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Mathematics Questions and Answers October 07, 2022

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For a data set of the pulse rates for a sample of adult?females, the lowest pulse rate is 39 39 beats per?minute, the mean of the listed pulse rates is x overbar=72.0 beats per?minute, and their standard deviation is s 18.9 For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 39 beats per minute, the mean of
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Given that square roots of negative numbers sometimes arise when trying to solve quadratic equations, why do you think cubic equations turned out to be the catalyst for developing complex numbers

Hi, I am having trouble identifying what kind of probability Part 1 is? I was going to do a binomial but I don't think that is applicable here. Parts a, b, c seem confusing to me because I don't know how to set it up. I think part C requires division because it says "given." thank you! I am thinking this will be using the laws of probability in

A storage closet holds twelve boxes stacked upon each other, with each box being 10 inches high. How many feet are there between the top of the third box and the bottom of the tenth box? 2.5 70 20 10 5

Se sigue la ley de De Moivre, si sabe que 2 p30=34/35 y Calcule el valor presente actuarial de un seguro con periodo de diferimiento de 10 aos para (20)

For a research paper, a student spent 4/7 hr searching the internet on website A and 1/4 hr on website B. How much longer did she spend on website A than on website B

I need help with the last part of this question (The value of df) Forty different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 76 sec, what does of denote, and what is its value? What does of denote? O
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Mean time to gambler's ruin Let 1 , 2 , . . .be independent with P( i = 1) =p and P( i =1) = q = 1p where p <1>n = S 0 + 1 + + n . We know that if V 0 = min{ n0 : S n = 0} then E x V 0 = x /(12p). The aim of this problem is to compute the variance of V 0 . a) Show that (S n (pq)n) 2 n(1(pq) 2 ) is a martingale. (b) Use this to conclude that when S

Consider the initial value problem a\": [3 j; 5(0): [31] Find the eigenvalue A, an eigenvector 51. and a generalized eigenvector 52 for the coefficient matrix of this linear system. thl o9 {1.1:}. Cl help (numbers) help (matrices) Find the most general realvalued solution to the linear system of differential equations. Use a! as the independent
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A one-way ANOVA was conducted at a = 0.05. The study involved three (3) different groups with 12 subjects in each. The means for each group were as follows: M, = 10.92, M2 = 13.83, and M3 = 14.92. The sum of squares values is shown in the table below. Source SS df MS F P Between-treatments 102.72
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point(s) possible For the function f(x) =4x - 9, determine whether f(x) is one-to-one. If so, (a) write an equation for the inverse function in the form y =f (x), (b) graph f and f on the same axes, and (c) give the domain and the range of f and f . If the function is not one-to-one, say so (a) Write an equation for the inverse function in the
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Thank you very much I will rate highly for all parts! Problem 1. 30pts (part a -10 pts, part b-20pts) If Y1, Y2 ... Yn is a random sample with parameter 0, (0 > 0) from a density function: f(y|0) = 02 ye-y/8, y > 0 a) Write down the likelihood function. b) Find MLE 0
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Question Find the graph of the solution set of the following system of linear inequalities. y> I-2 y
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If 1,2, ... , are independent exponential random variables having respective parameters 1, 2, ... , , then (1,2, ... , ) is exponential with parameter

The same amount of trash from a landfill is recycled every day. The function below shows the total number of tons of trash n left in the landfill after x days. Assume that new trash is not added to the landfill. n = 50000 - 1000x What does the number 1,000 represent? O Amount of trash left after one day O Amount of trash recycled in x days O

For each of the pairs of quantities, identify if they are directly, inversely, or not proportional. Complete parts (a) through (j). (e) volume of water : weight of water inversely proportional not proportional directly proportional

Find f ' ( a ) . f ( t ) = 4 t + 14 t + 4 To find f ' ( a ) , we will use the formula f ' ( a ) = lim t a f ( t ) f ( a ) t a . Since f ( t ) = 4 t + 14 t + 4 we have f ' ( a ) = lim t a 4 t + 14 t + 4 4 a + 14 a + 4 t a . Simplifying everything we get f ' ( a ) = lim t a =

HI there, would anyone please be able to tell me what the standard deviations above 1 mean? I calculated my standard deviations for my data sets and one of them I got 32.33. what does this mean?

Un hotel en la ciudad posee 50 habitaciones a un costo de 1400.00 por da todas las habitaciones son rentadas; mientras que si la tarifa se incrementa a L 500.00 por da solo se pueden rentar 40 habitaciones.a.- Suponiendo una relacin lineal entre la renta p y el nmero de habitaciones x. Encuentre la ecuacin. b.- Cuntas habitaciones al da se

Using the Desmos calculator type in the quadratic equation x2 9. Which of the following characteristics best describes the graph

Ask a new Question A.Vantage Sdn Bhd has decided to conduct cash planning for the next three months using simulation. Net cash flows (receipts minus disbursement) during the month are random variables given by the probability distribution below (where, negative values represent net cash outflows and positive values represent net cash inflows). \f\f
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Which of the following statements is correct? Select one: a.Descriptive statistics are used to transform information into data b.An audit of accounts receivable will generally be based on a population c.None of the suggested answers are correct d.The role of inferential statistics is to help understand the characteristics of the sample e.Ratio

2 points A household budget shows that $147 of the family expenses is spent on utilities each month. If the total of family expenses was $3,345 this month, what percent of expenses is spent on utilities? Round your answer to the nearest 10th of a percent

please help as i am lost The cholesterol level of patients who had heart attacks was measured two days after the heart attack and then again four days after the heart attack.The researchers want to see if the cholesterol level of patients who have heart attacks reduces as the time since their heart attack increases. Data is in following table:

Page
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Cuando se ha hecho el dictamen sobre la solicitud del cambio se debe proceder a: 1 punto A. Registrar la solicitud de cambio. B. Evaluar la solicitud de cambio. C. Comunicar el resultado de la evaluacin. D. Revisar la solicitud de cambio

Assume that the heights of men are normally distributed with a mean of 70.0 inches and a standard deviation of 2.8 inches. a) If 1 man is randomly selected, find the probability that he has a height between 65 and 67 inches. b) If 64 men are randomly selected, find the probability that they have a MEAN height between 65 and 67 inches. c) Explain

re-writte in formal? Hi Team, quick Q about the Special Needs/ARC Accommodation hours. The ITP indicates that the school approves ARC Study time x 0.5 for this session. However, we know we do calculate the study time based 3:1 ratio which would be 33 + 11 + 7 + 5 = 56. How are we going to incorporate the ARC hours

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In the article "Foods, Fortificants, and Supplements: Where Do Americans Get Their Nutrients?" researchers analyze the nutrient and vitamin intake from a random sample of 16,110 U.S. residents. Researchers compare the level of daily vitamin intake for vitamin A, vitamin B-6, vitamin B-12, vitamin C, vitamin D, vitamin E and calcium. Unless
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Please help Use Euler's method to obtain a four-decimal approximation of the indicated value. Carry out the recursion of (3) in Section 2.6 (3) by hand, first using h = 0.1 and then using h = 0.05. ' = 2x - 3y - 1, y(1) - 8; y(1.2) y(1.2) ~ (h = 0.1) Y(1.2) = (/ = 0.05)
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Fake experts, please stay away Don't use Chat GPT or any A.I. tools to answer the question please do not copy from anywhere, and give a very brief explanation Answer only in text format, don't use handwriting Don't give direct answers please explain very clearly and answer all questions. Only answer if you know correctly, don't give wrong answers
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Equator - how is this special among the lines of latitude? Coordinated Universal Time (What is the correct abbreviation for this?) Altitude - what does this measure? What is the angle measured between the horizon and the line of sight to an object? How many Degrees of tilt from vertical is the tilt of the earth's axis Time zones, theoretical width

What should be the margin size, when writing a paper in MLA format? What should be the margin size, when writing a paper in MLA format? There is no rule for margin 1" from the left " all four sides 1" from the top, 2" from the bottom 1" all four sides

Ali and Ben enjoy playing a game of catch in the park. Ali throws a ball towards Ben, who is standing 24 metres away from Ali. You may assume that the park is completely flat and horizontal. The trajectory of the ball after it is thrown can be modelled by an equation of the following form: y = ax2 + bx + c, where y represents the height (in

Suppose that Verania and Josimar are roommates that need to complete some household chores. Vacuuming and washing dishes need to be done. They know from the last time they did these chores that it takes Verania 2 hours to vacuum and 1 hour to wash dishes. It takes Josimar 3 hours to vacuum and 2 hours to wash dishes. Josimar says it does not

tube b that in 5min is 0mm, 10min is 0mm, 15 min is 13mm 20min is 30mm. what is the total rate of tube B in mm/min

so if the fake coin falls in the group of 4, the second weighing will leave you with 2 more coins to weight. there should be one more weighing for a total of 3

4. Use linear approximation to estimate the value of v/25 and Taylor's Theorem (or the CMVT Error Estimation we did in class on Mar 26) to get an upper bound on the error of your approximation
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Please help E Home X E 3.5 Simulation X 5 Connect X E Topic: Module x * [Solved] value: X Lawton Ft. Sill | X Finish page - A X Homework He X + X C ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252FIms.mheducation.com%252Fmghmiddleware%2... GR . .. : Apps E 12 Readings and R... Library Genesis do...
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Suppose that L is the loss over 1 year which follows a distribution with density f(@) = Jar + 1 Z (x2 + 1)2' TER, where Z is the normalizing constant. (a) Compute Z; (b) Calculate VaR(0.05)
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Solve the system. State whether the system is inconsistent or has infinitely many solutions. If the system has infinitely many solutions, write the solution set with y arbitrary 4x - 5y = 3 8x + 10y - -6 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. There is one solution. The solution set is
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What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time 13, 8, 16, 8, 16, 11, 6, 14 Score 97, 69, 100, 86, 100, 83, 63, 100 Find the correlation coefficient:r= The null and alternative hypotheses for correlation are: The p-value is:(Round to

5. A variable is normally distributed with ( = 120 and 0? = 25. Draw this distribution and label the mean and standard deviation. Create a second horizontal axis below your x-axis and label this second axis Z What is the probability that a score randomly sampled from this distribution has a value a. greater than or equal to 127? (Mark the
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A large bank vault has several automatic burglar alarms.The probability is 0.6 that a single alarm will detect a burglar. If the bank installs eight alarms, what is the expected number of alarms that would detect a burglar?

Construction a scatterplot and identify the mathematical model that best fits the data.Assume that themodel is to be used only for the scope, x 1,2,3,4,5,6 y 9,13,25,27,31,46

Redacta una cita indirecta del siguiente escrito. No hay persona que est totalmente desprovista de conocimiento. Tampoco hay personas que solo posean algn tipo particular de conocimiento. En la sociedad de la informacin actual nos manejamos con mltiples tipos de saberes provenientes de diferentes fuentes. Esos conocimientos nos sirven para

A chicken coop holds a total of 10 hens or 20 chicks. If 25ths of the hens in a full coop are removed, how many new chicks could fit in the chicken coop? 2 4 8 10 12

Need help and explanation for this- Thank you- Mechanical pencil lead is manufactured with a mean width of 9mm. Because of variability in the manufacturing process, the distribution of the width for pencil lead is approximately normally with a standard deviation of 0.04mm. If any pencil lead thinner than 8.928mm is discarded, what proportion of

Please answer the following question based on the image. What is the expected project completing time? A. 86 hrs B. 51 hrs C. 65 hrs D. 34 hrs \f
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Compute thepresentvalue of an annuity in which hourlypayments (8760 each year) of $0.37 aremade for 4 yearsatanannual rate of 1.6%.

To estimate how long it will take to carpet a room, Aarvi uses a mathematical formula to multiply the square footage of the room by the rate at which she can lay down the carpet. This is an example of a(n) blank________ technique

Directions: The following questions(s) refer to the locations indicated on the diagram below. The figure presents a projection map of the world. There are five regions on the map labeled A through E. The approximate locations of each letter are as follows: A, central United States. B, the west coast of Africa near Cameroon and Gabon. C, northwest

7. In a certain population 1% of the people have a genetic defect. There is a test for this defect which correctly.r detects the problem 90% of the time. In 9.6% of cases the test will produce a false positive by predicting a genetic defect when it is not present. If a person gets a positive result {i.e. the test Says they have the defect) what is
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A health care professional wants to determine whether individuals with hypertension who take Atenololhave significantly lower systolic blood pressure than individuals with hypertension who do not take Atenolol. For individuals who have not been prescribed Atenolol, the population systolic blood pressure mean is 165 (= 165) with a standard

I don't know how to solve this.I don't know how to solve this.I don't know how to solve this.I don't know how to solve this.I don't know how to solve this. Prolem I Formulate a dual of this linear program. Select all the correct objective function and constraints. Select all that apply Consider the following LP: max-412:1 + $2 x1+2x2 =6 :31 :c2 23
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Question Three (8 marks) A specialty cheese producer makes a unique cheese spread for special occasions. The producer must decide whether to produce 7, 8, 9, or 10 cases of the unique spread. The cost to produce a case is $50 and the case retails for $90. Any unsold cases at the end of the month must be sold at 75% off the regular price. The
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Can You Escape A Maze Without Walls?https://fivethirtyeight.com/features/can-you-escape-a-maze-without-walls/ Edited by Oliver RoederFrom Tom Hanrahan, a new kind of maze:Bad news: the enemies of Riddler Nation have forced you into a maze. And this maze is weird. The rules are as follows.? You move between boxes in a grid: up, down, left or right,
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3:24 1 49 IMG_5438.PNG Done Ms. Bowden SP201 Fundamentals of Public Speaking Library Research Assignment 30pts In accordance with your speech class syllabus, you are required to complete a library research assignment that is worth five (5) percent of your total grade. 1. Select 3 three different informative speech topics, (think of it as teaching
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This Discussion is based on the article, \"Manager's Guide to Forecasting\" by David Georgoff and Robert Murdick from Harvard Business Review. Make sure to acquire this article before starting the Discussion. Georgoff, D. M., 8: Murdick, R. G. (1986). Manager's guide to forecasting. Harvard Business Review 64 (1), 110120. In this course, you will
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Which of the following are associated with the F3EAD process? Question 11 options: Assess Finish Deliver Analyze Fix Detect Exploit Forward Find Disseminate

Question 1 : The standard deviation of data is calculated to be 8.What is the variance? Question 2: A library has seven branches in its system.The number of volumes (in thousands) held in the branches are 83, 510, 33, 256, 401, 47 and 23.What is the standard deviation? (Answer as a whole number) Question 3: The following 6 values are a sample: 13,

Cite the regulation where placement of non self-supporting ladders is required to be at an angle ratio of 4:1 between the top support and foot

It is known that they variance of a population equals 484. If a random sample of 81 observations are taken from the 484. **with a .80 probability, what would the sampling error be? **with a probability of .80 and a sampling error of 3 or less how large of a sample would need to be taken ?

it is estimated that 3% of the athletes competing in large tournament are users of an illegal drug to enhance performance. athletes are tested to see if they are using illegal drugs and the test can come back positive or negative. the test for this drug is 90% accurate for users of the drug. This means 90% of the tests come back positive if the

For this assignment, we are looking for a lesson objective, the outcome of a single lesson. An objective is an outcome-based statement of what students will be able to do by the end of the lesson. It must be both measurable and observable, so students must produce something that will allow the teacher to evaluate their learning. Objectives are

brief explanation of the graph in cost of quality Long Description: The graph shows Quality improvement in the x- axis and the total cost on its y-axis. It consists of four line graphs that are gradually decreasing in manner. Each line graphs are placed one below the other. Neither of them is intersecting with the other. They are listed as below

Rapid physical growth characterizes a child's first year of life. Consider the following infants and classify each child's rate of growth as either healthy or a possible sign of malnutrition. At birth, Jasmine weighed 7 lb, 9 oz and her length was 20 inches. By her first birthday, her weight was 26 lb, and her length was 30 inches. At birth,

a student earned a score of 940 on a national achievement test. the mean test score was 850 with a standard deviation of 100. what proportion of students had a lower score than the student with the score than the student with the score of 940? (Assume that the test scores are normally distributed.)

A fair die is rolled four four times. What is the probability of obtaining a 5 comma 6 comma 5 comma and 5 comma 5,6,5,and5, in thatorder?

A retail chain would like to test if a difference exists between the variability of customer satisfaction scores from two locations. The following data represents satisfaction scores from a random sample of customers from these locations on a scale of 1-20. Location 1 12 14 20 18 15 17 16 Location 2 18 19 17 18 16 20 What is the degrees of freedom

A florist determines the probabilities for the number of flower arrangements they deliver each day. x 19 20 21 22 23 P ( x ) 0.23 0.21 0.35 0.11 0.10 Find the mean, variance, and standard deviation of the distribution rounded to 4 decimal places. Mean = Variance = Standard Deviation = Approximately how many arrangements should the florist expect

Around the car park, cylindrical concrete bollards are going to be placed. Volume of a cylinder: V = area of the base x height V =?r 2 h ?= 3.14 \f
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What is the probability that the owner of the Hotel Bar does not allow the two minors to enter,if he randomly checks the identity cards of 5 students from among 9 students of which only 5 are of eligible age.

A gray square with an area of 36 cm' and a black square with an area of 25 cm? are superimposed, as shown beside. What is the perimeter of the overlapping region, represented by the white quadrilateral, which has a vertex on the side of the gray Square (A) 15 4 points 11. A gray square with an area of 36 cm? and a black square with an area of 25
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First Ratings of Cola Tasted First Ratings of Cola Tasted Second Post Taste Post Fresh Post Quality Cola (A=Pepsi) ID Pre Taste Pre Fresh Pre Quality 4 A 2 7 4 7 3 4 A A 5 A 2 2 2 2 2 8 5 6 A 9 5 6 A 10 6 6 A 11 3 2 A 6 UI NO 12 6 5 A 14 5 A 16 4 3 A 23 2 A 4 4 24 A 25 W N U W N B NO A A U W W ONUUICON 31 A A 1 W U U UI 35 5 A 36 4 3 A 37 A 5 4 A
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Differentiate probability samping from non probability sampling techniques

Vocabulario I: La moda y la ropa Follow the steps to complete this activity. Paso 1. Select the part of the body that goes best with each item of clothing

.A pharmaceutical company is testing a new cold medicine to determine if the drug has side affects.To test the drug, 8 patients are given the drug and 9 patients are given a placebo (sugar pill).The change in blood pressure after taking the pill was as follows: Given drug: 3 4 5 1 -2 3 5 6 Given placebo: 1 -1 2 7 2 3 0 3 4 Test to determine if the

Graph h(x) = 38(0.51)*. What is the constant percent rate of change of f(x) with respect to x? Does the graph show growth or decay? 49% growth O 49% decay 51% growth O 51% decay

correct mistake of this. Hello, TODD M. Hope you are doing well; please can you order a Disconnect for ( POR LN 12-STANDARD KNAPP CASE PACKER). - NEW MENNEKES ME 30MS1A-M2 NON-FUSIBLE 30A 600V-AC DISCONNECT SWITCH D235221. Thank you

If you are traveling in your car at an average rate of r miles per hour for thours, then thedistance, d, inmiles, that you travel is described by the formula d=rt,thatis, distance equals rate times time. (a) Solve the formula for t. (b) Use the formula in part(a) to find the time that you travel if you cover a distance of 175 1 7 5 miles at an

Heights (in centimeters) and weights (in kilograms) of7 7supermodels are given below. Height (x)178 174 174 172 166 176 168 Weight (y)58 54 55 53 47 56 50 (Note: Compute values to three decimal places of accuracy.) The regression equation is y= ? Regardless of what answer you actually got, suppose your regression equation were y=-80 + 0.8???? x= ?

A random sample of size n = 10 is taken from a large population. Let be the unknown population mean. A test is planned of H 0 : = 12 vs. H A : 12 using = 0.1. A QQ plot indicates it is reasonable to assume a normal population. From the sample, x = 14.2 and s = 4.88. (I suggest doing this problem with a calculator and/or table as practice for

Determine key information from the graph of a parabola. In a fireworks display, a shell is launched vertically upward from a stand 4 feet off the ground. The equation for the height (in feet) of the shell after t seconds from being launched is h left parenthesis t right parenthesis equals short dash 16 t squared plus 192 t plus 4. The shell is

can someone help me please ourses / Probability and Statistics CP Fall 2020 (Harward) / Unit 3 / Lesson 3.3: Measures of Variability Measures of Variance Lab: Warm Up (Continued) Select the HISTOGRAM tab. A histogram shows how many data points fall into each time interval. You can change the class width using the number of bins slider. For now,
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Which of the following reflects a scorecard rule for LEED Credit Point Allocation? Calculator Maximum of 100 base points Minimum of seven points per credit category Maximum of 55 credits within each rating system Minimum of five prerequisites within each rating system

There arefourwires which need to be attached to a circuit board. A robotic device will attach the wires. The wires can be attached in any order, and the production manager wishes to determine which order would be fastest for the robot to use.Use the multiplication rule of counting to determine the number of possible sequences of assembly that must

Problem 13. Let B be the solid region in R3, lying under the plane a + z = 1 and over the region in the xy-plane bounded by a + y = 1, the x-axis and the y-axis. a. Sketch the region B. b. Calculate the volume of B
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Determine the absolute maximum and minimum values of the function f(x,y) 2x^3 + y^4 on the disk R={(x,y):x^2 + y^2 < or = 9}

MODULE 4: Lesson 2 ASSIGNMENT Lesson 2: Applications of Radians The Module 4: Lesson 2 Assignment is worth 4 marks. The value of each question is stated in the left hand margin. 1. Determine one positive and one negative coterminal angle for the following angles. (1 mark) a. 430 (1 mark) b. 2. Write a general form expression for all of the angles
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The following graph shows the four surfaces fluxes of radiation at the Barnwell site on November 9-12, 1983. Changes in each of the fluxes during the four-day period follow from the radiation laws, the normal diurnal cycle, and changes in atmospheric composition and cloudiness. How. 11 14.) Based on the amounts of incoming shortwave radiation,
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13.Based on the Unemployment Claims above, what is the probability of choosing an unemployment claim from the Machinery industry? 14.Based on the Unemployment Claims above, what is the probability of choosing an unemployment claim from the Apparel and Textile Mills industry? 15.What is the average unemployment claim for 2020? 16.What is the total
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Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with z arbitrary x+y-3z= -35 2x -y+7z=93 x - 2y +3z =16 Select the correct choice below and, if necessary, fill in the answer box to complete your choice O A. There is one solution. The solution set is {( . . } (Simplify
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I want to investigate if aging has an effect on weight. Which method of statistical analysis would be appropriate to use to test the hypothesis? Give an example.

For each of the pairs of quantities, identify if they are directly, inversely, or not proportional. Complete parts (a) through (j). (f) density of crowd in room : crowd size directly proportional inversely proportional not proportional

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