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Mathematics Questions and Answers October 06, 2021

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a. Define a vector `x` that contains the possible values of `X`. Define a vector `shape` that gives the "shape values" (relative frequencies) of the values in `x`. Then, make a barplot to visualize the shape (have the horizontal axis be named "Different Items" and the vertical axis be named "Shape")

In order to avoid Type I error in your statistical studies, you should: A) Ensure your data has a small sample size B) Ensure your data has a large sample size to ensure power C) Use a confidence interval that is large or D) Use a confidence interval that is small

Problem 2 Let r be the compressive strength and y be the intrinsic permeability of various concrete mixes and cures. Summary quantities are n = 15, Elly,- = 572, 2:21:13}? = 23,530, Ell-1:110 = 43, 2;, 32,2 = 157.42, and 2;, my, = 1697.80. Assume that the two variables are related according to the simple linear regression model. (a) Calculate the
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1 2 3 4 E 6 7 8 G) 10 A biologist has a SSEQ-gram sample of a radioactive substance. Find the mass of the sample after six hours if it decreases according to a continuous exponential decay model, at a relative rate of 18% per hour. Do rot round any intermediate computations, and round your answer to the nearest tenth. xs
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In linearizing our population models in our algebraic test for stability, what is the justification for ignoring the higher powers of the perturbation terms? Group of answer choices We only perturb one population at a time, so one of the perturbation values is always zero. We need to do this to solve the equations. Since one of the populations

The following steps explain how to do aN Hypothesis Test. Step 1: Specify the Null Hypothesis. ... Step 2: Specify the Alternative Hypothesis. ... Step 3: Set the Significance Level Step 4: Calculate the Test Statistic and Corresponding P-Value. ... Step 5 If the P-Value < We reject the null hypothesis Let us assume that a dealer claims the gas

The university has decided to test three new kinds of lightbulbs. They have three identical rooms to use in the experiment. Bulb 1 has an average life-time of 1,470 hours and a variance of 156. Bulb 2 has an average lifetime of 1,400 hours and a variance of 81. Bulb 3 has an average lifetime of 1,350 hours and a standard deviation of 6 hours. Rank

1. In how many ways can we write 16 as the sum of three distinct positive integers? [Note: Assume that 1 + 11 + 4 is the same as 4 + 1 + 11.] 2. Two regular, fair dice are rolled. We add the two numbers on the top faces. How many different sums are possible? 3. A group of six strangers sat in a circle, and each one got acquainted only with the

Sukie interviewed 125 employees at her company and discovered that21 of them planned to take an extended vacation next year. What is the 95% confidence interval for this population proportion?Answer choices are rounded to the hundredths place. 0.10 to 0.23 0.11 to 0.21 0.11 to 0.16 0.16 to 0.17

A card is drawn at random from a standard deck. That card is not put back in the deck, and a second card is drawn at random from the remaining cards in the deck.Neither of the cards drawn so far are put back in the deck, and a third card is drawn at random from the remaining cards in the deck. What is the probability that all three of the cards

A final statistics exam had a mean of 70 and a variance of 25. If Bruce made an 80 on his exam, what is the z score of*

Need help with this question (1 point) A certain health maintenance organization (HMO) wishes to study why patients leave the HMO. A SRS of 429 patients was taken. Data was collected on whether a patient had filed a complaint and, if so, whether the complaint was medical or nonmedical in nature. After a year, a tally from these patients was
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3. Develop a new set of metrics that Webers can use to measure the performance of the new process. Use Figure 8.11 as a guide
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Use the given conditions to conduct an equation for the line inpoint-slope form and general form. Passing through (2,-1) and perpendicular to the line whose equation is x-3y-7= 0 The equation of the line inpoint-slope form is ? and the equation of the line in general form is?

detailed solution Assignment 1 1. Calculate the following: a) X" . Xb where X=3; a=1 and b=3 b ) x5 where X, =2, X,=8, X,=9 EL, X95 = X0.5+X9.5+x9.5 2. Solve for x (i.e. Restate as x= ...): 2424 =57eswy
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Graphf(x)=x sin x on [-4, 4] and verbalize how the graph varies from the graphs off(x)= + x Graphf(x)= sin x/x on the window [5, 5] and describe freely what the graph shows. You can use www.desmos.com/calculator to obtain the graphs.

