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Mathematics Questions and Answers September 16, 2021

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With a given pole triangle, prove that the circle locus of D, D2, and D3 in Figure 2 are the same size when doing rigid body guidance of the moving point having three positions on straight lines. D P31 P12 Figure 2 D3 P23
With a given pole triangle, prove that the circle locus of D, D2, and D3 in Figure 2 are the same size when

Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distributed. What is the z-score of 1300 points

Beam ABC is fixed at A and supported by rod CD at C. The rod CD is pinned at both of its ends. The beam is subjected to a uniformly distributed load of 5 kNm between A and B. Beam ABC has a rectangular cross section of 300 mm by 100 mm, while rod BD is a cylinder with a diameter of 10 mm. Both members have a Youngs modulus of 200 GPa. Using the
Beam ABC is fixed at A and supported by rod CD at C. The rod CD is pinned at both of its ends. The beam is100 mm 5 kN/m 300 mm 3 m B 3m to 3 m 4m

Four sites are being considered for development to support Marsh birds. Marsh bird population is sensitive to four key factors (a) Cover () Percent of native vegetative cover at the site Utility (y) from 01.0 y(1)0.0001x2 0.02x (b) Pairs Number of breeding pair (030) at the site Utility (y) from 01.0 y x30. (c) Flooded () Percent of time the
Four sites are being considered for development to support Marsh birds. Marsh bird population is sensitive to

The structure shown in Fig. 2 is fixed at Node 1 and constrained with roller supports at Nodes 2 and 3. The structure is subjected to concentrated moments at Nodes 2 and 3. Assume El is constant. Develop the stiffness matrix of Element 1 (connecting Nodes 1 and 2) and Element 2 (connecting Nodes 2 and 3). Assemble the stiffness matrices and
The structure shown in Fig. 2 is fixed at Node 1 and constrained with roller supports at Nodes 2 and 3. The

What is the difference between a causal model and a time- series model? Give an example of when each would be used. What are some of the problems and drawbacks of the moving average forecasting model? How do you determine how many observations to average in a moving average model? How do you determine the weightings to use in a weighted moving

help please Use the Laplace transform to solve the following initial-value problem: y ty = 0, y(0) = -1, y'(0) = 1 (1) First, using Y for the Laplace transform of y(t) i.e., Y = [(y(t)), find the equation you get by taking the Laplace transform of the differential equation to obtain s* 2Y(s)-s(-1)+Y(s) 0 (2) Next solve for Y =
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Randomly selected high school students were asked to estimate how many text messages they typically send in a 5-minute period. The results are displayed in the following frequency table. Which histogram accurately summarizes the data

Solve the differential equation. 1. ) (x-y+2)dx-dy=0 Eliminate the arbitrary constant 1.) C1xcosx+C2xsinx

Glycolysis is a series of chemical reactions which converts glucose C6H12O6 into pyruvate CH3COCOO? + H+. A team of biologists were interested in the amount of energy (kcal/mol) that is released during this conversion process. After plotting their data, they approximated their data using a cubic equation. Kcal/mol 1 2 3 4 5 6 7 8 9 10 (4, ?4) ?10
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Determine whether this statement is true or false: Based on the responses, the researcher notes that several of the smokers also reported higher weights than the non-smokers. Weight may be a confounding variable in this study. Determine whether this statement is true or false: Based on the responses, the researcher notes that several of the

Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. A researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. A sample of 26 automobiles 4 years old showed a sample standard deviation for

QUESTION 1 Let X~U(0,20)and assume we take a sample of size 100 from this population distribution.What distribution would the sample mean follow? a. x bar ~U(0,2) b. x bar~U(10,0.333)approximately according to the central limit theorem. c. x bar~U(0,20) d.x bar~N(10,3.33)approximately according to the central limit theorem.

linear algebra Check if the vectors i - 2j + 3k, 2i + j - 5 k and 3i + 2j - k form a basis. (Could you explain the calculation, please)

A new company uses cylindrical gas tanks to deliver propane gas. As their orders increase, they switch to new gas tanks with triple the height and triple the radius of the original tanks. What will be the effect of the scaled dimensions on the volume of the tanks? A. The volume of the new tanks will be 9 times the volume of the original tanks. B.

