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Mathematics Questions and Answers March 28, 2021

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If {u, v, w} is a linearly independent set in a vector space V, then there exists c1, C2 ( IR such that u = cu + Czw. (a) True (b) False
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Let straight f subscript straight n colon straight real numbers rightwards arrow straight real numbers, straight f subscript straight n open parentheses straight x close parentheses equals fraction numerator open parentheses negative 1 close parentheses to the power of straight n minus 1 end exponent over denominator open parentheses 2 straight n

In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Upload dataHeartRate_Exercise. These data are based on 45 randomly chosen High school students. SETUP: Is it

The serum cholesterol levels (in ) of17 individuals are 228,220,249,257,189,201,254,235,240,206,208,259,215,237,230,232,247 Send data to Excel Find25 th and80 th percentilesfor these cholesterol levels. (If necessary, consult alist of formulas.) (a)The25 th percentile:mg dL (b)The80 th percentile:mg dL

Please help me with the following question. Thanks in advance. I need to explain it is sentences too. In a distribution that follows the Normal Curve.How likely is it that an observation is higher or lower than one standard deviation from the mean?Explain why. Consider the area that is greater on both the positive and negative sides of the normal

In the Rocky Mountain region, there are endangered species like jumping mice and burrowing owls that are protected by the EPA. If you want to build a roadway to facilitate traffic congestions in Denver, part of your plan will include using Simpson's diversity index to calculate the number of organisms in two communities. If EPA warned you that

what is an equation in standard form of the lines passing through the points (6,3) and (-2,7).

content area top Part 1 Factor completely. 7 r Superscript 4 Baseline plus 14 r squared plus 7 Question content area bottom Part 1 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. 7 r Superscript 4 Baseline plus 14 r squared plus 7equals enter your response here (Factor completely.) B. The

Kuya conducted a taste-test study of tofu.He gathered 20 of his friends and took them to various tofu dinners on three Sundays.Firstly, a Chinese tofu dinner.He then asked his friends to rate how much they enjoyed the tofu (from 1 to 10 with 1 = hate it, and 10 = love it).The following Sunday, they went for a Thai tofu dinner and collected their

give me the annual total of 20 mm 15 mm 40 mm 30 mm 10 mm 50 mm 60 mm 70 mm 80 mm 90 mm 80 mm 60 mm mm

could you solve this 4. Question: Twelve runners are asked to run a 10-kilometer race on each of two consecutive weeks. In one of the races, the runners wear one brand of shoe and in the other a different brand. The brand of shoe they wear in which race is determined at random. All runners are timed and are asked to run their best in each race.
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In a class of 50 students, a teacher surveyed the students and collected the following data: 24 play basketball, 27 play volleyball, and 29 play badminton. 18 play both basketball and volleyball. 16 play both badminton and volleyball. 14 play both basketball and badminton. 10 play all three sports. Based on the Venn diagram of the situation, how

On 8 October 2011, an open letter (A public letter to the top management of Gucci from former employees who resigned collectively was spread on the internet. In the letter, they alleged that the employees caught an occupational disease, that there was one miscarriage attributable to excessive working hours and there was no compensation for these

Incorrect Question 4 0 / 1 pts When we compute a differential for a function f(x), it means that we are trying to find df, which is equivalent to f' (x) dx. What is the differential dif of f(x) = x3 -x? O df = dr O df = (x3 - x)da O df = (3:2 - 1) de O df = 3x2 dx O none of the above Incorrect Question 5 0 / 1 pts What is the differential df of
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Needs to be solved (0) Let A, B, C he sets. Use standard set theory identities to prove A\\(BC') = (A\\B) U(A\\C). [WC] ((1) Let A, B, C be truth sets for the predicates P(a:), Q(a:) and R($) respectively. Express the truth set of the predicate -I(P(:I:) /\\ Q(:I:)) /\\ R(ac) in terms of A, B and C. [4pt]
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1. The graph of the first derivative f' of a function f is shown below. Use this to answer parts (a)-(d) 3 5 (a) On what intervals is f increasing? Explain. (b) At what values of a does f have a local maximum or minimum? Explain. (c) On what intervals is f concave upward or concave downward? Ex- plain. (d) What are the x-coordinates of the
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1. [K] (4) Suppose that f is a differentiable function with derivative f'(x) = (x -3)(x+ 1)(x + 5). Determine the intervals of x for which the function of f is increasing and decreasing. 2. [C] (2) Explain why a positive value for f'(x) means the graph f (x) is increasing. 3. [T] (4) For f(x) = 2x3 - 3x2 - 12x + 21, find where f'(x) = 0, and the
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Jermy deposited $2,500 in a certificate of deposit paying 4.49% compounded daily for 3 years. How much will he end up with in his account?

Mezzanine debt (10 years) : NB : mezzanine debt should not exceed 25 % of the deal total consideration Bonds + warrants Repayment in fine (year 10) Cash interest (paid yearly) 7.0% Combined potential IRR (including warrants impact) for mezzanine lenders in the base case should be at least 10.0 %
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1.Statistical analysis of the 16 decades of hurricane data reveals a 95% Confidence Interval of +/-1.10652102. Add and subtract this number from the population mean to determine the 95% CI value, which is the value 2 standard deviation's above and below the mean. 2.Suppose 10 hurricanes were to occur. Based on the 95% CI, what is the probability

Math 119 Lab: Contingency tables and Probability Name(s): The Titanic Disaster The Titanic was the most technologically advanced liner in the world for the year 1912. At 11:40 P.M. on Sunday, April 14 of that year, the Titanic struck an iceberg and sank in less than three hours. A sequence of mistakes and tragic coincidences resulted in disaster.
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Laura has 1 dependent children and earns a gross yearly salary of $77,582. She will also make the following tax-deductible purchases: . Student loan interest: $2,788 . Educational expenses: $3,305 When she file her taxes, what will her tax refund be? Use the following information: Standard deduction for heads of households: $20,800 2023 Head of
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USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 40 male consumers was $135.67, and the average expenditure in a sample survey of 30 female consumers was $68.64. Based on past surveys, the standard deviation for

Hello, Can someone show.me how to answer these questions please.

how do you do #16? log base 17 289 = 22 I tried to put in 17^2 = 2 and 17^2 = 289 but it didn't work 16. Convert the following equations from logarithmic to exponential form, or visa versa. (No calc) a. log , 289 = 2 b. 6-3 = 216
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I need help with this problem, can you please show me step by step? 18. (20 points) Suppose we want to explore if there is significant evidence of difference among Category A, B, and C in the proportion of Level 1 for certain characteristic. A B C Total Level 1 50 90 225 365 Level 2 150 210 275 635 Total 200 300 500 1000 At significant level 0.05,
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35)Rank in order from the best rate of return to the least rate of return for the following: semi-annually, monthly, yearly, quarterly 36) Name at least 3 services that banks provide. Use the table below to answer the following question: Account 1 Account 2 Account 3 il i month transaction Monthly Fee $3.00 $2.50 $4.50 37) Mark is looking into
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Assume that p represents a true statement, q a true statement, and r a false statement, determine the truth value of the following statement. ( ~ p v - q ) -+ r Choose the correct answer below. O A. The truth value of (~p V ~q) - r is false because (~p V ~q) is false and r is false. O B. The truth value of (~p V ~q) - r is true because (~p V ~q)
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Problem 6: (10 points) True or False. Explain. a) If A is a matrix with a basis of column space having 2 vectors and a basis of the nullspace having 3 vectors, then A has 5 rows. b) The range of the linear transformation T : R? R* is spanned by two linearly independent vectors. Then there is a nonzero vector v in R? such that Tv = 0. ) A, B and C
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14. A loan of $17,000 is made at 4.99% simple discount interest for 180 days. a. What are the proceeds? b. What is the effective rate of the loan (APY)
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Let s represent the following statement. s: One thinks hard. Express the statement One does not think hard symbolically

Applications of Confidence Intervals In your initial post, describe a situation when you estimated an average by giving a range for its possible values. For example, you may have said that you are pretty sure that it takes an average of 23-25 minutes to drive to work each morning. In your initial post, describe a situation when you estimated an

Design and analysis of experiments 1. An HMO accountant has determined that the mean monthly expenditures on pre- scription medications varies among three groups of patients (those aged 25-44 (group 1)), 45-64 (group 2), and 65+ (group 3), based on the F-test for the Completely Randomized Design. The model fit is: Mij = Hitlij, Eij mild N (0, 02
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Using the equation A=P(1+r/n)^nt to determine the overall cost of a $9,500 loan if the interest is compounded monthly with an interest rate of 10.58 for 36 months

A Quiz: 06.04 Skill Builder: Label X * Course Hero springfieldpublicschools.instructure.com/courses/1715684/quizzes/7578551/take G A 2023 School Year: Q4-Q4 LA... For each of the following triangles, label the hypotenuse, the adjacent and the opposite. Home Announcements Modules People D Question 1 1 pts Grades Google Drive Discovery Education
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In a scale model of a boat, 1 inch represents 4 feet. Scale 1 in : 4 ft Answer the following (a) In the scale model, the length of the boat is 5 inches. What is the length of the real boat? feet (b) The height of the real boat is 28 feet. What is the height of the boat in the scale model? inches
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You are ordering linoleum for a kitchen with dimensions 17 feet by 13 feet.When you get to the store, you find the linoleum is only sold in square yards.How many square yards should you order? Round your answer to the nearest tenth of a yard.Do not include units with your answer.

You are helping a friend rearrange his living room. What does he tell you to put in the following places? Complete his statements by writing ce, cet, cette, or ces followed by the appropriate noun, using the cue in parentheses. EXEMPLE Mets (Put) ces DVD (DVDs) gauche du lecteur DVD sur le meuble multimdia (entertainment center). 1. Mets enter

A random sample of175individuals working in a large city indicated that61 are dissatisfied with their working conditions. Based upon this, compute a99% confidence interval for theproportion of all individuals in this city who are dissatisfied with their working conditions. Carry your intermediate computations to at least three decimal places.

Joe earns $50 an hour at work. He could watch a 2 hour movie at the movie theater for $20. He decides to watch the movie. What his total cost for watching the movie

)Researchers plan to examine individuals infected with SARS-CoV-2, the virus that causes COVID-19. They plan to enroll 200 participants, randomizing half to the intervention group (i.e., wearing masks) and half to the control group (i.e., not wearing masks). Under the null hypothesis, they 4Participants were allowed to cough if they felt the urge

Two types of chemical solutions, X and Y, were tested for their pH (degree of acidity of the solution). Analysis of 6 samples of X showed a mean pH of 6.72 with a standard deviation of 0.024. Analysis of 5 samples of Y showed a mean pH of 6.49 with a standard deviation of 0.032. Using a 0.05 significance level, determine whether the two types of

how would i calculate the f1 for each of the overtone frequencies given y intercept and slope

A group of experimenters has 40 mosquitoes in a large container and needs to assign 10 to each of the four groups labeled A, B, C, and D for an experiment. They can capture the mosquitoes one at a time when the mosquitoes enter a side chamber in the container that is baited with water. Which of the following methods is most likely to result in

Age 2018 2019 2020 0-5 76 638 81 6-19 18 17 29 20-59 27 28 45 260 93 85 220 D) What about the approach in C means some of the P values are not independent? (5 points)
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Statist Pre X Practic Sample S STAT_1 9 Lab 01 5 1000s Sample W Charle Setting New Tab + anitoba.ca/pluginfile.php/128846/mod_resource/content/1/Practice%20Midterms.pdf The next three questions (7 to 9) refer to the following: The house values (in thousands of dollars) for samples of homes from three Calgary neighbourhoods are recorded. Some
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2) Plan an activity to help a 8 year old to understand Identifying and understanding the properties of the selected 3D shapes

The test statistic of z=1.60 is obtained when testing the claim that p=2/3. a. Using a significance level of =0.01, find the criticalvalue(s). b. Should we reject H0 or should we fail to reject H0?

Can someone please answer this :) Quadratics: Factored Form Use Desmos Graphing Calculator to graph the given equation Factored Form: y = a(x - p) (x - q) Find the x intercepts of the given quadratic equation: y = -3x2- 4x + 6 The x intercepts are and Now write the factored form of the quadratic function: Students, draw anywhere on this mida
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Please help with this question Exotic Fumishings Ltd. has a line of credit secured by the equity in the business. The limit on the line on March 1. The line of credit agreement requires a regular payment of $250.00 on the principal plus closing on the last day of each month. Overdraft interest is 15% p.a. The line of credit interest is varia
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Determine if the relation is a function with the Vertical Line Test. 10) A2GEN Name Yasin Fadlalla ID: 1 2-1 Functions and Relations Pt 2 Date Mod Graph each function. 1) f (x ) = x-1 2 ) f (x ) = x+6 Af( x ) Af( x ) or 3 ) f (x ) =-x2 - 10x-25 4 ) f ( x ) = - 2x Af( x ) Af ( x ) x
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I need to fill in the blanks 28 = 0 nswer Attempt 2 out of 2 The equation has no solutions A value of x that makes the equation false is which when substituted into the equation and simplified makes the equation turn into Another value of x that makes the equation false is which when substituted into the equation and simplified makes the equation
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The heights of the 228 men who filled out Survey 1 last semester follow the normal curve fairly closely with an average of about 70.5" and a SD of about 2 " . First convert 74.1 " to a z score. Now use the normal table to find the percent of men over 74.1 hat percentile is 74.1 inches? (This is the same as finding the percent of men who are under

3. Convert your recursive definition into iteration notation. Explain how you made your conversion
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Items are inspected for flaws by two quality inspectors. If a flaw is present, it will be detected by the first inspector with probability 0.9, and by the second inspector with probability 0.7. Assume the inspectors function independently. Assume that both inspectors inspect every item and that if an item has no flaw, then neither inspector will

Students at a high school are asked to evaluate their experience in the class at the end of each school year.The courses are evaluated on a 1-4 scale - with 4 being the best experience possible.In the History Department, the courses typically are evaluated at 10% 1's, 15% 2's, 34% 3's, and 41% 4's. Mr. Goodman sets a goal to outscore these

Is this a good example of degrees of freedom? df= (N1-2) + (N2-2) + (N2-2) df= (15-2) + (15-2) = 13 +13 = 26 where df is the degree of freedom, and N1 is is sample size for the sample one and N2 is the sample size for this sample two. Can you help me to explain if this is a good example of degree of freedom? Thank you

With a height of 63 in, Vincent was the shortest president of a particular club in the past century. The club presidents of the past century have a mean height of 67.9 in and a standard deviation of 1.7 in. a. What is the positive difference between Vincent's height and themean? b. How many standard deviations is that[the difference found in

HELPP HOMEWORK NOT for TUTOR: dont submit if you dont do full THEM OR BAD RATE And in full explanation show all explanation Find the second derivative of y = tan(x^2). Find the volume of the solid that results from rotating the region bounded by y = x^2 and y = 4 about the x-axis. Determine the equation of the tangent line to the graph of y =

A predatory species of sh is introduced into a lake. The number of these sh after I years is given by N = 60 - 23. (a) What is the initial size of the sh population? The initial size of the sh population is a sh. (b) How long does it take the population to double in size? To triple in size? Round your answers to three decimal places, if required.
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Distance: Speed Limit Voyager 1 speeds Ultimate Speed Limit ~384,000 km (65 mph = 0.03 km/s) i (17.1 km/s) (Speed of Light: 300,000 km/s) (240,000 miles) hours seconds seconds HISTORY VERIFY hp
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Sketch each function. Be sure to state the domain, intercepts, vertical asymptote(s), horizontal or oblique asymptote and show all testing. Label all key information and include extra points where necessary. 1) ()= 2 2 1/ 2 +1 2) () = 2 23/ 2 3 +3 2 910 (Test Point Required) 3) () = 2 2 +6/+1 () = 2 3 1/ 3 +3 2 3 Test Point Required

QUESTION 8 Listed below are time intervals(min) between eruptions of a geyser. Assume that the"recent" times are within the past fewyears, the"past" times are from around 20 yearsago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations

Solve the following questions. Answer them with a step by step solution. And if possible also give the latex code for the same. Question 1 Use the limit definition of the derivative to exactly evaluate the given two derivative: \f\fPicture J a Eye level X
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Chapter 6, Section 6.5, Question 016 Your answer is incorrect. Try again. Your company needs $500, 000 in two years' time for renovations and can earn 6% interest on investments. (a) What is the present value of the renovations? Present value = 942329.7 dollars. (b) If your company deposits money continuously at a constant rate throughout the
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After setting a random seed in R, the following code was run: > sample(1:100,5)[1:3] A possible return of this code is: Group of answer choices a) 73, 15, 0 b) 64, 51, 32 c) 46, 21, 30, 63, 2 d) 46, 21, 30, 63, 101

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Suppose that for a typical FedEx package delivery, the cost of the shipment is a function of the weight of the package measured in ounces. You want to try to predict the cost of a typical shipment given package dimensions. If 10 packages in a city are sampled and the regression output is given below, what can we conclude about the slope of weight?

L f:o an(r b)" converges conditionally converges absolutely converges absolutely converges absolutely oo n Consider the power series Zn: a,, (113 b) , where b is an integer. The convergence or divergence of the series for various value of & is shown in the table above. What is the interval of convergence for the power series? O [_1= 2] [_1: 3) O
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Discrete Structures. write handwriting step answer. thank you \f
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graph the rational function by applying transformations to the graph of y = 1/ x . f(x) = 1 /(x 2) h(x)= (-2x+1)/x (hint: divide)

Consider the demonstration problem 6.3 which uses a normal distribution to determine the probability associated withgenerating between 3.6 and 5 pounds of waste per year. What is the relationship between the x value (e.g3.6) and the z score?

A Relaxin receptor agonist drug (RRA01) for the acute heart failure treatment is developed by the Sunny Pharmaceutical Company. It is a publicly traded company. The reduction of cardiovascular death (mortality) was used as the end point (results of the research) for this investigation.The null hypothesis is "there is no difference in the

(D) Identify and explain the factors of production of a good or service
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Several archeology students are unprepared for a surprise true/false test with 25 questions, and all of their answers are guesses. Find the mean for the number of correct answers for such students. (Round answer to one decimal place.) = = Find the standard deviation for the number of correct answers for such students. (Round answer to two decimal

12. What is the measure of
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QUESTION 25/40 Unscramble the following letters to form a word whose meaning is \"confident.\" What is the last letter of this word? SADEURS er/1726258127034x504438516852985660 60% Halfway There! QUESTION 24/40 A meter is 3.37 inches more than a yard. A foot has 12 inches.. Swimmer A swims 100 meters. Swimmer B swims 100 yards. Approximately how
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How might the results of this study be used? Describe how the knowledge gained could be applied. Suggest additional research that could be pursued to supplement these findings. (6 points)
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To the right is a graph of f(x)=72x. How can you use this graph to describe the relationship between the rate of return and the number of years it would take the investment to double?

Counting and Probability Understanding likelihood V There are two boxes containing only black and orange pens. Box A has 7 orange pens and 13 black pens. Box B has 4 orange pens and 1 black pen. A pen is randomly chosen from each box. List these events from least likely to most likely. Event 1: choosing an orange pen from Box A. Event 2: choosing
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a) Calculate the mean, mode, median, range, sample variance, and sample standard deviation for these exam grades. b) Create a stem

2. 12 .5 B 0.5- -2 -1 0 1 2 A -0/5- -1 Which of the following correctly describes the nature of each curve above as either f, j', or jo? Of : Curve B, f : Curve A, P : Curve C Of : Curve A, f : Curve B, / : Curve C O 1 : Curve C, f : Curve A, F : Curve B None of these choices
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AMDM Final Exam Name __________________________________ Period _________________________________ : Solving Triangles using Law of Sines and Law of Cosines Law of Sines: Law of Cosines: 1. What two situations can you use law of Sines to solve a triangle

If a drop of water is examined under a microscope, the number x of a specific type of bacteria present has been found to have a Poisson probability distribution. Suppose the maximum permissible count per water specimen for this type of bacteria iseleven. If the mean count for your water supply issixand you test a single specimen, is it likely that

10. An ellipse has vertices (0,5) and (0,5) and a minor axis of length 8. Part I: In what direction is this ellipse oriented? (2 points) Part II: What are the coordinates of the center of this ellipse? (2 points) Part III: What are the values of a and b for this ellipse? (2 points) Part IV: Write the equation of this ellipse. (4 points)
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To draw line segment #1, we must consider the inequality (-1A + 2B

4 10 Find the term independent of x in the expansion of ( U
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Some scientists claim that there are 7 colors in the rainbow: red, orange, yellow, green, blue, indigo, and violet. 7 families had a great idea to dress their children up in colored shirts to recreate a rainbow. Each family has exactly two children. Since this is such a monumental event, a family is very much hoping to have a child included in the

3. A student records the time (in minutes) it takes to commute to school for 14 days. Those results are: 22, 14, 14, 14, 14, 17, 19, 5, 17, 19, 12, 22, 7, and 23 0 - 14 EX - 219 EX2 = 3799 E(X - X)2 -373.2143 a. (2) Report the 5-number summary in the form of a box-plot, and discuss any skewness that you might observe. b. (2) Calculate the sample
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a. Make scatterplot of the above data using age as the explanatory variable. Describe the relationship you see based on the scatterplot b. determine the linear regression equation for the data c. determine the correlation coefficient for the data d. Interpret the slope of the equation in context of the problem e. Interpret the y-intercept of the
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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 metres) of

5. [More about iterative methods, 5+5+5pt] For x, y E RN, define (x, y) A = a Ay, 1x/A = V(x, x) A where A E RNXN is spd. (a) Show that the above map (., .) A : R x RN - R defines an inner product on RN (b) Consider the linear system Aa* = b with spd A and an approximate solution k E R with residual rk = b - Ack and error ek = a* - Xk. Show that
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Solve the triangle, if possible. b = 9.7 in., c= 17.2 in., A=59.2090 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. (Round side lengths to the nearest tenth and angle measures to the nearest thousandth as needed.) O A. There is only one possible solution for the triangle. The measurements for
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I need help asap. 18 Question 18 6 pts Let f : Z -+ Z be the function f (@) = mod 5. Let g : Z -+ Z be the function g (y) = yz a. What is (f o g) (4)? b. Is (fog) (x) = (go f) (x) for all integers a? Answer yes or no: Justify briefly
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Two point charges each carrying a charge of +5.8 E6 C are located 5.8 meters away from each other. A. How strong is the electrostatic force between the two points (k = 9.0 E9 Nm^2/C^2)? B. Is this force a repulsive force or an attractive force? Remember to identify all data (givens and unknowns), list equations used, show all your work, and

A laser rangefinder is locked on a comet approaching Earth.The distance g(x), in kilometers, of the comet after x days, for x in the interval 0 to 36 days, is given by g(x)=350,000csc(/36x) b. Evaluate g(6) .g(6)= What is the minimum distance between the comet and Earth? When does this occur? To which constant in the equation does this correspond?

2:52 X SKM C4582210281414... 4 BSBXCM501 Student assessment Booklet V1.0 Errorl Reference source not found. Page 26 Activity 4 Conduct and Record Two(2) Mentoring Sessions Mentor Others to Assist Them in Achieving Communication Goals For this activity, you are required to mentor others, to assist them in achieving their communication goals. Your
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.......... El 7 of 8 ID: MST.SD.DSM.04.0020 [1 point] Your parents are always complaining that you do not do enough housework. They say that you should be helping them out because you are only a student and you have a lot more spare time than them. The number of hours per week that your parents work has a mean of 48.09 hours and a standard
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I need help Question 2: The following question was on a test: 4 f( x) = Verify that x- 2 and g( x) = - 2 are inverse functions. Student Parker answered the question as follows: 4 4 16 f ( 8 ( x) ) = 4 +2- 2 X x 4 g(f ( x ) ) =- + 2-4. 2 +2-x- 2+2=1 x - 2 Since /( 8( x) ) # 8(/ (x) ) , the functions are not inverses. Explain Parker's mistake(s) and
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