Mathematics Questions and Answers December 05, 2019

Is it necessary to study Statistics in your field of expertise (electrical engineering)?Cite at least 3 application in your field of specialization.

Suppose that Y1, Y2, Y3 denote a random (independent) sample of size n = 3 from a distribu- tion with parameter 1 defined by the following probability density function: Ay1 -1, 0 0 f (y) = 0, elsewhere. The observed values of the sample are: y1 = 0.1, y2 = 0.2 and y3 = 0.3. (a) Find the method of moments estimate of 1. (b) Find the maximum

Classical measurement error in the dependent variable does not cause bias in the OLS estimator, although it does increase the variance of the OLE estimator

If a treatment has a very small effect, what is a likely outcome for a hypothesis test evaluating the treatment?._________________________ What are one advantage and one disadvantage of using a related samples t-test?

Consider the following sample from a normal population 21.01 20.28 19.18 20.83 19.80 19.31 19.37 20.62 20.26 17.65 19.91 18.88 20.30 20.77 18.88 21.29 19.21 20.06 20.59 20.12 Suppose I want to test H 0 = 19.6 against H a 19.6. Please make the following correct choices: a) reject H 0 at = 0.07. b) not reject H 0 at = 0.10. c) reject H 0 at = 0.05.

Suppose that in a certain town, 60% of the voters favor a new ballpark. If 100 randomly selected voters are questioned, what is the mean of the sampling distribution of the proportion? Select one: a. 46% b. 60% c. 0.60 d. 0.46

The medical department at a local government agency has compiled test results for sick individuals who have been tested for the flu. They have found that not all people who test positive for the flu actually have the flu, and some people who test negative for the flu actually have the flu. The following tree diagram shows the conditional relative

Chart Title 600,000 y = 96.729x + 56351 500,000 400,000 300,000 200,000 100,000 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500

Reference table: No Total Number of MDRSA Prevalence Exposure category 95%CI MDRSA children Ratio* IHO Parent 45 153 198 (exposed) CR Parent 16 186 202 1.0* (non-exposed) Total 61 339 400 Now, suppose that 15% of the parents who were originally classified as having no exposure were actually seasonal employees at an IHO and should have been

please answer ASAPP!! thank you The roundtrip flight from Edmonton to Toronto covers a total distance of 5400km in 7.6 hours. The speed from Edmonton to Toronto was 95km/h faster than the speed from Toronto to Edmonton. Determine the speed of the plane from Toronto to Edmonton? Solve Algebraically

Jeffreys' prior for the (success) probability p in a geometric distribution (or FS distribution) is: f(p) p 1 (1 p) 1/2 which is an improper distribution (but can be viewed as a "Beta(0, 1/2) distribution"). Show that the above is Jeffreys' prior for the geometric distribution.

1. Use the c-N definition of the limit of a sequence to show the following: 2n - 1 2n - 1 (i) lim COIN (ii) lim = 0 n-+00 3n + 2 n-+0 3n2 + 2 2. Let a be a real number. Prove that if an = a for all n E N, then lim an = a 7-+00 3. Prove that if lim an = L, for some real number L, then 7-+00 lim |an ) = |L| 1-+00 ( Hint: Use the reverse triangle

As part of an annual fundraiser to help raise money for diabetes research, Mary joined a bikeathon. The track she biked on was 1920 yd long. Mary biked 38.5 laps. Her sponsors agreed to donate an amount of money for each mile she biked. How many miles did she bike? First fill in the blanks on the left side of the equation using three of the ratios

Need Assistance How long will it take money to double if it is invested at (A) 8% compounded continuously? (B) 10% compounded continuously? (A) At 8% compounded continuously, the investment doubles in years (Round to one decimal place as needed.) (B) At 10% compounded continuously, the investment doubles in years (Round to one decimal place as

Given that the point (3, - 2) is on the graph of an equation that is symmetric with respect to the y-axis, what other point is on the graph? The point is also on the graph of the equation. (Type an ordered pair.)

