1.5, 21.5, 21.6 d: 20.0, 20.0, 20.0, 20.1, 20.2, 20.5, 20.5, 20.6, 20.7, 20.7, 21.0, 21.2, 21.5, 21.6, 22.1, 22.3 compute the standard deviation of the measurements for each method

Answer:

(3,−4),(7,−2),(0,−1),(−3,4),(−7,11)

How to find?

Inverse the \(x x\) and \(yy\) in each of the points location.

Want some pictures?

Look below, there will be a screenshot of a graph I made.

Thanks!

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The solution to the equation 91 = 29^x is approximately x ≈ 1.08.

To solve for x in equation 91 = 29^x, we need to isolate the variable x. Here's the step-by-step process:

Add 150 to both sides of the equation to get rid of the constant term:

91 + 150 = 29^x + 150

Simplify the equation:

241 = 29^x + 150

Subtract 150 from both sides:

241 - 150 = 29^x

Simplify further:

91 = 29^x

Now, we can solve for x by taking the logarithm of both sides of the equation with base 29. Using the logarithm property log_b(a^c) = c * log_b(a), we have:

log_29(91) = x

Using a calculator or logarithm table, we can find that log_29(91) ≈ 1.08.

Therefore, the solution to the equation 91 = 29^x is approximately x ≈ 1.08.

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Answer:

106

Step-by-step explanation:

the average of the 3 numbers is calculated as

average = \(\frac{86+113+119}{3}\) = \(\frac{318}{3}\) = 106

The average of 86, 113, and 119 is 106

The average can be calculated as follows:

Given the formula:
\(A=\frac{x+y+z}{3}\)

Substitute x=86, y=113, and z=119 into the given formula

\(A=\frac{86+113+119}{3}\)

Add the numerator.

\(A=\frac{318}{3}\)

Divide the number.

\(A=106\)

Therefore the average of 86, 113, and 119 is 106.

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Slope of lines 3x - 5y = 2 and 3x + 5y = -2 are m₁ = 3/5 and m₂ = -3/5 respectively.

The slope of a line is defined as the change in y-coordinate with respect to the change in x-coordinate of the line. The net change in the y coordinate is Δy and the net change in the x coordinate is Δx. Therefore, the change in y-coordinate for a change in x-coordinate can be written as

Line slope is a measure of the steepness or direction of a line in the coordinate plane.  

m = Δy/Δx

where,m is the slope

Given,

equations of the line

3x - 5y = 2

Moving 3x to RHS
-5y = -3x + 2

y = (3/5)x - 2/5

comparing with slope intercept equation of the line y = mx + c

slope m₁ = 3/5

Now, equation

3x + 5y = -2

moving 3x to RHS

5y = -3x - 2

y = (-3/5)x - 2

comparing with slope intercept equation of the line y = mx + c

slope m₂ = -3/5

Hence, m₁ = 3/5 and m₂ = -3/5 are slope of lines 3x - 5y = 2 and 3x + 5y = -2 respectively.

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Answer: 9 men will build the same wall in 25 hours.

Step-by-step explanation: 1 man will build the same wall in (45*5) hours

9 men will build the same wall in (45*5)/9 =25 hours

The law of detachment states that if a conditional statement is true and its hypothesis is true, then its conclusion must be true. We need to determine which statements exemplify the law of detachment.

The law of detachment is based on the concept of conditional statements. It asserts that if a conditional statement is true and its hypothesis is true, then its conclusion must also be true.

Let's analyze the given statements to see which ones follow the law of detachment: "Odd numbers are divisible by two. 65 is an odd number." - This statement does not exemplify the law of detachment because it does not follow the structure of a conditional statement with a hypothesis and a conclusion.