Emily Company uses a periodic inventory system. At the end of the annual accounting period, December 31 of the current year, the accounting records provided the following information for product 2: Units Unit Cost Inventory, December 31, prior year 2, 820 $ 14 For the current year: Purchase, April 11 9 , 000 15 Purchase, June 1 7, 910 20 Sales
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Reproducible quantitative research means that the research is conducted and documented in such a way that anyone else with the same data and methods can repeat the process and arrive at the same results. - is this a good or bad thing

Water flows in a rectangular channel of width 8.8 ft at a depth equal to 1/4 the width. Determine the diameter of a circular channel that carries the same flowrate when it is half-full. Assume both channels have the same roughness coefficient and longitudinal slope. Question 2Answer a. 7.83 ft b. 8.80 ft c. 6.71 ft d. 9.63 ft

Out of all the people in the world how many are female?

help on how to solve & break down the following Given a standard normal distribution (SND) with = 60 and a = 5, what is the area under the curve between X 1 = 67and X 2 = 57? Given a standard normal distribution (SND) with = 70 and a = 10, what is the area under the curve between X 1 = 78 and X 2 = 62? Given a standard normal distribution (SND)

Suppose Y is the continuous random variable of the proportion of cavity magnetrons inside microwave ovens that are incorrectly installed. Then f(y) = { 2y, when 0 Find the probability that in a large sample of microwave ovens between 20% and 70% of the ovens would have cavity magnetrons incorrectly installed. Give the answer to 2 decimal places.
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1. What are the mean, median, mode, and range of the data set given the altitude of lakes in feet: (1 point) -12, -9, -14, -39, -49, -49, -18, and -43? Omean = -28.5, median = -29.1, mode = -49, range = 40 Omean =-29.1, median = -49, mode = -28.5, range = 41 Omean = -49. median =-29.1, mode =-28.5, range = 41 Omean = -29.1, median = -28.5, mode =
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Suppose you want to testH0: 30 versusH1: <30. Which of the followingpossible sample results based on a sample of size 36 gives thestrongest evidence to rejectH0in favor ofH1? X (bar)= 26, S = 9 X (bar)= 32, S = 2 X (bar) = 27, S = 4 X (bar)= 28, S = 6

The average teachers salary in Connecticut is $57,337. suppose that the distribution of salaries is normal with a standard deviation of $7500. Round intermediate z value calculations to two decimal places and the final answers to at least four decimal places. what is the probability that a randomly selected teacher makes less than $4700

In an outline for a speech, how are the main points typically formatted? Multiple choice question. With no initial numeral but with deep indentation With an initial Arabic numeral and deep indentation With an initial Roman numeral and no indentation With no initial numeral and no indentation

Please answer your assignments using your own words. Also make sure that if you are getting information from other sources, the source is properly cited or mentioned (APA format preferred), ensuring that you are not submitting work written by others. Uncited sources and AI generated assignments or submissions are considered plagiarism and may

brown home construction offers a selection of 2 floor plans, 4 roof types, 3 wall types. determine the number of possible homes available

For the quadratic equation ax2 + bx + c = 0, the discriminant is D = Incorrect: Your answer is incorrect. . The discriminant tells us how many real solutions a quadratic equation has. If D > 0, the equation has Correct: Your answer is correct. real solution(s). If D = 0, the equation has Correct: Your answer is correct. real solution(s). If D < 0,

mylab.pearson.com + 0 10 Tabs 88 C 1. The F.. G calculat.. P Unit 8 T... c Course... Matthe... o Mail - O. rex moo... i best art... 41284.5... C How To... Received Links MAT120_41_College Algebra_2021_22_TERM4 Prince Osuji 03/03/22 11:26 PM Shared with You Collected Links Bookmarks = Test: Unit 8 Test 9.1, 9.2, 9.3 Question 1 of 17 This test: 17
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Question 8 - of 21 Step 1 of 1 00:49:40 Plane A flies 2400 miles in the same amount of time it takes Plane B to fly 2560 miles. Plane B is flying 40 mph faster than Plane A. Find the amount of time it takes for each plane to travel their respective distances. Answer 4 Points Keypad Keyboard Shortcuts hours
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what is the difference between odds ratio and probability

A roll of gasket material is 9 in wide. What length is needed to obtain 22 sq ft of the material? (Careful: The numbers are not expressed in compatible units.) Question content area bottom Part 1 A length of enter your response here ft is needed to obtain 22 sq ft of gasket material. (Type an integer, proper fraction, or mixed number.)

