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Mathematics Questions and Answers September 24, 2021

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If X is a sample observation corresponding to population with mean and variance 2 and X ba r is the average of sample observations.If you want to pick X or X bar as the estimate of population mean, which one you will pick and why?Explain your answer.

What is CDF and PMF? What does it mean for them to be Discrete? Are there formulas that allow me to find the probability based on CDF and PMF?

Suppose that a survey of 500 parents was conducted. The survey asked questions about whether or not the person had a child in college and about the cost of attending college. Results are shown in the table below. Suppose one person is chosen at random.The probability that the person does not have a child in college given that he thinks college

In order for transferability to occur, the cost of moving a commodity from one place to another must be _______ _______ the value of the commodity. Question 13 options: equal to less than greater than Zero to None of the above

Is it possible if you can help me on question number 18? con 11. 30 13-16 IIII Use Newton's method to approximate the indicated rom of the equation correct to six decimal places. 13. The root of 2x3 - 6x2 + 3x + 1 = 0 in the interval [2, 3] 14. The root of x4 + x - 4 = 0 in the interval [1, 2] 15. The positive root of sin x = x2 16. The positive
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Build two beta prior distributions using the betaABfromModeKappa() function from the author.See Section 6.2 of the book. (a) Suppose the sensitivity $P(+|D)$ of the rapid COVID-19 test is now being reported at 0.97.See the Further Reading.So there is some variability in this value according to experts.What values of $a$ and $b$ results from an

I need help with the following questions. Please explain in detail, explain step by step for the part. Please, help me understand it. \f
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You have an opportunity to purchase a bond that will pay out $778 in 8 months.If you would like to earn at least a 3.7% annual rate of simple interest on your investment, what is the largest amount the you should pay for the bond?

The confidence interval estimates for the mean waiting time (in seconds), in a hospital facility is given below: 125 175 a) What is point estimate of waiting time? b) What is the margin of error? c) What is precision of confidence interval?

A long term study of meadow voles on the UCSC campus has shown population density to fluctuate extensively through time. At the lowest population densities, female per capita birth rate (b) is 0.6 and per capita death rate (d) is 0.3. An analysis of birth and death rates at different population sizes (N) has further established that birth rate

f() = 3 2 + 4 2. Find (3).

Consider the following hypotheses and sampledata, and then complete parts a and b below using = 0.05 H0:1616 H1:16>16 20 17 12 17 22 21 16 23 16 17 a) What conclusion should bedrawn? Determine the criticalvalue(s). The criticalvalue(s) is(are)

Find the following indefinite integral: integral left parenthesis 20 x to the power of 4 plus 12 x cubed minus 6 x squared plus 7 right parenthesis d x a.) 4 x to the power of 5 plus 3 x to the power of 4 minus 2 x cubed plus 7 x b.) 4 x to the power of 5 plus 3 x to the power of 4 minus 2 x cubed plus 7 x plus c c.) 5 x to the power of 5 plus 4 x

hello I need help with this question please Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 997 and x = 595 who said "yes." Use a 95% confidence level. Click the icon to view a table of z scores. a) Find
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A water pump increases the water pressure from 15 psia to 80 psia. Determine the flow work, in Btu/lbm, required by the pump

1,000.000 *X = 12 250,000 2) Express 33 1/3% as a ratio in lowest terms. Response Feedback:331/3=33.33%=0.3333 (convert percent to decimal) 0.3333= 3333/10000= 3,333:10,000 (express as a ratio)

i need help with this Suppose f(x) is a function such that f(1) = 3 The domain of fis [-3,3]. The graph of f' is df 0.5 On your own graph paper make a possible sketch of the function f(x) . It is not possible for WebAssign to check your graph, so get feedback. Then answer the following question about your graph. Note: Only 6 submissions allowed,
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Discuss how multiple representations (graphs, charts, tables, equations, numbers) of data might provide an enhanced understanding?

y" + 2y' - 3y = 12u(t - 1), y(0) = 0, y'(0) = 0 on (0, 00)
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Find the Euclidean distance between the points and the city distance between the points. Assume that both d E ( P , Q ) and d C ( P , Q ) are measured in blocks. P (5,4), Q (6,4)

How do I solve this The Table below shows number of pull-ups for UCLA and CSUSB 15 points students. Report the test results in a statistical format. Subject 1 2 3 4 5 6 7 8 9 10 11 12 UCLA 3 2 7 8 5 2 9 6 4 1 9 CSUSB 4 1 9 6 4 12 9 8 4 15 1
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Due to liability issues it is imperative that drug makers have rigorous quality-control standards. Production control at Betapharm requires that its Malic acid input have a pH level between 2.9 and 3.1, and the size of each particle of Malic acid be between 7 and 10 microns. Any substance with attributes falling beyond either the pH or size

6. A 43-year-old patient is hospitalized to unity-acquired pneu nonia. They are receiving IV antibiotics and fluids. An order is received in the pharmacy for 1 L normal saline infused over 8 hours. If the IV set delivers 15 gtt/mL, how many git (drops) per minute will the patient receive? The patient will receive gtt (drops) per minute. Round UP
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Please answer the question. Problem illustrating a really deep recursion. Here is one of the recursions which lead to the sequence of Catalan numbers: emf, CkCH, c0: 1 k=0 a. Compute C4: C4 = b. Check your result using oeis.org. What is the code name for this sequence: A ? c. Check your result using wolframalphacom. Which command have you used
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need help thank you A. Use the distance formula to show that the given points are on te same line. 1. O(1,5) , P ( 2,7) , Q ( 4,11) 2. R (4,0) , S ( 9,3) , T (-2,10) B. Problem Solving: 1. Give a point on the line x = 3 that is 7 units away from ( 6,-1). 2. Give a point on the line y = -2 that is 6 units away from ( -3,1). 3. Are there points on
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can you help with this calculus question. Homework 07: Problem 10 Previous Problem Problem List Next Problem (1 point) Recall the definition of a definite integral: f(x)da = lim f(z.) Ar n-+00 1 1 where ; are right endpoints. (a) Determine Ax and ; in the definition for (5 + 3x) da. Ar = (b) Using the definition, evaluate the integral. " (5 + 32)
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HI Course: | X [ Linn: Ass X & College X M MyOpen X *Course l X | gmail lo X , aetiologyX HM Course: X b gmail lo x M Inbox (1 X + X C https://www.myopenmath.com/assess2/?cid=118064&aid=9032525#/skip/2 myOpenMath Home | My Classes . | User Settings | Log Out teanna barnes Course | Messages Forums | Calendar | Gradebook Home > MAT 142 College
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Page 6 of 7 ZOOM 19. (4a-b-1)1 20. (25 p q 1)1 21. 22. 64min 50xivs xi ya 23. + 24. In Problems 25-30, distribute and simplify. 25. x( x1 - 2) 26. 53( x + 4) 27. 2y (1 + 3y) 28. 3a (2 - a ) 29. 423( 2 - 82 1) 30. 8p(pi - 4p ) In Problems 31-46, use rational exponents to simplify each radical. Assume all variables are positive 31. 1/8 32. Vx6 33. V
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Consideren la siguiente recta numrica, en donde a, b y c son nmeros reales distintos. a) En qu intervalos los nmeros reales satisfacen la desigualdad (x - a)(x -b)(x -c) > 0 ? Expliquen. b) En qu intervalos los nmeros reales satisfacen la desigualdad (x - a)(x - b)(x - c) < 0? Expliquen

Need help with all three images-Same problem just not in order. Need help with A-F This Question: 18 pts 8 of 9 An agent for a residential real estate company in a suburb located outside a major city has the business objective of developing more accurate estimates of the monthly rental cost for apartments. Toward like to use the size of an
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The mean of the uniform distribution between 0 and 1 is p. = 0.5. Estimate this value with a 95% condence interval using samples of 100, 200, 400, 800, 1600, 3200, and 6400. Plot the confidence intervals using the computer and show graphically that the estimates converge to 0.5. (Problem 2.4) In a store, 40% of customers make a single purchase.
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LAJ 0/4 Points] DETAILS PREVIOUS ANSWERS DEVORESTAT9 4.E.074. ASK YOUR TEACHER PRACTICE ANOT Once an individual has been infected with a certain disease, let X represent the time (days) that elapses before the individual becomes infectious. An article proposes a Weibull distribution with a = 2.3, B = 1.6, and y = 0.5. [Hint: The two-parameter
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#4 and 5 please i'm so stuck 3. Find the number of non-negative integer solutions of :51 + $2 + 3:3 + $4 5 6. 4. Show that more than half of the selections of 6 from 49 in the UK Lottery have no two consecutive numbers. 5. Find the number of ways of placing 4 marbles in 10 distinguishable boxes if (a) the marbles are distinguishable, and no box
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If the work required to stretch a spring3ft beyond its natural length is9ft-lb, how much work is needed to stretch it9in. beyond its natural length?

please provide solution in paper translated in English Aufgabe (a) Es sei q E R \\ {1} beliebig. Zeigen Sie mittels vollstandiger Induktion, dass fur jedes n E N gilt: q shall be any of q ER\\(1}. Show with full induction that for every n E N _q* = 9- qn+1 applies: k=1 1 -q (b) Beweisen Sie, dass fur jede naturliche Zahl k E N gilt: 10* = 1 mod 3.
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Statistics Question 4 (i). The average lifespan of a Ghanaian is 57years. The average lifespan of males in Ghana is known to be 55 years while the average lifespan of females in Ghana is known to be 60 years. The average lifespan of people from the Northern region of Ghana is known to be 58 years while the average lifespan of people in the East
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how do i work out how many items i would have to sell in order to breakeven. I have attached screenshots to show. e. Based on your current prices, roughly how many items would you have to sell per month to cover those costs (breakeven)? Coffee Retail itemsCoffee Bollled Banana Carrot Choc chip regular water cake cake cookie Direct Cost $0.69 $0.69
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Solve the following system using the substitution method. Submit your answer as an ordered pair (x,y) without spaces. If there is more than one solution, enter (x,mx-b) where m and b are integers. If there is no solution, write: No Solution 3x-y=9 -x+1/3y=-3

Round to the nearest cent or tenth of a percent. Markup = $29.17; selling price = $142.67. Find the cost and the rate of markup based on the selling price.

Determine the change of entropy of the universe during this equilibration process. [If you were unable to solve the previous part, a correct algebraic expression will receive full credit]. (d) (2 pts) By what factor did the number of microstates of the water molecules increase during this equilibration process? In other words, what is the ratio f

A circular sprinkling system can be set to water only a sector of the circle. The radius of the sector is 20 feet and its central angle measures 1 radian. What is the length of the arc formed by this sector, in feet? 10 points 10 feet 20 feet 30 feet 60 feet

Which function is not a radical function? Question 2Select one: a. begin mathsize 14px style f open parentheses x close parentheses equals square root of x plus 2 end root minus 5 end style b. begin mathsize 14px style f open parentheses x close parentheses equals 2 square root of x minus 5 end style c. begin mathsize 14px style f open parentheses

1. Given the 1st order linear equation y' - 3y = 2x . a. Use the method of undetermined coefficients (Sect. 3.5) to find the general solution to the DE. (6 pts) b. Theorem 1 (p. 49) guarantees a unique solution to such a DE given a particular initial condition. Show that you get the same solution as above using the integrating factor approach
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2. An actuary wants to prove that the unofficial drinking age is not necessarily 21. It is assumed the age is normally distributed with a known population standard deviation of 5. Let there be a sample of 25 millennials with an average drinking age of 16. The significance level should be strong because the actuary wants to use this test to show
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Name: Date Topic Class: Main Ideas/Questions Notes/Examples Literal Equations SOLVE EACH OF THE EQUATIONS BELOW FOR X: 2x - 5 = 13 ax-buc Quick Write Identity the similarities and differences between the two equations: 1. A = / solve for w 2. A = bu solve for h One-Step Problems 3. d = n solve for r 4. 1 = prt solve for r 5. V = hok solve for # 6.
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Qu sistema de ficheros es comn en un dispositivo iOS

Find the slopes of the lines /1, /2, /3, and /4 in the figure below. line /1 line /2 line /3 line /4 -2 2 -2
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I really don't know how to answer this one. Please help me. Visit the NASDAQ historical prices weblink . First, set the date range to be for exactly 1 year ending on the Monday that this course started. For example, if the current term started on April 1, 2018, then use April 1, 2017 - March 31, 2018. (Do NOT use these dates. Use the dates that

help me solve this 3. Let fn(x) = 14727z for each n E N and x E (0, oo). Show that {fn } converges uniformly. What can you say about the convergence of {fh}
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Matriks time/space berfokus pada dua dimensi masalah kolaborasi waktu dan ruang. Face-to-face interaction merupakan interaksi yang dilakukan dalam kondisi

Select a broad subject area of interest to you and 'dissect' it into subareas.

Crickets make their chirping sound by sliding one wing cover very rapidly back and forth over the other. Biologists have long been aware that there is a relationship between temperature and the frequency with which a cricket chirps. The JMP package was used to fit the linear regression equation to a data set containing 2 variables, chirps
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Hello, I am confused with Task 5 part B... Question: Two 4-sided dice are tossed 10 times. Leave probability answers as percents rounded to one decimal place. b) What is the probability that a sum of 4 occurs, at most, twice? I made a chart listing all outcomes and there are 3 possible outcomes to get a sum of 4 ... so is the answer 3/16?? I feel

for the funtion f(x)= 2x^2 /x^2-4. any inflection points

3. A movie theater sells tickets for matinee showings for $7.00 and evening showings for $10.50.. Write an expression that represents the total amount the theater can earn selling tickets. 4. A bakery sells muffins for $1.25 each and scones for $1.75 each. Write an expression that represents the total amount the bakery can earn selling muffins and

Completa con los verbos ser, estar o haber, segn el contexto. . Las enchiladas el platillo tpico de la casa. Nosotros vegetarianos, as que no comemos carne. una mesa disponible para dos personas? La sopa muy caliente, tengan cuidado. algo sin gluten en el men? Ellos satisfechos con la comida. Mis abuelos excelentes cocineros. suficientes

Write the number of simple statements here and underline each of the simple statements Once newborn babies become infants, the baby can no longer see in black and white

Descriptive Statistics N Minimum Maximum Mean Std. Deviation Better for man to work, woman tend home 980 1 4 2.96 .846 Valid N (listwise) 980 Statistics Better for man to work, woman tend home N Valid 980 Missing 483 Std. Deviation .846 find the The (valid) number (N), mean, and standard deviation and the variable

Show complete work on your worksheet! You many use the !, nCr and nPr functions on your calculator to CHECK your calculations, but you must show the formulas with appropriate values substituted in first. There are 15 members on a city council. On a recent agenda item, 8 of the council members voted in favor of a budget increase. How many possible

A fair die is tossed seven times. What is the probability of getting "6 dots" on the 7th toss, given that the first toss was "1 dots"? A.0.167 B.1.000 C.0.833 D.0.023

here were 32,000 people at a ball game in Los Angeles. The day's receipts were $236,000. How many people paid $13 for reserved seats and how many paid $4 for general admission? 7) A) 27,000 paid $13; 5000 paid $4. B) 12,000 paid $13; 20,000 paid $4. C) 5000 paid $13; 27,000 paid $4. D) 20,000 paid $13; 12,000 paid $4. 1

Name the study designs for the following scenarios. If it as an experiment, what is the treatment? (a)(0.5 marks) A survey on youth and smoking contacted by telephone 300 smokers and 300 nonsmokers, all 14 to 22 years of age. (b)(0.5 marks) Does air pollution induce DNA mutations in mice? Starting with 40 male and 40 female mice, 20 of each sex

A STAT 200 instructor believes that the average quiz score is a good predictor of final exam score. A random sample of 10 students produced the following data wherexis the average quiz score andyis the final exam score. (a) Find an equation of the least squares regression line. Round the slope and y-intercept value to two decimal places.Describe
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Consider the following function f(z) = 3exp(z) + 10x In(z) What is the functions' first derivative? Of'(z) = 3exp(x) + 30x2In(2) + 10x2 1 Of' (z) = 3exp(z) + 30z2In(z) + 10z2 Of' (z) = 3exp(z) + 30z2In(z) Of' (z) = 3exp(z) + 30z2In(z) + 10z2+ 1 O none of the above
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Title Paragraph Subtitle Subtle Em... Emphasis Int Styles 7 5. Let X and Y be independent; each is uniformly distributed on [0, 1]. Let Z = X + Y. Find: E[Z [ X]. Your answer should be a function of x. 0.2 if y = 1 6. Suppose that f(y | X = 2) = 0.3 if y = 2 0.5 if y = 3 Find E[Y | X =2]. 0 otherwise 7. Suppose that 250 students take a test, of
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Solve my written homework, it's about functions and inverse functions. and finding domains of functions / inverse functions, and determine functions 6. Determine functions f(x) and g(x) so that (fogXx): 1I'l:3;.:+5. Which one of the following could NOT be choices for f(x) and g(x)? (A) f(x)= n+5 and g(x)-12x as) f(x)=~/J_r and g(x)-12x.s
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Question ? {10 points] Which of the following rational number examples provides a proof of the existential statement "Elq E Q, 1m E Q"
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Please refer to hint: Is this paired data (dependent on the unit of observation. See attachments. The pvalue of 0.033 provides strong evidence against H0. H0 is rejected at or = 0.05. You decide to recommend further evaluation of the program. The pvalue of 0.002 provides overwhelming evidence against H0. H0 is rejected at o: = 0.05. You decide
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Polynomial and rational functions can be used to model a wide variety of phenomena of science, technology, and everyday life. Choose one of these sectors and give an example of a polynomial or rational function modeling a situation in that sector.

Consider the planes given of; the equations 2: + 23*; z = 2, 4;: + 2y + 3,3 = 7. {a} Find a 1sector 1! parallel to the line of intersection of the planes. a = [In] Find the equation of a plane through the origin 1which is perpendicular to the line of intersection ofthese two planes. This plane is
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12:12 . 26 1 of 1 Ex Tracking Chromosomal DNA Movement Through Mitosis Experiment Inventory Materials (2) Sets of Different Colored Pop-it Beads (32 of each - these may be any color) (8) 5-Holed Pop-it Beads EXPERIMENT 2: TRACKING CHROMOSOMAL DNA MOVEMENT THROUGH MITOSIS In this experiment, you will follow the movement of chromosomes through
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from two separate days (1 - sunshine day; 2 - gloom day) and proceed to see if there is a difference among prospective students in thier intention to attend QU based on their campus tours days. Your dependent variable is Intention to attend QU (measured on a 7-point scale with higher values indicating higher intention to attend/enroll). The

Suppose that each of two investments has a 4% chance of a loss of $8 million, a 3% chance of a loss of $3 million, and a 93% chance of a profit of $2 million. They are independent of each other. a. What is the VaR for one of the investments when the confidence level is 95%? b. What is the expected shortfall when the confidence level is 95%? c.

Basketball players in the NBA average about 75% success in free throws. If there are 23 free-throw attempts in a game, what is the probability that more than 20 are good?

The population of grasshoppers in a certain area, in thousands, is modelled by the function begin mathsize 14px style G open parentheses x close parentheses equals 3 square root of 2 x minus 1 end root plus 15 end style. What is the range of this function? Question 3

D Exercise 2.8." Assuming a uniform prior on fH, P(fH) = 1, solve the problem posed in example 2.7 (p.30). Sketch the posterior distribution of fi and compute the probability that the N+1th outcome will be a head, for (a) N = 3 and nH = 0; (b) N = 3 and nH = 2; (c) N = 10 and nH = 3; (d) N = 300 and nH = 29. You will find the beta integral useful:
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Write the point-slope form of the equation of the line satisfying each of the following conditions. Then use the point-slope form to write the slope-intercept form of the equation in function notation. x-interceptequals5 and y-interceptequalsminus1. What is The point-slope form of the equation is

find the measure of the angle between the three-dimensional vectors a and b. Express the answer in radians rounded to two decimal places, if it is not possible to express it exactly. a = i 2j + k, b = i + j 2k

Spam filters in an email program are similar to hypothesis tests in that there are two possible decisions and two possible realities, and therefore two kinds of errors that can be made.The hypotheses can be considered as: H 0 : Incoming emailing message is legitimate. H a : Incoming emailing message is spam. Which of the following is the correct

Help calculating value of the level of significance Question 1 - of 6 Step 5 of 7 01:11:34 A publisher reports that 53 % of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 250 found that 44 % of the readers owned a
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As related to Chi-Square, is independence related to the rejection of the Null Hypothesis or the acceptance of the Null Hypothesis? Group of answer choices The Rejection The Acceptance

What is the maximum and effective tax rate of the graph ? \f
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Goods costing $28.74 at the beginning of the year 1940 cost $181.57 at the beginning of the year 1969. Find the average annual inflation rate over this time period. Express your answer the nearest thousandth of a percent. i need help solving this problem

The SAT Math test has a mean score of 520 and a standard deviation of 110. The distribution of scores is bell-shaped. According to the Empirical Rule, approximately 95% of the scores are between what two values? Group of answer choices 300 and 740 520 and 630 190 and 850 410 and 630

1. (18 pts) Consider the two vectors a = (6,2,3), and b = (4,1,1). (9.) Find the angle between a and b. (b) Find a third, non-zero vector c that is perpendicular to both a and b. (c) Find the area of the triangle determined by a and b
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HW 3 A fair die is called until & consecutive 315 0 ,Let N denate the number of and let Yi, ley be the ewvence c roll Define, S Yi. Find ESA
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Find the derivative of the function. g'(x) = _______? \f
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1. Find z-transforms of the following in closed form and their regions of convergence when possible. For sequences containing x(), find the transforms in terms of XO. (a) n.x(n) (b) cou(-n) (c) n x(n) (d) [c"!].u(n)
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Another question from homework I do not understand (1 point) Consider the following series. Answer the following questions. ( +9)" 2362" n=0 1. Find the values of x for which the series converges. Answer 0" inmmlrmtatiqn): 2. Find the sum of the series for those values of x. Sum
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Suppose that the random variable X has probability density function () = 12 2 (1 ), 0

5. The table shows recommended dosage of liquid Children's Tylenol with respect to weight. 24m48' (b) Compute lim D(:c) :r>48+ (0) Compute lim D(a:) 3)48 (d) Compute the dosage for a child who weighs 48 pounds
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What is they y and x intercept 6 Money Earned (in thousands) Number of Price Increases
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N0 5.DESIGN AND BEHAVIOURAL SIMULATION OF THE UNLOCK UNIT By using a modular HDL design technique. design the unlock unit as illustrated in Figure 2.2. Develop its corresponding test bench and verify functionality of the design. Name each of the Verilog modules using the suggested module names as shown in Figure 2.2. The LED_OUT bus is active LOW
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Discussion: Linear vs. Exponential Growth Discussion: Linear vs. Exponential Growth In this module, we want to understand the difference between linear and exponential growth. Linear growth accurs when a guantity experiences the same mount of growth each time period, while exponential growth occurs when a quantity experiences the same percent
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The divorce rate in the United States during the years 1920-1996 can be modeled with the quantitative variables listed below. In Problem 1 you will examine an assumed linear model of the divorce rate as a function of socio-economic characteristics (as predictors). We will assume i.i.d. normal errors for the response values, and unknown constant

Problem List Next Problem (1 point) Let B = 0 8]. Find a non-zero 2 x 2 matrix A such that A2 = B. A = Hint: Let A = a b C d and then set up and solve a system of equations involving a, b, c, and d
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Solution ASAP 3) Determine if the sucession bn = 22/ In(n +5) is divergent or convergent (if it converges indicate to which it converges)
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Activity 2.2: Mathematical Operations of Signed Numbers Perform the indicated operations of the following signed binary numbers. Check your answer by converting to decimal number system. Show your solutions .37J. 1. 10101111 + 01110000 + 11011001 ANS: 2. 01101010 x 11110001 ANS: 3. 01100101 - 11 101000 ANS: 4. Add 00100001 and 10111100. ANS: 5.
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help please 6. A state's income tax for a single person in a recent year was determined by the rule below, where x is the person's taxable income. 0.04x, if OSX
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