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Mathematics Questions and Answers March 19, 2021

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In your statistical class, you are assigned to READ any books from a list of 5 books, how many different groups of 2 books are available from the list of 5 ?

What's a very easy method to memorize the unit circle?

normal distributions Problem 1 (40 pts). Two normal distributions are characterized by: P(wI) = P(w2) = 0.5 - (1). 12=( Derive the analytic form and sketch the Bayes decision boundary for E, =
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Chart entitled "The Deadly Rise in Human Population". The chart plots year on the x-axis and population in billions on the y-axis. The axis is divided into equal intervals of 10 years, from 1950 to 2050. The y-axis has equal intervals of 1 billion people. Which of the following features in the graph is misleading? a.) The data are obscured. b.)

\"Find the payment made by the ordinary annuity with the given present vaiue. $290,644; quarterly payments for 29 years; interest rate is 9%, compounded quarterly ' The payment is $D. (Simplify your answer. Round to the nearest cent as needed.)
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Multiply. left parenthesis x plus 9 right parenthesis squared(x+9)2

1 - Graphical Synthesis Refer to the diagram shown on the next page. Use the graphical method to design a four-bar linkage to move the object through the three positions shown. The moving pivots are given. The ground pivots will lie within the base. Show your work. (10 points)

The following histogram represents the distribution of acceptance rates (percent accepted) among 25 business schools n 2004.In each class interval, the left endpoint is included but not the right, so the class intervals are 10-15 (15 not included), 15-20(20 not included), etc... What percentage of the 25 schools have an acceptance rate below 15%?

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Consider the meaning of the integral below... Consider the meaning of integral below where ( ) represents the rate at which water is flowing into a bathtub, in gallons per minute, and represents the number of minutes since the water was turned on. Which of the following represents the meaning of the integral in words? 5 [w(t) dt The net change in
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Usted tiene 3 cuentas por cobrar as: dentro 5 meses $1.000.000, dentro de 7 meses $ 2.000.000 y $ 3.000.000 dentro de 12 meses. Su deudor le propone cambiar estos pagos por uno hoy de $ 2.500.000, dentro de 4 meses un pago de $1.000.000 y un ltimo pago dentro de 12 meses. Si la tasa de inters cobrada es del 2,67% mensual, calcular el valor del

A GaAs p-n diode is asymmetrically doped with Na=5x10^17 cm^-3andNd=4x10^16 cm^-3

2. Coding Scenario 4 (4 codes) Patient is a construction worker who fell off scaffolding at a building construction site. Patient is an employed construction worker
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Suppose that the function h is defined on the interval (-2, 2 as follows. -1 if-2
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For the anatomy and physiology class I am taking, I can earn college credit if I have at least a B in the class and get at least a C on the final exam. I have a B in the class and want to take the test tomorrow, but do not feel ready at all even though I have been studying all week every day all day long. If I don't get at least a C on it, then I

Hello I need some help on correlation which includes the intercorrelation matrix and finding the -lowest magnitute -highest magnitute -p value -degree freedom I have the table so If you can help please let me know. Thank you

Which of the following variables does NOT signify a statistic? Group of answer choices s s 2 p^ (phat) - x (x bar) Which of the following variables does NOT signify a parameter? Group of answer choices x(xbar) 2 P, population proportion

The average height of American men is 70 inches with a standard deviation of 3 inches. If you design a car that only works for people whose height is between 58 to 76 inches, what percent of American men can use the car?

Need help with e part. Please d) When I lived in Toronto, in the Fall I biked home from work in the dark. My route had 4 potholes on it and I hit all four each time. I'd start my commute with my bike light turned on, but it had a loose electrical connection so each time I hit a pothole with probability p the light would switch from on to off or
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Let n be an integer greater than 1. Prove: If for every pair of integers, a, b (nab na nb) then n is prime.

The entire graph of the function f is shown in the figure below. Write the domain and range of f as intervals or unions of intervals. domain = C range =
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#4 Consonant Matrix pt1 Voicing PLACE Manner --> Stop Fricative Affricate Nasal Liquid Glide Voiced (yes/no) / b / / p / / d / / t / / g / / k / / v / / f / / / / / / z / / s / / / palatal Voiced / / / h / / d / / t / / m / / n / / / / l / / r / / w / / y / Obstruent Sonorant

1.Give a 95% confidence interval for the population mean age of the trees using the ratio estimator. Is the use of the ratio estimator justified in this case? 2.Give a 95% confidence interval for the ratio of the mean age to the mean diameter in the stand. 3.Give a 95% confidence interval for the mean of the age-to-diameter ratio of trees in the

Solve for b and c 6. For each matrix A and ordered basis , find [LA]. Also, find an invert- ible matrix Q such that [LA]B = Q-1AQ. (a) A = and B= {(1) . (2 )} 2 (b) A = 2 and B = 1 (1} 1 1 (C) A = 2 HO and B= ( 67
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kindly solve the question The difference between the number of customers in line at the express checkout and the number in line at the superexpress checkout in Exercise 3 is X, - X2 Calculate the expected difference. Reference Exercise 3 A certain market has both an express checkout line and a superexpress checkout line. Let X1 denote the number
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For each of the following distributions, give the Method of Moments Estimator in terms of the sample averages Xn and Xn^2, assuming we have access to n i.i.d observations X1,..., Xn. In other words, express the parameters as functions of E[X1] and E[X1^2] and then apply these functions to Xn and Xn^2 a) Xi ~ Ber(p), pe(0,1) b) Xi ~ Poiss (lambda)

The average number of words in a romance novel is 64,130 and the standard deviation is 17,013. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the proportion of all novels that are between

Quiz RES 710 week 1 What is the level of measurement for the variable: rating of the overall quality of your campus coffee shop, on a scale from excellent to poor?

cuatro ruedasA, B, C y D de 60, 30, 40 y 80 dientes (respectivamente) se disponen de la siguiente manera:A engrana con B, B est unida por un eje con C y esta engrana con D. Si la rueda D dio 75 vueltas en 3 minutos, cuntas vueltas tuvo que dar la rueda A en un minuto

Monteverdi's "Le Orfeo" was the first complete oratorio. Question 14 options: 1) True 2) False

5. Completa esta frase con saber en la form apropiada del pretrito o el imperfecto: Cuando Francisco ________ que lo haban aceptado en la universidad, empez a llorar de felicidad porque _________ que sus paps estaran muy orgullosos. Responses a. supo & supo a. supo & supo b. supo & saba b. supo & saba c. saba & supo c. saba & supo d. saba & saba

find three geometric means between 12 and 27. Give answers in radical form, not decimal approximations

How do I solve this? The red blood cell counts (in 10 cells per microliter) of a healthy adult measured on 6 days are as follows. 49, 51, 50, 55, 53, 48 Find the standard deviation of this sample of counts. Round your answer to two decimal places. (If necessary, consult a list of formulas.) X
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Polynomet p( ) delas med ( + 3) (x - 4) (x - 5). Vad ar resten r(x) om p(-3) = 1, p(4) = 1, p(5) = 1? r(x)
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Find dz, which is called the differential of z: a. z= 3x2 + xy - 2y3 b. z = 2x + 9xy ty C. Z= -X(x2 + 3) d. z= (x -8)(7y +5) e. z = (5x2 + 7y)(2x - 4y3) f. Z= 9y ( x - y ) g. z= (x - 3y)3
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A flat-plate solar collector is to be installed on the roof of a house for hot water needs of the house. The collector costs $650 including material and labor. It is estimated that the collector will save the house $375 per year from the energy it saves. Taking the interest rate to be 7 percent, determine the discounted and simple payback periods

Challenge 2: BOM Part Explosion (20 Points) Once we have developed the BOM diagram, we can determine the number of units of each item required to satisfy the demand for a new order of 50 Awesome speaker kits. Explode the requirements below. An example of the part explosion is given below for Part B. Complete part explosion for Part C - Part G.

The level of significance is measured by: Select one: a.1- b.1- c. d.

In teaching the concept of fractions, a teacher might start with a familiar context, such as pizza slices. This approach uses students' prior knowledge of pizza as a whole and its division into parts to introduce fractions, focusing on the skill of understanding parts of a whole without the complexity of unfamiliar content. What type of

Transformers-Self Attention [30 pts] In this question we will compute the transformer self-attention covered in the lecture. You will be required to compute the value of different matrices as mentioned below and in the lecture notes. For all questions in this section, unless otherwise stated work must be shown in the form of matrix multiplications

The prices of used books at a large college bookstore are normally distributed. If a sample of 23 used books from this store has a mean price of $27.50 with a standard deviation of $6.75, calculate the following for a 95% confidence level about the population mean. Be sure to show your work. a. Degrees of freedom b. The critical value of t c. The

Write the sentence in symbolic form. Use p , q , r and s as defined below. p : Stephen Curry is a football player. q : Stephen Curry is a basketball player. r : Stephen Curry is a rock star. s : Stephen Curry plays for the Warriors. Stephen Curry is a rock star, and he is not a basketball player or a football player.

Write an equation of the form y = a(x h)2 k with vertex (2, 10) that models the flight path for the toy rocket, assuming the rocket leaves the ground at (0, 0). (5 marks) Hint: to find the value of a, use the coordinates of a point where rocket leaves the groung and your knowledge of h and k values of the vertex form

you have a 50% disinfectant solution and a 40% disinfectant solution. How many gallons of each solution should be mixed to make 25 gallons of a 46% disinfectant solution? define your variables equations

The sun should be avoided with ___________________. a. Keflex b. Amoxil c. Z-Pak d. Cipro

Find the value of the following zero-game and determine some optimal strategies for each of the players, where the columns of the matrix are:[8,4,0];[3,7,3];[4,1,8];[1,6,5]

For any nonzero real number r, there is a unique real number -r called its _____. Multiple choice question. identity for addition inverse for addition identity for multiplication inverse for multiplication

It is estimated that 40% of all households in the U.S. have a pet dog. If you take a random sample of 30 U.S. households, what is the expected number of households that have a pet dog?

Zane is ordering a sundae at a restaurant, and the server tells him that he can have up to five toppings: a cherry, hot fudge, caramel, peanuts, and butterscotch sauce. Since he cannot decide how many of the toppings he wants, he tells the server to surprise him. If the server randomly chooses which toppings to add, what is the probability that

1. Write the Fourier series. Find do , an and bn terms of the Fourier series for the given function: [10 marks] - 1 - HIS X
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This week you will look at misleading information that you are exposed to every day. Find an example of a survey or poll or even a tweet that you think might be misleading. How would you support your conclusions? You want to use statistical reasoning here not personal opinion. Places to look might be online polls where anyone can answer.If the

lets start at the basics... what is it? how does it work? do you have something you can show me

4. What trigonometric ratio would you use to find the distance from the base of the tower to your keys? Identify your choice, and then calculate the distance. ( 4 points: 1 point for the ratio, 2 points for shown work, 1 point for the answer) Trigonometric ratio (name): ___________________________

give me example how to use Rstudio software to create multi linear regression model by data

I: Events A and B are independent. The probability of event A occurring is 0.64 The probability of events A and B occurring together is 0.24. What is the probability of event B? Enter a decimal, to the nearest thousandth: in the box. \"BPS E Calculator I: What twooimensional crosssections could be obtained from a right rectangular prism? Select
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Let e i be i-th residual of the OLS regression of y on X in the classical regression model, and let i be the true random disurbance. Prove that e i - i - P -> 0.

Median Versus Mean For a given vector v Rn, the mean can be found as the solution to the optimization problem min vx12, (1) xR where 1 is the vector of ones in Rn. Similarly, the median (any value x such that there is an equal number of values in v above or below x) can be found via xR min vx11

Find z such that 88.1% of the standard normal curve lies to the left of z . (Enter a number. Round your answer to two decimal places.) z = Sketch the area described. (Select the correct graph.)

for the following data what would be the standard deviation for each? the data is as follows: 0, 4.5x10^-5, 4.4x10^-5, 3.2x10^-5, 3.0x10^-5, 2.6x10^-5

Write the quadratic equation whose roots are 5 and 2, and whose leading coefficient is 2
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C 2% webassign.net/web/Student/Assignment-Responses/submit?pos=15&dep=34231018&tags=autosave#question3287360_44 0 Untitled document -. https:/learn.liberty. What Does the Bible. Billing & Insurance.. 140+ Preschool The. y! teachers pay teache. All Bookmarks You can download an offline GeoGebra Calculator at: https://www.geogebra.org/download 21.
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An object is launched at 39.2 meters per second (m/s) from a 42.3-meter tall platform. The equation for the object's height s at time t seconds after launch is s(t)=4.9 t^2+39.2 t+42.3, where s is in meters. make a table of values and graph the function. Approximately what is the maximum height of the object? Write clearly and explain everything

Suppose that f (x) L is not equal to 0 as x a. Show there exists > 0 such that |f (x)| > (|L|)/ 2 for all 0 < |x a| < .

Annika was having fun playing poker. She needed the next two cards dealt to be diamonds so she could make a flush (five cards of the same suit). There are 15 cards left in the deck, and five are diamonds. What is the probability that the two cards dealt to Annika (without replacement) will both be diamonds? Answer choices are in percentage format,

what is the doubling rate model for prediction of covid19 monthly or weekly cases from March to October in paranaque city, philippines? DOH link: https://www.doh.gov.ph/2019-nCoV filter epidemology: NCR by province/HUC/ICC: PARANAQUE CITY

c. What are the two meanings of the term functional analysis

Andy and Lilian together clean their house in 4 hours. Working alone, it takes Andy 6 hours to clean the house. How long does it take for Lilian to clean the house
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A list of college wrestling champions for the years 1981-2005 is given in the table. Each college has been associated with a particular letter. Use this data to complete parts a through d below. a. frequency of each of the five colleges College Frequency A 4 B 3 C 5 D 5 E 8 b. Compute the relative frequency for each of the five colleges. A= B= C=

Prove that the two circles shown below are similar. \f
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Given the following z scores, find the area below z : a.1.68b.-0.45c.-1.96d.-0.52e.2.58

9 (5 points) Title:AlgwFin-U7-Test-Std12-22 Convert 30 minutes to hours a hour b 1,800 hours c 108,000 hours d 1/120 hours

Please see the picture to see my question! thank you! Let J > K and assume the moment conditions E[zisi] : 0 and the empirical counterparts m(9)=l 2?:1 231(3):: x33) 2 n'1Z'(y X5). Z is a n X J of instruments and X is n X K. Derive the corresponding Gh-Ih-'Iestimator and give a short interpretation of your result
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TOVIVE LITE TONOWIng WESLIPLIVE SLaLISLILS. Measures of Central Tendency: Mean, Median, and Mode Measures of Variation: Variance, Standard Deviation, and Range (a formula is not needed for Range)
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istory class is comprised of9 female and3 male students. If the instructor of the class randomly chooses6 students from the class for an oral exam, what is theprobabilitythat4 female students and2 male students will be selected? Round your answer to3 decimal places. (If necessary, consult alist of formulas.)

homework question A 30 sided die is rolled four times and then a coin is flipped two times. Find the probability that the outcome is an even number on the first row in a multiple of four on the second row and a five on the third row in a multiple of five on the fourth row and they had on the first flip of the coin and a tail on the second flip of

Please help me. 'v'a rious demographic and cardiovascular risk factors were collected as a part of the Prevention of REnal and Vascular END-stage Disease [PREVENDII study, which took plaoe in the Netherlands. The initial study population began as 3,592 participants aged 28-?5 years who took a first survey in HST-1998. Participants were followed
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How do I develop a chart or diagram that will illustrate howprenatal development is influenced by environmental or genetic factors?

Standard 14: Infinite Limits and Limits at Infinity (Section 2.2) Problem 1: Use the graph of f() to answer the limit questions below. 8 -10-9 -8 -7 -6 -5 -4 -3 -2 -1 3 4 5 6 7 8 9 10 a) lim f(x) I (2) bj lim f(x) I (2) c) lim f(x) d) lim f(x) T-4-00
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A 3-phase 60 Hz transmission line has 3 ACSR conductors, code named "Canary", with 900,000 circular mils cross-section each. The conductors are arranged to form an equilateral triangle with 18ft spacing. Neglect the influence of the earth. (a) Find the 60 Hz resistance per phase for a 50-mile long section at 50C. (b) Find the approximate current

need help with 2-10 please 2. [-/6 Points] DETAILS BBBASICSTAT8 7.1.009. MY NOTES PRACTICE ANOTHER At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric people lived in the pueblo. Wood from several excavations gave a mean of (year) 1254 with a standard deviation of 25
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A company that produces fine crystal knows from experience that 10% of its goblets have cosmetic flaws and must be classified as "second." a. Among six randomly selected goblets, how likely is it that only one is second? b. Among six randomly selected goblets, what is the probability that at most two areseconds

Consider the path x(t) = (t, 1/t^2) Compute the curvature (t) of the path.

Question 6 (1 point) Give the angle measure in degrees for angle X. Enter the value only without any label for degrees or any spaces. cos X = X =____________

When using a chi squared test, how do you determine how many classes to use. And does the amount of classes have any impact on the result. Also when testing for a log normal gaussian distribution should all your data be the log(value) or should they just be the value.

MC 6 Knowledge check ITL 608 After determining what students should know and be able to do within a standard, teachers are able to: Question 2 options: Determine essential questions for a lesson Determine student learning outcomes for a lesson Plan instruction for all students All of the above

36. Recall that a function f : X _>- Y is onetoone if whenever f(x1) : fag), x1 = x2. Show that a linear transformation T : V > W is one-toone if and only if kcr(T) consists of only the zero vector
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Question 4 (1 point) (07.03 MC) Find the area of the sector of the circle with central angle of 205 and radius of 6 cm. Use 3.14 for pi() and round to the nearest hundredth. a 47.60 cm 2 b 64.37 cm 2 c 87.61 cm 2 i am a student need help

Commuting times for employees of a local company have a mean of 63.6 minutes and a standard deviation of 2.5 minutes. What does Chebyshev's Theorem say about the percentage of employees with commuting times between 58.6 minutes and 68.6 minutes?

If a study is conducted using a significance level of 15%, there is a 15% chance of making a ? A) type 3 error B) type 2 error C) type 1 error D) computable error

Suppose a county adds a local tax rate of 2 % 2% to the CA state tax rate which increases the total tax rate to 6.3 % 6.3%. How much sales tax will be charged when buying something that costs $ 36.42 $36.42. Round your answer to the nearest cent

Question: Please help me understand thing the process on this equation up Solve the equation for x. Select the correct choice below and, if necessary, il in the answer box to complete your choice. log x25 = - 2 O A. x = I] (Simplify your answer.) Q B. There is no solution
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What is the minimum acceptable flow at the base of the riser for a pipe-schedule sprinkler system in an ordinary hazard (group 1) occupancy? Calculator 250 gpm (946 L/min) 500 gpm (1,893 L/min) 700 gpm (2,649 L/min) D 850 gpm (3,218 L/min)

The probability of a potential employee passing a training course is 86%. If you selected 15 potential employees and gave them the training course, what is the probability that more than 11 will pass the test?

Find an angleAthat is coterminal with an angle measuring770, where0A <360. Do not include the degree symbol in your answer. For example, if your answer is20, you would enter20.

40. Rewrite the logarithmic equation 1084 16 - 2 in exponential form. a. 16 = 4 b. 42 16 C. 416 = -2 d. 4 /16 = -2 . 47 = 16
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The differential equation that models a situation in which a growing population seems to reach a limit is known as the logistic equation or Verhulst equation, is expressed as \f
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The amount of worker movement about a shop, the number of collisions with equipment, and the number of falls can be reduced by proper equipment placement and adequate traffic lanes. Group of answer choices True False

The amount of time (in minutes) it takes for Erin to drive to work in the morning is normally distributed with mean 24 and variance 25. Find the minimum time of the longest 48% of Erin's morning drive times to work. Do not include any units in your answer.

which measure of variability id equal to 13 in the following set of data 2 4 9 10 15 range variance standard deviation spread

The wheel spinner shown here is soul twice. Find the sample space, and then determine the probability of the following events. -mind you the spin wheel has 0,1,2,3,4 and the arrow is point to the zero first. 1.) an odd number on the first spin and an even number on the second spin(Note:0 is considered even) 2.) Even numbers on both spins 3.) A sum

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