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Mathematics Questions and Answers November 04, 2021

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Jill has a swimming pool in her backyard. It is shaped like a rectangle and measures approximately 16.3 feet wide and 26.2 feet long. It is an average of 5 feet deep. During a few hot weeks during the summer, some water evaporates from the pool, and Jill needs to add 8 inches of water to the depth of the pool, using her garden hose. Although her
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A die is rolled, and a coin is tossed.(a) Use the Fundamental Principle of Counting to determine how many different outcomes are possible. (b) Construct a tree diagram, then list all possible outcomes below.

3.[8] A company is considering an organizational change by adopting the use of self-managed work teams. To assess the attitudes of employees of the company toward this change, a sample of 400 employees is selected and asked whether they favor the institution of self-managed work teams in the organization. Three responses were permitted: favor,

In a Rankine cycle, steam at 6.89 MPa, 516 C enters the turbine with an initial velocity of 30.48 m/s and leaves at 20.68 kPa with a velocity of 91.44 m/s. Compute the thermal efficiency of the cycle. Assume work of the pump to be wp = 6.993 kJ/kg. (Hint: Draw and label the Rankine Cycle for this system)

Question 13On May 27, you received your bank statement showing a balance of $1,011.18. Your checkbook shows a balance of $1,024.34. Outstanding checks are $225.50 and $388.10. The account earned $88.51. Deposits in transit amount to $705.27, and there is a service charge of $10.00. Calculate the reconciled balance. a. $1,102.85 b. $1,453.18 c.

In a study to determine the average price of homes for sale in your city, which of the following would be the BEST SAMPLE? A-all of the homes currently listed by the top realtor in the city B-every 10th home listed for sale in your city on craigslist C-all of the homes for sale in your neighborhood D-several randomly selected homes for sale in

#7. Hello, I am looking for assistance regarding this question. Please help me better understand. There are two answers needed (Bank A and Bank B) Please round to nearest cent as needed (Example: $235.42 Dorothy Laymon is considering Mo bank card offers that are the same in all respects except for the following. Bank A charges no annual fee and
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The image below shows two dilated figures with lines AB and A?B? drawn. If the larger figure was dilated using a scale factor of 3, what relationship do lines AB and A?B? have? \f
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Please check the link below to view my question. http://prntscr.com/f5q6hd 2. What is the surface area of a cylinder that has a volume of 785.4 in 3 and a radius of 5 in? 471.2 in 2 10 in 2 150 in 2 4712.3 in 2

Solve this differential equation to find an expression for P(t). and What is the limit of this expression? In a previous exercise we formulated a model for learning in the form of the differential equation = k M P dt ( ) where P(t) measures the performance of someone learning a skill alter a training time t, M is the maximum level of performance,
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The file USmacrodata.xlsx contains U.S. quarterly GNP, Inflation rates, and Unemployment rates. Use this file to perform the following exercises:" a. Develop a regression to predict quarterly GNP growth from the last four quarters of growth. Check for non-normality of residuals, heteroscedasticity, autocorrelation, and multicollinearity. b.
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Fill in each box below with an integer or a reduced fraction (a)log16 2=1/4 can be written in the form A^b=C where (A)=___________ B=____________ C=____________ (b)log2( 1_ )= -5 can be written in the form D^E=F where 32 D=___________ E=_______________ F=_____________

4w+5x-3y+3z=-12 w+x+y+z=-10 3w+x-y-z=-8 find the solution set using Gaussian elimination with back-substition. Express the solution set as {(w, x, y, z)}.

Question 12Isabel lost 165.71 pounds over 27.4 months. What was her average weight loss per month to the nearest hundredth pound?

5 le22 P h "'' '7 n ExamP rove t at If {V11 -, Vk} C R are all mutually orthogonal vectors (Le. every ' ,--> .---7' vec/lfggal/IZ'INEIE set Is orthogonal to every other vector in the set), then {v1, ..., vk} must be . - .. , 2 linearly independent. 'Lr "Vll 70 2 . WE Jo Vtita/tmtuvpeo. :7tl=t;:- Liam. i ; ya We >O. ' ' ' " ---3 .2 . l,

1. Please evaluate and explain your answer using a number line: (-2) + (-5) = Did you change direction or go in the same direction? Was your answer on the positive ("+") or negative ("-") side of 0? (please see section 1.4 for further review) 2. Algebra is a language of efficiency. (-2) + (-5) should be simplified to -2 -5 (saving time and money).