We color each side of a regular 9-gon red or blue. We consider two paint jobs different if they cannot be moved into each other by a rotation or a reflection. How many different paint jobs are there

Dimanche dernier, ma famille et moi, nous (1) 1 of 10 (fter) les 81 ans de mon grand-pre. J' (2) 2 of 10 (porter) mon beau costume et mes nouvelles chaussures. Nous (3) 3 of 10 (faire) la fte chez ma tante Romane. Papi (4) 4 of 10 (adorer) tous ses cadeaux. Puis, on (5) 5 of 10 (manger) du gteau et les adultes (6) 6 of 10 (boire) du champagne.

I have 2 groups of data in excel as in this image: A 1 Group 1 Group 2 2 12 4 3 11 3 4 14 2 10 4 6 8 9 6 Write down the formula in Excel to calculate the p-value of a T-test for these two groups. (The T-test type is two-tailed and assumes equal variances.) Clue: you can google or ask chat gtp the formula of t-test in excel
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Gwen deposits $5,000 in a savings account that pays 2.5 percent interest, compounded quarterly. She wants to know what her balance will be in 10 years. What is N in this problem? Group of answer choices 10 40 48 120

Can someone help me with this question I'm really struggling with getting the right answer Q3) \f
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3. Show that the diameter D of the circumscribed circle of a triangle ABC with angles A, B, C and opposite sides a, b, c (see diagram) satisfies ,_ @ _ b _ /
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Which statement best exemplifies an assertion made from analogy? Multiple choice question. Since A and B share many similarities, they must be similar in other ways as well. The relationship between A and B leads logically to conclusion C. If A is allowed to occur, the negative consequences of X, Y, and Z will follow. If A occurs and B occurs,

An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. She selects three feed rates and four depths of cut. She then conducts a factorial experiment and obtains the following data. depths of cut. She then conducts a factorial experiment and obtains the following data. O Depth of Cut (in)
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Breast-feeding mothers secrete calcium into their milk. Some of the calcium may come from their bones, so mothers may lose bone mineral content. Researchers compared 47 breast-feeding women with 22 women of similar age who were neither pregnant nor lactating. They measured the percent change in the mineral content of the women's spines over three

I need some help. Find the future value of an ordinary annuity if payments are made in IR from contributions and how much is from interest R . 15,000 4 5% interest compounded quarterly for 13 years The future value of the ordinary annuity is S (Round to the nearest cent as needed ) The amount from contributions is $ and the amount from interest is
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Can anyone help me please? Trymaine rode his bicycle for a local bike-a-thon. The bike-a-thon started at 9:00 A.M. and ended at 4:00 P.M. By 10:00 A.M., Trymaine had ridden 12 miles. Except for a one-hour lunch break, Trymaine rode at the same pace until 4:00 P.M. How many miles did Trymaine ride in the bike-a-thon? miles Question Help: Message
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The accompanying data table list results from car crash tests. Included in results from car crash tests are loads (pounds) on the left femur and right femur, and those values are shown in the table below. What characteristics of the data suggests that the appropriate method of analysis is two-way of variance? That is, what is "two-way" about the

Question 1 1 pts For the cross sections of a member shown above the cross-sectional areas of all three members are the same. 0 True False Question 2 1 pts For the cross-sections above the Moment of Inertia for A is O 9 inches to the fourth O 27 inches to the fourth O 216 inches to the fourth 54 inches to the fourth O 18 inches to the fourth
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Exhibit Exam Scores. Professor Elderman has given the same multiple-choice final exam in his Principles of Microeconomics class for many years. After examining his records from the past 20 years, he finds that the scores have a mean of 76 and a standard deviation of 12. Answer the following questions rounding your final solution to 4 decimal
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Please help with the wrong answer 10. [0.56/1 Points] PREVIOUS ANSWERS TANAPCALC9 3.2.056. Demand Function for Sports Watches The demand function for the Sicard sports watch is given by d(x) = 40 0.01x2 + 1 (05x520) | PRACTICE ANOTHER where x (measured in units of a thousand) is the quantity demanded per week and d(x) is the unit price in dollars.
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Type a formula in A3 to compute B1 plus B2. Hint: The formula must start with A B C 1 40 5 10 2 5 5 6 3 10 8