"There are four, 65 is not divisible by two." - This statement does not exemplify the law of detachment as it does not involve a conditional statement."If an object is a square, then it is a rectangle. If it is a rectangle, then the sum of the measures of its interior angles is 360°. Therefore, if an object is a square, then the sum of the measures of its interior angles is 360°." - This statement exemplifies the law of detachment. It presents two conditional statements and uses the law of detachment to conclude that if an object is a square, then the sum of the measures of its interior angles is 360°.

"If John finishes his homework, then he will go out with his friends. If John goes out with his friends, then they all go to the movies. Therefore, if John finishes his homework, he will go to the movies." - This statement also exemplifies the law of detachment. It presents two conditional statements and uses the law of detachment to conclude that if John finishes his homework, he will go to the movies. In conclusion, statements 3 and 4 demonstrate the law of detachment as they follow the structure of conditional statements and apply the law to derive valid conclusions based on the given hypotheses.

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Answer:

v=d/t

v=340km/85km/h

v=4 km

I hope this helps you

The area of the rectangular base of his friend's tank is 468.75 square inches. So, Option D is correct.

The area of the rectangle is the product of the length and width of a given rectangle.

The area of the rectangle = length × Width

One of Julian's friends also has a rectangular aquarium.

The dimensions of his friend's tank are each exactly 1 1/4 times the dimensions of Julian's tank.

Let x be the length of Julian's tank.

Let y be the width of Julian's tank.

So, the Area of Julian's tank = length × Width

                                               = xy

Since we are given

300 = xy

Now we are given that the dimensions of his friend's tank are each exactly times the dimensions of Julian's tank.

So, the length of his friend's tank = 5/4 x

So, the width of his friend's tank = 5/4 y

So, Area of his friend's tank = ( 5/4 x) (5/4 y)

                                           = 25 / 16 xy

                                           = 25 / 16 (300)

                                           = 468.75

Hence the area of the rectangular base of his friend's tank is 468.75 square inches.

So, Option D is correct.

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Answer:

your answer is -1

Step-by-step explanation:

Answer:

Step-by-step explanation:

The frame --  if it means the box on the outside which has 4 right angles, or the hexagon in the middle which has 0 right angles

a. Pair 2 is selected.

b. Respiratory system, its function is to breathe. Digestive system, its function is to break down food into nutrients.

c. The two systems work together by sharing the region of the mouth and upper throat.

First picture in Pair 2 is Respiratory system, which its function is to breathe. Second picture in Pair 2 is Digestive system, which its function is to break down food into nutrients such as carbohydrates, fats and proteins. The respiratory system takes in oxygen from the air, and also gets rid of carbon dioxide. The digestive system absorbs water and nutrients from the food we consume.

The respiratory system is mainly used to transport air, whilst the digestive system is used to transport fluids and solids, from water and food we eat. The respiratory and the digestive systems share the area of the mouth and upper throat, in which air, fluids, and solids can be mixed.

The digestive system does homeostasis by ensuring that the stomach area has the right pH balance. The body uses both positive and negative mechanisms to perform homeostasis. If the body detects an imbalance, the other systems work together to counterbalance and restore the right equilibrium.

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There are four levels of measurement: nominal, ordinal, interval, and ratio.

The level of measurement of a variable refers to the type or scale of measurement used to quantify or categorize the data. There are four levels of measurement: nominal, ordinal, interval, and ratio.

1. Nominal level: This level of measurement involves categorical data that cannot be ranked or ordered. Examples include gender, eye color, or types of cars. The data can only be classified into different categories or groups.

2. Ordinal level: This level of measurement involves data that can be ranked or ordered, but the differences between the categories are not equal or measurable. Examples include rankings in a race (1st, 2nd, 3rd) or satisfaction levels (very satisfied, satisfied, dissatisfied).

3. Interval level: This level of measurement involves data that can be ranked and the differences between the categories are equal or measurable. However, there is no meaningful zero point. Examples include temperature measured in degrees Celsius or Fahrenheit.

4. Ratio level: This level of measurement involves data that can be ranked, the differences between the categories are equal, and there is a meaningful zero point. Examples include height, weight, or age.