What is the missing justification in the proof.. A, B, C or D? Please. \f\f
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A polishing machine requires 1 hours to make a unit of Product A, and 4 hours to make a unit of Product B. The polishing machine operated for 200 hours producing a total of 80 units. How many hours were used to manufacture units of Product A?

Suppose that $19,256 is invested at an interest rate of 5.1% per year, compounded continuously. a) Find the exponential function that describes the amount in the account after time t, in years. b) What is the balance after 1 year? 2 years? 5 years? 10 years? c) What is the doubling time? a) The exponential growth function is P(t) = (Type
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Question 17Divide the fractions and reduce to lowest terms: 6 1/8 divide 1 3/4=?

How to derive the moment generation function for y=Az+b, where z has a multivariate normal distribution? Let Z be a random vector of length n that has a M VN (OMIH) distribution. Let y 2 AZ + b. Derive y's moment generating function. What is y's distribution
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2017/4/28 Section 6.3 (Part B) [74 points] WebAssign Section 6.3 (Part B) [74 points] (Homework) Current Score : - / 74 Huizhi Liu MA 114, section 601, Spring 2017 Instructor: Lavon Page Due : Sunday, April 30 2017 02:47 PM EDT 1. -/9 points Scenario: Kate keeps some of her money invested in technology and some invested in industrial stocks. At

The t statistic for a test of 0 :=45 H0:=45 :45 HA:45 based on n = 6 observations has the value t = -1.61. (a) What are the degrees of freedom for this statistic? (b) Using the appropriate table in your formula packet, bound the p-value as closely as possible: < p-value <

Statistics for Decielen tl'telttng (100) "'llllr' ttltl'" "fifth" "mm M 't "mw" "M'lllllll'l" T""ttttltltltltlltlt" ' Mwourtttlr'lytlllwrvttm" " "wwi" I ' umm: ir hk Wall" " t ' 'um - "qumruuuruu "nu.""yul'fim'. "Mum"..- - li WT Of credits belng taken q can-yple Of fun "In ' v w u t " tw '- ,ecolle ' ' . < fi ' I "dw ge students are listed below.

Compute the present value of the payment. Assume that the compounding period is one month. $100 at the end of 3 months at 1.5% per month. $1195.62 at the end of 1 year at 18% per year. $644.52 at the end of 6 months at 14.4% annually. $5,000 at the end of 11 months at 12% annually.

Unit II Question 18 FV=PV(1+r)^t =1800(1+0.07)^2 =2060.82 There is no other solution for this. The formula gives same answer as before Unit III Question 17 H=186+6=192 D= 2192 384 ft Convert to miles 4 /55 Answer as a radical= 4 miles 55 Answer as decimal=0.26968 miles Convert to the required decimal places. Unit V Question 30 Administrators=5

A building in a city has a rectangular base. The length of the base measures 70 ft less than three times the width. The perimeter of this base is 860 ft. What are the dimensions of the base?

5) Could someone please answer this question and provide a correct explanation?Thanks! \f
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Please see attachment below. Solve. Type an integer or a simplified fraction. \f
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Simplify the expression (0.5x) 2 (x 4 y)(-3xy 2 )=

For each research project listed here, identify the variables and classify them in terms of level of measurement, and whether they are discrete or continuous. Is each variable independent or dependent? a. For a research project in a political science course, a student collected information for 50 nations. She used infant mortality rates as a

You are waiting at the end of a line at a checkout counter. There are 7 customers in front of you and the cashier has just begun serving the first one. The length of time it takes to serve a customer is an exponential random variable with a mean value of 1 minute, and each customer's service time is independent of the others. (a) What kind of

w is partly constant and partly varies inversely as the square of t. w=24, t=4 and when w=18, t=2. i. Determine the law connecting w and t ii. Find t when w=46

$4,750is invested at 2.1% APR compounded monthly. Use the compound interest formula to compute the balance in the account after 4years. $4,750is invested at 2.1% APR compounded continuously. Use the compound interest formula to compute the balance in the account after 4years. Round to the nearest cent.