The following chart displays the total votes cast regarding a ballot issue in a city. The dots are laid out in a matrix form, and the size of the matrix is relative to the size of the total number to be conveyed. This is an example of a _________. a. line chart b. scatter chart c. dot matrix chart d. choropleth

Apply the Gram-Schmidt orthonormalization process to transform the given basis for R" into an orthonormal basis. Use the vectors in the order in which they are given. 3 = {(0} 1}: {3: 9}} "1 = (0:1) q! "2 = [0.110, 0.994) Find the least squares regression line for the data points. (Let x be the independent variable and y be the dependent
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Please make a statement of the problem for the final paper on the fundamentals of statistics. Below is an example of what your post should look like. Remember the null hypothesis is the opposite of your dependent variable/affect in your research hypothesis (contrary to what your statement is). Men cheat for various reasons. Some men cheat on their

Create a data set called "gradebook" in SAS and print first 3 rows. (b) Create a new variable "Total" that is the weighted average of all grades (the homework counts for 30% of the total score, the midterm 25% and the final 45%). You can name your new data set "gradebook_new". (c) Compute the mean and standard deviation of the variables Homework,

Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four main preferences. Do married couples choose similar or different personality types in their mates? The following data give an indication. Similarities and Differences in a Random Sample of 375 Married Couples Number of

Earnings per share . The earnings per share(in dollars) for 12 companies selected at random from the list of Fortune 500 companiesare: 0.88 1.02 1.21 3.46 3.81 5.66 5.39 3.76 5.29 1.27 6.45 7.94 a. Find the mean of the earnings per share. $ nothing b. Find the standard deviation of the earnings per share.

a continuous random variable x has normal distribution with mean 12.25 the probability that x takes a value less than 13 is 0.82. use this information and the symmetry of the density function to find the probability that x takes a value greater than 11.50. sketch the density curve with relevant regions shaded to illustrate the computation

a simulation with an $80 per meal option for 100 wedding guests. The total sales revenue from the event equals $8,000 ($80 per meal 100 guests)

Hi, I would really appreciate if you could help me out with these two questions. QUESTION 1: A Quebec adult educator estimates that 15% of adults, aged 25 to 34 years, have yet to obtain their high school diplomas. The educator surveys a random sample of 200 Quebec adults, aged 25 to 34 years, and discovers that 38 have not obtained their high

Cul debe ser la informacin base para el desarrollo de un presupuesto? Entrega un ejemplo de presupuesto. 2. Cul es la relacin entre la reflexin de experiencia y el aprendizaje obtenido? Redacta tus conclusiones. 3. Desde tu visin como estudiante, y tomando en cuenta el perfil de egreso de la carrera, explica qu aportes y consideraciones podras

do the following questions 1)Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the given function value. n =3,4and4i ARE ZEROS, f(1)=102 2) Solve the logarithmic equation. Be sure to reject any value of x

Compared to the normal distribution, the t distribution has ___ values at the top and ___ at the tails. a. More; less b. More; more c. Less; less d. Less; more

please help with below discrete math problem 9. Draw the graph from the adjacenty matrix below. What kind of graph did you draw? O O 1 2 U 0 OOHAN OONA NHOO N 1
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1-year-old baby boy's weights have a mean of 23 pounds with a standard deviation of 3 pounds. Sam weighs 17.6 pounds at his 1-year checkup, what is the z-score for his weight? 2 points What percentile of weights he would be in? Do not enter a label. 1 point How would you explain the meaning of the percentile value to someone not familiar with the

4. Demand for certain product has been as follows; Month / Demand 1 / 41 2 / 46 3 / 57 4 / 52 5 /59 6 /51 7 /60 8 / 62 a. Find the regression equation b. Use the regression equation to determine the demand for months 9, 10 and 11.

Solve the system of equations dy - 4y + 4z dt dz = 4y + 4z dt with the initial conditions y(0) 2(0) (2) Please denote exponentiatron with exp(a*t) rather than e* *(a*t) or e^(a*t) y(t) = z ( t ) =
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In urban areas, scanning for potential hazards is about ______ of a mile in front of your vehicle. one eight one quarter one half three quarters

Display a illessage donllig LOL -all assume the customer name to be entered only consists of alphabet characters. 2. Display a message asking the user to enter the name of the product the customer chooses. In this part, you can assume the product to be entered is always a valid product. 3. Display a message asking the quantity of the product
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La rutina de la seora Vidal Completa el prrafo lgicamente con la forma correcta del imperfecto de los verbos de la lista. Word Bank reference Your options are: conversar, hacer, jugar, leer, pasear, Question 1 with 5 blanks La seora Vidal tena ochenta aos cuando la conoc. Todos los das 1 of 5 algo distinto por la ciudad. Los lunes iba de compras

4. With notation as in the previous question, show the following generalization of the Pythagorean theorem: c2 = a2+ 62 - 2ab cos C
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Q4. Suppose account numbers for an internet service provider consist of alpha-numeric characters. The first character is a digit (0 through 9). The next 4 characters are capital letters (A through Z) and the last four characters are digits. How many account numbers are possible if no digit appears more than once?

Give one (1)real-world example or scenario that could be described by each of the graphs below. Define your answer and state the x- and y-axis for each scenario. Describe what each could be graphing. \f
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The mean score on an exam is 501. A random sample of 100 people taking the exam, who learned English and another language had a mean exam score of 485 with a standard deviation of 116. Do these results suggest that students who learn English as well as another language score worse on exams? What the appropriate null and alternative hypotheses.

Explain the following/Give Examples: 1.Probability and Counting 2.Permutations and Combinations 3.Special Discrete Probability Distributions 4.Normal Distributions

In a right triangle with sides 5, 12, and 13, find the length of the altitude to the hypotenuse to the nearest 10th.

21. In which quadrant(s) is the graph of y = Vx + 7? A. II and Ill B. I and IV OC. I OD
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LC) Which method and additional information would prove ONP and MNL similar by the AA similarity postulate? Use rigid and nonrigid transformations to prove=. Use a rigid transformation to prove that NPO NLM. Use rigid and nonrigid transformations to prove=. Use a rigid transformation to prove that NLM LMN. Points earned on this question: 0

Direction: The table below shows data collected from the first year BS Nursing class of Aldersgate College. Accomplish the tasks that follow. a. Make a frequency distribution table of their Communication Arts and Algebra scores then, find the mean, mode and median. (class interval= 5) b. Make a frequency distribution table of their family incomes
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Hello. I need help with this problem. I'm not sure how to solve. Construct the cumulative frequency distribution for the given data. Dail Low Temperature (oF) Cumulative Daily Low (F) Frequency 91 y Frequency 35-39 3 Less than 40 2(5):: 2 Less than 45 50-54 11 Less than 50 55-59 9 60-64 6 Less than 55 _ 65-69 1 Less than 60 Construct the
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Suppose you're given a set of 10 elements and asked to determine how many subsets of size 3 you can make. Determine the number of permutations and the number of combinations possible. Provide your answer below: P(n,r) = C(n,r) =

Unit 5 Assessment - Calculating Confidence Intervals In this assignment, you will calculate confidence intervals for the quantitative variables in the Heart Rate Dataset. Steps Open the Heart Rate Dataset in Excel and identify the quantitative variables Make sure the data is sorted by category (e.g.male-at-rest,female at-rest,etc.) Use the Data

in 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008) in that year.Does this data provide enough evidence to show that Alaska had a lower proportion of identity

6. In this example, we will create a few random data sets and t linear models to them. Since we will be creating the data set we will be in \"god-mode\". We will know everything about the data. We will use this exercise to verify the fact what we have been doing makes sense. (In both Toluca and ACT damsets we do not know the true .80, ,81 and 02).
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The government of a small country has decided to pay for the construction of 60 new roads. Each of these will be direct links between one of ten big cities in the north, and one of ten big cities in the south. Each of the 20 eligible cities will get six roads. Let us say that the exact planning of the new roads is now finished, so we know which
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Twenty-five automobiles have been brought in for service. Fifteen of them need tuneups and ten of them need new brakes. Nine cars are chosen at random to be worked on. What is the probability that three of them need new brakes? Using R to figure out probability.

For Supervised Learning, you need to have access to a lot of data. Select one: True False

heine is administered to a patient. The amount, M. of the medicine, in milligrams, in 1 mL of the patient Bode hours after the injection is given by M(t) = -=12 + costs 3 Determine the average rate of change for the thirty minutes after injection. by Determine the average rate of change for the second thirty minutes after injection What is the
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3. Arlen is planning a dinner party at which he will be able to accommodate seven guests. From past experience, he knows that each person invited to the party will accept his invitation with probability 0.5. He also knows that each person who accepts will actually attend with probability 0.8. Suppose that Arlen invites twelve people. Assuming that
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Check my wow Save-the-Earth Co. reports the following income statement accounts for the year ended December 31. Sales discounts $ 860 Office salaries expense 3, 100 Rent expense-Office space 2 , 600 Advertising expense 720 Sales returns and allowances 360 Office supplies expense 720 Cost of goods sold 11, 200 Sales 42, 000 Insurance expense 2 ,
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Question: The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $6.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 52 customers, answer the following questions. a. What is the likelihood the sample mean is at least $25.50? (Round z value

question 11 Suppose that the lifetimes of tires of a certain brand are normally distributed with a mean of 75,000 miles and a standard deviation of (5 miles. These tires come with a 65,000mile warranty. The manufacturer of the tires can adjust a during the production process, but the adjustment ofo is quite costly. The manufacturer wants to set 0
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Suppose IQ scores are normally distributed with = 100 and = 15.What percent of IQ scores are between 85 and 130?

Please hurry Which of the accompanying Control Panel applets can be used to change the name of a PC or add the PC to a space? By perceiving careful as individual centredness, careful as ensuring the patient's prosperity, careful as nursing interventions and careful as intelligently intertwined, caring could open up the opportunity of influencing

linear algebra Write the vector 2i j + 3k as a linear combination of the vectors i + 2j ,2i - k and j - 2k. (Could you explain the calculation, please)

MUST SHOW CALCULATIONS: Solve the equation and check. n5 n+3 11 + = 6 7 21 .--. (||||||||lil)iiiiii .._, c. 4'2 0 .U. D. Find an equation of the line passing through the given points. Use function notation to write the equation. (-4,-6)and(-6,-7) (Simplify your answer. Use integers or fractions for any numbers in the expression.) Solve the system
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We want to use gradient descent to minimize the function a. Show that the function g is convex b. Using the language of your choice (MATLAB, R, Python, C++, Java etc.) what would a program look like that takes an initial value (x0, y0) and outputs the optimizing values of (x, y). 5. We want to use gradient descent to minimize the function g(x, y)
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What is the analysis of the payouts below (including charts at the bottom) and explain the shifts between scenarios? Baseline A B C D E F G H K Baseline Model We need to make some assumptions in planning period as to the distribution of equity shares and debt In other words, we need to model the capital stack Cost Weight in capital Source of
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Solving Problems Using Quadratic Equations A rectangular park measures 100m by 60m. A path of constant width is to be paved around the perimeter. The mayor wants to be sure that the oath does not reduce the area of grass by more than 10%. What is the maximum allowable width of the path? (Round to the nearest tenth of a meter). The product of two

If H = 17, A1(in)^2 = 100, A2(in)^2 = .1963, g(ft/sec^2) = 32.2, t = 5 sec find the theoretical heigh

Which of the following is the criterion for CB-SEM? a. Data should meet multivariate normality distribution assumption b. The measurement model should consist of reflective and formative indicators c. The analysis is used to identify the key construct(s) d. It should be used for a highly complex model with many variables and indicators

In the math formula P ( E ) = n ( S ) n ( E ) what does the P(E) , n(E), and n(S) stand for?

Angela receives $2,300 from an investment at the beginning of every quarter for 9 years and 6 months at 5.48% compounded semi-annually. a. What type of annuity is this? Ordinary simple annuity Ordinary general annuity Simple annuity due General annuity due b. How many payments are there in this annuity? Round up to the next payment

(4 points) Each picture below is the graph of a smooth function z = f (x, 3}). Sketch for each, in the Sty-plane, the gradient V f at several different points, enough to see the pattern. Scales need not be accurate, but relative size and direction should be apparent. (a) (b)
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To perform a test nilhe nuil and aiterrialive hypotheees shown below random samples were seiected [rum lhe lwu normally distributed populalinns with equal variances The dala are shown beiow Tesl lne null hypothesis using an alpha level equal to U 10, H :p 2 \"2:\" Sample lrorn Pnpulaun 1 Sampie lmm Populalion 2 Q1 H\
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match the most appropriate description of the type of F tests. Degrees of Freedom Within Degrees of Freedom Between The same subject for three Factors, with two levels each The degrees of freedom total The Sum of n1 + n2 + n3 + ni He said adjustments for analytical contrast is not necessary He the least conservative adjustment for analytical