It's important to note that the level of measurement affects the type of statistical analysis that can be performed on the data.

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The problem can be represented in standard form as a linear equation. It involves Abdul selling exotic sweets for $20, with a decrease of 1 customer for every additional $2 he charges.

Let's denote the number of additional $2 Abdul adds as 'x.' For every $2 added, he loses 1 customer. Since he sells to 30 customers when the price is $20, we can set up the equation:

30 - x = number of customers

Here, 'x' represents the number of $2 added to the price, and the expression '30 - x' represents the number of customers after the decrease. Now, let's find the relationship between 'x' and the price. Since each additional $2 leads to a decrease of 1 customer, we can express the relationship as:

Price = $20 + ($2 * x)

Combining the two equations, we obtain the standard form representation:

number of customers = 30 - (Price - $20) / $2

In this form, we can determine the number of customers for any given price by substituting the value of 'Price' into the equation.

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Answer:a

Step-by-step explanation:

Using the subtraction operation, 3458 is 996542 less than a million .

The subtraction operation gives how much a value or number is greater than the other.

Given the values :

The subtraction operation would give us how much 1000000 is greater than 3458

Therefore, the required value is 996542.

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Answer:

it's 4 sooo easy for you and me

The range and standard deviation of your exam scores is 16 and 5.87, respectively.

The range is calculated by finding the difference between the highest and lowest values in a set of data. In this case, the highest score is 91 and the lowest score is 75. Subtracting 75 from 91, we get a range of 16.

The standard deviation measures the variability or spread of a set of data. To calculate the standard deviation, we first need to find the mean (average) of the exam scores.

To find the mean, add up all the scores and divide the sum by the total number of scores. In this case, the sum of the scores is 81 + 75 + 79 + 91 = 326. Since there are 4 scores, we divide 326 by 4 to get a mean of 81.5 (rounded to the nearest tenth).

Next, for each score, subtract the mean and square the result. Then, sum up all these squared differences.

For the score 81: (81 - 81.5)² = 0.25
For the score 75: (75 - 81.5)² = 42.25
For the score 79: (79 - 81.5)² = 6.25
For the score 91: (91 - 81.5)² = 89.25

Summing up these squared differences, we get 0.25 + 42.25 + 6.25 + 89.25 = 138.

To calculate the variance, divide this sum by the number of scores (4) to get 138/4 = 34.5.

Finally, to find the standard deviation, take the square root of the variance. The square root of 34.5 is approximately 5.87 (rounded to the nearest hundredth).

So, the range of the exam scores is 16 and the standard deviation is 5.87.

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This is an exponential expression with 10 as the base and 4 as the exponent.

=============================================

Explanation:

We're dividing 10^8 over 10^4. When dividing like this, we subtract the exponents (numerator minus denominator). The bases must be the same value and they stay at the same value for the final answer as well.

The new exponent is 8-4 = 4 which is how we arrive at the answer 10^4.

Side note: 10^4 = 10,000 = ten thousand

Answer:

Refer to the photo taken.

Step-by-step explanation:

a) The 90% confidence interval for the population mean is approximately (21.52, 23.48).

b) The 95% confidence interval for the population mean is approximately (21.322, 23.678).

c) The 99% confidence interval for the population mean is approximately (20.926, 24.074).

To develop confidence intervals for the population mean, we can use the formula:

Confidence Interval = sample mean ± (critical value * standard error)

where the standard error is equal to the sample standard deviation divided by the square root of the sample size.

a) For a 90% confidence interval, we need to find the critical value corresponding to a confidence level of 90%. The critical value can be obtained from the t-distribution table with (n-1) degrees of freedom. Since the sample size is 56, the degrees of freedom is 56-1 = 55.

From the t-distribution table, the critical value for a 90% confidence interval with 55 degrees of freedom is approximately 1.671.