The function f(x) defined by: \f
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I think the answer is -2, 3. Is this correct? If not, please show work. \f
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Provide statistics for only the dependent variables to include: Mean . Standard deviation . Frequency distribution . 95% confidence interval for the mean of the dependent variable (weekly) (weekly) Student-Athletes GPA Days of Practice Hours of Study 1 3.2 5 10 2 3.0 5 8.5 3 2.8 6 4.5 4 3.0 5 6 5 2.7 5 3 6 3.6 5 10 7 3.3 5 8 8 2.8 6 3 9 3.0 6 7.5

Describe which of the two given prices is the better deal and explain why. 1 You can buy shampoo in a 5-ounce bottle for 3.79 or in a 14-ounce bottle for $11.19 a. The 14-ounce bottle is the better deal because the cost per ounce is $ --- per ounce while the 5- ounce bottle is $ ---- per ounce OR b. The 5- ounce bottle is the better deal because

Can someone please help me with this math hw. Your help would be greatly appreciated

One positive number is 6 more than twice another. If their product is 1856, find the number

Math 012 Quiz 2 Professor: Name________________________________ Instructions: The quiz is worth 50 points. There are 10 problems, each worth 5 points. Your score on the quiz will be converted to a percentage and posted in your assignment folder with comments. This quiz is open book and open notes, and you may take as long as you like on it

Can someone please Divide this problem and Simplify your answer as much as possible? 4x + 20 / 35x + 25 Divide 2x + 10 / 7x + 5

EXAMPLE \f
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The owner of Nuts2U Snack Shack mixes cashews worth $ 5.75 5.75 a pound with peanuts worth $ 2.20 2.20 a pound to get ahalf-pound, mixed-nut bag worth $ 1.70 1.70 . How much of each kind of nut is included in the mixedbag?

2.6.4 Test (TS): Conic Sections Test Archis Chinmulgund Geometry Sem 2 (S3990682) Points possible: 50 Date: ____________ Answer the following questions using what you've learned from this unit. Write your answers in the space provided. Be sure to show all work. CIRCLES 1. Complete the following steps to write the equation of this circle. Part I:

Mike, Joe, and Bill are painting a fence. The painting can be finished if Mike and Joe work together for 4 hoursand Bill works alone for 2hours; or if Mike and Joe work together for 2 hours and Bill works alone for 5hours; or if Mike works alone for 6hours, Joe works alone for 2hours, and Bill works alone for 1 hour. How much time does it take for

hello could someone help me answer these two questions?? MATH 208 Midterm Examination March 2015 P e 2 of 2 -_____________ag____ [6+4] 3.. (A) A person borrows $3,600 and agrees to repay the loan in monthly installments over a period of 3 years. The agreement is to pay 1% of the unpaid balance each month for using the money and $100 each month to
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A consumer survey was conducted to examine patterns in ownership of laptop computers, cellular telephones, and DVD players. The following data were obtained: 311 people had laptop computers, 232 had cell phones, 263 had DVD players, 67 had all three, 64 had none, 98 had cell phones and DVD players, 55 had cell phones but no computers or DVD

In the pair of supply and demand equations below, x represents the quantity demanded in units of a thousand and p the unit price in dollars. p =42-4 x 2 and p = x 2 +10 x +27 Find the equilibrium quantity and price.

Perform a t-test on the data in the Excel. Based on the given hypotheses and significance level and provide your answers below. Ho: = 7.2 H A : < 7.2 = 0.05 Sample Mean = Standard Deviation = t= p= Decision = FTR Ho or Reject Ho Data here: 6.455161 7.54215 6.72904 8.353228 7.570674 6.079618 5.975513 6.022844 5.850433 6.801387 7.12656 4.78277

A company is installing a new machine that initially costs $800000, with a further outlay of $100000 at the end of years three and six for maintenance. The salvage value is $75000 at the end of 10 years. Expected returns are $125000 for each of the first three years and $1750000 for each of the remaining seven years. Should the company install the