The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used. B = 111, c = 8, b = 12 a) C = 38.5, A = 30.5, a 6.5 b) No triangle is formed. c) C = 30.5, A = 38.5, a

PROBLEMS P1. A system has four components, A, B, C, D. The probability that each component will work is HA) =30, P (B) = .T, P (C) =35, and P (D) = .60; all components must operate in order for the system to work. Since the probabilities associated with components B and D are low, backup components, 133 and EH), with the same probabilities are
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A population regression model is specied as L. = a + [3133 + zMa' Bi + ,63EPSi + A , where L: is the leverage ratio of rm i, Si is the log of total sales of firm i for measuring rm size, M/Bi is the market value of equity divided by book value of equity of firm i, and EPSi is the earnings per share of firm i for measuring firm profitability.
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How do you formally journal entry in Statistics for Behavioral Sciences Lab? I have to have a discussion section where I analyze the data, summarize the project and discuss your results in relation to the literature review and the hypotheses given.

Need help with 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. A corn and soybean commodities speculator invested $18,000
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The supply function for a product is 2p -9 - 10 =0, while the demand function for the same product is (p+ 10)(q +30) = 7,500. If a $22 tax is placed on production of the item, then the supplier passes this tax on by adding $22 to his selling price. Find the new equilibrium point E(q, p) for this product when the tax is passed on. (The new supply
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could you please give me some instruction about how to do question (5) and (6)? Thank you so much. No exact answer needed but a detailed explanation. . Write down the marginal distribution of X with its expectation E [X] and its variance V[X] (in a table). . Write down the marginal distribution of Y with its expectation E[Y] and its variance V[Y]
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Is this quadrilateral a rhombus or a rectangle? Rhombuisectangle conclusion: Quadrilateral DEFG is... a rectangle. It has 4 right angles but not all sides are equal. Is this quadrilateral a square? Square conclusion: Quadrilateral DEFG is...not a square because not all sides are equal
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please proof the question 7 Problem 7 (10pt) We denote by PY [4),Y (5),Y [6][X[4,Y[0],Y[1],y(2],Y(3] (7/4, V5, 16 34, 70, V/1, 12, 13) the joint pdf of random variables Y [4), Y[5] Y [6] conditioned on the event X[4) = $4, Y [0] = yo, Y[1] = y1, Y[2) = 92, Y[3] = 43 Similarly, we denote by PY [4], Y [5], Y [6]|X [3],*[4],Y[0], Y[1],Y[2],>[3] (74,
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Selecciona un verbo del grupo y conjuga el verbo para completar la frase. Select a verb from the bank below and conjugate it so that it completes the sentence. Word Bank: almorzar encontrar cerrar Yo Question Blank 1 of 1 type your answer... los ojos porque no quiero ver la araa

For about a _______ a supernova can emit at an energy rate equal to 10 Suns. day year month week

A well-known charity is interested in conducting a television campaign to solicit contributions. The campaign will be conducted in two metropolitan areas. Past experience indicates that, in each city, the total contributions are a function of the amount of money expended for TV advertisements. Specifically, the charity has estimated response
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What percentage of respondents were U.S. born versus immigrant? 3. What information did it provide about respondent identities by national origin? 4. In consideration with other factors (e.g., the total number of people surveyed = 434; the average age of respondent = 31; 73% of respondents = female), can you conclude whether this survey was a

\f47 2011 October -0.05107 -0.42262 -0.10889 48 2011 November -0.01801 0.66753 0.07365 49 2011 December 0.06688 1.13910 0.12972 50 2012 January 0.05480 0.12789 0.05217 51 2012 February 0.09394 0.48751 0.17156 52 2012 March 0.04434 0.44832 -0.05911 53 2012 April -0.07283 -0.12786 -0.22870 54 2012 May 0.04271 0.05660 0.07775 55 2012 June -0.00521 1
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