6. Algebraically determine the solution to the logarithmic equation log,( +2) +log, (x -4) =2. (4 marks)
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Find the indicated derivative. StartFraction dy Over dx EndFraction for y equals x Superscript 10

The following is a forest plot showing the odds ratios for 34 randomized clinical trials that were conducted to study the effects of three cholesterol-lowering treatments: diet, drug, and surgery on mortality rates. Study Diet Study . Drug Surgery Average Average .001 .01 . 1 10 100 Odds Ratio
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I flip a coin five times, keeping track of the number of heads (successes).Let x be the number of heads. This is a binomial distribution, with n = 5 and p = 1/2. Round your probabilities to four decimal places. could you show me how to use the Excel to do that x = number of heads.

Determine the appropriate Algebra Property for the following: If 4(3x 1) = 5, then 12x 4 = 5. Reflexive Division Distributive Subtraction/Addition Transitive None of the above

I have been struggling with this problem -1/5 and y- intercept -6 when graphing the on the line. I understand about the run/rise but I keep messing up when plotting the points on the graph. Also can this be done on a T-83 calculator if so how? Thanks

A common practice at charitable events is to have a raffle drawing. Suppose 1000 tickets are sold for $2 apiece. Three tickets are drawn - third prize = $100, second prize = $200, and first prize = $300. What is the expected payoff per ticket for this raffle drawing? Online Participation Discussion Week 4 For week 4, the online participation topic
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The box plot represents the number of tickets sold for a school dance. A horizontal line labeled Number of Tickets sold that starts at 7, with tick marks every one unit up to 32. The graph is titled Tickets Sold for A Dance. The box extends from 15 to 21 on the number line. A line in the box is at 19. The lines outside the box end at 8 and 31.

Which types of information in The Binding of Isaac are perfect? Question 4 options: The cost of using a slot machine. Whether a door is locked or not. The amount of health you have left. The art style. The layout of a floor you have just entered. The damage value of player projectiles

your s 1. You will create the equation of a rational function. First you need to specify the following information about this rational function by filling in each [ ] with a value: DOMAIN: { xER, x#[ ], } Function has a HOLE at x = [' ] VERTICAL ASYMPTOTE: exactly one vertical asymptote at x = [-\\], HORIZONTAL ASYMPTOTE: exactly one horizontal
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Determine whether these functions are injective, surjective, bijective, neither, or not a function when they map Z to Z+. (a) f (x) = 3x + 1 when x 0 (b) f (x) = 2x + 1 when x 0 (c) f (x) = x2 + 1 (d) f (x) = 3x 1 when x 0 (e) f (x) = 3x + 2 when x < 0 (f) f (x) = |x|+ 1 (g) f (x) = 2x 1 when x 0 (h) f (x) = 3x + 2 when x < 0 (i) f (x) = 2x when x

5. When constructing a Confidence Interval for the population mean and both the sample standard deviation and the population standard deviation are known, which of the following should be used? a. normal distribution using the sample standard deviation b. normal distribution using the population standard deviation c. student-t distribution using

Consider generating a random variable having distribution function F(x) =1/2(x+x^2), 0

someone help me with math pleasee A group of 4 journalists is to be chosen to cover a murder trial. There are 5 television journalists, 3 radio journalists and 4 newspaper journalists available. Determine the number of groups that can be formed consisting of at least 3 television journalists
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What is the quotient of 8.215 0.5? 0.0164 0.1643 1.643 16.43

Problem 2. (12pts) Amy bakes 6 pies a day and each pie costs $2 to produce. She sells her pies for $7 each. Let X be the number of pies sold per day and the probability distribution of X is given below. N + P(X = x) 0.39 0.21 0.40 (a) What is the expected profit for a day? Assume that any leftover pies are given away. (b) The standard deviation of
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Cuando el asegurado (paciente) tiene dos cubiertas de seguro, se factura primero el plan primario y luego el plan secundario Un asegurado (paciente) puede estar cubierto por ms de un plan mdico, por lo que se deben observer las guas establecidas por la Industria de Seguros de Salud en la Coordinacin de Beneficios