Write a differential equation that is satisfied by y. Solve the differential equation. and part c.) as well One model for the spread of a rumor is that the rate of spread is proportional to the product of the fraction y of the population who have heard the rumor and the fraction who have not heard the rumor. (a) Write a differential equation that
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2 1. A salesperson's weekly paycheck is 15% less than a second salesperson's paycheccks, and the total of the paychecks is $1125. What do each of the paychecks equal? 2. A family has a monthly mortgage payment of $760, or 16% of their monthly income. What is the monthly income of the family? 3. In order to get an A in a course, you must average at

Working with polynomial functions and their graphs (Note comments in brackets [?] should be pondered you need not submit a response.) Introduction, working with a quadratic function: Consider the function f (x) = x 2 6x + 5 1. By inspection, we see this is a quadratic function (or 2nd degree polynomial function) [why?] and its graph is a parabola

The percent of persons (ages 5 and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of 9.848. Suppose we randomly pick a state. a. Define the random variable. X = _________________________________. b. Is X continuous or discrete? c. X ~ ________ d. = ________ e. = ________

Hello, Please help with questions 25-28 as soon as possible. MATH 115 Precalculus Fall, 2017, V3.4 25. From a point 65 feet from the base of a redwood tree, the angle of elevation to the top of the tree is 493. Find the height of the tree to the nearest tenth of a foot. Show work. (sketch is not to scale) 55 feet 26. For the triangle ABC, we are
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One thousand dollars is deposited in an account. At the end of 1 year, there is $1100 in the account. If the interest is compounded continuously, find the interest rate. Please show work!

Tyler borrows $200 from the bank to buy new uniforms for his baseball team. The annual simple interest rate is 6%. He obtains the loan for 9 months. Calculate the interest on the loan.

0 10 0 12 x y A(2,9) B(7,5) C(8,3) D(1,2) A coordinate system has a horizontal x-axis labeled from 0 to 10 in increments of 1 and a vertical y-axis labeled from 0 to 12 in increments of 1. A four-sided polygon has four labeled vertices as follows, listed here in clockwise order: A, (2, 9); B, (7, 5); C, (8, 3); D, (1, 2). Objective Function z

A fundamental principle of statistics is that: Group of answer choices Data vary. Patterns always exist. Data are needed to prove a claim. All research needs to use numbers. Data show cause and effect

Determine whether (2x-5) is a factor or each polynomial: a. f(x) = 2x3 - 5x2 - 2x + 5 b. g(x) = 3x3 + 2x2 - 3x - 2 c. h(x) = 2x4 - 7x3 - 13x2 + 63x - 45 d. f(x) = 6x4 + x3 - 7x2 - x + 1 2. Fully factor: f(x) = 3x3 + x2 - 22x - 24. 3. Fully factor: a. h(x) = x3 - 8 b. f(x) = 8x3 - 27 c. g(x) = 27x3 - 64

Perform the indicated matrix row operation and write the new matrix 3 1 | 4 1- 1/2 | 6 r1-r2

Write the following as a single variable to a single exponent: (g 5 g 8 ) 3

A body with mass 3 kg is attached to the end of a spring that can be stretched 20 cm by a force of 15 N. The body is set in motion with an initial velocity of 10 m/s to the left. (a) Find the position of the mass in the form x ( t ) = C cos(w0 t a). (wo is omega nought and "a" is alpha) (b) Find the amplitude, period, frequency, and time lag of

4 it fuel: of the following statements is true of linear programming"? Li. l'ypically, Put not always, if we are maximizing an Objective function. we often see constramts usmg = or 5. Typically, but not always, if we are minimizing an objective function, we often see constraints using = or 5. c. There should be more constraints than variables

8 C17 College Mathematics Directions: Answer each question in the handout and show all your work. Use Microsoft Equation Editor or a similar tool to help you insert mathematical equations and symbols in your response. For further assistance, download the Microsoft Equation Editor Information document. To show your work, clearly identify each step

Please solve the following equation and check the potential of answer: 7+ 6 x 5 1 = x

The first box on page 329 gives the formula for conditional probability for independent events .For example, if you were to draw a card, put it back in the deck and then draw another card, those 2 events would be independent because the first drawing has no bearing on the second draw. 1.PRACTICE:You spin the arrow on a spinner that has 5 separate
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Explain why the two figures below are similar. Use complete sentences and provide evidence to support your explanation. \f
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Can you help me to solve a linear programming problem? Maximize P= 4x+4y subject to x+3y smaller than or equal to 30, 2x + y smaller than or equal to 2, x, y greater than or equal to 0.

