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Mathematics Questions and Answers September 15, 2021

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Which of the following images represents the polar graph of r = 4cos 2? (5 points) a polar graph with 4 petals with a point at r comma theta equals 4 comma 0 a polar graph with 4 petals with a point at r comma theta equals 4 comma pi over 4 a polar graph with 8 petals with a point at r comma theta equals 4 comma pi over 4 a polar graph with 8

17. For x = 2, the slope of the function f( x ) = x 4 - 3 x 2 is 10 25 15 30 None of the above

Use the graph of f given below to answer the following questions. a. If f(3) positive or negative? b. What is the domain of f? c. What is the range of f? d. What is the y-intercept? e. Find f(0) and f(-10) f. How often does the line y = 1 intersect the graph? \f
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How can the effect of the following program segment best be described? if x > y: z = x elif x < y: z = y else: z = 0

Find x or y so that the statement is true. I, y) = (12, 32) A.x is 0 or 1; y is 0 or 1 C
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The national agency that oversees the social service sector is trying to understand factors that could drive the spirit of volunteerism in Singapore. Steven, the lead analyst from the agency downloaded from the data base the quarterly data for the past few years as shown in Table Q4-1. He subsequently performed a regression analysis and the result
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How would I solve this set of questions? Please provide step by step process and I'll rate you good :) C. 2 D. 3 E. Correct answer is not provided (b) (5 points) When finding the 20-th percentile (X0.2), what is the correct value of d? Enter your answer in Akindi line 17. A. 0.2 B. 0.4 C. 0.6 D. 0.8 E. Correct answer is not provided (c) (6 points)
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One way (way 1) to understand the addition is to consider p as a whole object (like an apple) and 0.5p as half of that object (like half apple) since 0.5 = 1/2. Therefore, p 0.5p is equivalent to one whole object (e.g., one apple) plus half of an object (e.g., 1/2 an apple). The result is 1 object half an object = one and a half of the object

You are considering investing in a risky project. It has an 80% chance of success. If it succeeds, your net profit will be $10 million. If it fails, you incur a net loss of $5 million. Alternatively, you could invest your money in a U.S. Treasury security that guarantees you an interest payoff of $100,000. a) What is the expected payoff of your

Q1 The population of Florida is 19.5 million and growing at 1.21 % per year.1 (a) What is the doubling time? Round your answer to three decimal places. The doubling time is n 57.631 years. (b) If the population continues to grow at the same rate, in how many years will the population reach 200 million? Round your answer to three decimal places.
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I need some help. Use shading to show the following set on the Venn diagram AUBING a Use the graphing tool to shade the region('s) Click to enlarge graph
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Given that: a* = (3 + 7)i-(2 + 3)j-5k , b* = 71+ (4 + 3)j-4R and c" = 3i+ 7j + (2+7)R. Find: b. Unit vector along ch*
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Problem-set-3(1) - Word Sign in X File Home Insert Design Layout References Mailings Review View Help Tell me what you want to do Share Using graph paper, make a well-constructed cumulative count graph of this data set. Ensure that all needed components are present. (This graph must be hand drawn. You may not submit a computer generated graph.
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Course Messages Forums Calendar Gradebook Home > Math 101.07 - Colon (Spring 2023) > Assessment Quiz #2 - Attempt 2 Score: 0/125 0/5 answered . Question 2 Solve the following linear system of equations: 5x - 9y = 50 6 + 3y = 60 c = y = Submit Question MacBook Air esc 30 F4 F6 F1 F2 F3 @ # 3 4 5 6 2 Q W E R tabCourse Messages Forums Calendar
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4. Percy needs to take a business trip to 8 cities. He goes to Boston, New York, Annapolis, Miami, Indianapolis, Cincinnati, St. Louis and Chicago. What is the probability that he visits St. Louis and Chicago consecutively (in any order)
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There was a sample of 250 milligrams of a radioactive substance to start a study . Since then ,the sample has decayed by 2.1 each year let t be the number of years since the start of the study. Let y be the mass of the sample in miligrams. Write an exponential function showing the relationship between y and T

elop a production schedule to produce the exact production requirements by varying the workforce size for this problem. Also, evaluate the cost of the schedule. Use the example in the chapter as a guide (Plan 1). The monthly forecasts for the product for January, February, and March are 1,000, 1,500, and 1,200, respectively. Safety stock policy
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(2 pts) The level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard deviation 0.2 grams per mile. Consider the sampling distribution of x for samples of size n. (a) Ifn=, the standard deviation of the sampling distribution ofx will be .01. The distribution of actual weights of 8-oz