2-5) Find the inverse of the matrix using Gaussian elimination 5 9 A =
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Would you be able to understand this? THis is what you said " \frac{(1000 , \mu M)(15 , \mu M)}{(5 , \mu M)(3500 , \mu M)} ] Simplify the expression: [ Q = \frac{15000 , \mu M^2}{17500 , \mu M^2} " Look how fucking jumbled and confusing it is. Please make it neater

Variables and Constants The characteristic or element that remains the same is called a constant. Example: the number of donuts in a dozen is always 12. So, the number of donuts in a dozen is a constant. Other these values can vary (Example: the price of a dozen donuts can change from $2.50 to $3.00). We call these characteristics or elements

#5. Show work and answer three times and records the sequence of outcomes. What is the probability that Alice's sequence comes before Bob's in alphabetical order? 5. 10 points Prove that for every integer n > 2 (1 . 2 . 3 . ... .n)? > n". ROD AR -7 m AD 4 m. The lines AF and EC
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critically discuss the use of workbooks in an emergent literacy programme

2.Resource:http://www.galluppoll.com GALLUP NEWS SERVICE PRINCETON, NJ -- Gallup's annual update on Americans' driving habits shows cars are still the most used mode of transportation. The percentage of Americans who drive cars is stable, though the poll shows that more Americans are using public transportation than a decade ago. Americans are

Online Tools A Q Question 7 The area of a rectangular backyard patio is 192 ft2. The length of the patio is 4 ft greater than the width of the patio. This situation can be represented by the equation w2 + 4w - 192 = 0. What is the width of the patio in feet? Answer A 8 ft B 12 ft C 24 ft D 16 ft
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Many students work best when they study or work in sessions of 3 or 4 hours at a time. Many students work best when they study or work in sessions of 5 or 10 minutes. Chunking out time for studying is only helpful for some personality types. Many students work best when they study or work in sessions of 45 or 60 minutes

Learning Platform | CompTIA X D2L 24SU-MAT280-N802: Linear Alc X Test 1 - 24SU-MAT280-N802: L X C O 8 . https://www.webassign.net/web/Student/Assignment-Responses/last?dep=34574151 Submit Answer 10 DETAILS MY NOTES Find the inverse of the matrix by Gauss-Jordan Elimination (using an adjoined matrix). (If an answer does not exist, enter DNE.) 13 31
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A survey about the student government program at a school finds the following results: 110 students like the program 120 students think the program is unnecessary. 210 students plan on running for student government next year
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A consumer protection magazine was interested in comparing tires purchased from two different companies that each claimed that tires would last 400000 miles. A random sample of 10 tires of each brand was obtained and tested under simulated road conditions. The number of miles until the tread thickness reached a specified depth was recorded for all

Solve YourOwn Problem:Write your own story problem using mixed numbers that need to bescaledup. The problem shouldhave at leastfive mixed numbers that will be scaledup. Be sure toshow all yourwork, explainyoursteps in yoursolution (inclu ding changing improperfractions tomixed numbers),and write acompleteanswer to your problem.Your answer should

Question 8 (1 point) Vy = 9(x) 10 y = f(x) 5 >X - 10 -5 5 10 -5 Use the graphs of fix) and g(x) to determine the value of a and b. b) Agla)) = -9 A/ b) g(8(b)) = -3 b = Question 9 (1 point) Given f (x ) = Vx - 2 and g(x) = 2x - 4 and h(x) = 24 + 1, determine c(x) = (ho go f) (x) including restrictions on the domain. Show your work for full marks.
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Suppose that instead of estimators of the form aX+e, we consider estimators of the form hat=aX and ask for the value of a that minimizes the mean squared error. Mimic the derivation you have just seen and find the optimal value of a. Your answer should be an algebraic expression involving some of the constants b, c, d, where b=E[^2], c=E[X],

the following number is reported in thousands take it and write it out in currency 3711820

Question 21 - of 21 Step 1 of 1 Find the restricted values of x for the following rational expression. If there are no restricted values of x, indicate "No Restrictions". 9x + 3 x2 + 6 AnswerHow to enter your answer (opens in new window) 2 Points Keypad Keyboard Shortcut ev Separate multiple answers with commas. Selecting a radio button will
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Alan mows lawns in the summer to make money. He knows that, on average, he can mow 1/2 of alawn in 1 1/4 hours.Calculate his average mowing rate in lawns per hour.