Match each graph with the corresponding equation in the chart. Give at least two reasons for each answer. Graph A Graph B Graph C Graph D Equation Matching Graph Reasons y 2sin 0.5 x y 3sin 2( x 90) 2 y 3sin( x 90) 1 y 2sin 2 x 1

1. The average wait time to get seated at a popular restaurant in the city on a Friday night is 8 minutes.Is the mean wait time less for men who wear a tie? Wait times for 13 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 8, 8, 6, 8, 6, 6, 7, 6, 5, 6, 8, 7, 9 What can be

Alex is constructing an inscribed square. Brittanie is constructing an inscribed equilateral triangle. In your own words, describe one difference between Alex's construction steps and Brittanie's construction steps

The super prize in a contest is $10 million. This prize will be paid out in equal yearly payments over the next 20 years. If the prize money is guaranteed by AAA bonds yielding 3% and is placed into an escrow account when the contest is announced 1 year before the first payment, how much do the contest sponsors have to deposit in the escrow

An actor invests some money at 9 %, and $35000 more than twice the amount at 10%. The total annual interest earned from the investment is $29020. How much did he invest at each amount? Use the six-step method.

neckpoint Mar 18 by 11:59pm Points 100 Submitting an external tool K J M 2016 StrongMind. Created using GeoGebra. If JK = 4x + 37, and LM = 5(x + 5), what is the value of x? O 16 O 12 0 8 O 14 Previous Course Chat
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Question 14You wish to make a deposit and have these bills: 11 ones, 4 fives, 4 tens, and 4 twenties. You also have 6 nickels, 12 dimes, and 15 quarters and checks for $72.50 and $65.25. You wish to receive $30 in cash. What will you enter on the NET DEPOSIT line? a. $294.00 b. $137.75 c. $264.00 d. $156.25

Lucy was just hired for her first job out of college.She is told that her starting salary will be $58,000 per year.She is also told that her salary will increase to $65,000 in 4 years.Assume that = the years worked and = Lucy's Salary in dollars. Using this information, find the following answers: 1) What is the rate of change of Lucy's salary?

Find all possible solutions to the following systems: 5x-2y=7, 2x-3y=4 If there are no solutions, or infinitely many solutions, briefly EXPLAIN how you know this is true.

Can someone please help me find the answer to this question? Thanks! \f
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The University of Sydney School of Mathematics and Statistics Vector Calculus Assignment MATH2061/2067: Vector Calculus Semester 1, 2017 This assignment is due by Friday 26 May 2017 at 4:00pm and is worth 5% of your assessment for Vector Calculus. Submit assignments using turnitin. Check that EVERY page of your assignment is legible and the

1.) Points (1,4) and (-7,8) are endpoints of the diameter of a circle. a) What is the exact length of the diameter? SIMPLIFY b) What is the center of the circle? c) What is the equation of the circle? 2.) Let f ( x )=5 x 26g ( x )= x4 a) Find the composite function ( f o g )( x ) and simplify b) Find ( f o g )(1 ) 3.) A projectile is launched from

Consider a one-dimensional compressional wave traveling in the x-direction in a thin plate where the central plane of the plate is in the x-y plain. It is reasonable to assume u(x)=u(x,t) and t(zz)=t(xz)=t(yz)=0. What is the wave speed for this compressional plate wave? (Isotropic Material) Fundamentals of Ultrasonic Nondestructive Evaluation: A

Evaluate the function at the indicated value of x. Round your result to three decimal places. Function Value g ( x ) = 8000 ( 2 x ) x = 0.5 g(0.5) = (answer)

1 1. 1.The exploration tour of statistics in Chapter 1 began in the year a. 2000 b. 1940 c. 1900 d. 1960 5 points QUESTION 2 1.The person in the Chapter 1 tour of statistics in who introduced analysis of variance was a. Karl Pearson b. Ronald Fisher c. Jacob Cohen d. Jerzy Neyman 5 points QUESTION 3 1.Albert Bandura promotes cognitive therapy. In

Q21 Can you look at this and show each step as to how you came up with the final solution.Thanks \f
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Find the function value. If the result is irrational, round your answer the nearest thousandth. Let f(x)=6^x. Find f(2)

The dollar value v t of a certain car model that is t years old is given by the following exponential function. = v t 25,900 0.95 t Find the initial value of the car and the value after 12 years. Round your answers to the nearest dollar as necessary.

I have two questions don't know how to solve and need helpThank you so much Questions are on the pictures. (a) Solve the recurrence relation an = 12 am 16 an_3 + 9 . 2'n+1 + 25m, n \\V \"co where a0 = 20, a1 = 31 and a2 = 62. (b) Write down the generating function of the sequence an in part (a) in a closed form. 2. Recall that the Fibonacci and
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Can someone help me with these two questions relating to the change in basis . I'm quite confused. Thank you in advance 1. (a) Find the transition matrix P\"; from the basis % to the standard basis 9:, where 83 = {(1, 2, 1), (0, 3, 2), (1, 0, 1)}, Q: :{(1,0,0), (0,1, 0), (0,0,1)}. (b) Compute Paar- (c) Use Pang to nd [(13% where :1: : (4,8,4). 2.
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What polynomial can be factored as (a+2)(a+4) Please help me to solve and simplify the answer

1)which of the six trigonometric functions are undefined when x=0? (sin, cosine,tangent,cosecant,secant,cotangent) 2)which of the six trigonometric functions are undefined when y=0? (sin, cosine,tangent,cosecant,secant,cotangent) 3) Use your calculator to find sin theta and cos theta if the point (9.37, 7.08) is on the terminal side of theta? 4)

Jayanta is raising money for thehomeless, and discovers each church group requires 2 hr of letter writing and 1 hr offollow-up calls, while each labor union needs 2 hr of letter writing and 3 hr of follow-up. She can raise $ 125 125 from each church group and $ 175 175 from each union. She has a maximum of 20 20 hours of letter writing and 16 16

Write the interval of real numbers in interval notation: The set of real numbers less than 6 Select one: a. (, 6] b.(, 6) c. (6,) d. [6,)

An investment allows for end-of year payments that grow by 3% per payment for 20 years, starting with $2000 at the end of the first year. If the payments earn 4% compounded annually, how much was invested at the beginning?

In excel, identify in the data the longest time customers are spending in each grocery store. is there a delay in the purchasing groceries. Solve and show the global F-test. Provide the global test for model fit (F test). Provide appropriate hypothesis testing on the regressors. What is the R2 coefficient? Provide the stepwise regression model.

The graph below illustrates the US unemployment rate from January 2016 to June 2019. Which forecasting model(s) appear to be the most suitable (no calculations required). (Unadj) Unemployment Rate 5.5 5 Percent or rate 4.5 4 3.5 3 Jan '17 Jul '17 Jan '18 Jul '18 Jan '19 LNU04000000 Click and drag in the plot area to zoom in. Hover over chart to
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Student Name: Math 4 Final Study Guide 1 . If f and g are two functions defined by f(x) = 3x + 2 and g(x) = x2+ 2, find g(f(x)). 2. The accompanying tables define functions f and g. What is (g . ()(4) x 2 3 4 5 f(x) 3 4 5 6 3 4 5 6 7 4 8 12 g(x) 6 10 If f(x) = 3x - 4 and g(x) = x2, find the value of f(5) - g(3). 3. Which is the correct piecewise
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Having a little trouble with half life radius problem? The half-life of radium is 1690 years. If 20 grams are present now, how much will be present in 300 years? |:| grams (Do not round until the nal answer. Then round to the nearest thousandth as needed.)
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Consider an nXp matrix A. Show that the number of linear independent rows is the same as the number of linearly independent columns. Hint: Write A = CR where C is a matrix of the linearly independent columns of A. Why can we write A like this? Then consider the CR product in the "row" interpretation of matrix multiplication.

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