The standard error can be calculated as:

Standard Error = sample standard deviation / sqrt(sample size)

Standard Error = 4.4 / sqrt(56)

Standard Error ≈ 0.5882

Now we can calculate the confidence interval:

Confidence Interval = 22.5 ± (1.671 * 0.5882)

Confidence Interval = 22.5 ± 0.9816

Confidence Interval ≈ (21.52, 23.48)

b) For a 95% confidence interval, the critical value for 55 degrees of freedom is approximately 2.004 (obtained from the t-distribution table).

Standard Error = 4.4 / sqrt(56) ≈ 0.5882

Confidence Interval = 22.5 ± (2.004 * 0.5882)

Confidence Interval = 22.5 ± 1.178

Confidence Interval ≈ (21.322, 23.678)

c) For a 99% confidence interval, the critical value for 55 degrees of freedom is approximately 2.678 (obtained from the t-distribution table).

Standard Error = 4.4 / sqrt(56) ≈ 0.5882

Confidence Interval = 22.5 ± (2.678 * 0.5882)

Confidence Interval = 22.5 ± 1.574

Confidence Interval ≈ (20.926, 24.074)

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Answer:

$183.3

Step-by-step explanation:

Ruth uses healthy credit to finance $2,200 for a hearing aid how much would she have to pay each month to pay back the loan in exactly 1 year

Ruth took a loan of $2,200

1 year = 12 months

Hence, the amount she would be paying monthly is calculated as:

$2,200/12 months

= $2,200/12

= $183.33333333

Approximately = $183.3

Therefore, Ruth would be paying $183.3 monthly.

The proportion that could be used to determine if the figures represent a dilation is Two-thirds = StartFraction 5 Over 8 EndFraction.

To determine if the figures represent a dilation, we need to compare the ratios of corresponding sides of the two rectangles. In a dilation, corresponding sides are proportional, meaning that the ratios of their lengths are equal.

In this case, we have the first rectangle with a length of 5 and a width of 2, and the second rectangle with a length of 8 and a width of 3. By comparing the lengths, we have the proportion Two-thirds = StartFraction 5 Over 8 EndFraction.

If the proportion holds true, it means that the lengths are proportional and the figures represent a dilation. The given proportion represents the relationship between the lengths of the corresponding sides of the rectangles, and if it is satisfied, it indicates that the figures are dilations of each other.

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An equation to find the number of treats t that was in the original package is t=10+4(15).

First, you set aside the 10 and that is the start of your equation.

We need to find an equation to find the number of treats t that was in the original package.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now, t=10+4(15)

⇒t=10+60

⇒t=70

Therefore,  an equation to find the number of treats t that was in the original package is t=10+4(15).

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Answer:

8b

Step-by-step explanation:

You can factor the b-term out since b-term exists for all terms in the expression. By factoring out, you are basically dividing the factored term off and put it outside of the bracket, thus:

\(\displaystyle{16b-8b=\left(16-8\right)b}\)

Then evaluate and simplify:

\(\displaystyle{\left(16-8\right)b=8\cdot b}\\\\\displaystyle{=8b}\)

To do simple subtraction, use the - (minus sign) arithmetic operator.

6N + 10

---------- - 5  =

  2

3N + 5 - 5

3N

so yes, you will always get triple the original number. or 3N.

A final step should be to divide the last difference by 3, which gets you

the original number back.

Two positive integers added together are always positive.
When two negative integers are added together, the result is always negative.
The result of subtracting two positive integers might be either positive or negative.
The result of subtracting two negative integers might be either positive or negative.

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Answer:

slope m = - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - x + 7 ← is in slope- intercept form

with slope m = - 1

Data:

Loan=$278 at 10%

A simple interest is calculated for payments on the initial capital.

If the total interest was $174.12.

If the interest is on a year. You calculated the interes of one year. The 10% of $278:

In a year the interest is $27.8.

Then, $174.12 divided into $27.8 is the number of years of the loan: