Find the perimeter and area of a regular octagon that has a radius of 10m.

Answer:

C . y(18x-9w-12) ..............

Answer:

The width of the actual fence is 90ft

Step-by-step explanation:

If 2in = 10ft, you want to find the scale factor. To do this, you need to divide 10/2, so for every 5ft, it is 1in. Now, you would take how many inches you have and multiply it by 5. (in our case, 18in)

18 x 5 = 90.

So the actual fence length is 90ft.

The correlation analysis indicates a moderate positive relationship between Column X and Column Y.

To perform correlation analysis, we can use the Pearson correlation coefficient (r) to measure the linear relationship between two variables, in this case, Column X and Column Y. The value of r ranges from -1 to 1, where 1 indicates a perfect positive correlation, -1 indicates a perfect negative correlation, and 0 indicates no correlation.

Here are the steps to calculate the correlation coefficient:

Calculate the mean (average) of Column X and Column Y.

Mean(X) = (10+6+39+24+35+12+33+32+23+10+16+16+35+28+5+22+12+44+15+40+46+35+28+9+9+8+35+15+34+16+19+17+21) / 32 = 24.4375

Mean(Y) = (37+10+18+12+11+34+26+9+42+24+40+1+39+24+42+7+17+17+27+47+35+14+38+18+17+22+12+30+18+43+24+45+24) / 32 = 24.8125

Calculate the deviation of each value from the mean for both Column X and Column Y.

Deviation(X) = (10-24.4375, 6-24.4375, 39-24.4375, 24-24.4375, ...)

Deviation(Y) = (37-24.8125, 10-24.8125, 18-24.8125, 12-24.8125, ...)

Calculate the product of the deviations for each pair of values.

Product(X, Y) = (Deviation(X1) * Deviation(Y1), Deviation(X2) * Deviation(Y2), ...)

Calculate the sum of the product of deviations.

Sum(Product(X, Y)) = (Product(X1, Y1) + Product(X2, Y2) + ...)

Calculate the standard deviation of Column X and Column Y.

StandardDeviation(X) = √[(Σ(Deviation(X))^2) / (n-1)]

StandardDeviation(Y) = √[(Σ(Deviation(Y))^2) / (n-1)]

Calculate the correlation coefficient (r).

r = (Sum(Product(X, Y))) / [(StandardDeviation(X) * StandardDeviation(Y))]

By performing these calculations, we find that the correlation coefficient (r) is approximately 0.413. Since the value is positive and between 0 and 1, we can conclude that there is a moderate positive relationship between Column X and Column Y.

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Answer:

A and C

Step-by-step explanation:

Answer:

4×4×4=64

Step-by-step explanation:

Answer:

25/6

I don't really know how I got it, sorry I can't help with that

Answer:

I think its 11x/10

Step-by-step explanation:

a)

This is a geometric sequence, this means that each value of the sequence is multiplied by the common ratio to determine the next number.

For the sequence {3,-15,75}

Divide one of the given numbers by the number before it on the sequence to determine the common ratio

The common ratio for this sequence is r=-5

b)

a is the first value of the sequence

r is the common ratio

k is the place on the sequence of the required value

You can calculate said value using

c)

For

a=3

r=-5

k=5

The value fo the sequence is

✦ ✦ ✦ Beep Boop - Blu Bot! At Your Service! Scanning Question . . .

      Code: Green! Letters, Numbers, and Variables Received! ✦ ✦ ✦

--------------------------------------------------------------------------------------------------------------Question: x3+y3+z3=k, with k being all the numbers from one to 100

--------------------------------------------------------------------------------------------------------------Answer: X = -80538738812075974, Y = 80435758145817515, and Z = 12602123297335631.

-------------------------------------------------------------------------------------------------------------

        X = -80538738812075974, Y = 80435758145817515, and Z = 12602123297335631.

There are 22 minutes does Drake still need to practice the trombone.

We have to given that;

Drake must practice the trombone for at least 30 minutes a day.

So far, he has practiced for 8 minutes.

Hence, We get;

Number of minutes does Drake still need to practice the trombone is,

⇒ 30 - 8

⇒ 22 minutes

Thus, There are 22 minutes does Drake still need to practice the trombone.

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Answer:

THE ANSWERE IS POINT B

And the scale factor is 2/6 I'm not so sure of this one :-[

Step-by-step explanation:

Please give me brainliest I did help you right?

A Total of 144 small cups can be filled with the water from the cooler before it's empty.

The cooler has 4 1/2 gallons of water, which can be written as 9/2 gallons. Each small cup holds 1/32 gallon. To find the number of small cups that can be filled with the water from the cooler, we need to divide the total amount of water by the amount of water in each cup.

9/2 ÷ 1/32 = (9/2) * (32/1) = 144 small cups.

Therefore, 144 small cups can be filled with the water from the cooler before it's empty.

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Complete Question:

A cooler is filled with 4 1/2 gallons of water. There are small cups that each hold 1/32 gallon.

How many small cups can be filled with the water from the cooler before it's empty?

Answer:

a) we have the numbers 0, 2, 3, 5, 5. The mean and the median are both 3

b) we have the numbers 0, 0, 3, 5, 7. The mean and the median are both 3

In both cases the mean and the median are 3, but the mode differs. The mean and the median do not uniquely determine the mode.

Step-by-step explanation:

AnswerIf the number of data points is even, the median is the average of the two middle data points in the list.:

Step-by-step explanation:

Answer:

2 fl oz

Step-by-step explanation:

Answer:

4 tablespoons is = to 2 fl oz

Answer:

the answer to this question is c

Answer:

The numbers; 19.0 , 19.00 and 19.000 are same value as the number 19

Step-by-step explanation:

Here in this question, we simply want to write decimals which would have same value as the number 19 when written.

Let’s start with 19.0

This is absolutely same value as the number 19

Furthermore let’s write 19.00

This is also same value as the number 19

Lastly;

19.000

This is same value as the number 19

Answer:

Step-by-step explanation:

$603.5

Answer:39.65

Step-by-step explanation:

turn 6.5% to 0.065

610 x 0.065=39.65

\(y=3x-2\)

The slope of \(y=3x-2\)  would be \(3\).

The standard form would be written as  \(3x-y=2\).

Hope this helps!

Step-by-step explanation:

12:18

12 to 18

12/18 = 2/3

Answer:

x = 10

Step-by-step explanation:

We can find the distance, d, between two points using the distance formula, which is given by:

\(d=\sqrt{(y_{2}-y_{1})^2+(x_{2}-x_{1})^2 }\), where

Step 1:  Plug in values for variables in the distance formula and simplify:

We can plug in 13 for d, (5, -8) for (x1, y1), and (x, 4) for (x2, y2) to find x

\(13=\sqrt{(4-(-8))^2+(x-5)^2}\\ 13=\sqrt{(4+8)^2+(x-5)^2}\\ 13=\sqrt{(12)^2+(x-5)^2}\\ 13=\sqrt{144+(x-5)^2}\)

Step 2:  Square both sides:

\(13^2=(\sqrt{144+(x-5)^2})^2 \\169=144+(x-5)^2\)

Step 3:  Subtract 144 from both sides:

\((169=144+(x-5)^2)-144\\25=(x-5)^2\)

Step 4:  Take the square root of both sides:

\(\sqrt{25}=\sqrt{(x-5)^2}\\ 5=x-5\)

Step 5:  Add 5 to both sides to find x:

\((5=x-5)+5\\10=x\)

Thus, in order to have a distance of 13 between the (5, -8) and (x, 4), x must equal 10.

Optional Step 6:  Plug in 10 for x in the distance formula and check that you get 13 on both sides of the equation when simplifying:

\(13=\sqrt{(4-(-8))^2+(10-5)^2}\\ 13=\sqrt{(4+8)^2+(5)^2}\\ 13=\sqrt{(12)^2+25}\\ 13=\sqrt{144+25}\\ 13=\sqrt{169}\\ 13=13\)

Thus, our answer is correct and x is 10.

Answer:

Area of both triangles = 8*5 = 40

Rectangle Area = 8*18 = 144

Semi Circle Area = Pi*r^2 / 2 = (3.14159*81)/2 = 127.34

40 + 144 + 127.34 = 311.34 square feet

answer is B

Step-by-step explanation:

Answer:

It’s 0,0

Step-by-step explanation: it only crosses the origin once and on the 0 so.

Answer:

0

Step-by-step explanation:

The line crosses at the origin.

v^T proj_v(x) = 0, so v^T T(x) = v^T x - v^T proj_v(x) = v^T x, which is not zero unless x is on the line spanned by v.
Therefore, the kernel of T is precisely the line spanned by v, as desired.

Let's start with understanding what the kernel of a linear transformation is. The kernel, also known as the null space, is the set of all vectors that get mapped to the zero vector by the transformation.
In this case, the kernel is the line spanned by the vector ⎡ ⎣ −1 1 2 ⎤ ⎦. This means that any vector on this line will get mapped to the zero vector by the linear transformation we're looking for.
One example of a linear transformation that has this kernel is the projection onto the plane orthogonal to ⎡ ⎣ −1 1 2 ⎤ ⎦. This transformation takes any vector in R^3 and projects it onto the plane that is perpendicular to the given vector.
To see why this works, let's call our given vector v = ⎡ ⎣ −1 1 2 ⎤ ⎦. We can find a basis for the plane orthogonal to v by finding the orthogonal complement of v. This is the set of all vectors w in R^3 that satisfy the equation v^T w = 0.
If we solve this equation, we get the set of all vectors of the form ⎡ ⎣ a -a/2 b ⎤ ⎦, where a and b are any real numbers. This is a basis for the plane orthogonal to v.
Now, we can define our linear transformation T as follows: T(x) = x - proj_v(x), where proj_v(x) is the projection of x onto the plane orthogonal to v.
Since proj_v(x) is in the plane orthogonal to v, it is also orthogonal to v. This means that v^T proj_v(x) = 0, so v^T T(x) = v^T x - v^T proj_v(x) = v^T x, which is not zero unless x is on the line spanned by v.
Therefore, the kernel of T is precisely the line spanned by v, as desired.

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Answer:

25.12

Step-by-step explanation:

Answer:

the answer is symmetry.

a) The relevant population is the heavy soft-drink users in the given case, and the appropriate sampling design that should be used is  stratified random sampling. The list of all heavy soft-drink users is the sampling frame.

b) Cluster sampling refers to a sampling design where population is divided into naturally occurring groups and a random sample of clusters is chosen.

The advantages are efficient, easy to perform, and used when the population is widely dispersed. The disadvantages are sampling errors, have lower level of precision, and have the standard error of the estimate.

a) The relevant population for the public relations research department to investigate the initial reactions of heavy soft-drink users to a new all-natural soft drink is heavy soft-drink users. The appropriate sampling design that can be used to investigate the issues is stratified random sampling.

Stratified random sampling is a technique of sampling in which the entire population is divided into subgroups (or strata) based on a particular characteristic that the population shares. Then, simple random sampling is done from each stratum. Stratified random sampling is appropriate because it ensures that every member of the population has an equal chance of being selected.

Moreover, it ensures that every subgroup of the population is adequately represented, and reliable estimates can be made concerning the entire population. The list of all heavy soft-drink users can be the sampling frame.

b) Cluster sampling is a type of sampling design in which the population is divided into naturally occurring groups or clusters, and a random sample of clusters is chosen. The elements within each chosen cluster are then sampled.

The advantages of cluster sampling are:

The disadvantages of cluster sampling are:

A situation where cluster sampling would be appropriate is in investigating the effects of a new medication on various groups of people. In this case, the population can be divided into different clinics, and a random sample of clinics can be selected. Then, all patients who meet the inclusion criteria from the selected clinics can be recruited for the study. This way, the study will be less expensive, and it will ensure that the sample is representative of the entire population.

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Answer:

Y= 2.3033x + 160.71

Step-by-step explanation:

The value of the slope m is 2.55 and the y-intercept of the line is 135.

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + b

Where m is the slope of the line and b is the y-intercept of the line.

From the table, the two points will be (60, 288.1) and (100, 390).

Then the slope of the line will be

m = [(390 - 288.1) / (100 - 60)]

m = 101.9 / 40

m = 2.55

Then the equation of the line will be

y = 2.55x + b

The equation is passing through (100, 390). Then the value of b will be

390 = 2.55 (100) + b

390 = 255 + b

b = 135

Then the equation of the line will be

y = 2.55x + 135

The value of the slope m is 2.55 and the y-intercept of the line is 135.

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