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Mathematics Questions and Answers September 16, 2021

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1.A can of soda at 78 F. It is placed in a refrigerator that maintains a constant temperature of 38F. The temperature T of the soda t minutes after it is placed in the refrigerator is given by \f\f\f
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Authorities conducted an investigation and found that the chemical Trioxin was illegally dumped into the local swamp. Exactly four days after the assumed time of thecrime, the amount of Trioxin in the swamp was estimated at about 45.7 barrels, and exactly seven days after thecrime, it was estimated at 20.7 barrels. Assume that no Trioxin was in

Ciara drove home from college traveling an average speed of 57.1 mph and drove back to the college the following week at an average speed of 58.9 mph. If the total round trip took 9 hours, how much time did it take Ciara to drive from home back to college? Express the time in hours and minutes. Round to the nearest minute

Complex Algebra and Analysis (1) Show that the function f(z) =z z, where z-r + jy, is not analytic anywhere in the complex plane. (2) It is given that dz -42-3 and f(2=1+3)--33. Find f(z) from the above information and the harmonic functions u(r, y) and v(x, y) such that f (z) =u(x, y) + JU(x, y). (3) Lit u(r, y)=ry-r+y. Show that u(r, y) is a
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Salaries for the research and development department are given as $48,397; $27 961; 542 565; 519,539; 532 420; and 537,582 Complete parts a through d below. [P a. Find the mean. The mean is 34744 . (Round to the nearest whole number as needed.) b. Find the median. The median is $ 35001 . c. Find the mode. Select the comect choice below and, if
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Why is the speaker in Donne's #10 from Holy Sonnets Unafraid of Death

A random sample of 1250 automobiles is selected and categorized by engine size (number of cylinders) and type of drivetrain. The data is given below. 4-Wheel Drive Front-Wheel Drive Rear-Wheel Drive Total 4-Cylinder 12 521 113 646 6-Cylinder 12 195 204 411 8-Cylinder 10 7 176 193 Total 34 723 493 1250 Match each probability to the correct value.

Suppose we have a random variable Y , that follows a normal distribution with mean 0 and standard deviation 1. Please consult the statistics review and the lecture notes for more information. For each of the following questions, find their probabilities using the z-table from this link:

A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval for the mean of the
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During which phase of the research process does a researcher decide how they will measure the variable they want to test? Group of answer choices Choosing a research method Forming a hypothesis Developing a theory Collecting and analyzing data

5. According to a USA Snapshot @ (10-26-94), the average annual salary for a worker in the United States is $26,362. If we assume that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,500, find the following: a. What percentage earn below $15,000? b. What percentage earn above $40,000
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Ted Thorndike is trying to close a sale with the Alvindale Chipmunks, a minor-league professional baseball team. Although his grandfather isn't very thrilled about any kind of deal with somebody with a name like "Chipmunks," Ted feels this could mark the beginning of some really high-level business with professional baseball teams, all the way up

Question 5: We want to estimate the average amount of money a household in a city spent for Christ- mas gifts last year. To do so, we divide the city into 5 areas such that the number of households in each area is the same. In each area, a simple random sampling of size 40 is taken and we get the following data: Area Uh Sh 65 16 2 58 17 52 21 4 54
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This GDt means 99% diversity is maintained after 1 generation with an Ne of 60. Use this example to help complete the assignment below Part 1 Answer the following questions. Submit your answers via Canvas. How does the N/N ratio affect the above equation

Suppose the durations of human pregnancies follow a mound-shaped distribution with a mean of 264 days and a standard deviation of 16 days.

A shoe manufacturer has developed a new technology that will make tennis shoes last much longer than the current technology enables. The technology involves a thin layer of a new chemical that is applied to the sole of the shoe after the production process is complete. To test this new technology, 55 tennis players were randomly selected. Each

Suppose twenty-seven communities have an average ofreported cases of larceny per year. Assume that s is known to be 41.7 cases per year. Find an 80%, 90%, and 95% confidence interval for the population mean annual number of reported larceny cases in such communities. Compare the lengths of the confidence intervals. As the confidence levels

1.Scores on a Math exam were normally distributed with a mean of 67% and a standard deviation of 8.Use this information to determine the following: a)About what percent of exams were below 75%? b)About what percent of the exam, scores were above 83%? c)A failing grade on the exam was anything 2 or more standard deviations below the mean.What was

You work for a data analytics firm and your consulting team has been tasked with describing data for the Applewood group car lot locations. make a well-organized Microsoft Excel workbook to perform your calculations alongside a well-organized Microsoft PowerPoint presentation that will answer the following questions. Be sure to save your
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The selling price of arefrigerator, is $953.75 If the markup is 25 % of thedealer's cost, what is thedealer's cost of therefrigerator?

I need help with my assignment The following data are from an experiment designed to investigate the perception of corporate ethical values among individuals who are in marketing. Three groups are considered: management, research and advertising (higher scores indicate higher ethical values) Marketing Managers Marketing Research Advertising 10 10
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prefer to see the attach. d0 ur best. sh0w solutions. asappppppp plss \f\f
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More math homework Use the following matrices for # 2 and # 3 if possible. If one is not possible write not possible. -3 -2 -2 -2 20 5 A= 1 1 - 2 B =0 -4 5 C = 4 1 -3 -2 2 3 -7 15 2) Find 2B - A
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Suppose that in the cohort study on smoking and lung cancer, the attributable proportion among the exposed had been 79%. Which of the following would be the best interpretation of this result? a. Non-smokers have 79% less lung cancer b. Smokers have 79% more lung cancer c. 79% of all lung cancers in the population are attributable to smoking d.79%

Graduate School Admission: UGA wishes to build a model to classify graduate school applicants into two groups: Those who are qualified and should be admitted and those who are not qualified and should not be admitted. The applicants in the sample data were reviewed using traditional means (i.e., application, statement of purpose, and essays

question 25 Next Page 1 point) following incomplete ANOVA table. Sum of Mean Squares Square F-Ratio Prob>F 27234.10 46631.15 formation, what is the F-statistic? Note: Only round yo nd your final answer to 2 decimal places. swer (1 point) are a public health analyst, examining potential changes
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W MYALVIS + X SIXOE CLEAR Think Smart _ Performance Task Juice Box Packaging Supreme Packaging Company manufactures juice boxes for juice companies. They are examining different ways to make the juice boxes using various lengths, widths, and heights. The measurements of one juice box are shown. Juice 4 in . isin. Write your answers on another
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Pls answer with work shown thank you! Solve the following polynomial equation by grouping and factoring. Ay3 - 9y = 0 Enter the exact answers. The field below accepts a list of numbers or formulas separated by semicolons (e.g. 2; 4; 6 or x +1; x - 1). The order of the list does not matter. y =
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What is the relationship between a parallelogram and a rhombus? A A rhombus is not a parallelogram. B All parallelograms are rhombuses. C All rhombuses are parallelograms. D A parallelogram is a special type of rhombus

Suppose X and Y have joint pdf given by f XY (x, y) := 8xy if 0 < x < y < 1. Find E(X|Y = y) and E(Y|X = x).

solve with explanation . 4. ABCDEF is a regular hexagon with center at O. Express each vector as the sum and difference of other vectors in the hexagon. Vectors can not start with O [2 each] a) b) C) B F D E2. Write the quadrant bearing angle of S as an equivalent true bearing angle. [1]
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If the actual average for a student who spent 67.4 hours in MYSTATLAB was 79.6, what is the residual for that time ?Interpret the meaning of this residual

Can you help solve this please show full work MAT 122 Test 2 - Page 5 of 12 Summer 2024 MAT 122 Test 2 - Page 4 of 12 Summer 2024 2. A store sells three soft drinks A, B and C. The manager of such a store claims that (d)(8 points) Complete the table below. (Round your answers to two decimal customers are equally likely to buy each soft drink. He
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Use the k-NN method for k=1,3,5, and 7 to classify each of the 15 points in the test set by using the training set. Make a table that shows the classification for each point in the test set and for each k. Highlight the errors in red. Compute the error rate for each k. Based on your answers in part b), what value of k should you use to classify
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(10 points) A herbicide label recommends an application at the volume of 15-30 GPA. The sprayer is set to operate at 30 pounds psi, with a goal of traveling 4 mph and using TeeJet 5880 nozzles. The spray width is 25 feet. Please answer: a. If 448 ounces of water were collected from this system in one minute, what is the flow rate in gallons per

Multiple Choice Question In a business presentation, the content of any slide should Multiple choice question. maximize the number of words per line. be easy to read and understand. present the text of the speech. fill all the white space

(3) The City of Minneapolis Construction Code contains the following requirements: ROOF SLOPE: The code requires a roof slope (rise divided by run) of 2:12 or greater for asphalt shingles. However, asphalt roofs sloped between 2:12 and 4:12 will require a double layer of felt paper that goes under the shingles to prevent leakage. The slope of a

18.Typically tables work best for simple or small data sets whereas graphs work well for large or complex data sets True OR false 19.One way to show significance on tables is to use asterixis.The more asterixes there are one a number in a table the stronger the statistical evidence is that there is a significant difference or effect being

For each of the following expressions defining a set of binary strings, describe in words the set of strings it denotes, and state with a brief explanation if the expression is ambiguous. (a) S1 = {00, 10, 01, 11} {0, 1}{0, 1}{0, 1}. (b) S2 = {00, 0000, 1} . (c) S3 = {0} ({1}{0} )({1}{0} ) (d) S4 = {111, 11111}({00}{1}{1} ) . (e) S5 = {1} ({0}

One example in the past month where I needed to perform basic arithmetic was when I was buying tickets for Disneyland. I wanted to know what the actual cost would be for myself and 3 friends including the sales tax. Each ticket is $98 just by itself and the California sales tax of 10%. I rounded the ticket cost off to $100 each. The total is $400

Am I doing this assignment right My work So far below N8 X V fx B D E F G H K A 1 ars (Simplifilation (Rounded) 2117 Population (Rounded) 1AWN LO 2383 20 2617 6000 30 3119 y = 44.026x + 1901.3 40 3506 5000 50 4025 4000 60 4646 70 5125 3000 Population ( Rounded) 10 Linear Trendline 11 2000 12 1000 13 14 15 0 20 40 60 80 16 17 18 19 20 21 Population
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The polynomial P(z) of degree 4 has e a root of multiplicity 2 at x = 4 e a root of multiplicity 1 at x = 0 and at x = -4 e It goes through the point (5,27) Find a formula for P(z). o[
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2) Assume that your widget manufacturing company has a total annual demand of N widgets per year evme distributed across the year. Each widget cost Sb dollars in material and manufacturing costs to make. Every time you do a production run to make some widgets, you incur a set-up cost of P dollars. Any widgets awaiting sale must be stored and thus
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Need help on this question. Don't know where to start. Thanks. An author is trying to choose between two publishing companies that are competing for the marketing rights to her new novel. Company A has offered the author $10,000 plus $2 per book sold. Company B has offered the author $2,000 plus $4 per book sold. The author believes that five

for the next function = 4 2 find: a) Domain b) Range c) Analytically, indicate if it is injective, surjective, bijective or none of them d) Intersections with the axes e) symmetries f) Asymptotes g) Graph the function

Identify an accurate statement about scaling. Multiple choice question. There is no one method of scaling, and there is no best type of scale. There is only one method of scaling. The stanine scale is the best type of scale that has been developed so far. The stanine scale is the only type of scale that has been developed so far

Check that answers are correct please 3. (4 points) Consider the set A = {a, b, c, d, e} and the endorelation R on the set A given below. Draw a directed graph to represent this endorelation. R = {(a, c), (c, a), (b, e), (c, d), (a, a), (d, e) ] OA 4. (3 points) Draw a complete binary tree with 26 nodes. 5. (4 points total - 2 points each) Suppose
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URGENT PLEASE HELP - please please include excel formulas please please thank you will rate quickly 5. Financial analysts often use the following model to characterize changes in stock prices: P, = Page(4-0507)toZVi where Po = current stock price P = price at time f u = mean (logarithmic) change of the stock price per unit time o = (logarithmic)
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You need to practice find GCF and LCM using the slider method, and then check your answers using the GCF CALCULATOR and the LCM CALCULATOR. Use the slide method to find GCF (45, 60, 70) and LCM (45, 60, 70). Show your work.

) Solve by using the substitution method. Write your answer as an ordered pair. x + 3y =8 y = 2x -9
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Please show legible work for me to understand how you got to your answer. 3.4 1) Given the following functions, find each of the values: f(ac) = a2 - 3x + 2 g(x) = x -1 (f + g) (0) = (f - g) ( - 5) = ( f . g) ( - 4) = ()(2) =f(ac) = x2 - 7x +6 g(x) = x - 1 ( f + g) (5) = ( f - g) (5) = ( f . g) (5) = ( ) (5) -Let f(x) = 2x + 4 and g(x) = 4x + 2x.
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According to the image below, what is the direction of the wind? Station model wind shaft pointing toward 45 degrees out of a 360 degree circle where zero is north. According to the image below, what is the direction of the wind? Station model wind shaft pointing toward 45 degrees out of a 360 degree circle where zero is north. From the SW From

Evaluate the algebraic expression \f
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My math homework 9) Write the vector v = (3,0, -6 ) as a linear combination of vectors in S where S = (1,2, -4), (1,-1,2), ( 2, 4, -2)
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I need help on all parts. A real life example can not be a cell phone bill. Has to be out of the box. 1:30 7 X Piecewise Function - Project 4.... ... Piecewise Function - Project #4 Your book gives you a number of different examples of piecewise defined functions that you may encounter in real life. (See the examples on page 187, and problems 85,
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Drake administers a tolerance for pain measure before training and then correlates the score on the measure with persistence in triathlon training. Which type of reliability or validity is best illustrated? Criterion-related validity Concurrent validity Construct Consequential validity Content validity Predictive validity Alternate-forms

1.Describe the pattern of plotted points in Figure 2 (Kriikku et al., 2014). What is the strength of the relationship shown in this figure? Provide a rationale for your answer. (10 points)

I really need help with this question please. Find the sum, if it exists. 45 + 15 +5+ ... Select the correct choice below and fill in any answer boxes in your choice. A. The sum is (Type an integer or a simplified fraction.) O B. The sum does not exist
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Identifica las oraciones en las que un participio funciona como adjetivo. Questions El participio tambin puede funcionar como adjetivo. Entonces debe concordar en gnero y nmero con el sustantivo. Ejemplo: El puente de Beauharnois es el segundo puente empujado ms largo del Planeta. El tren ha realizado su primer viaje de prueba. Los soportes en

A random sample of 16 subjects was asked to perform a given task. The following is the amount of time in 45, 39 , 37 ,36, 35, 29, 46 ,34 , 41 ,45, 33 33 ,33 ,44 ,25 ,32. If we are assume that the completion times are normally distributed, find a 90% confidence interval for the true mean completion time . Then calculate the lower and upper limit of

can you please help with the question listed below? In a poll, 1,001 adults in a certain country were asked whether they favor or oppose the use of "federal tax dollars to fund medical research using stem cells obtained from human embryos." Based on the poll results, it is estimated that 45% of adults are in favor, with a margin of error of 4
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Good Evening! It's great to see you discussing data sampling and its importance in statistics! You've provided a clear and concise overview of the concept, its benefits, and potential challenges. I especially appreciate how you highlighted the limitations of data sampling, such as the risk of sample bias and the need for a representative sample to

MS BG = MS E = F = Is the F-test statistically significant? A clinical psychologist is assessing the effectiveness of a new therapy in treating antisocial personality disorder. They create 4 conditions of therapy (no therapy, cognitive behavioral therapy, person centered therapy, new therapy). After 3 months of therapy, the researcher measures the
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IN A SURVEY WHERE541 PEOPLE ARE ASKED:" DO YOU LIKE ON-LINE CLASSES ?, 60% ANSWERED YES.FIND THE STANDARD DEVIATION OF THIS SCENARIO. ROUND ANSWER TO 2 DECIMAL PLACES

A company manufactures aluminum mailboxes in the shape of a box with a halfcylinder top. The company will make 1649 mailboxes this week. If each mailbox has dimensions as shown in the figure below, how many square meters of aluminum will be needed to make these mailboxes? In your calculations, use the value 3.14 for 1:, and round up your answer to
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Hi, can someone explain a) to me clealy and understandable to read. This exercise is about. elliptic curve ElGamal mpmsystems. Alice and Bob agrees to {me the public prime p = 3863 and the elliptic curve E = y2 = 23 + 324r+1287 (mod 3863). (3) Alice needs help mousing her public key (3:. P. Q. E) and private key 1'.- E [2.p 2], whem P is a point
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Otis Elevators conducted a study and determined the mean weight for American adults is 187 lb with a standard deviation of 36lb.The distribution is approximately normally distributed. (a)What is the probability of a randomly selected adult weighing more than 250 pounds? Answer= minutes (enter a number between 0 and 2, 4 decimal places) A random

The student senate at a local university is about to hold elections. A representative from the women's sports program and a representative from the men's sports program must both be elected. Two candidates, an incumbent and a challenger, are vying for each position and early polling results are presented next. A hypothesis test must be performed

On July 17 th , the billing date, Marcus had a balance due of $3054.29 on his Capital One credit card. The transactions during the following month were: July 22 Payment $100.00 July 29 Charge: Oil Change $49.32 August 7 Charge: I-Tunes $15.84 August 11 Charge: Grocery Store $38.92 August 14 Charge: Gas Fill-Up $62.31 And the Average Daily Balance

overview of the different types of graphs used to visualize data needed.. the outcomes from both Excel and SPSS should be copied/pasted where appropriate.. reference Excel and SPSS in explanations & a detailed overviewbenefit Each graph must contain a explanation of what it represents and an interpretation of the image. base off the provided

Threesystems of linear equationsare shown. For each system, choose the best description of its solution. If the system has exactly one solution, give its solution. V System A System B System C Line 1: y= 7x+ 3 Line 1: y=4 3 Line 1: y= _x+1 Line 2: y=x + 3 Line 2: y= 0 Line 2: -3x + 2y=2 Ty LI 4 LI 4- LI 2 - 2 - 2- L2 -4 - 2 N . -4 -2 2 -4 1-2 4 L2
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Student Name: \" Date: Module 11 PAPER Summative A square pyramid has a base with sides of length x inches and a height of 6 inches. Which expression represents the volume of the pyramid in cubic inches? 0 2x2 0 6x2 0 12x _1_ 3 0 3x 8) Fill in the blanks using the available answer choices. A regular hekagon is inscribed in a circle with a diameter
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In 2017, the library was able to record 4907 borrowed books. By December of the same year, the library has 6 times its January record. The library's December record is _?_ borrowed books

For a compound proposition with three simple propositions that are stated as p q r, the number of false statements when evaluating the compound statement is 4

Find the surface area of a cylinder with a height of 8 in and a base diameter of 12 in. Use the value 3.14 for 71:, and do not do any rounding. Be sure to include the correct unit. 8 in _ lIl 12m
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Following the lead of the National Wildlife Federation, the Department of the Interior of a South American country began to record an index of environmental quality that measured progress and decline in the environmental quality of its forests. The index for years 2004 through 2014 is given by the function E(t) = t 3 - (5/2)t 2 + 80 for 0 < t <

n 1 2 3 4 n 1 2 3 4 1. f(n) 2 3 1 4 g (n) 1 3 4 2 Given the functions f and g defined by these tables, what is f(g(3)) ? n 1 2 3 4 2. f(n) 2 3 1 4 What is f-1(3)? n 1 2 3 4 n 1 2 3 4 3. f(n) 2 3 1 4 g(n) 1 3 4 2 What is g(f (3))? n 1 2 3 4 4. f(n) 2 3 1 4 True or False: The function fofof of is the identity function. 5. What is Ek-1(242 + 1)? 6.
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The no-cloning theorem is only one of a large class of impossibility results in quantum mechanics. Another is the nonexistence of a universal NOT gate. A universal NOT gate would be a unitary matrix N such that for every state |, N | = , where is a state orthogonal to |: | = 0. Prove that no such unitary N exists

Can you please help me for questions 6-10 (written below)? I thought they would initially be in the doc I unlocked, so now I'm confused and don't understand what is being asked. Thank you. . . . 6. A normally distributed variable has a = 10 and ^2 = 11.26. What are the values of: a. the median b. the mode c. the 50th percentile 7. A z-score tells

A $9,000 bond pays interest at 1.9% compounded semi-annually and is redeemable in8 years.The bond is purchased at 96.5.Calculate the yield rate.

I understand that I cannot use prior teaching hours; all hours must be completed during the term of enrollment. Group of answer choices True False

Further Exercises Q4). A sampling distribution is shown for the proportion of US citizens over 15 years old who have never been married, using the data from the 2010 US Census and random samples of size n = 500. 0.26 0.28 0.30 0.32 0.34 0.36 0.38 a) What does one dot in the dot plot represent? b) Use the sampling distribution to estimate the
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Divide 0 17. Check by multiplying. 1 17 0 Undefined

Membership in a snotty rich person's club requires a yearly salary in the 86th percentile or higher.If the mean is $115,000 and the standard deviation is $10,000, the lowest acceptable salary for membership is _____________ . Assume the data is normally distributed. Round to the nearest whole number.

On the Coast is a very popular restaurant located along the coast of Lake Erie. It serves a variety of steak and seafood dinners. During the summer beach season, it does not take reservations or accept "call ahead" seating. Management of the restaurant is concerned about the time a patron has to wait before being seated for dinner. Listed below is

This assignment assesses your skills/knowledge on identifying functions, the domain and range, using functions to calculate the rate of change and extrema, and interpret the graphs of functions. In order to model real-world scenarios and transformations with limits, it's important for us to understand functions, domains, and ranges. Additionally,
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please show an annotated biography on Aristotle as well as his contribution to math

This question is from my calculus class. Please calculate it with the chain rule. Thank you very much for your help. [1 point} In the mysterious lest city of Him. the length of daylight {In hall's} en the nth daydf the year Is modeled by the function L{t}=12+sin(%(IE}) Use this model to compare haw the number of hours at daylight ls Indreaslng on
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On Brian's first birthday, his parents deposited $10,000 into a savings account that earns a fixed rate of 9.00% and compounds interest annually. By Brian's 19th birthday, his account will have accumulated (Hint: Round your answer to the nearest cent.)

I'm having trouble solving this problem. Can you please help me? Thank you in advance. According to a recent publication, the mean price of new mobile homes is $62,900. Assume a standard deviation of $7500. Let x denote the mean price of a sample of new mobile homes. a. For samples of size 50, find the mean and standard deviation of x. Interpret
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LL I Circle E has a radius of 4.7 meters. FG is a chord and HE is a perpendicular bisector of FIG . If FG = 7.1 meters, calculate the distance of IH
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Please explain how you solved 1-4 \f
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Background information on this question: Observation: Hiking trails with more human foot traffic have less woody vegetation (e.g, trees) than hiking trails with less human traffic. Null hypothesis - According to this, we assume that there is no difference in woody vegetation between the hiking trail with more human foot traffic and hiking trail
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What is the correct answer for this question? 1. Write the standard form of the equation and the general form of the equation of the circle with radius r and center (h,k). Then graph the circle. 16- r = 10; (h,k) = ( -8, -6) 12- The standard form of the equation of this circle is 8-1 The general form of the equation of this circle is 4- (Simplify
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Pauline administers motivation to learn inventory on Monday and again one week later to indicate the correlation between the scores. What type of reliability or validity is best illustrated?

Write the equation of a sine or cosine function to describe the graph
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Powerball is a lottery in which most U.S. states participate. To play, you pay $2 and choose five white numbers between 1 and 69. Then you choose a single red ball, the Powerball, from a second set of numbers that range from 1 to 26. To win the Powerball jackpot, you must match all five white numbers, plus the Powerball number. Like other lottery

The conclusion that the alternative hypothesis, as a research hypothesis, is true can be made if the sample data provide sufficient evidence to show that the null hypothesis can be rejected. accepted. true. false

know, it sounds weird. But I have provided you with an example to get you started. You don't need anything via email from me to answer these questions, so you can start on these when you feel up to it. Let's get started! QUESTIONS 1-10 Use this worksheet to record your answers and working out. When you are comfortable that you've got the right
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Find the perimeter and area of the following composite figure: 301'? 13 ft 13ft 8ft 30' 8' (Q Perimeter = C] feet (If needed, enter answer to 1 decimal place.) Area = C] square feet (If needed, enter answer to 1 decimal place.)
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