago
11

Find the value of x that makes this equation true, just write a number for your answer. Use / for writing fractions

Mathematics
1 answer:
grandymaker [24]3 years ago
4 0

Answer:

8/21 = -2/7x

8*7x/21 = -2

56x/21 = -2

56x = -2*21

56x = -42

56x/56 = -42/56

<h2>X = -3/4 , -0.75</h2>

Step-by-step explanation:

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A function of random variables used to estimate a parameter of a distribution is a/an _____.
stiks02 [169]

A function of random variables utilized to calculate a parameter of distribution exists as an unbiased estimator.

<h3>What are the parameters of a random variable?</h3>

A function of random variables utilized to calculate a parameter of distribution exists as an unbiased estimator.

An unbiased estimator exists in which the difference between the estimator and the population parameter grows smaller as the sample size grows larger. This simply indicates that an unbiased estimator catches the true population value of the parameter on average, this exists because the mean of its sampling distribution exists the truth.

Also, we comprehend that the bias of an estimator (b) that estimates a parameter (p) exists given by; E(b) - p

Therefore, an unbiased estimator exists as an estimator that contains an expected value that exists equivalent to the parameter i.e the value of its bias exists equivalent to zero.

Generally, in statistical analysis, the sample mean exists as an unbiased estimator of the population mean while the sample variance exists as an unbiased estimator of the population variance.

Therefore, the correct answer is an unbiased estimator.

To learn more about unbiased estimators refer to:

brainly.com/question/22777338

#SPJ4

4 0
1 year ago
Please answer it fast​
Afina-wow [57]

Answer:

0 and - 10

-4 and - 15

Step-by-step explanation:

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

Which does lie between

  • 0 and - 10
  • -4 and - 15

Hope it helps you in your learning process

8 0
3 years ago
Read 2 more answers
Select the two figures that are similar to the 5 by 5 figure that is shown.
weeeeeb [17]
Answer: the blue and the pink
4 0
3 years ago
Jamie wants to build a rectangular fence around a new garden. He can afford at most 70
KonstantinChe [14]

Option B is correct. <em>Yes,</em><em> (9, 22) is a solution to the </em><em>inequalities</em><em> and the</em><em> measurements</em><em> will fit in the space. </em>

The formula for calculating the perimeter of the rectangular fence is expressed as:

A = 2(L + W) where:

L is the length

W is the width

If Jamie can afford at most 70feet to build a rectangular fence is expressed as:

2L + 2W ≤ 70

<em>We are to check if the garden measure 9 feet by 22 feet. To do this we are to substitute L = 9 and W = 22 into the formula to check if the result will be less than 70</em>

On substituting:

= 2(9) + 2(22)

= 18 + 44

= 62 feet

Since 63 feet is less than 70 feet, hence we can conclude that <em>Yes,</em><em> (9, 22) is a solution to the </em><em>inequalities</em><em> and the</em><em> measurements</em><em> will fit in the space. </em>

<em />

<em>Learn more here: brainly.com/question/17229451</em>

8 0
3 years ago
last season, your favorite basketball team won 20 games. So far this season, your favorite basketball team has won 31 games. Wha
docker41 [41]

Answer:

There is a 55% increase in the number of games.

Step-by-step explanation:

Step 1: Calculate the change (subtract old value from the new value)

Step 2: Divide that change by the old value (you will get a decimal number)

Step 3: Convert that to a percentage (by multiplying by 100 and adding a % sign)

6 0
3 years ago
Read 2 more answers
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