Micheal earns $9 per hour. He works 28 hours each week. How much will he earn in 6 weeks ?

The Size and representativeness of the sample are crucial factors in obtaining reliable estimates

The average satisfaction level of customers for a particular product. The population consists of thousands of customers who have purchased the product over a given period of time. It would be impractical and time-consuming to survey every single customer to obtain their satisfaction ratings. In such a situation, it would be beneficial to use a sample mean of a specific size.

By selecting a representative sample from the population, you can obtain a smaller subset of customers whose responses can be used to estimate the population mean. This approach allows you to collect data efficiently and make reasonable inferences about the entire customer population.

Here are a few reasons why using a sample mean would be beneficial:

1. Time and Cost Efficiency: Collecting data from the entire population can be time-consuming and costly. By using a sample, you can obtain the required information within a reasonable timeframe and at a lower cost

2. Feasibility: Sometimes, the population is too large or geographically dispersed to survey every individual. In such cases, a well-designed sample can provide sufficient information to make accurate estimations.

3. Practicality: In situations where obtaining data from the entire population is not feasible, such as studying historical events or conducting experiments, a sample can be a practical approach to gather data and draw meaningful conclusions.

4. Statistical Inference: With appropriate sampling techniques, you can use the sample mean to make statistical inferences about the population mean. By calculating confidence intervals or conducting hypothesis tests, you can estimate the range within which the population mean is likely to fall.

5. Reduction of Variability: Using a sample mean can help reduce the effect of individual variations and random fluctuations that may be present in the population. A sample can provide a more stable estimate of the population mean by averaging out the individual differences.

the size and representativeness of the sample are crucial factors in obtaining reliable estimates. Proper sampling techniques and statistical analysis should be employed to ensure the validity and accuracy of the results.

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The equation in the vertex form will be y = (x + b/2a)² - b²/4a² + c/a and the equation in the standard form will be ax² + bx + c = 0.

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2.

Convert the standard equation into a vertex form, then we have

x² + (b/a)x + (c/a) = 0

x² + (b/a)x + b²/4a² - b²/4a² + c/a = 0

(x + b/2a)² - b²/4a² + c/a = 0

Put h = - b/2a and k = - b²/4a² + c/a, where (h, k) be the vertex of the parabola. Then the equation will be

(x - h)² + k = 0

The function written in vertex form will be y = (x - h)² + k and in the standard form will be ax² + bx + c = 0.

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The population of the city after 9 years is 999, 879, 514, 205 or approximately 1 trillion people.

Given that,

Initial population of the city = 330,000

Each year people grows by 4.25.

The population after t years, if the growth rate r and the initial population P is given, is,

P(t) = P(1 + r)^t

Here t = 9 years

P = 330,000

r = 4.25

P(9) = 330,000 (1 + 4.25)⁹

      = 999, 879, 514, 205 ≈ 1 trillion

Hence the required population is 1 trillion.

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Answer:

(a) 51,100 kilometers.

(b) \(y = 7.68 * 10^{-6}\) meters

Step-by-step explanation:

(a) When converting from scientific notation to standard notation, split the equation.

When solving \(5.11 * 10^{4}\), begin by calculating \(10^{4}\).

\(10^{4}\) = 10,000

Multiply this by '5.11', resulting in:

5.11 × 10000 = 51,100 kilometers.

(b) When converting from standard form to scientific notation, count the number of zeros until the first non-zero digit. Therefore:

In 0.00000768, the '7' is placed 6 digits from the decimal. Recall that for decimals, the exponent is negative. Therefore in scientific notation, this equals: \(y = 7.68 * 10^{-6}\)

Answer:

he bought 20 hard cover and

he bought 15 paper back

Step-by-step explanation:

3x20= 60

2x15=  30

           90

Answer:

43t;ouh43

Step-by-step explanation:

55r

Answer:

X=-1, y=1

Step-by-step explanation:

- x=2x+3

-3x=3

X=-1

Y=-1*-1=1

Answer:

-4 1/2

Step-by-step explanation:

-4 1/2 sum times 4 is -18

In the equation y = $7.20x + $790, "y" represents the total cost. An equation is a mathematical statement that shows the relationship between two or more variables. In this equation, there are two variables - "x" and "y". The variable "x" represents the number of units produced or sold, while "y" represents the total cost.

The coefficient of "x" in the equation, which is 7.20, represents the variable cost per unit. This means that for each unit produced or sold, there is an additional cost of $7.20. The constant term, which is $790, represents the total fixed costs. Fixed costs are those costs that do not vary with the number of units produced or sold.To find the total cost of producing or selling a certain number of units, we can plug in the value of "x" into the equation and solve for "y". For example, if we want to find the total cost of producing 100 units, we can substitute x=100 into the equation:
y = $7.20(100) + $790
y = $720 + $790
y = $1510
Therefore, the total cost of producing 100 units is $1510. In summary, "y" represents the total cost in the given equation, which is determined by both fixed and variable costs.
In the equation y = $7.20x + $790, "y" represents option C: total costs. This equation has two components: "$7.20x" represents the variable costs per unit, where x is the number of units, and "$790" represents the total fixed costs. By adding these two components together, you get the total costs (y) for producing x units.

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Answer:

B' = (-6,6)

Step-by-step explanation:

The coordinates of B are (-2,2)

If the figure is to become 3 times as large, B' would be 3(-2,2) = (-6,6)

Probability that the drug will be ineffective in more than two cases is 0,68.

Drug is effective in 9 cases out of 10, so the drug:

If the drug is tested on 12 patients, then there are 13 possibilities, namely:

In the problem, asked to find the probability of the drug being ineffective in more than 2 patients, there are 10 possibilities, namely

The way to find out the possibility of a drug being effective in 0-9 patients is:

P(effective ≤ 9) = P(effective 9) + P(effective 8) + ... + P(effective 0)

However, quite a lot is calculated if you use the formula above, less will be calculated if you use the method below:

P(effective ≤ 9) = 1 - ( P(effective 10) + P(effective 11) + P(effective 12) )

Let's try to start by calculating P(effective 10). P(effective 10) means the probability of being effective for 10 people and ineffective for 2 people. Then the effective probability is raised to the power of 10 and multiplied by the ineffective probability raised to the power of 2.

P(effective 10) = \((\frac{9}{10})^{10} .(\frac{1}{10} )^2\)

P(effective 10) = \(\frac{9^{10} }{10^{12} }\)

P(effective 10) = \(\frac{3486784401}{1000000000000}\)

So does P(effective 11) and P(effective 12)

P(effective 11) = \((\frac{9}{10} )^{11}.(\frac{1}{10})^{1}\)

P(effective 11) = \(\frac{9^{11} }{10^{12} }\)

P(effective 11) = \(\frac{3486784401}{1000000000000}\)

P(effective 12) = \((\frac{9}{10}) ^{12} .( \frac{1}{10} )^0\)

P(effective 12) = \(\frac{9^{12}}{10^{12}}\)

P(effective 12) = \(\frac{282429536481}{1000000000000}\)

So:

P(effective ≤ 9) = 1 - ( P(effective 10) + P(effective 11) + P(effective 12) )

P(effective ≤ 9) = 1 - ( \(\frac{3486784401}{1000000000000}\)+ \(\frac{3486784401}{1000000000000}\)+ \(\frac{282429536481}{1000000000000}\))

P(effective ≤ 9) = 1 - \(\frac{317297380491}{1000000000000}\)

P(effective ≤ 9) = 1 - 0,317297380491

P(effective ≤ 9) = 0,682702619509 ≈ 0,68

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The four types of analytical procedures are ratio analysis, trend analysis, reasonableness tests, and regression analysis.

All of the above are examples of the types of analytical procedures.

Ratio analysis involves using various ratios and metrics to analyze a company’s financials.

These ratios can be compared to industry averages and other relevant information to gain insights into the company’s performance.

Trend analysis examines how different financial metrics are changing over time.

Regression analysis is used to determine the impact of one or more independent variables on one or more dependent variables.

Hope this helps!

Among the given options, "trend analysis" is not one of the types of analytical procedures.

Analytical procedures are the techniques or processes that are used to analyze the financial information.

Analytical procedures are the most essential part of the auditing process.

It helps to detect the errors, misstatements, and fraud in the financial statements.

There are four types of analytical procedures.

They are: Ratio Analysis: Ratio analysis is the process of analyzing the financial information by using various ratios.

The ratios help to determine the financial performance of the organization.

The various ratios that are used are profitability ratios, liquidity ratios, activity ratios, and solvency ratios.

It involves the use of nonfinancial data to determine the reasonableness of the financial information.

Regression Analysis: Regression analysis is a statistical tool used to determine the relationship between two variables. The variables are tested to determine how they are interrelated.

All of the above are examples of the types of analytical procedures.

