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Mathematics Questions and Answers September 20, 2021

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AutoSave . Off Envisioning a Culture for Quality Fall 2021 - Protected View v Search (Alt +Q) File Home Insert Page Layout Formulas Data Review View Help PROTECTED VIEW This file has been verified by Microsoft Defender Advanced Threat Protection and it hasn't detected any threats. If you need to edit this file, click enable edit F10 - : X Y fx
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image below (1 point) The stopping distance d of an automobile is directly proportional to the square of its speed v. A car required 60 feet to stop when its speed was 40 miles per hour. Find a mathematical model that gives the stopping distance d in terms of its speed v. Round the k value to 5 decimal places. Your answer is d = Estimate the
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predicts that it will sell 7,200 units of Mahogany and 5,600 units of Aspen in the next period. The unit contribution margins are $3.15 and $6.30, respectively. What is the weighted-average unit contribution margin
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Problem 5. (Bonus) Let A be an m x n matrix. Prove that there exist constants C1 and C2 which depend on m and n but do not depend on A such that
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A new screening test for glaucoma produced the following results: True Glaucoma Status Screening Test Positive Negative 87 14 16 362 Based on these data, calculate the test's sensitivity, specificity, positive predictive value, negative predictive value, true prevalence, and overall accuracy, respectively. Interpret each of the calculated measures

SIMULATION AND MODELLING (a)Based on the frequency with which gaps occur analyze the sequence of sixty random numbers generatedto test whether they are independent. Use =0.05 30 48 36 1 54 34 96 6 61 85 48 86 14 86 89 37 49 60 4 83 42 83 37 21 90 89 91 79 57 99 95 27 41 81 96 31 9 6 23 77 73 47 13 55 11 75 36 25 23 72 60 84 70 30 26 38 5 19 73 44

What is AT? A=[872234595638] O A=[825673932458] O A=[278432595836] O A=[278643235958] O A=[638595234872]
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pls help!! this is an continued page of the lesson 1 assignment from carnegie learning called satisfactory factoring. it asks to factor each polynomial over the set of real numbers and use the factors to sketch the polynomial!! \f
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pls help

Write each fraction in terms of the LCM of the denominators. 3 2 x 2 +11 x 21 = 2 x 32 x = 3 x 1 x +7 = 2. Simplify : (9+3 i )(5+2 i ) 3. Simplify: 15 i 5+ i

This unit of Integrated Math 3B focused on trigonometric functions. From the beginning of this unit to the end, students explored periodic phenomena in the real world from weekly cycles to the Ferris wheel. Using the Text Editor, write an essay summarizing at least three of these examples and why these examples qualify as periodic phenomena.

3. Do the following problem in your groups. Richards Tree Farm, Ltd. has branched into gardening over the years and is now considering adding patio furniture to its product lineup. Currently, the area where the patio furniture is to be displayed is a vacant slab of concrete attached to the indoor shop. The company originally paid $8,500 to put in
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There are 4 possible outcomes for a LP solution-- Unique ----a unique optimal solution Alternative- ---alternative (multiple) optimal solution Unbounded- --unbounded solution infeasibility ---Infeasible solution Identify the type of solution for the following circumstances by using the terms above in bold : 1.The solution is X= 15 and Y =58. (a.

An aerial photographer who photographs farm properties for a real estate company has determined from experience that the best photo is taken at a height of approximately475 ftand a distance of 850 ftfrom the farmhouse. What is the angle of depression from the plane to the house? (5) An aerial photographer who photographs farm properties for a real
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Solve the following ordinary differential equations (a) x(y' - x) = y; y(1) = 1
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1. A researcher is testing the claim that adults consume an average of at least 1.85 cups of coffee per day. A sample of 35 adults shows a sample mean of 1.70 cups per day with a sample standard deviation of 0.4 cups per day. Test the claim at a 5% level of significance. What is your conclusion? 2. A government Bureau claims that more than 50% of

Problem Set 1: The paired-samples t test Research Scenario: A sports psychologist is studying the efficacy of a new public school health program on the number of minutes 10 th graders exercise per week. She surveys a sample of 10 th graders before the program begins and records the number of minutes they report exercising per week. After two

What would an investor, wanting a 12% capitalization rate, pay for a property which has $750,000 in gross income with expenses of $300,000
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52K-Fall 2021-Finite Math Etha HW Score: 0%, 0 of 9 points E Homework: Section 10.3... Question 6, 10.3.24-BE Part 1 of 2 O Points: 0 of 1 Interval Frequency Stock analysis. The price-earning ratios of 100 randomly selected stocks from the New York Stock -0.5 -4.5 15 Exchange are: 4.5 -9.5 42 9.5 -14.5 25 14.5 - 19.5 11 19.5 -24.5 2 24.5-29.5 A -
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Listed below is acompany's sales in Year 1 through Year 12along with the national income of the country, where thebusiness is set up. Year National Income (in millions of dollars) x Company's sales (in thousands of dollars) y Year 1 305 470 Year 2 316 485 Year 3 358 499 Year 4 350 515 Year 5 375 532 Year 6 392 532 Year 7 400 556 Year 8 398 576

Use the graph of the given function to find any relative maxima and relative minima. 9) f(x) = x3 - 3x2 + 1 A) maximum: (0, 1); minimum: none B) no maximum or minimum C) maximum: none; minimum: (2, 3} D) maximum: {0, 1); minimum: {2, 3}
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The following assignment will allow you to master the material on Normal Distributions & Sampling Distributions. 1. It is very important to be able to find probabilities for a given z score. Using software or a Standard Normal Distribution table, determine the following probability for the area a. between z = -0.52 and z = 2.33 b. z > 1.65 c. z <

Which of the following does the term "drum" commonly connote? Check all that apply. Conga drums Snare drum Rhythmical Loud Percussive Bongo drums Bass drum Cylindrical
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Sequence B 1: speaker 2: woofer 3: 10-inch woofer 4: 100-Watt 10-inch woofer 5: 100-Watt 10-inch woofer with a paper cone The intension of Sequence B is: Decreasing Increasing The extension of Sequence B is: Decreasing Increasing Unchanged

b. What is the total amount of money you deposited into the IRA? Show work here c. How much money did the IRA earn for you? Show work here
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Exponential Functions Given the function f(x) = x2 - 6x + 1, determine the average rate of change of the function over the interval -1
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C . Predict the mean labor hours for moving 500 cubic feet with two large pieces of furniture
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From your personal experience, how has your employer followed the textbook's example of a training plan

A famous example of the difficulty in experimental design is the Hawthorne Effect.Studies were done in the Hawthorne Plant of Western Electric in Illinois between 1927 and 1932 to determine if lighting, humidity and other factors affected employee productivity.It was discovered that the mere fact of doing the experiments, independent of which

Extended coverage sprinklers are a tWhich of the following is acceptable for the listing of an extended coverage pendent sprinkler? Selected Answer: Correctd. 18-ft x 18-ft Answers: a. 17-ft x 17-ft b. 22-ft x 22-ft c. 14-ft x 28-ft Correctd. 18-ft x 18-ft e. 16-ft x 20-ftype of which of the following? Selected Answer: Correcta. Spray sprinkler

Today, a personal trainer claims the mean weight has significantly gone down from last year. Last year, the mean weight from the population was 164.52 lbs. The trainer uses a random sample of 15 female adults after being on the diet for one year and determines their weight (column 2). Use a hypothesis test (t-test) to test the trainers' claim

what confuses me is that a unit in Z is either + or - 1 but other numbers in Z also have an inverse

I don't quite get how to find the formula for this Assume the given square tiles the figure below not " ) included (2 ) ( 3) Questions: 1 Create a formula By identifying pattern on the figures gwen above. let an be the sequence files are in the eight figure in 2 How many the sequence
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Simple Interest How much interest will you have to pay for a credit card balance of $986 that is 1 month overdue, if a 21% annual rate is charged? You will have to pay $ in interest. (Round to two decimal places.) Enter your answer in the answer box and then click Check Answer. Clear All All parts showing MAR 23 DD F9 C5 F6 E3 esc % a O 3 4 2
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onsider the following two portfolios using the Fama French Three Factor Model, where the risk free rate is 0.65%, the return of the market is 9.50%, the value risk premium (HmL) is 4.30% and the size premium (SmB) is 2.15%. Portfolio A is a small cap value portfolio and has an exposure to the value risk factor of 85% and an exposure to the size

Step 1 of 3Translate"The Sum of a number and -7 Step 2 of 3 Translate "The quotient of the number and -29 Step 3 of 3 Write out the equation Don't solve the Equation

When you're asked to prove (or show) something, give a full argument (do not omit steps or details). You're not required to re-print /write the questions on your assignment. Due by 11:59pm on Tuesday February 20, (1) (2) (3) (4) (5) (6 e (7) (8) (9) (10) Suppose that a, b are positive integers. Show that if @b then alb (Hint: Use FTA). Suppose p
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the annual rate of interest on a mortgage loan is 11 1/2. the monthly interest payment is 453.75 what is the princciapl amount

10. Practice similar |Help me with this # 1 The growth of a certain bacteria population can be modeled by the function A(t) = 350e0.032t where A(t) is the number of bacteria and t represents the time in minutes. a. What is the initial number of bacteria? (round to the nearest bacteria.) b. What is the number of bacteria after 5 minutes? (round to
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1) Find dy/dx for2y2144=2x2 2) An apple grower finds that if she plants 20 trees per acre, each tree will yield 90 bushels of apples. She estimates that for each additional tree that she plants per acre, yield of each tree decreases by 3 bushels of apples. How many trees should she plan to maximize harvest per acre? (harvest) = (yield per tree)

Please help with all these and show work URGENT Teacher : Score : Date : Solve for the given variable. Triangle Angle Sum 120 1) 820 3x 5) 40 5v + 4 X = V = 52+ 20 50 2) 560 6) 6f +50 52 65 Z = _ f = 1110 3) 530 46 + 20 7) 110 350 5d b = a = 46 114 4) 8) 6e +50 1490 6a + 1 0 67 e= a= *Math-Aids.Com
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Solve each equation. Round your answers to two decimal places 1. \f\f\f\f\f\f
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question 14 Charmaine purchased a prepaid phone card for $50.50. Calls cost 7 cents a minute using this card. The credit, C (in dollars), left on the card after it is used for x minutes of calls is given by the following function. C (x) =50.50 -0.07x How much credit is left on the card after Charmaine uses it for 40 minutes of calls? dollars X
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use root test to solve this problem 15. Show that if (an) is a sequence in R, and an?" > 0 for some 7' a 0, then 22:0 (lawn! converges absolutely for every :1: E R
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Devon's gross annual salary is $73,015 with biweekly paychecks. If he is single with 1 dependent child, compute the biweekly withholding his employer will send to the IRS. Use the following information: 2023 Head of Household Person Biweekly Withholding Table Taxable Wages T fn I'l '\\'J' $0.00 plus 10% of amount exceeding $842 $63.70 plus 12% of
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quick and correct response for an upvote Let A be the matrix 2 2 41 8 12 24 8' (a) What is a basis of the column space of A? In your answer below, if a vector is not needed, enter 99383736 in each of its entries and put all such vectors after the basis vectors. |:||:]|:]|:] (b) What is a basis of the row space of A? In your answer below, if a
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Simple Interest Score: 0 of 1 pt 3.1.33 Assigned Media Use the formula for the amount, A = P(1 + rt), to find the indicated quantity. P = $4,300; r=8%; t= 2 quarters; A =? A= $|(Type an integer or a decimal.) Enter your answer in the answer box and then click Check Answer. All parts showing Clear All MAR 23 ... esc F1 N - F3 CA F5 F6 @ & 2 4 5 Q
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Which pair of events are non-overlapping when rolling a single six- sided die? Getting a number greater than 5 O Getting a number less than 3 O Getting an odd number Getting a prime number O Getting a number greater than 3 Getting a number less than 5 Getting an even number O Getting a number less than 3
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Consider the following LQR problem. T min J = [x] (t) Lac(t) + u] (t) u(t) ] dt subject to i = Ax + Bu, x(0) = to where B is an orthonormal matrix (i.e., it is square and BB" = BB = I). Apply calculus of variations to find the minimizing control law among all feedback control laws of the form u(t) = -K (t) x(t)
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2. Consider the function me = j W) at, where y = t) is the function whose graph is shown below. W4; 75\"!) t i] Using the interpretation of a denite integral in terms of areas, compute the following: a) F(1) = msm: ii} Determine F12}
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6. Consider the DE (y4 + 2y) dac + (xy3 + 2y4 - 4x) dy = 0. a. Show that it is not exact. b. Show that u(y) = y 3 is a solution of Nx - My dy M M(y). c. Use part (b) to convert the original DE into an exact DE. You do not need to solve it.]
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1. What is WIC? What does this program do? The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) program is important in ghting food insecurity among lowincome, malnutrition pregnant, postpartum 1women, lactating women, and children up to 5. It provides nutrition education, food supplementais, healthcare directing, and
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When similar elements are equally distributed on either side of an implied division or axis within the picture plane. The result is a mirror-like repetition of either side of the axis. Is what kind of balance? Group of answer choices Symmetrical Balance Asymmetrical Balance Crystallographic Radial Balance

The table shows the number of days on the market for the 36 recent home sales in the city o 73 174 157 44 221 176 39 110 98 128 114 151 73 32 78 37 4 139 14 110 104 43 31 64 66 41 167 5 82 129 94 104 135 129 6 161 picture Click here for the Excel Data File (a1) Construct a frequency distribution and histogram, using nice (round) bin limits. (Round

Make an Excel line graph of the following bond yield data: BondYield.xlsx Download BondYield.xlsx Describe the pattern. Is there a consistent trend? (You are looking for the big picture, not small fluctuations.) Pick the best answer. It increases mildly until October, when there is a sharp decrease. It decreases until February, and then begins to

The population standard deviation for the height of college football players is 2.7inches. If we want to estimate a 95% confidence interval for the population mean height of these players with a 0.65margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number, do not include any decimals)

A poll was taken to determine if voters would support turning May 4thinto a national Star Wars holiday (May the 4thbe with you - get it?). One thousand people were surveyed and 100 indicated support for the idea. Calculate 95% confidence intervals for this proportion. LL = .08, UL = .12 LL = .03, UL = .30 LL = 14, UL = 42 LL = .16, UL = .40

Which of the following situations describes a continuous distribution? probabilitydistribution showing the weights of newborns A probabilitydistribution showing the amountof births in a hospital in a month A probabilitydistribution showing the average number of days mothers spent in the hospital A probabilitydistribution showing the number of

Each student must individually complete a tax research project memo. Students should choose one of the three topics below. The memo should be typed and in the format provided below (labeled Appendix A-6). Students should use RIA Checkpoint, available through the PSU library to conduct the research. It will be graded on accurately and insightfully
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Using synthetic division, what is the quotient for (3x3 + 8x2 - 3x + 48) : (x + 4)? If the remainder is non-zero, express the remainder term as a fraction using the divisor as the denominator
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In which of the following equations is the distributive property properly applied to the equation: 16(y+8)=2416(y+8)=24 ?

A camera has a list price of $510.98 before tax. If the sales tax rate is 8.25% find the total cost of the camera with sales tax included. Round your answer to the nearest cent, if necessary

Answer all questions, no explanation needed P. 1 of 10 P. 2 of 10 3. Which of the following polynomial function has degree = 3 and leading coefficient -6? Ontario Virtual a ) f( x)=3-6x3+2x2-1 School b ) f ( x ) = 3 x - x 6 - 5x 2 - 1 TEST SUMMARY c) f ( x ) =-6x+x3+2x2-1 TEST 1 d) f ( x ) = x+x3+2x2- 6 Knowledge & Application 4. Which polynomial
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*Need Help with multiple choice highlighted* If SSE=48 and SSR=12, compute the coefficient ofdetermination, r2, and interpret its meaning. r2= 0.2 0.2 (use integer or a decimal. Do notround.) Interpret the meaning of r2. Choose the correct answer below. A. It means that r2 of the variation in the independent variable can be explained by the

(01.07 MC) AE and DF are parallel. If mzABG = 10x and myHCF = 9x + 10, what is m_ABG? D G B H E O 10 80 O 98 100
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Can you help me answer these problems? Questions 1-5 are based on the following You randomly clock a sample of 96 vehicles on a freeway and obtain the following vehicle speed data 88 90 83 69 81 89 79 69 81 87 76 69 78 72 82 74 67 85 71 89 93 75 97 81 85 76 72 97 87 67 94 81 78 70 82 97 73 89 70 80 91 88 63 65 81 94 80 85 81 81 77 67 90 101 80 82
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Using Algebra in reference to functions specifically, explain the steps to 4 (8-2x) =256. The answer itself is x=2. I'm just missing the steps to explain.

Verify that y1(x) = e4x is a solution to the initial value problem: y +3y 4y=0; y(0)=1; y(0)=4. Problem 2. Find y2(x), the solution to the initial value problem: y +3y 4y=0; y(0)=5; y(0)=10. Problem 3. The linear transformation T : C2(R) C0(R) is defined by d2 d T(f) = dx2f+3dxf4f. Show that the functions y1(x) and y2(x) from Problem 1 and Problem
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Normal Distribution 1. Find the area under the standard normal curve between a) z = -1.20 and z = 2.40 b) z = 1.23 and z = 1.87 c) z= -2.35 and z = -0.50
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Use the properties of Boolean Algebra to reduce the following Boolean expression to the simplest form possible: A'+(B'A'+A) (B+A)

olve for the variable. 42 minus left parenthesis 2 x plus 5 right parenthesisequals7 left parenthesis 5 minus x right parenthesis plus 4 x

If y is a function of x and y ' is the derivative of y with respect to x , what is the derivative of xy with respect to x ?

1.Statistics professor Dr. Stat claimed his pulse rate at the peak of an exercise program was lower than the mean pulse rate of statistics students. Dr. Stat's pulse rate was measured to be 60.0 bpm. His 20 students had a mean pulse rate of 74.4 bpm with a standard deviation of 10.0 bpm. What critical value you should use to test Dr. Stat's claim

Find the surface area of the shape formed by rotation r = 2 + 2 cos() about the polar axis (y = 0). range: (0,pi)

2. If we conduct a survey and there is a 92% chance of selecting someone who will complete the survey, what is the probability of selecting someone who will not complete the survey
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Using the limit comparison test determine whether the infinite series of n=1 of ln(n+4)/(n^5/2) converges or diverges

Can you help me please Question Help A certain drug is used to treat asthma. In a clinical trial of the drug, 16 of 254 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal
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Question 20 15 out of34 points Read the following process description and llin the blanks. W time should be given in hours. Answers must be numeric only {do not enter units of measurement orwords}. If an answer is a whole number no decimals are needed. For any decimal answers round to 2 decimal places {example {13333333333 would be 1.33}. Before
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Can you help me better understand this problem and solution I dont understand the symbols EMV (Sectioning ) = P(Success) * Profit = 1 * $0.2 Mn = $ 0.2 Mn EMV ( Improvement) = \sum (P(Success) * Profit) = (0.9 *0.75 *2.74 )+ (0.1 * {-0.1}) +( 0.9 * 0.25 * {-1.66}) = $ 1.8495 Mn + ( - .01) + (-0.3735 Mn) = $ 1.466 Mn

Using your output in part c, what are the average employee satisfaction scores for male and female employees at Company ABC
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Pls help question 9 Fill in the range of values for X. If necessary, round to the nearest tenth.
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Fill in the blanks A necessary condition for Weibull parameter estimation using Maximum Likelihood Estimation is to have and
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9. (4 points) Section 2.4 We have a statement "If f(z) is not an entire function, then g(z) = f2(z) cannot be an entire function.". Two students and a professor had the following conversation: A: The statement is false. I can give a counter-example. Let f(z) = Vz, assuming that it is a branch that takes -1 to i. Then it is not analytic on the
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I have a group of 10 people. 6 are for hot dogs, 4 against. I make a new group of 5 people from my first group of 10, 1 person for hot dogs and the other 4 randomly selected from the remaining 9 members of the original group - what is the formula to calculate the probability that all the members of my new group will be for hot dogs, that a

Suppose the heights of 18-year-old men are approximately normally distributed , with mean69inches and standard deviation5inches. (a) What is the probability that an 18-year-old man selected at random is between68and70inches tall? (Round your answer to four decimal places.) b)If a random sample oftwenty-seven18-year-old men is selected, what is the

Calculate the following: a. Contribution dollars per personal computer b. Break-even volume in units c. Break-even volume in dollars d. Net profit if 7,500 computers are sold e. Necessary computer unit volume to achieve $1,000,000 profit
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F. Using Transformations to Model Data #1, #3 Choose of the metrics listed in the table below and complete the following: a) Plot the data as a scatter plot using an appropriate viewing window. b) State which common type of function best matches the data. Pick from transformed versions of the square root, quadratic, linear, absolute value, cubic,
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Where is the rejection region if t > 1.440 and df = 6? A. a=.01 B. a=.05 C. a=.10 D. a=.02

MCR3U Trigonometric Functions Assignment Name: 131 Part A: Multiple Choice [8] 1. Cosine is negative in which quadrants? a. 1 and 2 b. 2 and 3 c. 3 and 4 d. 2 and 4 2. The principal angle for - 240 is a. 240 b. - 240 c. 260 d. 120 3. The related acute angle for 210 is a. 30 b. -30' C. 210' d. -150 4. The period for the function y = cos 0 is a. 180
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Hi, I need answer for the following question: 4. Let T1: R3 > R5 and T2: R5> 1R3, with [T1] and [T2] the associated matrices. Assume [T1] and [T2] are both full rank. For each of the following transformations, first determine the domain and codomain, and then decide whether the transformation is \"one to one, \"onto,\" \"both,\" \"neither\" or
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Question 9 In the computer game World of Warcraft , some of the strikes are critical strikes, which do more damage. Assume that the probability of a critical strike is the same for every attack, and that attacks are independent. During a particular fight, a character has 271 critical strikes out of 662 attacks. What is the lower bound for the 99%

In this activity we will consider the effects of changing the surface area and volume as a result of changing the agar cube size. To consider both of those components, we will make them one variable by calculating the surface-area-to-volume ratio. To calculate the surface-area-to-volume ratio, you will divide the surface area by the volume of your

3. Let A be a symmetric square matrix. Consider the linear programming problem minimize 0T0: subject to Am 2 c x > O Prove that if :E* satises 1427* = c and 90* Z 0, then 95* is an optimal solution
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Tucson has a number of resorts and golf courses, with most of the resorts being near the north end of the metropolitan area--close to the _____ Mountains. Group of answer choices Santa Catalina Rincon Sabino Canyon Tucson Santa Rita

Haydn's String Quartet The Emperor How many performers play on each of the four parts comprising a string quartet? (That's a total of four musicians = a quartet) How many performers play on each of the four parts comprising a string quartet? (That's a total of four musicians = a quartet) 1 2 3 4

Solve the initial value problem D' f - Df = 0 f(0) = Df(0) = 1
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what is the x-intercept of 5 and a y-intercept of -2

If a runner jogs 6 miles west and then jogs 3 miles north, how far is the runner from her starting point if she plans to run straight back? Remember to simplify your answer. O 3V15 O V45 O V9 O 5V/3 O 3V/5
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R question 4 Load the countries data set "countries.csv". We want to test whether the population size in Africa is the same as the population size in Europe using a two sample t-test. In order to just do the comparison, we will filter the dataset so it only includes Africa and Europe: library(dplyr) filtered_countries a. One of the assumptions of
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On Donna's 16th birthday, she received $1,500.00 which she invested at 6.00% interest, compounded annually. That investment is now worth $16,000.00. How old is Donna today? a) age 59 b) age 49 c) age 56 d) age 53 e) age 51

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