The weights of certain machine components are normally distributed with a mean of 8.61 g and a standard deviation of 0.07 g. Find the two weights that separate the top 3% and the bottom 3%. Theses weights could serve as limits used to identify which components should be rejected. Answer 1. 8.46 g and 8.80 g 2. 8.58 g and 8.64 g 3. 8.60 g and 8.62 g
The correct answer is option 1: 8.46 g and 8.80 g. The given information is: The weights of certain machine components are normally distributed with a mean of 8.61 g and a standard deviation of 0.07 g. We need to find the two weights that separate the top 3% and the bottom 3%.Solution:The given distribution is a normal distribution, which is continuous and symmetric about its mean µ= 8.61 g. The standard deviation is given as σ= 0.07 g. Here, it is required to calculate the two weights that separate the top 3% and the bottom 3%.
Here, we can use the Z-score formula which is given by: Z = (X - µ)/σWhere, Z is the standardized score; X is the raw score or variable, µ is the mean of the population, and σ is the standard deviation of the population.Using the Z-score formula, we can find the Z-scores for the given data as follows: For top 3%, the Z-score is Z₃ = 1.88 (approx.)For bottom 3%, the Z-score is Z₁ = -1.88 (approx.)
The value of Z is calculated using the Z-table, which gives the area to the left of the Z-score. Since the area required is in the tails of the distribution, we can calculate it using the following relation:area in the tail = (100% - desired area)/2area in the tail = (100% - 3%)/2 = 48.5%Using the Z-score formula, we can find the two weights that separate the top 3% and the bottom 3% as follows:X = Zσ + µFor top 3%: X₃ = Z₃σ + µ = 1.88(0.07) + 8.61= 8.80 g (approx.)X₁ = Z₁σ + µ = -1.88(0.07) + 8.61= 8.46 g (approx.)Therefore, the two weights that separate the top 3% and the bottom 3% are 8.46 g and 8.80 g.
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Answer:
x: 1
y: 20
x: 2
y: 17
x: 3
y: 14
x: 6
y: 5
Simplity (4.5)(5)(-2)
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The potters want to buy a small cottage costing $118,000 with annual insurance and taxes of $710. 00 and $2800. 0. They have saved $14,000. 00 for a down payment, and they can get a 5%, 15 year mortgage from a bank. They are qualified for a home loan as long as the total monthly payment does not exceed $1000. 0. Are they qualified?
The potters are qualified for the home loan as their total monthly payment is $831.02, which is less than $1000.00.
The total cost of the cottage along with the annual insurance and taxes is $118,000 + $710 + $2800 = $121,510.
The down payment made by the potters is $14,000. Therefore, the amount to be financed through a mortgage is $121,510 - $14,000 = $107,510.
Using the formula for the monthly payment of a mortgage, which is given by:
M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1]
where P is the principal (amount to be financed), i is the monthly interest rate, and n is the total number of monthly payments.
For a 5%, 15-year mortgage, the monthly interest rate is 0.05/12 = 0.0041667, and the total number of monthly payments is 15 x 12 = 180.
Plugging in the values, we get:
M = $107,510 [ 0.0041667 (1 + 0.0041667)^180 ] / [ (1 + 0.0041667)^180 - 1 ]
M = $831.02
Therefore, the total monthly payment for the mortgage and the annual insurance and taxes is $831.02 + $59.17 + $233.33 = $1123.52, which is more than the maximum allowed payment of $1000.00. Hence, the potters are qualified for the home loan.
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write it as an equation show all work
For a field trip 4 students rode in cars and the rest filled nine busses. How many students were in each bus if there were 472 students on the trip.
ps. i will give brainlest an 100 points
Answer:52 in each buss
Step-by-step explanation: 472 - 4 (the students in the car)= 468
468 divide by 9(how many busses)
= 52 (students in each buss)
9x + 4=472
9x=468
X= 52
-3/2(x - 5) = -12.
Answer:
x=13
Step-by-step explanation:
please help its timed i will give brainlyest
Answer:
20
Step-by-step explanation:
Long Division, cancel the zeroes, then 80/4 which is 20
Answer:
20
Step-by-step explanation:
8000/400= 20
Show that the equation x ^ 3 + 6x - 10 = 0 has a solution between x = 1 and x = 2
Find the surface area of a cylinder with a height of 8 m and a base radius of 4 m.Use the value 3.14 for π, and do not do any rounding.Be sure to include the correct unit.
Explanation
We are given the following:
\(\begin{gathered} height=8m \\ radius=4m \\ \pi=3.14 \end{gathered}\)We are required to determine the surface area of a cylinder. This can be achieved by using the formula:
\(\begin{gathered} Area=2\pi r(r+h) \\ Area=2\times3.14\times4(4+8) \\ Area=2\times3.14\times4\times12 \\ Area=301.44m^2 \end{gathered}\)Hence, the answer is 301.44m².
Let's denote a lottery as (X₁, P₁; X2, P2; ; Xm, Pm), where Xi and Pi indicate the reward magnitude = and probability of each potential outcome. A decision-maker prefers B ($5000, 1.00) to A = ($0, 0.01; $25000, 0.04; $5000, 0.95) and prefers C = ($25000, 0.04; $0, 0.96) to D = ($5000, 0.05; $0, 0.95). Prove that Expected Utility Theory cannot account for the preference. Note: you can assume that the initial endowment is $0 and the utility of $0 is zero.
Thus, even if the expected value of option A is higher than the expected value of option B, EUT cannot account for the preference.
Expected Utility Theory (EUT) asserts that a decision-maker's utility function can be used to predict their preferences between uncertain options.
If a decision-maker has an ordered preference ranking of lotteries, according to EUT, these rankings would correspond to their expected utility rankings.
Nevertheless, some examples demonstrate that EUT may fail to predict preferences. Let's denote a lottery as
(X₁, P₁; X2, P2; ; Xm, Pm),
where Xi and Pi indicate the reward magnitude and probability of each potential outcome.
A decision-maker prefers B ($5000, 1.00) to
A = ($0, 0.01; $25000, 0.04; $5000, 0.95) and prefers
C = ($25000, 0.04; $0, 0.96) to
D = ($5000, 0.05; $0, 0.95).
However, EUT cannot account for these preferences.
The utility of the three alternatives is calculated as follows:
U(B) = $5000
U(C) = 0.04 × $25,000 + 0.96 × $0 = $1,000
U(D) = 0.05 × $5000 + 0.95 × $0 = $250
However, the expected utilities of A and B cannot be compared.
These preferences might instead be clarified using theories like Rank-Dependent Expected Utility Theory.
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The frequency vibrations for a certain guitar string When is blood can be determined by the equation below, Where F is the number of vibration per second and T is measured in pounds.If the frequency of the vibrations is 600 vibrations per second, How many pounds of tantrums was used to plug the string? F = 200sqrt(T)
Answer:
9 poundsStep-by-step explanation:
Given the frequency vibrations for a certain guitar string modeled by the equation
F = 200√T where:
T is amount of tantrums in pounds
If the frequency of the vibrations is 600 vibrations per second, the amount of pounds in tantrums will be gotten by substituting F = 600 into the equation and calculating T as shown:
600 = 200√T
Divide both sides by 200
600/200 = 200√T /200
3 = √T
Square both sides
3² = (√T)²
9 = T
T = 9
Hence 9 pounds of tantrum was used to plug the string
The GCF of two whole numbers is the ________. A smallest whole number that divides evenly into both numbers B largest whole number that divides evenly into both numbers C smallest whole number that both numbers divide into evenly D largest whole number that both numbers divide into evenly
Answer:
Largest whole number that divides evenly into both numbers.
Step-by-step explanation:
GCF is greatest common factor. It is also known as LCM of lowest common multiple.
It is the set of whole numbers that divides evenly into all numbers with zero remainder.
For example, three numbers are 8,12 and 20.
The factors of 8 are: 1, 2, 4, 8
The factors of 12 are: 1, 2, 3, 4, 6, 12
The factors of 20 are: 1, 2, 4, 5, 10, 20
The GCF of these three numbers is 4. 4 divides evenly into all numbers.
Hence, the correct option is (B).
Answer:
A and E
Step-by-step explanation:
hope yall have a great day!
ayuden plis doy corona
The value of x after simplifying the expression be 55/6.
The given expression is
15 + 2x = 4(2x-4) - 24
Now we have to find out the value of x
In order to this,
We can write it,
⇒ 15 + 2x = 8x - 16 - 24
⇒ 15 + 2x = 8x - 40
Subtract 15 both sides, we get
⇒ 2x = 8x - 55
We can write the expression as,
⇒ 8x - 55 = 2x
Subtract 2x both sides we get,
⇒ 6x - 55 = 0
Add 55 both sides we get,
⇒ 6x = 55
Divide by 6 both sides we get,
⇒ x = 55/6
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there are 6 people in line to board a plane with 6 seats. the first person has lost his boarding pass, so he takes a random seat. everyone that follows takes their assigned seat if it's available, but otherwise takes a random unoccupied seat. what is the probability the last passenger ends up in his/her assigned seat, as a decimal?
The probability that the last passenger end up in his/her assigned seats is 0.20.
In the given question, there are 6 people in line to board a plane with 6 seats.
The first person has lost his boarding pass, so he takes a random seat.
Everyone that follows takes their assigned seat if it's available, but otherwise takes a random unoccupied seat.
We have to find the probability the last passenger ends up in his/her assigned seat.
Given 6 people with 6 Seats.
The probability that the last passenger end up in his/her assigned seats = 1/5
The probability that the last passenger end up in his/her assigned seats = 0.20.
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find the slope given the points (-5-3) and (2 4)
Answer:
1
Step-by-step explanation:
I graphed and got the answer.
Classify each number below as a rational number or an irrational number.
Answer:
1. not
2.yes
3.yes?
4.yes?
5.no
Step-by-step explanation:
i put question marks by ones im not posivie about
P(x)=x^3-3x^2-4x+12; x+2
Using factor theorem
Answer:
The groups have no common factor and can not be added up to form a multiplication.
Please provide the answer and an explanation.
Answer:
A = 37.1 square cm
Step-by-step explanation:
Composite Figures
The image shows a figure that can be seen as a composition of three regular shapes: two identical rectangles and a quarter of a circle.
The area of a rectangle of dimensions W and L is:
Ar = WL
And the area of a circle of radius r is:
\(Ac =\pi r^2\)
A quarter of a circle has an area of:
\(\displaystyle A_q =\frac{\pi r^2}{4}\)
The rectangles have dimensions of 5 cm by 3 cm, thus the area is:
Ar = 5 cm * 3 cm = 15 square cm
The quarter of a circle has a radius of r=3 cm, its area is:
\(\displaystyle A_q =\frac{\pi 3^2}{4}\)
Calculating:
\(\displaystyle A_q =7.07\text{ square cm}\)
The total area is twice the area of each rectangle plus the area of the quarter of a circle:
A = 2*15 + 7.07
A = 37.07 square cm
To the nearest tenth:
A = 37.1 square cm
I can find the perimeter and area of the rectangle
Answer:
A = 72, P = 38
Step-by-step explanation:
Area can be found by getting the area of the overall figure, and then subtracting the blank space in the corner
12 * 7 = 84
3 * 4 = 12(invisible rectangle in top right)
84 - 12 = 72
Perimeter can be found by adding all of the sides
12 + 7 + (12-4) + 3 + 4 + (7-4)
The numbers in brackets are the unlabeled sides on the top and left.
Answer:
\(P=38\\ A=72\)
Step-by-step explanation:
To find the perimeter (P), add up all of the side lengths of the figure:
(numbers in parenthesis are the unlabeled values in the figure).
\(12+7+(8)+3+4+(4)=38\)
To find the area of the figure (A), multiply the length and width of the original rectangle \((12*7=84)\). Then, subtract this amount (84) minus the area of the missing rectangle in the top left corner \((4*3=12)\).
Subtract the required values: \(84-12=72\).
Therefore, the perimeter of the figure is 38 units, and the area of the figure is 72 units.
help it is an assignment
Answer:
13. Given below is a graph showing the number of Hindi movies released in the first six months of 2005. Which of the following questions can be answered from this graph?
D. How many movies were released during the period 1st Match to 31st May 2005?14. The table below gives the dimensions of some rectangles.
D. rectangles that are equal in perimeter could have different areas.Step-by-step explanation:
heart and star pls <3 brainliest will be appreciated <3(っ◔◡◔)っ -{ elyna s }-Answer + Explanation:
13. A. can be answered - add all the monthly figures using the bar height.
B. cannot be answered - the graph shows May has the least movies but the graph doesn't tell you WHY it has the least movies, it does not give any reason.
C. can be answered - look at the highest bar height (it's February)
D. can be answered - calculate March, April and May figures together.
As such, circle A , C and D.
14.
A. Wrong - perimeter does not change in the table despite increase in area (all the perimeters in the table are the same).
B. Wrong - none have equal areas that have equal perimeters.
C. Wrong - none of the rectangles with equal perimeters have equal areas.
D. Correct - All the rectangles with the equal perimeter do not have equal areas (areas can be different).
So circle only D.
Write the answer with the correct number of significant digits. Don't use any commas in your answer. Only use a
decimal point in your answer if it is necessary to show the correct number of significant digits.
386 x 21 =
three potential employees took an aptitude test. each person took a different version of the test. the scores are reported below. reyna got a score of 87 ; this version has a mean of 73 and a standard deviation of 10 . demetria got a score of 301.8 ; this version has a mean of 288 and a standard deviation of 23 . pierce got a score of 8.56 ; this version has a mean of 7.3 and a standard deviation of 0.6 . if the company has only one position to fill and prefers to fill it with the applicant who performed best on the aptitude test, which of the applicants should be offered the job?
The applicant who should be offered the job based on the aptitude test scores is Reyna. Reyna scored 87 on her version of the test, which has a mean of 73 and a standard deviation of 10.
Demetria scored 301.8 on her version of the test, which has a mean of 288 and a standard deviation of 23. Pierce scored 8.56 on his version of the test, which has a mean of 7.3 and a standard deviation of 0.6. The scores of Reyna, Demetria, and Pierce can be compared by standardizing them and calculating the z-scores. Standardizing involves subtracting the mean from the score and dividing by the standard deviation, resulting in z-scores. This can be used to compare the performance of each applicant relative to their own version of the test. Reyna's z-score is 1.37, Demetria's z-score is 0.86, and Pierce's z-score is 14.27. This shows that Reyna performed better than Demetria, and significantly better than Pierce. Reyna should therefore be offered the job based on her performance on the aptitude test.
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find the prem of shaded shape
Answer: 50m
Step-by-step explanation:
The perimeter of the shape can be found by adding together all the lengths of the sides. See attached for my work.
\(\huge\textbf{Hey there!}\)
\(\large\textbf{The missing number inside of the irregular figure is: \boxed{\bf9}}\\\large\textbf{because we had to do, 14 - 4, which gives you \underline{10}, then}\\\large\textbf{subtract 10 from another \underline{1}, \& that gives you you 9.}\\\large\textbf{The other missing number at the bottom: \boxed{\bf 7} because it measures}\\\large\textbf{the SAME length as the top number\large\textbf{Lastly, the last missing}}\\\large\textbf{number is \boxed{\bf4}.}\)
\(\large\textbf{Now, let's solve for your perimeter of this irregular figure, }\\\large\textbf{shall we?}\)
\(\large\textbf{14m + 9m + 7m + 7m + 4m +4m + 4m + 1m}\)
\(\large\textbf{= 23m + 7m + 7m + 4m + 4m + 4m + 1m}\)
\(\large\textbf{= 30m + 7m + 4m + 4m + 4m + 1m}\)
\(\large\textbf{= 37m + 4m + 4m + 4m + 1m}\)
\(\large\textbf{= 41m + 4m + 4m + 1m}\)
\(\large\textbf{= 45m + 4m + 1m}\)
\(\large\textbf{= 49m + 1m}\)
\(\large\textbf{= 50m}\)
\(\huge\textbf{Therefore, your answer is: \boxed{\mathsf{\mathsf{50m}}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)you can rent time on computers at the local copy center for a $10 setup charge and an additional $2 for every 5 minutes. how much time can you rent for $25?
You can rent time on computers at the local copy center for 35 minutes with $25.
To find out how much time you can rent for $25 at the local copy center, follow these steps:
1. Subtract the $10 setup charge from the total amount you have: $25 - $10 = $15.
2. Now you have $15 left for renting time on the computers. Since it costs $2 for every 5 minutes, you need to find out how many 5-minute increments can be covered by $15.
3. Divide the remaining amount by the cost per 5-minute increment: $15 / $2 = 7.5. Since you can't have half an increment, round down to 7.
4. Multiply the number of 5-minute increments by the time per increment: 7 * 5 = 35 minutes.
So, you can rent time on computers at the local copy center for 35 minutes with $25.
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∫9cosxdx= 9sin(x) c. ∫(n 2)πnπ 9cosxdx= 9sin(n*pi 2pi)-9sin(npi) , where n is an arbitray integer.
9sin is the integral of 9cosx (x). 9sin(n*/2) - 9sin(n) is the integral of (n2)* to n* in the expression for 9cosx.
A fundamental trigonometric integration is the integral of 9cosx. The trigonometric substitution formula and the integral of cosx formula, sin, can both be used to calculate this integral (x). This indicates that 9sin is the integral of 9cosx (x).The integral of 9cosx from (n2)* to n* is a little more challenging. The trigonometric substitution formula and the integral of cosx formula can both be used to solve this integral. Sin is the integral of cosx (x). The integral of (n2)* to (n*) of 9cosx is therefore 9sin(n*/2) - 9sin(n). Accordingly, the integral of the function from n* to n* is equal to the difference between the integrals of the functions from 0 to n* and from 0 to n*.
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A drugstore manager needs to purchase adequate supplies of various brands of toothpaste to meet the ongoing demands of its customers. In particular, the company is interested in estimating the proportion of its customers who favor the country’s leading brand of toothpaste, Crest. The Data sheet of the file P08_15 .xlsx contains the toothpaste brand preferences of 200 randomly selected customers, obtained recently through a customer survey. Find a 95% confidence interval for the proportion of all of the company’s customers who prefer Crest toothpaste. How might the manager use this confidence interval for purchasing decisions?
The 95% confidence interval for the proportion of all the company's customers who prefer Crest toothpaste is approximately (0.475, 0.625).
To calculate the confidence interval, we use the sample proportion of customers who prefer Crest toothpaste from the survey data. With a sample size of 200, let's say that 100 customers prefer Crest, resulting in a sample proportion of 0.5. Using the formula for the confidence interval, we can calculate the margin of error as 1.96 times the standard error, where the standard error is the square root of (0.5 * (1-0.5))/200. This gives us a margin of error of approximately 0.05.
Adding and subtracting the margin of error from the sample proportion yields the lower and upper bounds of the confidence interval. Thus, the manager can be 95% confident that the proportion of all customers who prefer Crest toothpaste falls within the range of 0.475 to 0.625.
The manager can utilize this confidence interval for purchasing decisions by considering the lower and upper bounds as estimates of the true proportion of customers who favor Crest toothpaste. Based on this interval, the manager can decide on the quantity of Crest toothpaste to order, ensuring an adequate supply that meets the demands of the customers who prefer Crest. Additionally, this confidence interval can provide insight into the competitiveness of Crest toothpaste compared to other brands, helping the manager make strategic marketing decisions.
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2 2.1 Mathematical intro show that there is another form for spherical harmonics: 1 3 3 Y₁ x iy 1/√√2 (²-1) 2πT 2π 1 3 3 z YO 2 2π π r 1 3 x iy Y₁¹ 3 2π - - 12 √ √ 2² (²+²) 2 2π
Spherical harmonics are an integral part of quantum mechanics. They describe the shape of the orbitals, which electrons occupy in atoms. Moreover, the spherical harmonics provide the angular distribution of a wave in spherical coordinates. In 3D, the spherical harmonics can be written as:
Ylm(θ, φ) = √(2l + 1)/(4π) * √[(l - m)!/(l + m)!] * Plm(cosθ) * e^(imφ)
Here, l and m are known as the angular quantum numbers. They define the shape and orientation of the orbital. Plm(cosθ) represents the associated Legendre polynomial, and e^(imφ) is the exponential function. The spherical harmonics have various forms, including:
Y1,1 = -Y1,-1 = 1/2 √(3/2π) sinθe^(iφ)
Y1,0 = 1/2 √(3/π)cosθ
Y2,2 = 1/4 √(15/2π)sin²θe^(2iφ)
Y2,1 = -Y2,-1 = 1/2 √(15/2π)sinθcosφ
Y2,0 = 1/4 √(5/π)(3cos²θ-1)
Y0,0 = 1/√(4π)
The spherical harmonics have various applications in physics, including quantum mechanics, electrodynamics, and acoustics. They play a crucial role in understanding the symmetry of various systems. Hence, the spherical harmonics are an essential mathematical tool in modern physics. Thus, this is how one can show another form for spherical harmonics.
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use the _______ property to configure a linear gradient.
Use the CSS "background-image" property to configure a linear gradient.
The "background-image" property in CSS allows you to set an image or a gradient as the background of an element. When configuring a linear gradient, you can use the "linear-gradient()" function as the value for the "background-image" property. This function allows you to define the starting and ending points of the gradient, as well as the colors and stops along the gradient.
By specifying the desired colors, positions, and angles within the "linear-gradient()" function, you can create customized linear gradients to apply as backgrounds to elements on a web page, achieving visually appealing effects and smooth transitions.
Therefore, Use the CSS "background-image" property to configure a linear gradient.
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To configure a linear gradient in CSS, you can use the 'background-image' property with the 'linear-gradient()' function.
To configure a linear gradient in CSS, you can use the 'background-image' property along with the 'linear-gradient()' function. Here's an example:
In the above code, replace 'element' with the selector for the HTML element you want to apply the gradient to. 'direction' specifies the direction of the gradient, such as 'to right' or 'to bottom'. 'color1', 'color2', and so on represent the colors you want to use in the gradient. You can specify multiple colors to create a smooth transition between them.
For example, to create a horizontal gradient from red to blue, you can use the following code:
This will apply a linear gradient from red to blue horizontally on the selected element.
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PLEASE ANSWER THE FOLLOWING QUESTION GIVEN THE CHOICES!!!
Answer: 3/52
Step-by-step explanation:
You want to pick a diamond jack, diamond queen or diamond king
There are only 3 of those so
P(DJ or DQ or DK) = 3/52 There are 3 of those out of 52 total
How many different ways can six friends stand in line at the movies if Alice and David refuse to stand next to each other
Step-by-step explanation:
Let the other 4 friends arrange themselves first. There are 4! ways to do so.
Now there are 3 spaces between the 4 friends, and 1 at each end (total 5 spaces)
Example: _F_F_F_F_
Alice can choose to stand in any of the 5 spaces. David can choose to stand in any of the 4 remaining spaces (now Alice and David are not next to each other)
Total number of ways = 4! * 5 * 4 = 480.