The probability that a person who bought a ticket to an event will actually show up is 0.97. If the 500 tickets were bought, find the expected number of people who will not show up. Group of answer choices A. 85 B. 150 C. 49 D. 15 E. 485

MAT 117 Problem Set 2 Name: Directions: Show all work or explain your thinking as you solve these problems or write the explanations. Each numbered problem is worth five points. As part of your solution to Questions 1 and 5, please complete and show Steps 1 and 2 of the "Steps to Solving a Word Problem" (at the bottom of the "Student Resources"
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Solve the equation u_tt= 9u_xx, u(x,0) = e^x, u_t(x,0) = 4 + x.

determine the critical value for a right-tailed test of a population mean at the standard deviation = 0.01 level of significance with 15 degrees of freedom

Mary's restaurant has 5 full-time cooks each getting $140 on Friday night and work from 5:00 to 11:00 PM You also have some part-time cooks that can start any time from 6:00 and work for 3 hours for $50 a night. You use the character F for full-time cooks and P for the different cooks starting in 1 hour intervals. You need to have at least 3 cooks

(f) Would you recommend using the model found in part (a) to predict the bone mineral density of a woman who consumes two cans of cola per day? Why? A. Yeslong dashan x-value that represents a woman consuming two colas per day is possible and within the scope of the model. B. Yeslong dashthe calculated model can be used for any number of colas

From 2006 to 2010, the percent P of total music sales with a certain format is modeled by P =10t - 20,023, where t is the year. (a) Evaluate P for t = 2006 and t = 2010. (b) Use your results from part (a) to graph the equation from 2006 to 2010. (c) In what year was P = 47%

What is the domain of this exponential function? 8 6 2 -10 -8 6 4 -2 0 2 4 6 10 -2 6 -10 {x | x 2 -8} {x X -8}
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Please I need help in finding out what keywords I have to use to find the correct whitespace. I am not sure what they mean by that. I got the exact same code that is correct, but the problem is this whitespace it keeps giving me an error with a yellow space I am not exactly sure what keywords to use to get the answer correct. I put the output and
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9x^2+21x-8=0 Rewrite the equation in factored form. (Factor completely)

Harriet is a 65-year-old patient who scores a 10 on the Mini Mental State Exam (MMSE). Which of the following pathologies is associated with the highest probability of a severely impaired (13) MMSE score? A. Tau + Abeta + TDP-43 B. Tau + Abeta + alphaSyn C. QMP

How large a sample would be necessary to estimate the true population mean in a large population within 4%, with 95% confidence? Assume population standard deviation is 0.28

Unit 3 Test -Trigonometry Part A - Knowledge and Understanding [10 marks] 1. Which could you use to determine the measure of an angle in an oblique triangle if you only know the lengths of all three sides? (1 Mark) A. Sine Law B. Cosine Law C. Tangent ratio D. Sine ratio 2. If

4. [3 marks] The plane m has a normal vector [3, 3,2] and contains the point P(7,0,2). Write a Cartesian equation for
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(d) Consider the ODE du In (1 - sin2 u) dt 1 - e-2u (3) (i) Show that u = 0 is a fixed point of the ODE. Hint 1: sina ~ a - + as 120 + ... for la|
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Math 30-1 exponents and logs The domain and range of the inverse of y is 2 O {x x ER} and {y | y 2 0, y ER} Ofa |x >0, x ER; and { y y ER} O {x x
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Let U={1,2,3,4,...,10};M={1,3,5 };N={5,6,8,10};P= {4,8,10} Find (list the elements) MP Find P^' Find M N True or false: P True or false: {3,5}M True or false: {1,3,5}M True or false: 2M^' True or false: PN What is the cardinality of set N

