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Mathematics Questions and Answers March 26, 2021

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Tell how many roots there are. List the p/q's. Find all roots (including rational, irrational and imaginary). List your answers as roots and factors. 5. x3 - 11x2 + 24x + 36 = 0 6. x4 + x3 - 8x2 + 4x - 48 = 0 # of roots: # of roots: P: q: P: q: p/q's: p/q's: roots: roots: factors: factors
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an archeology club has 52 members . How many different ways can the club select a president,vice president,treasurer, and secretary

Construct a 99% confidence interval about the sample mean concentration of calcium precipitation. MyLab and Mastering X Chrome - Do Homework - Tannaz Mojabi - X X > C A socscistatistics.col - mathxl.com/Student/PlayerHomework.aspx?homeworkld=567355606&questionld=5&flushed=false&cld=6046858¢erwin=yes NP G How I Gave Myself. Organic Fact Z = 25
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Suppose x has a distribution with a mean of90and a standard deviation of27. Random samples of size n =36 are drawn. (a) Describe the x distribution and compute the mean and standard deviation of the distribution. x has ---Select--- a binomial an unknown a normal an approximately normal a Poisson a geometric distribution withmean x = andstandard

Please answer! Mrs. Elliott, a teacher at Durham School of the Arts, studies the effect of "personal narratives" on people's behavior. For example, if the "story" you have about your academic ability is positive, you do better in school than if your "story" is negative. Something as simple as hearing older students describe overcoming challenges
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To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below. Treatment = A, B, C Observations A 20 30 25 33 B 22 26 20 28 C 40 30 28 22 The mean square due to error (MSE) equals Please provide step-by-step instructions.

Fill in the P = X x values in the table below to give a legitimate probability distribution for the discrete random variable X , whose possible values are 3,1,3,5 and 6. Value x of x P (X=x) -3. 0.24 1. ? 3. 0.10 5. 0.25 6. ?

The Winchester Alley Subway has charted and tracked the number of sandwiches that it has sold for the year.From this data, the mean number of sandwiches sold per day is 220 with a standard deviation of 9.If we use the Empirical rule, sandwich sales will be between what two values on 68% of the days in the coming year?

A. Calculate the margin of error for a 90 percent confidence interval for the mean difference between the ratings for withdrawals from an atm and a bank for all customers.B. Construct a 90 percent confidence interval for the mean difference between the withdrawal ratings from an atm and bank for all customers C. Interpret the interval in part BD.
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Geologists are interested in knowing if it is faster to drill holes in rock using \"we \" or \"dry\" drilling techniques. The newer drill operators are convinced their wet technique, in which water is used to flush the cuttings, is just as fast as the older, dry technique in which compressed air is used to ush the cuttings. To test the two
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8. Part 1 of 5 Are you smarter than your older brother? In a study of birth order and intelligence, IQ tests were given to 18- and 19-year-old men to estimate the size of the difference, if any, between the mean IQs of firstborn sons and secondborn sons. The following data for 10 firstborn sons and 10 secondborn sons are consistent with the means

An insurance company finds that of 600 randomly selected auto accidents, teenagers were driving the vehicle in 85 of them. (a) Find the 95% confidence interval for the proportion of auto accidents with teenaged drivers: (, (Use 4 decimals.) (b) What does this interval mean? We are 95% confident that the proportion of all accidents with teenaged

1. Open https://phet.colorado.edu/sims/html/circuit- construction-kit-dc-virtual-lab/latest/circuit- construction-kit-dc-virtual-lab_en.html from PhET. 2. It opens the following simulation. Show Current Electrons Wire B Conventional Labels O Values Battery Circuit Voltmeter Ammeters Light Built Wire Resistivity Resistor Area Battery Resistance
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The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 390 grams and a standard deviation of 9 grams. Find the weight that corresponds to each event. (Round your final answers to 2 decimal places.) a.Highest 10 percent b.Middle 50 percent ____ to _____ c.Highest 80 percent d.Lowest 10 percent

What is the significance of compactness and connectedness? Explain this concept by giving some real application . Is there any relationship between these two terminologies?

The ___ composable places its children in a vertical sequence. Row Box Column Modifier

Find all x in R4 that are mapped into the zero vector by the transformation xn>Ax for the given matrix A. 1 5 8 - 13 A = 0 1 - 3 4 2 8 10 - 18 (E Select the correct choice below and ll in the answer box(es) to complete your choice. '3' A- There is only one vector, which is x = X1 is The image of X22 - 1 5 [ ], and y2= [ ], and let T: R2>R2 be a
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Recall the Fibonacci numbers. as dened by: f1= 1 f2 =1 fa = fnl + fnz, for n L: 3. Recall the Sharp numbers from P86, as dened by: 31:2 32:4 311 = 3nl + 3.12, for Tl- E' 3+ Claim. For all n. 2 3, 3,, = 4'f'nl + 2 fn2- Fill in the blanks helonr with a proof by strong induction of the claim. This is a variation on the Tstep process from lecture and
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We counted the number of people who entered our store across the span of a week in the morning, afternoon, and evening. What is the simplest test to see if there is any difference in the frequency of people coming to our store at different times across days? Group of answer choices chi-square test of independence two-way factorial ANOVA

Random Processes 5. (20 points) Random Processes Let g (t) be the rectangular pulse shown below. The random process X(t) is defined as X(t) = Ag(t), where A is uniformly distributed between -1 and + 1. 0 g (t) = (1, if0 t = 1 10, otherwise (a) (10 pts) Find my(t). (b) (10 pts) Find the autocovariance function: Cx(t, t + d).In your own words,
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According to the United Nations, the world population reached 7billion on October31, 2011. On what date do you think the world population will reach 8 billion, and how did you come up with that date? The website I'm using for reference: https://www.census.gov/popclock/

The symbol for a data flow is atriangle. Question 57Select one: True False

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Which of the following statements are true of the stateful communication process? Each correct answer represents a complete solution. Choose all that apply. This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the option. A option A The sender and the receiver do

Competency map (matrix) BSBCMM401 Make a presentation 94 : Presentation Q1: Feedback and re Vinulaid - Ppt: dogs Q3: Princips communi Tack 1: Presentation that the trainer of the Presentations with 92: Regulatory require Pros plan - dogs Preen Plan - assessor repo Panache program leader assessed - evidence is the completed assessment checklists
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We wish to look at the relationship between y and x. Summary measures are given below n= 5 x bar =9.4 ybar=17.2 ssxx= 137.2 ssyy=242.8 ssxy= -169.4 Find the fraction of the total variation in y that is explained by the variation in x.

2)Suppose that your monthly salary is $5,400. You have devised a budget within which you can allocate 18% of your salary for rent. How much of you monthly salary can you dedicate to your rent.

Suppose a, b are two positive numbers. Find an equation for the line in space passing through a on the x-axis and b on the y-axis.

what is the probability /3 marks] 7. Alex selects a card from a standard deck of cards, what is the probability that he will select a diamond card or a numbered card? /4 marks] Note: a "diamond" card is the card with a diamond symbol. Note: a "numbered" card are the cards with numbers only. 8. Minsa has a bag filled with 13 Kit-Kats, 9 M&M's, and
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Help on 5 urgently Problem 5. (8 points) 3 =1 10 letA= {4 2| andb= | 5 {.The QR factorization of the matrix A is given by: 0 2 10 3 -4 3 1 g 4 \\f [5 1 } D 2 L 2v2 V2 (a) Applying the QR factorization to solving the least squares problem Ax = b gives the system: (use exact values 5 o] o 2= [T (b) Usecsubstitution to solve the system in part (a)
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Complete parts (a) and (b) below. a. Write the inverse of f(x)equals8xminus4. b. Do the values for f Superscript negative 1 in the provided table fit the equation for f Superscript negative 1 Baseline question mark x f left parenthesis x right parenthesis x f Superscript negative 1 Baseline left parenthesis x right parenthesis negative 1 negative

(12 points) Approximate the definite integral below for a - 4 by using a) Trapezoidal rule b) Simpson's rule ") Give a bound on the error of estimates for both methods in parts a and b.You may find these formulas useful! n(n + 1) k = 2 K= 1 k2 = n(n + 1) (2n + 1) 6 K=1 k 3 = 1 m(n+1)12 2 The Trapezoidal Rule: [f ( ajax = = [ ( x o ) + 2/ ( x1 ) +
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Use Pythagorean theorem to solve for the missing side of each triangle round to the nearest tenth \f
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Question 19 of 25 The function below describes the relationship between the height Hand the width w of a rectangle with area 75 sq. units. H (W ) = 75 W What is the domain of the function? OA. W> O O B. W 1 SUBMIT
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https://drive.google.com/file/d/1we2_n-bm2akoofvkiFOMWtbMNZ-ufJGL/view?usp=sharing PART A 1 The manufacturer of an Engine Energizer System (EES) claims that it improves gas mileage and reduces emissions in automobiles by using magnetic-free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are test
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Which of these verbs are irregular because the yo form ends in -go? Which of these verbs are irregular because the yo form ends in -go? hacer traer estar ir salir suponer poner ser

Calculate the maximum potential difference that can be maintained across a 35- mm layer of polyvinyldienedifluoride film. A parallel-plate capacitor made of circular plates of radius 15 cm separated by 0.30 cm is charged to a potential difference of 500 Volts by a battery. Then a sheet of polyvinyldienedifluoride film is pushed between the plates,

9:36 .1 5G O D Back Question 25 Not yet answered Points out of 4.00 Flag question Use a calculator or other technology to find each of the following. a. log 10 (9) (Simplify your answer. Type an integer or decimal rounded to six decimal places as needed.) b. log10 (0.9) (Simplify your answer. Type an integer or decimal rounded to six decimal
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. Find the degree sequence of the cycle graph C6. degree sequence = 2. Find the degree sequence of the wheel graph with 9 spokes. degree sequence = 3. Find the degree sequence of the complete graph K7 . degree sequence = 4. Find the degree sequence of the complete bipartite graph K2,4 . degree sequence =
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Need help with this question ! Automobile Workers A worker in the automobile industry works an average of 42.1 hours per week. If the distribution is approximately normal with a standard deviation of 1.3 hours, what is the probability that a randomly selected automobile worker works less than 40 hours per week? Use a TI-83 Plus/TI-84 Plus
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6 - Q4b Using the data below, Using simple linear regression to find the parameters for the line that minimizes the MSE for this time series. Don't round answers. y-intercept, b0 = _________________________ Slope, b1 = _______________________ MSE = _________________________ \f
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Use the tabular method to find the indefinite integral. (Remember the constant of integration.) 3x Ox X Check your answer by taking the derivative
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How do I answer this question? What formula do I use? In a drawer, there are 9 t-shirts, 4 of which are white. If you randomly select two t-shirts, what is the probability that both are white? Express your answer as a reduced fraction
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(20 points) The scalar quantity I3 is defined by [3 = det(C), where C is the RightCauchy Green strain tensor. ( a) If you were to measure /3 in a lobe of the lung during a breath as /3 = 1.44, what does this tell you about the change in the lung? (b) What approximate value of Is would you expect to measure in your biceps when you lift your

Prepare Margaret Geller's 2021 T1 tax return with minimum taxes payable. Ignore any GST/HST implications. Submission : Submit your assignment on eCentennial under "Assignments". Your submission should include: 1) The entire ProFile computer file (the file extension that ends .21T), and 2) A PDF printout of the "Summary" page
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Sinusoidal Functions \f\f\f
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The term funds from operations (FFO) refersto the figure used by real estate investment trusts (REITs) to define the cash flow from their operations. Real estate companies use FFO as a measurement of operating performance. FFO is calculated by adding depreciation, amortization, and losses on sales of assets to earnings and thensubtracting any

Please help with this question 3. [-/0.9 Points] DETAILS MY NOTES TAMUBUSMATH 1.1.005. 0/6 Submissions Used Allie and Bob have a box that contains crayons, markers, pencils and pens. They each grab some out of the box to use on a drawing project. Allie grabs 7 pens, 5 pencils, and 3 crayons. Bob grabs 15 markers, 2 crayons, and 19 pencils. Write a
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QUESTION 7 second attempt A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05