Previous Problem Problem List Next Problem (1 point) Simplify the following power functions to the form y = kx? , where k and p are some numbers. (a) y = (46)/ Vx is y = kxP, where k= and p= (b) y = (10(x)4 is y = kxP , where k= and p= (c) y = (4)-2 is y = kxP , where k= and p= Note: You can earn partial credit on this problem. Preview My Answers

Both Tom and Jane flip a fair coin twice. Let T be the number of heads Tom got, and J be the number of heads Jane got. Define Z as the sum of the heads both Tom and Jane got. (a)Develop the joint probability distribution between T and Z. (b)Are T and Z independent of each other? Why?

5 Create queries to answer the following questions: note: you should retrieve data by designing a query to return a table of records corresponding to the subsequent inquiries List all students with their advisers and advisors' department List all the students with their advisers of a specific department (i.e.. students with advisers who belong to

HW Score: Question 9, 2.2.9 Homework: Assignment 2 points Part 2 of 3 Points: 0 of 1 Save lim f(x) =5, must f be defined at x = 1? If it is, must f(1) = 5? Can anything be concluded about the values of f at x = 1? Explain. x - 1 . . . st f be defined at x = 1? Yes 2 s defined at x = 1, must f(1) = 5? A. Yes, because if it is defined at x = 1, the

Use Microsoft Excel to analyse the data and to display the trends in a scatter graphs and charts for Adelaide. use Microsoft Excel skills to produce visual presentations of the data. Summarise what the tables and charts are showing.

Please solve and explain An airplane ascends such that its gain h in altitude is proportional to the square root of the change x in horizontal distance traveled. If h = 396 m for x = 324 m and Vy is constant at 370 m/s, find the velocity at this point. It is given that the airplane's gain h in altitude is proportional to the square root of the

z-score and Normal Distribution Exercise (30 pts.) 1. (4 pts.) For a population with = 60 and = 12, find the z-score corresponding to each of the following X values: 66: 78: 57: 48: 2. (3 pts.) For a population with = 48 and = 8, find the X value that corresponds to each of the following z-scores: A. 0.50 B. 2.00 Nos. 3-11 are worth 2 pts. each:

For the follow questions please record your answers to at least three decimal places. The scores of students on the SAT college entrance examinations at a certain high so deviation 0' = 27.4. hooi had a normal distribution with mean p, = 542.2 and standard (a) What is the probability that a single student randomly chosen from all those taking the

have data of Frequency and relative frequency. do I need relative frequency percentage ? If so, why relative frequency necessary and need it?

5. Nick has invested $1 in each of two products. He expects that each successful investment 1will yield :1 prot of $8013. while if an investment is unsuccessful he will lose his money. A successful outcome in each investment is independent of the other investment being successful. If he estimates that the probability of success in each of the two

Q3)Use the more than method to Construct Cumulative Frequency Polygon (Ogive) from the following requency distribution: Class Limits 20-30 30-40 40-50 50-60 60-60 Frequency 5 30 40 15 10

2. Consider the Bayesian model y 101, 02 ~ N ( 0 1 + 02, 1), di viid N(0, 1), i = 1, 2. Suppose y = 1 is observed. Then, find the marginal posterior distributions of 01 and 42

A function g(r) is a probability density function if fig(x)dr - 1. Determine if the function 0 if r

A function g(x) is a probability density function if 1. Determine if the function g(x) is a probability density function if x O 0 5 e fix if O

0.012.620.05There is insufficient evidence to warrant rejection of the manager's claim that production is not really out of control.0.00440.0072? = 0.03? = 0.05p 0.03There is sufficient evidence to warrant rejection of the manager's claim that production is not really out of control. Identify the null hypothesis, alternative hypothesis, test

2 3 Count of ORIGIN Column Labels 4 Row Labels AA AS 86 DL F9 G4 HA NK OO UA WN Grand Total 5 ABQ 13 13 6 ANC 62 7 ATL 92 92 B AUS 31 31 you only really need the row for PDX (for me row 42). (1) What is the point estimate for the difference between the fraction of flights out of PDX run by Southwest (WN) and the flights out of PDX run by Alaska

please answer it shortly and quickly 6. A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 of them attended the midnight showing. The Type I error is to conclude that the percent of

19 18 17 16 15 14 13 12 01 > 24 1 If 40% for all people have TV-Plasma and 5 people are selected at random, what is the probability that all of them don't have TV- Plasma? 0.0778 078 28"C Lille Alle ENG W home 5 P R

helpppppppppp g(0) Use the Substitution Formula. "(g(x)) - g'(x) dx= f(u) du where g(x) = u. to evaluate the following integral. q(a) 36 6 X( Inx) Determine a change of variables from x to u. Choose the correct answer below Q A. U= ( In x) OR. u= Inx O C. U=- x( In x) OD. UEX O E. (=x( In x) OF. U=x( In x) Write the integral in terms of u. dix 6

What is the spread, shape, and center Frequency 120 100 140 20 40 60 80 O [ 1,450 , 1,580 ] ( 1,580, 1,710 ] ( 1,710, 1,840 ] ( 1,840 , 1,970 ] ( 1,970, 2,100 ] ( 2,100, 2,230 ] Square Footage (2,230 , 2,360 ] ( 2,360, 2,490 ] ( 2,490 , 2,620 ] ( 2,620, 2,750 ] (2,750, 2,880 ] ( 2,880 , 3,010 ] ( 3,010 , 3,140 ]

For a certain group of states, it was observed that 80% of the Democratic governors were succeeded by Democrats and 20% by Republicans. Also, 10% of the Republican governors were succeeded by Democrats and 90% by Republicans. In the long run, what percentage of the governors will be Republicans? (Round to the nearest percent.)

Question 10 3.5 pts Consider the RF front-end of a communication system consisting of two cascaded amplifiers (A, and A2). Suppose G1 and G2 denote power gains (in dB) of the amplifiers A1 and A2 respectively and F1 and F2 represent the associated noise factors. There are three receivers (X, Y, Z) that use in their RF stages, the aforesaid type of

random variable question - please show all work PROBLEM (a) (b) (0} (d) (f) (g) . Stars are painted on a coke cap with probability 0.05, independently from In I 0 one cap to the next. A truck contains 10,200 cokes, organized into 1700 packs of 6. Find the probability that the total number of stars on the truck is more than 525. Find the

8. Let XExp Showthat a. EIN n n 1. b. EY xnI , n 2 1.

1. [2 marks) The diagram below illustrates episodes of tuberculosis in a population of 10. Tuberculosis (commonly known as TB] is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria. TB typically attacks the lungs but can also affect other parts of the body. It is spread through the air when people who

A Capability Study conducted during a pilot run of 100 units indicated the Cox upper value to be 1.8 while the Co: lower value was 0.90. The customer requires a Co minimum value of 1.25. What action should be taken? A Reduce Variability B Renegotiate the customer specification C 100% inspect until new equipment Is available D Center the process

Evaluate the integral by interpreting it in terms of areas. 6 [x - 3| dx

Evala by interpreting it

Problem 4. (25 points, 5 parts) Erin and Tabish are operations engineers for iStow Co._. a warehousing solutions company. iS'tow uses Kiva Robots to bring shelves to associates who then stow items in the shelves, before the robots whisk them away. Erin and Tabish have designed a new process flow that they hope improves upon the old system. They

MATH0019 Homework 2 Due: October 28, 2022 Basic 1. Consider polar coordinates in the ry-plane given by the equations r = vx2 +y?, 0 = tan-'(y/x), which can be solved for r, y to give I = roos0, y = rsin0. (a) Find the partial derivatives ar dy ay' dy ar ' (b) If f(x, y) is a differentiable function of r and y, find Of /Or and Of /20. (c) Show that

Proof In Exercises 117 and 118, use the result of Exercise 116 to find the area of the sector. 117. 118. 12 ft 10 m 15 ftFinding Arc Length In Exercises 93-96, find the length of the arc on a circle of radius r intercepted by a central angle 0. ol ous bus sore sdi Shoujonu Radius I smob Central Angle 0 enoil 93. 14 inches ordi dgeng of 180 94. 9

Case Study # 1 Last year Ben&Tom decided to enter the yogurt market, and it began cautiously by producing, distributing, and marketing a single flavor - a blueberry-flavored yogurt that it calls Mirtillo. The company's initial venture into the yogurt market has been very successful; sales of Mirtillo are higher than expected, and consumers'

We looked at two different ways of calculating interest this week. Simple and Compound Interest. From the viewpoint of a consumer, how do you see the difference between the two? Use concrete examples to get your point across and illustrate examples of when simple interest is more beneficial than compound interest, and vice versa.

Find the area of the surface generated by revolving the curve about the y-axis. y =16-x, OSx54 ( a) 10253-1 12 b) 653 -1 6 c) 10253 -1 6 O d) 653 -1 12 O e) 10253 - 3

A Travel company uses a record locator number (RUN) for each client's trip. The RUN has 5 letters followed by a number (e.g., KEZLF2). How many different RLNs can be created using capital letters (A-Z) and numbers (0-9)? Number of RLNs

Find the slope of the tangent line to the graph of the given function at the given value of x. 1/2 ,3123 y= 7X +X X= 9 The slope of the tangent line to the graph is (Simplify your answer.)

0.082 (d.). No. more.than six of them dislike their mother-in-law. 0.070 Enter a number. Need Help? Read It Viewing Saved Work Revert to Last Response Submit Answer 8. [-/8.33 Points] DETAILS BBBASICSTAT8ACC 6.2.023.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE Suppose approximately 75% of all marketing personnel are extroverts, whereas about

Details: The data provided in the file lead_concentrations.xsix (available on Blackboard) was taken from "Lead Results from Tap Water Sampling in Flint, MI during the Flint Water Crisis" (FlintWaterStudy.org, 2015). A total of 271 tests from different locations around Flint, Michigan are included in this file. Each column represents the lead

Show complete solution and Explanation Subject: Integral Calculus III. PROGRESS CHECK Now, try to evaluate the following integrals! 1. (3x ] - 2x 2 + x4 + 16x )dx 2. S ( x - -) dx 3. (x-2x*+1 dx dx 4. J 7x-1)2 5. [(x' + 1)(x3 + 3x) 'dx 6. Jsec 3x dx 7. S; sin 2x (1-co52x)3 dx 8. [x' v5x4 + 20 dx 9. S; sin 2x dx (1-cos 2x)^3 10. J sin(sin x) cos x

Let x 1 ,...,x n be a random sample from some population with x 2 = 34334, x = 3446, and n= 359. Suppose I want to test the hypothesis H 0 : = 9.5 against H a : > 9.5 at a significance level of = 0.05. Then what is the z-statistic (pick the best value) and the conclusion, ie, reject or not reject H 0 . Question 8 options: a) 26.2869 b) 1.0001 c)

\fD Question 1 3 pts Suppose you have a random sample of size 200 from a population with unknown mean, and you wish to perform a t-test of Hg : p. = 1 versus Hazpyl. Which of the following departures from assumption will cause t.test to give the most incorrect answer. Q skewness similar to that of exponential 0 light tails in the population 0 one

USE R studio to complete the following questions: ANOVA A psychologist wants to determine whether having a job interferes with student academic performance. She measures academic performance as a grade point average (GPA) on a 4.0 scale, where higher scores indicate better performance. She selects a sample of 30 students - 10 who did not work, 10

symmetrical Question 15 (1 point) Given the following box plot: + 2 10 12 13 Which quarter has the smallest spread of data? third quarter with a spread of 2

Question 3 {2 points] A dart was randomly thrown on the following composite gure. Determine the probability,r that it will land in the while triangle with base 16 and height 13. Paragraph v B I L1 v A] l g V II" C or I: + ( lu- n Add a File Record Audio Record Video Question 4 {2 points] AE-colour spinner was spun BUD times. The number of times it

Question 3 4 Points Review the sample data below. A researcher collected information about the temperature of different cities. What type of data is "Temperature"? City ID Temperature (F) City_01 20 City_02 15 City_03 50 City_04 36 City_05 28 City_06 0 City_07 32A Ordinal B Nominal C Ratio D Interval

(1 point) Find all the values of x such that the given series would converge. (-1)"(11)"x" A=1 (vn + 3) The series is convergent from X = left end included (Y,N): to X = right end included(Y,N)

In a simple linear regression model where we regress "Shark deaths" over "number of powerboats", the correlation coefficient is 0.94. Based on this, % of variation in Shark deaths is explained by the regression model. State your answer as a percentage to 2 decimal places. (Hint: You are not required to state the unit i.e.% as it is already

Hello! Can you help me to solve question 1 and 2 ? Thank you File | C:/Users/User/Downloads/$1 1131%20 + | [ Page view | A Read aloud [T) Add text \\ Draw ~ Highlight Erase | E ST1131 Tutorial 8 1. A social scientist studies adult South Africans living in townships on the outskirts of Cape Town, to investigate educational attainment in the black

Refrigerator prices are affected by characteristics such as whether or not the refrigerator is on sale, whether or not it is listed as a Sub-Zero brand, the number of doors (one door or two doors), and the placement of the freezer compartment (top, side, or bottom). The table below shows the regression output from a regression model using the

The answers are in the 3rd picture Can you also explain how you get the multiplicities, I really don't understand that part Page 1 of 5 For each function: a) List all possible rational zeros. b) Use Descartes Rule of signs to find how many possible positive real zeros, how many negative real zeros, and how many imaginary zeros there are. c) Use

7. Let X have a normal distribution with = 10 and standard deviation o= 2. Transform X to the standard normal form Z and match the following probability statements: a) P(X>14) 1) P(Z 2) a) is matched to (2.5 pts) b) is matched to (2.5 pts) c) is matched to (2.5 pts)

View Assessm X Q Chapter 2 Fla: X Becoming a P X Introduction f X VA 1.5 Analyzing X Course Hero X Q Chapter 1 Fla X G infinity keybo x + X C https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=28572877&tags=autosave#.. G to 2. [1/6 Points] DETAILS PREVIOUS ANSWERS LARPCALC11 1.5.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER

Please help me A survey of 200 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take notes. The result of the survey is that 84 of the 200 students responded "yes." An approximate 98% confidence interval is (0.339, 0.501). Complete parts a through d below. a) How would the confidence

what is the definition of statistical power and how can i explain it?

please help, show all the steps QUESTION 2 [12 Marks] The number of accidents per day on the Golden high way follows a Poisson distribution with parameter 2.25. (a) Calculate the mean and standard deviation of the number of accidents per day. (5) (b) On how many days in December would you expect the number of accidents to be within one standard

At least one of the answers above is NOT correct. Complete the identity using the triangle method (a) cos(tan_l(z)) Warm1(2)) fr he inverse functions are obtained by restricting tan to the domain 1r/2

Obesity Obesity is defined as a body mass index (BMI) of 30 kg/mor more. A 99% confidence interval for the percentage of U.S. men aged 40 to 49 who were obese was found to be 30.0% to 32.0%. What was the sample size? Round the intermediate calculations to four decimal places and round up your final answer to the next whole number. n= X 5

For #4-6, show your work. Here are examples of how to show your work: 1. If you are using a graphing calculator: binompdf (10, 0.25, 4) 2. If you are using the binomial table or formula: binomial, n = 10, p = 0.25, x = 4 Round probability values to 4 decimal places where applicable. (Please Show Work) 4. Binomial: Twenty-five percent of the

Please provide full solution \fQUESTION 2 [6 marks] By using partial fraction expansion method, determine the input sequence x (n) for: X(Z) = 1-45-1 1435-1425-27 (z| >2

Please show the work. An armored car must pick up receipts at a shopping mall and at a jewelry store and deliver them to a bank For security purposes. the driver will vary the route that the car takes each day. Use the map to determine how many ifferent direct routes the driver can take from the shopping mall to the bank? Click the icon to view a

pts) Your company plans to invest in a particular project. There is a 25% chance that you will lose $38,000, a 40% chance that you will break even, and a 35% chance that you will make $45,000. Based solely on this information, should you invest in the project? Hint... you should check the expected profit

Good day, Could you please assist me with this 2.2. Suppose that on average 6 births occur at Hospital A on a given day. 600:25 2.2.1. What is the probability that on a given day hospital A will register no birth? (2) 0.00 2.1.2. Calculate the probability that Hospital A will register at least 2 births in half a day. (4) [11]

Assume that females have pulse rates that are normally distributed with a mean of p = 75.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. . . . a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 78 beats per minute. The probability is

1. Find the actual time and approximate time between the dates Indicated: August 21 to December 8 April 5 to Dec 3 March 3, 2008 to June 5 2012 June 5, 2001 to May 15, 2005 Job 22, 2000 10 July 28, 20095 10 HIGHS . . 2. A loan has a maturity value of P 6, 750. It bears interest at 6% and has a term of 1 year. How much was borrowed? 3. Joan has to

c.instructure.com 20 > Assignments > Test #2 Chapter 3 Test #2 Chapter 3 Due Sunday by 11:59pm Points 24 Submitting an external tool Available after O ents Test #2 Chapter 3 Score: 0/24 0/24 answered Question 7

A 20-liter leaky bucket is attached to a uniform chain that weighs 0.65 kg per meter. The liquid leaks out at a uniform rate and the liquid weighs 1.1 kg per liter. If the bucket is full of water when 25 meters of chain is out and half-full when no chain is out, calculate the work done in winding the chain. O 6033 N-m 455 N-m 7025 N-m 620 N-m

What price do farmers get for their strawberry crops? In the third week of April, a random sample of 43 farms gave a sample mean of$66.00per 10 pounds of strawberries. Assume thatis known to be $1.58per 10 pounds. Find a 90% confidence interval for the population mean price (per 10 pounds) that farmers get for their strawberry crop (in dollars).

J 1 (a) A comparison of standard table mortality rat-l with our actual mor- tality rates for ages 40 to 49 inclusive is to be performed. The data for the comparison is given below. Agez: Expuure (Em) Standard Table Mortality Rate q; 40 9 800 The ofce performing this comparison of actual deaths with expected deaths has underlying mortality rates

PROBLEM DESCRIPTION: What's behind rising fish prices in Malaysia? KUALA LUMPUR: Fish prices in Malaysia are going up amid supply problems caused by unfavourable weather and labour shortage. Fisheries Development Authority of Malaysia (LKIM) chairman Syed Abu Hussin Hafiz Syed Abu Fasal told CNA that there has been a decrease of about 15 per cent

A conservation organization releases 35 Florida panthers into a game preserve. After 3 years, there are 170 panthers in the preserve. The Florida preserve has a carrying capacity of 560 panthers. (a) Write a logistic equation that models the population of panthers in the preserve. (Round your k to four decimal places. Use t for the time In years.)

Statistics and Probability A manufacturing company is analyzing its accident record. The accidents fall into two categories: Minordealt with by first aider: Average cost k50 Majorhospital required. Average cost k1,000 The company has 1,000 employees, of which 180 are office staff and the rest work in the factory. The analysis shows that 10% of

How to use Euler's method to find y-values of the solution for the given values of x and ?? x, if the curve of the solution passes through the given point. Check the results against known values by solving the differential equation exactly, step by step? dy dx - 2x - 9; x # 0 to x #1 Ax 0 2 (92) Using Euler's method, complete the following table X

In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst possible life and 10 represents the best possible life. The mean response was 5.4 with a standard deviation of 2.6. (a) What response represents the 86th percentile? (b) What response represents the

2. A random sample of size 30 from a normal population yields x = 55 and s =4. The lower bound of a 95 percent confidence interval is (Round off upto 2 decimal places). Sol

Could someone please help me with this problem Show that 2" = 3x for some x E (0, 1)

Show that 2x 3c for some e (0, 1) .

Our reading in Lane (2016), Chapter 1, compares and contrasts some aspects of both descriptive and inferential statistics. Our DeVore (2012) text also highlights these issues in the first chapter. Consider the different impacts that these two aspects of statistics will have on your role as an engineer. Discuss how these two branches of statistics

A04.1 Appointment durations The duration of appointments at a doctor's surgery can be assumed to be Normally distributed with expectation 10 minutes and standard deviation 3 minutes. (a) Express the probability of a randomly selected appointment taking less than 15 min- utes in terms of the standard Normal edf d. (b) Assuming independent

Hi, im having difficulty in understanding the following concept. can someone help me with a step by step explaination please. I can find the roots = z = -4, 2+2 sqrt 3i, 2 - 2 sqrt 3i. but then i cant understand the rest Find all roots of the equation: z 3 + 6 4 = 0 . Present your answer in the exact form (don't use calculators). Show the roots in

Consider the right triangle shown below. Suppose the hypotenuse of this right triangle is r = 12.5 cm long a. Suppose that sin(0) = 0.644. i. y is how many times as large as r? times as large Preview ii. What is the value of y? Preview b. Suppose that cos(@) = 0.765. 1. I is how many times as large as r? times as large Preview ii. What is the

Preparing the data (20%) XX--Move "Model" to column1. One way is to use the dplyr library from the tidyverse package. Zz Let the model names be your rownames (not to be used as data, but will be the name of each row). See James textbook, page 55 for some guidance. XX Ensure that the data is complete before doing the analysis. Look for "NA"

Hello, I need help with the following problem, it is part of a series of different exercises, here I attach the laboratory manual, the chapter corresponding to this problem goes from page 36 to 41, but the question itself is on page 41. We are using "Statdisk Online" to solve the problems, I really don't understand what this problem consists of,

MCV 4U Unit 6 Test Lines and Planes Date_ Name: x = 4 -s+t 5 . Find a vector perpendicular to the plane n = ) y = 1+ s -t z =1+s+t a) [1, -3, -4] b) [5, 5, 0] c) [2, 1, 1] d) none of these 6. Which is a correct direction vector for the 2-space line: Px - Qy - R = 0 a) [P, Q] b) [P, - Q] c) [Q, P] d) none of these 7 . Determine the point that lies

Consider the function f(x) = x* +3x' -5x a. Find the coordinates of the y-intercept of this function [1 mark] b. Find the coordinates of the x-intercept(s) of this function [2 marks] c. Find the coordinates of all minima and maxima [3 marks] d. What are the coordinates of the GLOBAL minimum? [1 mark] e. Are there any vertical or horizontal

WRITE ON THE TOP OF THE PAGE : MARC GABRIEL HIZOLE Reminder: SOLUTIONS AND/OR EXPLANATIONS TO YOUR ANSWERS ARE REQUIRED. FOLLOW INSTRUCTIONS DURING EXAM Q1 Let the universal set U be the set of natural numbers (or the set of positive integers). And we define sets A and B as follows: A= { 2, 4, 6, 8, 10, .. .} = {the set of positive even intergers}

Descriptive Statistics N Skewness Kurtosis Statistic Statistic Std. Error Statistic Std. Error quiz1 105 -.729 .236 072 467 gpa 105 -.232 236 -.735 .467 total 105 -.793 .236 .885 .467 final 105 -.376 236 560 467 Valid N (listwise) 105Correlations quiz1 gpa total final quiz1 Pearson Correlation .129 721 236 Sig. (2-tailed) 190 000 015 N 105 105 105

Question 14 The annual average population growth rate in the Philippines from 2015-2020 is 1.59%. Assuming that the average population growth rate will remain constant at 1.59% and given that the current population of the Philippines is 111,229,189 as of August 2021. determine the year when the Philippines' population will reach 150.000.0D0. **

Please help

Find the following limit. (You have 2 attempts.) limf(x) Submit