Solve the following systems of differential equations using Laplace: \f
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Given the set of all uniformly-distributed, random points within a circle of radius 1. It was proved in lecture that the mean distance of these points to the center of the circle is equal to 2/3. In this problem, you are asked to compute the mean distance of these points to any fixed point on the boundary of the circle, using a similar method.

2 l] . . 4 O 1 Find an orthogonal baSIS for the column space of . l l l 6 1 I] DUDE DUDE DUDE
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Explain how you could use a regression model to estimate the wage gender gap using the data on earnings of men and women. What are the dependent and independent variables? What sort of statistical test(s) would you run to assess your results

PRACTICE ANOTHER Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient P(x)/D(x) in the form P( X) = Q(x)+ R ( X ) D ( X ) D(X) P(x) = 2x2 - 5x - 6, D(X) = x-2 P(X ) D(X) X Need Help? Read It
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Do the parts for each of the data sets a. Identify which test you will run based on your sample (two-sample mean or matched pairs) b. State your null and alternate hypothesis, address one or two-tailed test, and alpha used. c. Run the test. Identify the test statistic and p-value. d. State the formal conclusion in context based on your p-value. 19
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Report the chi-square test statistics, the degrees of freedoms, and the P-values for each test

A random number generator selected the numbers: 40, 76, 79, 50, 21, 13, 35, 87, 18, 91. All of the students at the following schools will make up the sample. (List in the order that the numbers were generated.) Simpsonville Elementary School, Welcome Elementary School, Gateway Elementary School, Pelham Road Elementary School, Mauldin High School,
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Part 1 Mesothelioma is a type of cancer caused by exposure to asbestos that has very poor prognosis. The average survival time after diagnosis is just 12 months. Suppose that an experimental treatment of a patient results in a survival time of 19 months, which is considered a potentially successful treatment. What is the probability of finding a

For each scenario below, find the matching basic growth or decay model, f(t). Refer to pages 230-232 in your text. - The concentration of pollutants in a lake is initially 100 ppm. The concentration A. f(t) = 100(1.5') decays by 40% every 3 years. The concentration of pollutants in a lake is initially 100 ppm. The concentration B. f(t) = 100(327)
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What is the probability of the item having a strength below 200 given: LCL is 219.4579, UCL is 308.6621 Average range R-bar is 77.3 Center line X-bar is 264.06 sample size 100 Please show work / formulas

6. Imagine that you put $1500 into an account that pays 5.6% per year, compounded continuously. (a) What function gives the amount in the account after t years? (b) What is the balance after 5 years? (c) What is the balance after 10 years? (d) How long does it take for the account to double in value? DEL
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Suppose that the trace of a 2x2 matrix A is tr(A) = -2, and the determinant is det(A) = -48. Find the eigenvalues of A smaller eigenvalue = _____ larger eigenvalue = _______

Consumer Reports provided extensive testing and ratings for more than 100 HDTVs. An overall score, based primarily on picture quality, was developed for each model. In general, a higher overall score indicates better performance. The following (hypothetical) data show the price and overall score for the ten 42-inch plasma televisions ( Consumer
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Please show steps to answer question 5a,b and 6. 5. Find the vertex of each parabola: [ 4marks] a. f(x) = x2 + 6x -17 b. f(x) = -2x-+ 4x- 11 6. Find the Inverse of the function: [ 4 marks] f (x) = 2(x+2)2 -1
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Which of the following is not an advantage of KNN a. It is simple to implement b. it can be more effective if training data is large c. It generalizes to clusters of different shapes and sizes, such as elliptical clusters d. It is robust to the noisy training data

Question 1: X= 36 y = +7 (30 marks) 9) Find x and y so that the following ordered data set has a mean of 42 and a median of 35. 17, 22, 26, 29, 34, x, 42, 67, 70, y Lb) Given the data set: 62, 65 , 68 , 70, 72, 74, 76, 78, 80, 82 , 96, 101, Find the median 20 and the interquartile range (IQR). The scores of a class in a Math exam are: 55, 35, 60,
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A rancher has 4800 4,800 feet of fencing available to enclose a rectangular area bordering a river. He wants to separate his cows and horses by dividing the enclosure into two equal areas. If no fencing is required along theriver, find the length of the center partition that will yield the maximum area.

I need help with this problem. 1. (10 points: 2 each part) Determine whether each of the following statements is True or False. (No justification necessary.) (c) If A is a 2 x 2 matrix, det A = 2, and B = A3, then det 2B = 8
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(1 point) Find a particular solution to the nonhomogeneous differential equation y??+16y=cos(4x)+sin(4x)???+16?=cos?(4?)+sin?(4?). yp=??= help (formulas) Find the most general solution to the associated homogeneous differential equation. Use c1?1 and c2?2 in your answer to denote arbitrary constants. Enter c1?1 as c1 and c2?2 as c2. yh=??= help
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Find the population mean or sample mean as indicated. Sample: 15, 16, 9, 4, 21 o Select the correct choice below and fill in the answer box to complete your choice. O A y=[i3 B. x= L
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Question one: LetA=[1 0 0 i 8 0 ] A=[1080i0]. LetB=[146095i 2 0 1 ] B=[146095i021]. SimplifyAA T +2B AAT+2Bas much as possible. Question two: LetA=[1 146095 3 1 ] A=[131460951]. FindA 1 A1using the method described in Part 2 of Week 6. Show your work and specify all entries as fractions , not decimals. (Note that using any other method will result
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Kindly do not paste your answer from other websites . Please provide your own working or don't answer it at all, else I'll straight up downvote your answer and be forced to report it for copyright infringement. Thank you. 4. Integrals: Just the nal answers. No need to show your work. When you are asked to set up the integrals, you are expected to
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What one preliminary negative conclusionmight acritic ofthe system highlight?Again, make sure thisconclusionis not simplyanobservation.Also,citethedata usedto support the conclusion.

ITS ASKING FOR A CI FOR PROPORTION OF NC CITIZENS WITH ASTHMA

This is one problem, can you help me with the WHOLE problem? Thank you in advance. A grocery store manager did a study to look at the relationship between the amount of time (in minutes) customers spend in the store and the amount of money (in dollars) they spend. The results of the survey are shown below. Time 23 24 22 30 7 28 24 5 Money 64 71 83
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Determine theP-value for this hypothesis test. Direction of Travel Departure Arrival Mean speed (feet perminute) 257 272 Standard deviation(feet perminute) 48 35 Sample size 35 35

I need help with CRJ 511 assignment. (1)Use the Recidivism.xls data, conduct an independent sample t-test (alpha= .05) in Excel to determine whether there is a significant difference in AGE between those who recidivated (RECIDIVISM=1) and those who did not recidivate (RECIDIVISM=0). For this t-test, assume that the variances of the two groups are

Consider the following data set for #9 and #10. + in 727 918 1048 1448 1707 2112 9) Use exponential regression to find an exponential function that best fits this data. 10) Use linear regression to find a linear function that best fits this data. Of these two functions (#9 and #10) which equation best fits the data. Justify your answer or show
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$3075200 $3063200 $3077200 $3083200 which number is a result

Find the average rate of change of the function over the given interval and also find the instantaneous rate of change at the leftmost value of the given interval. y = -x^2 + 2x + 2; [1, 3/2 ]

Nutrition labels. The nutrition label on a bag of potato chips says that a serving of potato chips has 130 calories. A random sample of 48 bags yielded a sample mean of 134 calories with a standard deviation of 17 calories. Test the claim that the nutrition label on a bag of potato chips is correct. (a) what is correct the hypotheses for the test:

I tried to do it with phi(path)+phi(refl)=piBut it does not work. Would you be able send me a explained solution thank you A broad beam of light of wavelength 542 nm is sent directly downward through the glass plate (n = 1.47) in Figure (a). That plate and a plastic plate (n = 1.26) form a thin wedge of air that acts as a thin film. An observer
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The matrix -3 0 1 A = 0 -2 0 -1 0 -1 has a single real eigenvalue x = -2 with algebraic multiplicity three (a)Find a basis for the associated eigenspace Basis = {___________} (b) is the matrix A defective? A. A is not defective because the eigenvalue has algebraic multiplicity three B. A is not defective because the eigenvectors are linearly

The coordinates of the midpoint of a segment are (3,5). If one endpoint is (8,7), find the coordinates of the other endpoint.

A retail company wants to determine if there is a significant difference in the sales distribution of their product across four different regions of the country (North, South, East, West). Region Observed Sales North 150 South 300 East 200 West 350

M New OTP for authentication - bra x VHL Central | Dashboard X 2.5 (part 2) X https://www.coursehero.com/das x + X C https://scf.instructure.com/courses/48972/assignments/1212047?return_to=https%3A%2F%2Fscf.instructure.com%2Fcalendar%23view_name%3Dmonth%26... A . . . MAC1105:21013 > Assignments > 2.5 (part 2) Spring 2023 2.5 (part 2) Home Due
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Los algoritmos de equilibrio de carga, tiene los siguientes beneficios: Admite la medicin de la calidad del enlace Seleccin de enlaces dinmicos basada en la calidad del enlace Garantiza una alta disponibilidad de aplicaciones crticas para el negocio Seleccione una: Verdadero Falso

find the domain of the function F(x)=1/6x+5. What is the only value of x not in the domain? Only value= Find the domain of the functionf(x)=15x+8. What is the only value ofxnot in the domain? Only value= Find all values of the variablex for which the rational expression is undefined. 4x+5 x 2 -3x-18 The expression is undefined whenx= Write

find a so that the vector v=i-aj and w=-7i-7j are orthogonal a=

arithmetic sequences pls help me with the last 3 questions :( Q2 - Looking for patterns Look at these patterns: pattern 1 pattern 2 pattern 3 pattern 4 How many blue beads would there be in pattern 5? How many black beads would there be in pattern 5? Write down an no term formula for: The number of blue beads: 2(n+1) The number of black beads: 3n
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23] Based upon the information from your car calculations, would Sally be able to afford the car you selected? Give details to justify your reasoning and discuss Sally's options. All verbal responses must be in complete sentences. Your response should be at least 6 sentences. 24] What does it mean ifyour Monthly Net Total is positive, negative or
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In a circle, chord AB intersects chord CD at point E such that AE=8cm, EB=14cm, and CE=5cm. What is ED? What is CD?

A consulting agency was asked by a large insurance company to investigate if business majors were better salespersons than those with other majors. Chapter 10, Supplementary Exercises, Problem 056a A consulting agency was asked by a large insurance company to investigate if business majors were better salespersons than those with other majors. A
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To say a post hoc test isnot very conservative is to say that_____. itdecreases the likelihood that we will reject the null hypothesis when we should have rejected to reject the null hypothesis it decreases the likelihood that we will reject the null hypothesis when we should have failed to rejectthenull hypothesis itincreases the likelihood of

An independent culinary critic built a webpage that publishes weekly reviews for many restaurants. Every time a client uses the critique webpage to access the webpage of any of the restaurants, he receives a 0.01 USD. What payment methods are best for the web page? Group of answer choices Cost per click. Click through rate. Mini Payments.

" Modelling the population growth of Myanmar and using the model to predict the future impact on the economy of the country
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In 2020, 16.9% flights arriving to LAX were 15 minutes or more late. The average "arriving late" time was 11.93 minutes per flight. Investigators want to see whether the delay times have changed since 2020. The available data set from 2021 shows 10 randomly selected airlines and their arrival information for each month. SHOW YOUR WORK FOR EACH

Please write clearly. From Dummit and Foote section 1.7: 16. Let G be any group and let A = G. Show that the maps defined by g a = gag- for all g, a E G do satisfy the axioms of a (left) group action (this action of G on itself is called conjugation)
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Need help solving this problem Express the situation as a system of two equations in two variables. Be sure to state clearly the meaning of your x- and y-variables. Solve the system by row-reducing the corresponding augmented matrix. State your final answer in terms of the original question. For the final days before the election, the campaign
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The Holy Spirit is ___________. Group of answer choices a form God takes a force which emanates from God the Third Person of the Trinity a lesser God

The polynomial -6.5x^2 +113x +2033 models the yearly number of visitors (in thousands) x years 2006 to park. Use this polynomial to estimate the number of visitors to the park in 2022

The solution should be your work. DO NOT USE someone else's work. Please show all steps in detail. Consider the differential equation m\"(t} = 10sin($(t}} t). It can be interpreted as the equation of motion for a pendulum with an attached spring. {a} Rewrite this second order ODE as a system of two rst order ODEs. {b} Find the differential
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Modifier F7 is the correct modifier to define the _____________. Question 6 options: Right hand, thumb Right hand, second digit Right hand, fifth digit Right hand, third digit

average weight of newborn babies is bell shaped with mean of 3325 grams and standard deviation of 571 grams. what precent of newborn babies weigh between 1612 grams and 5038 grams

(a) Draw digraph (b) Calculate the currents of the circuit shown above. (Hint: Use Kirchoff's Laws) B1 U = 12 V WW R1 R = 7 Ohms R2 B2 WW R = 5 Ohms R5 U = 6 V R = 3 Ohms R3 R4 R = 9 Ohms R = 11 Ohms
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I'm a circle chord AB intersects chord CD at point E such that mAC=10 and mAEC=30. What is mDB?

The probability of buying a movie ticket with a popcorn coupon is0.608 . If you buy10 movie tickets, what is the probability that more than3 of the tickets have popcorn coupons? (Round your answer to3 decimal places if necessary.)

At Grand Canyon University (GCU), there is a specific setup for the problem statement, and that problem statement must align with the problem space, which needs to be supported by calls for research or limitations from studies published within the last 2-3 years. What current calls for research, or limitations from other studies, have you found

0 Question 6 A mechanical question of variable mass. Hint: The following is a physical problem with a body of variable mass which can be solved by means of rst order linear equations. A water drop with an initial mass of [VI grams is falling in the air and it is evaporating with a constant rate of m grains per second. If the resistance of the air
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The sequence of vectors [1, 0, 0]. [2, 1, [i]. [6, 1, 1] is a basis of the vector space 1R3. Determine the coordinates of [5, 3, 1] with respect to this basis. Enter your answer as a vector of the form [1, 2, 3]
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A savings account earns 3.4% annual interest, compounded annually. What amount should be invested in the account now (principal), in order to have $6650 in 8 years

This question requires the use of a standard normal table. Let z be a standard normal random variable, find P(1.24 < z < 1.72). A .8498 B .0648 C .1502 D. 9352

A restaurant has annual overhead expenses of $525,000 and wants an annual profit of $20,000. Annual sales are $800,000. Using the overhead contribution method, what is the appropriate sales price for a dish with a cost per portion of $3.19?

I did this problem already but want to make sure my steps are correct, please show all work/explanations part 1) find the general solution for the differential equation 3dy/dx+6xy+x=0 part 2) xdy/dx-y-x^2e^x=0, x>0

Six stand-up comics, A, B, C, D, E, and F, are to perform on a single evening at a comedy club. The order of performance is determined by random selection. Find the probability that: a. Comic B will perform second. b. Comic D will perform last and Comic A will perform first. c. The comedians will perform in the following order: B, D, A, F, E, C.
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Ask Expert Tutors Let our expert tutors help you get unstuck 24/7. Answers in as fast as 15 minutes. Enter a question Text edit icon You have 13 questions remaining Ask a question Related Answered Questions 1 of 3 Question Answered step-by-step Asked by MajorMongooseMaster423 Describe two ways in which understanding correlations may enhance your

Mathematical modeling of pollution in the Tano river using either compartmental model, partial differential (Diffusion) equation or ordinary differential equation.

isabella has a full bag of mixed fruit and a bag that is 1/2 full. she wants to separate the fruit into bags that are each 1/4 the size of a full bag. fill in the tiles to show how many fourths are in 1 1/2. write the appropriate expression and solution

please help me solve these with solutions Name: Mathematics 30-2 Applications of Exponents & Logarithms Review 1. If 4log, x = log, 625, then the value of x is a. 5 b. 4 C. 3 d. 1 2. If 2 gz *+log25 = 16, then the value of x is a. -1 b. 1.25 c. 3.2 d. 11 3. If log(x-6)(x) = 2, then the largest value of x, correct to the nearest tenth, is ?
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Assume you are rolling two dice; the first one is red, and the second is green. Use a systematic listing to determine the number of ways you can roll a total less than 11 on the two dice.

How do you think rational expressions will be applied in your future career? Provide an example in your explanation.

Probability n stats 'wtwauun 7 u pumu I. :- I'll Bias is introduced primarily during the analysis state of a study. O a) True 0 b) False Question 10 (1 point) Statistical tests are sometimes useful for assessing the presence of effect modication. Question 11 (1 point) Bias can pull an estimate of association either toward the null or away from the
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Use the information below to construct a proper reporter citation. Using the reporter citation, look up each document in Google Scholar as we learned in class. In a separate Word Document, write the full and correct case citation for each problem. Be sure to follow the citation format in ALWD. Page 867 of volume 353 of the Federal Supplement Third

Statistics Lab 10: Interval-ratio association O (worth 20 points) Introduction to Lab In this lab, you will analyze the correlates of time spent watching TV. You will select four variables and assess their impact on tuhours (number of hours per day spent watching TV). STEP ONE: Choosing Independent Variables Select four variables from the 2018 GSS

A six-foot person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When the person is132feetfrom the tower and3 feetfrom the tip of the shadow, the person's shadow starts to appear beyond the tower's shadow. (a) Draw a right triangle that gives a visual representation of the problem. Label the

6H22. Curing diabetes: Vertical banded gastroplasty is a surgical procedure that reduces the volume of the stomach in order to produce weight loss. In a recent study, 82 patients with Type 2 diabetes underwent this procedure, and 59 of them experienced a recovery from diabetes. Does this study provide convincing evidence that those with diabetes

I dont get 7and 8 Name_ Jacob Loner Date Wksht. Area of Parallelograms/Trapezoids 1 . Find the perimeter and area of each parallelogram or triangle. Round to the nearest tenth if necessary. 2. 6 26 in. - 22 in49 A = th x X xthat ) = barn- 45 - 26 ( I1 52 ) 45 All. 3 A = 40 4. 5 #4-4 P = 19 - 252 P = 96 3. * cht ) = bup$2 2215 14 yd 30 cm 7 yd A =
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To help open up a restaurant, Tony borrowed money from his credit union. He took out a personal, amortized loan for $46,000, at an interest rate of 6.6%, with monthly payments for a term of 6 years. For each part, do not round any intermediate computations and round your final answers to the nearest cent. If necessary, refer to the list of
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En conjunto que un grupo de amigos estn planeando lanzar un nuevo modelo de pequeas tiendas de autoservicio teniendo como base los abarrotes familiares. Ahorita se encuentran en la etapa de la generacin y establecimiento de la idea de negocio. Qu etapa corresponde la elaboracin de proyecto de inversin? Seleccione una: Preinversin Ejecucin Operacin

please explain A principal of $1100 is invested at 5.75% interest, compounded annually. How many years will it take to accumulate $2000 or more in the amount? (Use the calculator provided if necessary.) Write the smallest possible whole number
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Suppose a group of researchers are interested in studying average mental health scores on a college campus (the quality of mental health, on average, of college students). Scores are given on a scale of 0 (the worst possible mental health) to 100 (the best possible mental health). Prior research (10 years ago) indicates an average score in the

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