Problem 2 [25 points] An aircraft wing spar has the I-shaped cross-section shown in the figure below. The lift distribution over the wing produces a shear force of L = 1 kN at a certain point along the wing span. 100 mm - | | l 3 mm ~ L 1 L=1KkN A 2 T y | |=3mm l 3 mm - 1 a) Calculate the moment of inertia I, of the spar. [5 points] b) Calculate
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9. The height of a saw tooth in inches after time in seconds is represented by the function y = 0.6 cos(10x + 1.25) -0.4 for t > 0. Without graphing the function, determine the minimum height that the saw tooth reaches. a. -0.4 C. -0.8 b. -0.6 d. -1.0
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Construct an annotated bibliography of ten scholarly articles related to exceptional learners. Have at least one entry on each of the following: Learning Disabilities (Intellectual, Developmental, etc.) ADHD Emotional/Behavioral Disorders Autism Communication Disorders (Language, speech, etc.) Deafness/Hard of Hearing Blindness/Low-Vision Physical

2. Given f(x) = 3x2 + 12x + 96, state the following: a) Direction of opening. (D b) The y-intercept, in coordinate form. c) The zeros, or x-intercepts, in coordinate form. Show steps to receive process marks. d) The equation for the axis of symmetry. Show steps to receive process marks. e) The coordinate of the vertex. Show steps to receive
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Account Type Financial State 1. Accounts Part and Lemke Lom Payatie story Anut Opening Balance Couty 10. Undeposted Funds 11 Accounts Payable (AP) 12. VISA CHI Card 13. Prepaid Expenset: Insurance 15 fessional Services 17 g and Marksiing 18 anger Renters Insurance Expense 20. Checking 23. Cost of Goods Bold 34. Office Supplies and Sofware 35. mons
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Solve the matrix equation AX = B for X. 1 -2 -3 5 A = - 1 4 6 , B= 4 1 -1 -2 2 . . . X =
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MAT-151-0500 reply to Hello class, I was just working on the week two homework and learned way more than I thought I would rather quickly. It was confusing to me at first, but I think I am getting the hang of it. The four angles are called corresponding, alternate interior, alternate exterior, and consecutive interior angles. Corresponding angles

Normal Distribution Project Part 1 A set of data with at least 30 data points. The data should be quantitative, which means that it should be measured using numbers. the heights of a large number of people the number of pages in a set of books on a bookshelf the number of hits earned by different professional baseball players in a season Or if you

a sample of 26 citizens are measured. The average height of the sample is 62 inches and it's standard deviation is 15 inches. What is the 95% confidence interval for the average height of all citizens?

Question 4 [13 marks) Hereditary hemochromatosis [HH] is a recessively inherited genetic disorder resulting from mutations in the HFE gene. There are several possible mutations of different degrees of importance but the disease expresses itself only when at least 2 are present in any one individual. A blood analysis was performed on 3,000 blood
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2) Psychologists studied the relative efficacy of three different treaunent programs A, B, and C on illicit drug abuse. The following data represent the number of days of drug abstinence accumulated by 15 patients (5 in each treatment program) for the 3 months aer their treatment program ended Thus, a larger number of days indicates a longer
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-27 20 Let a] = h a2 = -3 and ag = The set { a1, a2, a3 } will span R unless h 27 5 (If there are no values of h that make the set fail to span, enter "NONE". If the set fails to span for all values of h enter "ALL".)
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Problem 5. [10 marks] Let A and B be 3 x 3 matrices. 1. Given det(A-1) = -, evaluate det A. 2. Given det (BT) = 2, evaluate det B. 3. Use the above results and evaluate det A2B-1 (A-1)3 (BT) = ]
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Find any relative extrema of the function. List each extremum along with the x-value at which it occurs. Identify intervals over which the function is increasing and over which it is decreasing. Then sketch a graph of the function. F(x)=-17+7x-^2 Identify any intervals over which the function is increasing or decreasing. Select the correct choice

The number of men and women among professors in Math, Physics, Chemistry, Linguistics, and English departments from a SRS of small colleges were counted, and the results are shown in the table below Dept. Math Physics Chemistry Linguistics English Men 96 128 58 34 44 Women 10 10 6 13 38 Test the claim that the gender of a professor is independent

A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 17.8 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 24 at the a = 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and
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Sometimes, the constraints in optimization problems look like sub(a,1)sub(x,1)+...+sub(a,n)sub(x,n)c, assuming n decision variables. To clarify, suppose that the sub(x,i)s represent dollars, and for some reason, they seem to work better with thousands of dollars. Let the sub(y,i)s be the new variables representing thousands of dollars. How should

A factory uses an average of 65 536 widgets per year. The ordering cost is $16 per order. The annual holding cost is $8 per widget. What is the economic order quantity, Qq? widgets What is the average cycle inventory when the economic order quantity is used? widgets How many orders will the factory place per year when the economic order quantity
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HW Score: 10%, 1 of 10 points Question 10, 3.2.VQ-2 Points: 0 of 1 Watch the video and then solve the problem given below. Click here to watch the video. Two cities have nearly the same north-south line of 116" W. The latitude of the first city is 30" N, and the latitude of the second city is 350 N. Approximate the distance between the cities if
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Determine whether the following statement is true or false. Explain why. Every point in the plane has exactly two polar coordinates.

Here is the question. A46.0m guy wire is attached to the top of a 33.6-m antenna and to a point on the ground. How far is the point on the ground from the base of the antenna, and what angle does the guy wire make with the ground? \f
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Mitch has two bags of nails. Bag 1 is 1 2 2 lbs and Bag 2 is 50 oz. Which Bag is heavier?

The sum of 6 times a number and 8 is 5. Use the variable x for the unknown number
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1, what's the test statistics for this hypothesis? 2, what's the P-value? 3, what's the conclusion? Thanks In a study of 779 randomly selected medical malpractice lawsuits, it was found that 518 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which
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Consider the function F(x,y) = xy37 + x4.6 y What is the value of the second-order partial derivative Fxx at the point where x=1 and y=1?
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4.6 Area Between Curves and Producers' and Consumers' Surplus 23. y = Vx and y = x2 on the interval [0,4] 24. y = 2- x2 and y = -x on the interval [-4, 1] For Exercises 25 - 28, find the area of the region bounded by the curves. 25. y = x2 and y = 3x +4 26. y = x3 and y = x2 27. y = x2 -9 and the x-axis 28. y= -x2 + 18x and y =x2 For Exercises 29
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following data represent the dividend yields(in percent) of a random sample of 28 publicly traded stocks. Compute thefive-number summary for the data. the five number summary is ....... \f
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Q:1 A university, is interested in estimating the average time per week devoted to study in the library by the students of this university. The university is running undergraduate, master's degree and doctoral programs. Number of students registered for the three programs is 250, 50, and 20 respectively. Since the value of the study variable is
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The sample space is defined as: S={A,B,C,E,F,L,M,O,P,R,S,T,U,W,Y,0,1,2,9} Given the events: A={R,E,M,O,T},B={F,A,L,2,0},C={P,S,T,A,1,0,9},D={U,C,S,B FindABCD, the intersection of the respective complements of eventsA,B,C, andD?

choose for O and 1 are so,s1,s2,s3,s4 and The finite state automaton given by the transition diagram above has the next-state table: Input 0 State -+ [ Select ] [ Select ] v [ Select ] [ Select SO [ Select ] v [ Select ] 53 [ Select ] v [ Select ] [ Select ] v [ Select ] v [ Select ] [ Select ] v [ Select ] v [ Select ]
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4+V-32 The complex solution to a quadratic equation is ~ = Write this solution in standard form, x = a + bi, 4 where a and b are real numbers. O 1 = 4tiv2 O x = 4+ 16iv/2 O 1 = 4+ 4iv/2 2 Or=1tiv2
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Assessment for Feedback and a Grade Part B Abby and Ben meet in a local park at the edge of a large circular pond. They walk in opposite directions around the edge of the pond. Abby walks at a speed of 4.5 feet/second clockwise for 15 seconds, while Ben walks at a speed of 1.6 m/s counterclockwise for 12 seconds. When they stop, they look at each
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Hello, could you please help me out with this question. Thank you! (1 point) Find the probability that a random subset of {1,2,3,4) does not contain the number 1 and the number 2
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2. Newton's Law of Cooling says that the temperature of a hot object decreases at a rate proportional to the difference between its temperature and that of 1ts surroundings When a person dies, the body, which 1s at 98.6 F, cools to a temperature of 95 F after 2 hours when the room temperature 1s 68" F. If a body was found in a 68" room at 4 pm and
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The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists. - 23 . . . Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. The one solution is x = y= , and z = . (Simplify your answers.) O B. There are
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Welcome to the final project. 1.Introduce your scenario and data set. Provide a brief overview of the scenario you are given above and the data set that you will be analyzing. Classify the variables in your data set. Which variables are quantitative/qualitative? Which variables are discrete/continuous? Describe the level of measurement for each

Can I get the answers with work? Need asap An advertiser who is planning a radio campaign is interested in the number of minutes of music played per hour by five local radio stations. A sample of 3 hours is taken from each station. Complete the following analysis, using the information given, and using a 0.05 level of significance. For full marks
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T, e : File Home Insert Draw Design Llayout References Mailings Review View Help | & comments | |\" editing ~ | | & share ~| e 10 1. This figure shows an irregular shape drawn in a grid that represents a 5 foot by 7 foot rectangle. The points were randomly placed by a Monte Carlo simulation program. Using the points, estimate the area of the
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Construct a 95% confidence interval estimate for the true mean price of a movie ticket if a sample of 12 theaters had a mean price of $9.50 and a standard deviation of $2.

JUST 3610 Tarea 3.1 Luego de haber estudiado los recursos requeridos en el tercer mdulo, contesta la siguiente prueba con un valor total de 80 puntos. La primera parte consiste en un cierto o falso con 20 ejercicios a dos (2) puntos cada uno, para un total de 40 puntos. La segunda parte consiste en contestar cuatro preguntas a 10 puntos cada una,

Let P, Q be square matrices of order n and let 11,1, 11,2, . . ., u," be columns vectors in R\". Which of the following statements are always true? (There may have multiple answers.) C] If P, Q are orthogonal, then PQ is also orthogonal. C] If P, Q are orthogonal, then P+ Q is also orthogonal. C] If {11.1, 11.2, . . . , u" } i5 orthonormal, then
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Find the equation of the tangent line to the curve at the point (5,1). (x^2)+xy+(2y^2)=32

1. Graph the linear equation y = 2x-3. Using any two points. 2. Graph the line whose slope is 2 and contains the point (-1, -5). Using the slope and one point. 3. Graph the linear equation y = 2x+4 . Using x and y-intercept

Consider the conduction of heat in a rod 40cm in length whose ends are maintained at 0C for all f > 0. Suppose that a2 = 3. Find an expression for the temperature u[z,t) if the initial temperature distribution in the rod is \"($0}_ I; $$
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Estimating limit values from tables Consider the function f (x) = x-3 x2 + 2x - 15 x 2.9 Complete the table to find the limit as x - 3. 2.99 2.999 f(x) 3 3.001 3.01 3.1 Based on your findings, what are the values of each of these limits? lim f (x) = lim, f (x) = lim f (x ) = By evaluating certain types of functions at a particular value, we may
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How many critical paths exist in this project? A. 1 B. 2 C. 3 D. 4 \f
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Use induction to prove the "extended De Morgan's law" For all n 1, A1 A2 An = A1 A2 An Here each Ai is some set, and there is some arbitrary universal set, U, that contains them all as subsets. Proof (by induction) Base Case Inductive Step

Bill Holliday is not sure what he should do. He can build a quadplex (i.e., a building with four apartments), build a duplex, gather additional information, or simply do nothing. If he gathers additional information, the results could be either favorable or unfavorable, but it would cost him $3,000 to gather the information. Bill believes that

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