Please explain where the blue circled (x) and (-x) is coming from only. Do not explain the proof only of how x and -x were obtained. Thanks (4) F2: Section LS, Exercise 28 I F3 and F4: Section 1.3, Exercise 30 Let W. and W2 be subspaces of a vector space V. Prove that V = W. EB W2 if'f each vector in I" can be uniquely written as x. + .12, where
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This open-book midterm exam must be completed individually. During the exam, you may use (graphical) calculators, tables, and the course formula sheet. Answers must include intermediate steps and explanations. 1. (a) (3 points) Determine the cost function C(q) for the marginal cost function MC(q) = 4q2 + 8q, given that the costs are 150 when 3
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1. (a)(3 pts) Determine the cost function C(q) related to the marginal cost function MC(q) = 4q + 8q, given that the costs are 150 when 3 products are produced (i.e., C(3) = 150).(b)(3 pts) Determine the integral function of 4 + 2 dx. 2. (a)(3 pts) How is the transpose of a matrix formed? Create a symmetric (3x3) matrix A, with a22 = 4 Demonstrate
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A sales representative is paid the greater of $ 950 or 81. of sales. is what volume of sales will the be stadit to earn more from comission - based Compensation ? ( 9) $1 , 187.50 ( b) $ 1 1 , 875 ( C ) $ 1 , 875 dlac (01) $ 9, 500
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THE FOLLOWING RATIONAL EQUATION HAS DENOMINATORS THAT CONTAIN VARIABLES, FOR THES EQUATION, a. WRITE THE VALUE OR VALUES OF THE VARIABLE THAT MAKE A DENOMINATOR ZERO. THESE ARE THE RESTRICTIONS ON THE VARIABLE B.KEEPENG THE RESTRICTIONS IN MIND, SOLVE THE EQUATION, 1 75 = _ 16 X- 2 X - 2
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Find the solution of the recurrence relation an = 40,_1 + 3n2", given ao = 4
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Answer the question Question 4 of 6 Determine which of the following expressions are factors ofthe quadratic equation below. Select all that apply. $2+8$+15
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When is it appropriate to use in the hypotheses? I) When you are conducting a z test II) When you are conducting a t test III) When you are conducting a 1 proportion z test IV) It is never appropriate A. both I and II B. both I and III C. I only D. IV only

The SWEET science of CANDYMAKING By Tom Husband Here is an easy recipe for you: Heat a cup of water in a saucepan until it boils, add three cups of sugar, and stir with a spoon. Then pour the solution into a glass jar. Dangle a wooden stick into the syrup, and leave it for a few days. When you return, you will find... rock candy. tals form, they
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Assignment IC , 4 1 . Use the focus-directrix definition of a parabola to answer the following questions. 1 ) How would the shape of the parabola change if the focus were moved up , away From the directrix ? How would we describe pl 2 ) How would the shape of the parabola change if the forus were moved down, toward the directix ? How Would we
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10 Question 6 The modu H 14 The this anniver as an ordered pair, Parentheses "and comma required. No spaces] Amwer 10 Anwer 21 Quiz Score: 4 out of PILsen
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a line passes through the point (-3,-1) and has a slope of -3 write an equation in slope intercept form for this line

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:

Graph the given functions, fand g, in the same rectangular coordinate system. Use the integer values of 3: given to the right at the functions to obtain ordered pairs. Describe how the graph of g is related to the graph at f. maul; x=n,1,4,s g{}(}=q||')
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A STUDY OF POTENTIAL AGE DISCRIMINATION CONSIDERS PROMOTIONS AMONG MIDDLE MANAGERS IN A LARGE COMPANY.THE DATA ARE AS FOLLOWS: AGE |UNDER 30 |30-39 |40-49 |50 AND OVER | TOTAL PROMOTED |9 |29 |32 |10 |80 NOT PROMOTED |41 |41 |48 |40 |170 TOTALS |50 |70 |80 |50 FIND THE EXPECTED NUMBERS IN EACH CELL UNDER THE HYPOTHESIS OF INDEPENDENCE OF AGE AND

Kindly help SECTION A: MCQ Type II Instructions i. There are fifteen (15) Multiple choice questions in this section ii. Answer all in the answer sheet provided 1. The following variable(s) is(are) measured on a nominal scale. Contact) Height in cm. F g Contin Numett Nominal [ b) Ethnic groupT mov areluc) Social class (I/II/III-N/III-M/IVY) ordeal
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