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The statement "the confidence interval formula for a sample size is the same as the sample size formula for a mean" is false because they serve different purposes and cannot be used interchangeably.

The formula for a confidence interval depends on several factors, including the sample size, the level of confidence, and the standard deviation of the sample. The formula for a confidence interval for a mean is:

Confidence interval = sample mean ± (t-value) x (standard error)

where the t-value is based on the level of confidence and the degrees of freedom, and the standard error is the standard deviation of the sample divided by the square root of the sample size.

In summary, while both formulas involve the sample size and are used in statistical analysis, the confidence interval formula and the sample size formula for a mean are distinct and cannot be used interchangeably.

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Answer:

I think its b

Step-by-step explanation:

Answer:

this answer is b

Step-by-step explanation:

have a good day

Answer:

-x+15x = 14x

14x-2 is the expression simplified

hope its correct and it helped.

Step-by-step explanation:

3x-12y=6

Lets convert to slope intercept form

Slopes are equal so lines are parallel

Hence no solutions

Answer:

No

Step-by-step explanation:

Hope this helps :)

Answer:

0.9 ounces

Step-by-step explanation:

Each cookie weighs 0.3 ounces and there are 3 cookies. So multiply 0.3 by 3 and you get 0.9.

hope this helps, brainliest appreciated!

The lion is the second fastest land animal in all of Africa, reaching a top speed of 81 km/h (50.3 mph). The lion can consider itself faster than other animals, only being outpaced by the cheetah, which can achieve an astounding 120 km/h (74 mph).

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Answer:

rational

Step-by-step explanation:

it can be written as a fraction

Answer:

Perimeter = 22.434

Step-by-step explanation:

To find the perimeter we need to find the length of all three sides, and we do that by finding the distance between the points that form the sides:

The formula for the distance between two points is:

\(d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\)

side UV:

\(UV = \sqrt{(-2 - 3)^2 + (4 - 4)^2} = 5\)

side VW:

\(VW = \sqrt{(3 - 3)^2 + (4 - (-4))^2} = 8\)

side UW:

\(UW = \sqrt{(-2 - 3)^2 + (4 - (-4))^2} = 9.434\)

So the perimeter is:

\(P = UV + VW + UW\)

\(P = 5 + 8 + 9.434 = 22.434\)

Answer:

wait what are you trying to find i-

Step-by-step explanation:

Answer:

C and D (maybe)

Step-by-step explanation:

75 hundeds are equal to 75%

Answer:

i would say number 1

Step-by-step explanation:

The arrangement of the numbers on the number line is;

17/9 < √6 < √15 < √30 < 3³.

The number line refers to an orderly arrangement of numbers. We must know that the number line moves from left to right. The numbers are always increasing from left to right along the number line.

Now the numbers are;

Hence the arrangement of the numbers on the number line is;

17/9 < √6 < √15 < √30 < 3³.

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Answer:

FEG: 70 degrees

HEG: 110 degrees

Step-by-step explanation:

vertical angles are the same, and for supplementary angles you subtract 180, so likes for FEG you subtract 110 from 180, and for HEG its just the same thing

Answer:

7 - 2m can be translated to "7 minus two times m" or "the difference between 7 and twice m".

3(m + 2) = 15 can be translated to "three times the sum of m and 2 is equal to 15" or "the product of 3 and the sum of m and 2 is 15".

To solve the equation, we can start by distributing the 3 on the left side:

3(m + 2) = 15

3m + 6 = 15

Then, we can subtract 6 from both sides:

3m + 6 - 6 = 15 - 6

3m = 9

Finally, we can divide both sides by 3:

3m/3 = 9/3

m = 3

Therefore, the solution to the equation 3(m + 2) = 15 is m = 3.

5m - m(2 - m) can be translated to "5m minus the product of m and the difference between 2 and m" or "the difference between 5m and m times the quantity 2 minus m".

To simplify the expression, we can use the distributive property to expand the second term:

5m - m(2 - m) = 5m - 2m + m^2 = m^2 + 3m

Therefore, the simplified expression is m^2 + 3m.

Using the equation y = abx , substitute both of your given points into that equation.

2 = ab2 and 4 = ab3 Solve each equation for a.

2⁄b2 and 4⁄b3 = a Therefore, 2⁄b2 = 4⁄b3

Cross multiply: 2b3 = 4b2 Divide both sides by b2

2b = 4 a = 2/4 = 1/2

b = 2

y = 1 (2)x

2 hopefully this helped.

Answer:

y=3(4) x

Step-by-step explanation: