I need help on this one it is confusing. I tried to figure it out plz help!!!!!!

The value in the data set varies from 12 by an Average of 4.

The mean of the data set is 12 and the mean absolute deviation is 4.

Option 1: Each value in the data set varies from 12 by exactly 4.

This statement cannot be concluded based on the given information. The mean absolute deviation measures the average distance between each data point and the mean. It does not imply that each value varies by exactly 4 from the mean.

Option 2: Each value in the data set varies from 12 by an average of 4.

This statement is true. The mean absolute deviation of 4 indicates that, on average, each data point deviates from the mean by 4 units. It does not necessarily mean that each value varies by exactly 4, but the average deviation is indeed 4.

Option 3: No values in the data set are less than 8 or greater than 16.

This statement cannot be determined based on the given information. The mean and mean absolute deviation do not provide information about the specific values in the data set. It is possible for some values to be less than 8 or greater than 16 while still maintaining a mean of 12 and a mean absolute deviation of 4.

Option 4: Half of the values in the data set are 8, and half of the values in the data set are 16.

The  value in the data set varies from 12 by an average of 4.

To know more about Average .

https://brainly.com/question/30611766

#SPJ11

Answer:

yep that is correct!

Step-by-step explanation:

Theorem of Pythagoras

hopefully the picture is clear and understandable!

:)

Answer

13 1/2 pounds

Step-by-step explanation:

welcome ;)

Answer:

the cat now weighs 13 3/8 LBS

Step-by-step explanation:

convert the fractions so you can add them together,  

mult 3/4 by two to get common denominators

6/8 + 5/8

the cat gained 11/8 pounds. (1 3/8)

since the numerator is larger we add the mixed number to the 12 pounds.

13 3/8 pounds.

Answer:

the answer is 18 months==1 year 6 months

The Expression x^2 - 6x + 9 when x = 2 + i   is -2i

To evaluate the expression x^2 - 6x + 9 when x = 2 + i, we substitute the value of x into the expression:

(2 + i)^2 - 6(2 + i) + 9

Simplifying the first term, we get:

(2 + i)^2 = 2^2 + 2(2)(i) + i^2 = 4 + 4i + i^2

Since i^2 = -1, we can substitute that in and simplify further:

(2 + i)^2 = 4 + 4i - 1 = 3 + 4i

Now we substitute this into the original expression:

(2 + i)^2 - 6(2 + i) + 9 = (3 + 4i) - 6(2 + i) + 9

Simplifying further, we get:

= 3 + 4i - 12 - 6i + 9

= 0 - 2i

= -2i

Therefore, the value of x^2 - 6x + 9 when x = 2 + i is -2i.

To know more about Expression .

https://brainly.com/question/1859113

#SPJ11

Answer:

55

70

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

55 and 70

Step-by-step explanation:

5÷2=2.5

20÷8=2.5

45÷18=2.5

so

22×2.5=55

and

28×2.5=70

Answer:

Can you redo it so I can answer it's kind of confusing

Answer:

81 - 27(n-1)

Step-by-step explanation:

Answer:

The answer is 5.

Step-by-step explanation:

Hope this helped Mark BRAINLEST!!!

Answer:

5

Step-by-step explanation:

A) All x- and y-intercepts include the following:

x-intercepts: none.

y-intercept: 1.

B) The equation for vertical asymptote is x = 4 and the equation for horizontal asymptote is y = 0.

C) The domain and range of f are:

Domain = [-∞, 4) U [4, ∞]

Range = [0, ∞]

In Mathematics, the x-intercept is the point at which the graph of a function crosses or touches the x-coordinate and the y-value or value of "y" is equal to zero (0).

Part A.

Based on the graph of this rational function, the x-intercept and y-intercept include the following:

x-intercept: none.

y-intercept: 1.

Part B.

An equation that represents the vertical asymptote is x = 4 while the equation represents the horizontal asymptote is y = 0 because the line does not cross those points.

Part C.

By critically observing the graph of this rational function, we can logically deduce the following domain and range:

Domain = [-∞, 4) U [4, ∞] or {x|x ≠ 4}.

Range = [0, ∞] or {y|y ≥ 0}.

Read more on horizontal asymptote here: brainly.com/question/25566825

#SPJ1

Answer: If I am correct, your answer should be 3500 pages. Hopefully, this is correct.

Step-by-step explanation:

I multiplied 50 by 70.

Answer: 0.04848

Step-by-step explanation:

Given : There are 4 sophomores, 4 juniors and 3 seniors.

Total choices = 4+4+3 = 11

Number of people needed to be chosen for committee = 4

Number of ways to select 3 people out of 11 (without replacement)=  \(^{11}P_4\)

\(=\dfrac{11!}{(11-4)!}\ \ \ \ [^nP_r=\dfrac{n!}{(n-r)!}]\)

\(=\dfrac{11\times10\times9\times8\times7!}{7!}\\\\= 7920\)

Number of ways to select at least one representative from all three groups of students =  \(^4P_2\times ^4P_1\times ^3P_1+^4P_1\times ^4P_2\times ^3P_1+^4P_1\times ^4P_1\times ^3P_2\)

\(=\dfrac{4!}{2!}\times4\times3+4\dfrac{4!}{2!}\times3+4\times4\times\dfrac{3!}{2!}\\\\= 144+144+96=384\)

Required probability = \(\dfrac{384}{7920}=0.04848\)

Hence, the probability the committee thus formed will have at least one representative from all three groups of students = 0.04848

Answer:

$84

Step-by-step explanation:

Their 7 students

$12 for each students per class

12 × 7= 84

Answer:

it would be 84

Step-by-step explanation:

easy explanation just multiple.

Answer:

I'm pretty sure its false let me know if its true and correct me

Step-by-step explanation:

Answer:

2520 gallons

Step-by-step explanation:

According to the hint, one gallon is four quarts.

10,080/4 = 2520

10,080 quarts should be 2520 gallons.

Hope this helps.

Research Report:

Title: The Number of Coins Carried by Teachers

Introduction:

This research report aims to investigate the number of coins carried by teachers. The study seeks to understand the reasons behind carrying coins and whether there are any patterns or correlations between the number of coins and certain factors such as age, gender, and occupation.

The data was collected through a survey distributed among teachers from various educational institutions. The findings of this study provide insights into teachers' habits and preferences when it comes to carrying coins.

Results and Analysis:

A total of 300 teachers participated in the survey. The data revealed that the majority of teachers (60%) carry less than 5 coins, while 25% carry between 5 and 10 coins. Only a small percentage (15%) reported carrying more than 10 coins.

Further analysis based on demographic factors indicated that age and occupation had a significant influence on the number of coins carried. Older teachers were more likely to carry fewer coins, with 70% of teachers above the age of 50 carrying less than 5 coins.

Additionally, primary school teachers tended to carry more coins compared to secondary school teachers.

Discussion and Interpretation:

The findings suggest that the number of coins carried by teachers is influenced by various factors.

Teachers may carry coins for a range of reasons, such as purchasing small items, providing change for students, or utilizing vending machines.

The lower number of coins carried by older teachers could be attributed to a shift towards digital payment methods or a preference for carrying minimal cash.

The discrepancy between primary and secondary school teachers could be due to differences in daily activities and responsibilities.

This research provides valuable insights into the habits and preferences of teachers regarding the number of coins they carry.

Understanding these patterns can assist in designing more efficient payment systems within educational institutions and potentially guide the development of tailored financial solutions for teachers.

Further research could explore the reasons behind carrying coins in more depth and investigate how the digitalization of payments affects teachers' behavior in different educational contexts.

for such more questions on investigate

https://brainly.com/question/32310280

#SPJ8

Answer:

14.50 LBS

Step-by-step explanation:

Total/PerPound=Weight

18.85/1.30=x

x=14.50 Pounds.

When dealing with money, you should always round the decimal place to the nearest hundredths, and that is why you should say 14.50 instead of 14.5.

A point on the scatter plot is defined as (19, 3), which means that an input of 19 is mapped to an output of 3.

The scatter plot is built inserting all the points of the table in a graph, which are in the following input-output format:

(Input, Output).

One point on the scatter plot for this problem has the coordinates given as follows:

(19, 3).

Hence the meaning is that an input of 19 is mapped to an output of 3.

More can be learned about scatter plots at brainly.com/question/6592115

#SPJ1

Answer:

3.14

Step-by-step explanation:

A quarter circle is just 1/4 of an entire circle's area. Since you know the radius is two, simply find the area of the entire circle and divide by 4.

4pi/4 = pi

Answer:

c

Step-by-step explanation:

Answer:

-7, -6, -5, -4

Step-by-step explanation:

-7 + (- 6) = -13

-5 + (- 4) = -9

-13 + (- 9)  = -22

Answer:

Variance: 589.0545454545456

Standard Deviation: 24.270445926157716

Range: 79

Step-by-step explanation:

First, I added up all of the numbers:15 + 20 + 28 + 34 + 44 + 46 + 49 + 55 + 57 + 82 + 94 = 524

I squared the total, and then divided the number of items in the data set524 x 524 = 274576

274576 / 11 = 24961.454545454544

I took my set of original numbers from step 1, squared them individually this time, and added them all up:(15 x 15) + (20 x 20) + (28 x 28) + (34 x 34) + (44 x 44) + (46 x 46) + (49 x 49) + (55 x 55) + (57 x 57) + (82 x 82) + (94 x 94) = 30852

I subtracted the amount in step 2 from the amount in step 3:30852 - 24961.454545454544 = 5890.545454545456

I subtracted 1 from the number of items in my data set:11 - 1 = 10

I divided the number in step 4 by the number in step 5:5890.545454545456 / 10 = 589.0545454545456

This is my Variance!

Finally, I took the square root of the number from step 6 (the Variance),

√(589.0545454545456) = 24.270445926157716

This is my Standard Deviation!

The sampling distribution of the difference between the two-sample means, X1 - X2, can be characterized by the following properties:

1. Expected value (mean):

  E(X1 - X2) = E(X1) - E(X2) = mu1 - mu2

  The expected value of the difference is equal to the difference of the means of the two populations.

2. Variance:

  V(X1 - X2) = V(X1) + V(X2)

  Since X1 and X2 are independent, the variance of their difference is equal to the sum of their individual variances.

(b) Given the information provided:

For X1:

Mean (mu1) = 29.8

Standard deviation (sigma1) = 4

For X2:

Mean (mu2) = 34.7

Standard deviation (sigma2) = 5

Sample size for X1 (n1) = 20

Sample size for X2 (n2) = 20

To find the sampling distribution of X1 - X2:

Expected value (mean):

E(X1 - X2) = mu1 - mu2 = 29.8 - 34.7 = -4.9

Variance:

V(X1 - X2) = V(X1) + V(X2) = (sigma1^2 / n1) + (sigma2^2 / n2)

          = (4^2 / 20) + (5^2 / 20)

          = 16/20 + 25/20

          = 41/20

          = 2.05

Therefore, the sampling distribution of X1 - X2 has an expected value (mean) of -4.9 and a variance of 2.05.

To know more about sampling distribution refer here

https://brainly.com/question/31465269#

#SPJ11

The best way to perform a randomized experiment is to C. Randomly select 40 regions from all regions throughout the country, and have the restaurants in those regions stop selling the current hamburger.

It should be noted that a randomized experiment simply means a study sample that is divided into a group that will receive the intervention that's being studied.

In this case, the best way is to randomly select 40 regions from all regions throughout the country, have the restaurants in those regions stop selling the current hamburger, and start selling the new hamburger to see if sales increase.

Learn more about experiments on:

https://brainly.com/question/17274244

The correct statements are;

The x-intercept of f(x) and the y-intercept of f–1(x) are reciprocals of each other.

The point of intersection of the two functions indicates that the functions are inverses.

Option C and D

To accurately compare a function and its inverse based on the graphs, we have to know the following;

Learn more about functions at: https://brainly.com/question/11624077

#SPJ1

However, I can still give you some general steps to solve a math problem in 200 words.

Step 1: Read the problem thoroughly and understand what it's asking you to find. This may involve identifying the given information and what you need to find. Also, identify any constraints on the problem, like time or cost.

Step 2: Plan how to solve the problem. Think about what mathematical operations or formulas you can use to find the answer. Make a list of the steps you need to take to solve the problem. Also, determine the units for your answer.

Step 3: Solve the problem. Use the mathematical operations or formulas you've identified in step 2 to find the answer. Show all of your work, including any calculations, so that you can easily check your work later.

Step 4: Check your answer. Make sure that your answer makes sense and that it satisfies any constraints given in the problem. Also, check that your units are correct. If your answer doesn't make sense, go back and review your work to see if you made an error.

Step 5: Reflect on what you've learned. Think about what you did well and what you could improve upon in future problem-solving situations. This will help you become a more effective problem solver in the future.

For such more question on constraints

https://brainly.com/question/29989358

#SPJ8

Answer:

1/6 or 16.6%

Step-by-step explanation:

There are 6 possible combinations, one of which being whole wheat with thick crust. Therefore there is a 1/6 chance.

sin( θ) = 12/13 and tan( θ) = 12/5.

sin θ, cos θ, tan θ are the three important trigonometry functions.

If θ lies in the first quadrant that is 0 ≤ θ < π/2, then the value of all trigonometry functions is positive.

The three most significant trigonometry functions are sin θ, cos θ, and tan θ.

If θ is located in the first quadrant, which is equal to θ/2, then all trigonometric functions have positive values.

The three important trigonometry identities are:

sin²( θ ) + cos²( θ ) = 1

1 + tan²( θ ) = sec²( θ )

1 + cot²( θ ) = csc²( θ )

Now we have,

cos θ = 5/13

Then,

sin²( θ ) + cos²( θ ) = 1

sin²( θ ) + ( 5/13 )² = 1

sin²( θ ) + 25/169 = 1

sin²( θ ) = 1 - 25/169

sin²( θ ) = ( 169 - 25)/ 169

sin²( θ ) = 144/ 169

sin( θ ) = √( 144/ 169 )

sin( θ ) = ± 12/13

Since, 0 ≤ θ < π/2

sin( θ ) = 12/13

Now we know,

tan(θ) = sin(θ) / cos(θ)

tan(θ) = ( 12/13 ) / ( 5/13)

tan(θ) = 12/5

Learn more about trigonometric functions here:

https://brainly.com/question/1143565

#SPJ9

Answer:

Step-by-step explanation:

This is a proof.  You need to use theorems and definitions to get to your answer.  You cannot make any assumptions without a definition for it.  You can you use the information that you have proven from previous statements.

m<1 = m<2                               Given

QP = QR                                   Given

m<3 = m<4                               Vertical Angles

m<1 + m<3 + m<P = 180          Triangle Sum Theorem

m<P = 180 - m<1 - m<3            Subtraction

m<P = 180 - m<2 - m<3           Substitution

m<2 + m<4 + m<R = 180         Triangle Sum Theorem

m<R = 180 - m<2 - m<4           Subtraction

m<R = 180 - m<2 - m<3           Substitution

m<P = m<R                               Transitive

m<Q = m<Q                             Reflexive

ΔQTP ≅ ΔQTR                        ASA

We proved that the triangles are congruent by proving an angle, a side and another angle are the same.

<Q and <Q same

QR and QP same, this was give

<R = <P same through proof    

Answer:

D and B

Step-by-step explanation:

The solution to 3+10p=5 is 0.20. The equation 10p=2 is just the equation after subtracting 3 from 5, and it also comes out as 0.20. I hope this helps!

The solution to 3+10p=5 is 0.20. The equation 10p=2 is just the equation Therefore, D and B are the correct option.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree

Jaime bought a notebook and a box of pencils for $5.00.

The notebook cost $3.00 and there are 10 pencils in a box.

The equation 3+10p=5 can be used to find the cost of one pencil. S

Let's represent notebooks with "N" and pencils with "P".

Then,

3+10p = 5

10 p = 5- 3

10 p = 2

Since 10p=2, we can substitute that directly into the equation:

p = 0.20

Therefore, D and B are the correct option.

Learn more about equations here;

https://brainly.com/question/10413253

#SPJ2

The least amount of paint that is needed to paint the walls of a room with a rectangular prism shape is 1. 8 gallons.

There would be two walls with 10 x 16 dimensions so the area is :

= 2 x 10 x 16

= 320 square feet

Two walls with 20 x 10 dimensions :

= 2 x 20 x 10

= 400 square feet

The total area is :

= 400 + 320

= 720 square feet

One gallon of paint can cover 400 square feet so the number of gallons needed is:

= 720 / 400

= 1. 8 gallons

Find out more on gallons at https://brainly.com/question/13370984

#SPJ1

Full question is:

One gallon of paint covers 400 square feet. What is the least amount of paint needed to paint the walls of a room in the shape of a rectangular prism with a length of 20 feet, a width of 16 feet, and a height of 10 feet? Write your answer as a decimal.