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Mathematics Questions and Answers September 30, 2021

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Inbox - salisma0508 X Content Quiz Module CA6 ( X Test Module CA6 (P X Search Results | Co X https://mylab.pearson.com/Student/PlayerTest.aspx?caliper_profile_url=https%3a%2f%2fblackboard,starkstate.edu%2flearn%2fapi%2fv1 Foundations for Clge Algebra (MTHO25-022-50485 Haiduc) st Module CA6 (Polynomial This test: 59 p s) Question 5 of 18 This
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Ev Heading 2 Heading 3 Normal No Spacing Heading 1 R Program for Contingency Table of Liked x Military Tweet CrossTable(X$liked, X$mil_tweet, digits=3, max.width = 5, expected=FALSE, prop.c=TRUE, prop.r=FALSE, prop.t=TRUE, prop.chisq=FALSE, chisq = TRUE, fisher=FALSE, mcnemar=FALSE, resid=FALSE, sresid FALSE, asresideFALSE, missing.include=FALSE
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Johnny Rocket can run 300 meters in 70 seconds. If his speed remains constant, how far could he run in 375 seconds? Round to one decimal place. meters
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Please help me with the following problem. List, up to isomorphism, all abelian groups of order 144 = (24) (32). Please avoid repetitions
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Please briefly explain work involving graph(s), shading, and appropriate probability distribution table(s)/formula(s)/applet(s).Show probability values to preferably four decimal places , If the heights of women are normally distributed with a mean of 65.0 inches and a standard deviation of 2.5 inches and the heights of men are normally

Approximate f ( x ) = ln x for the given value of x . Round to four decimal places. f (9)

statistics: The data regarding the preparation time of eight students for the exam and their scores from the exam are given in the table. Find the simple linear regression equation between two variables and the coefficient of determination \f
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Answer the question in the picture attached, ignore 1, 4 and 6. Use a = 8, b = 10 Let axyz - ay3 +xz? =bw be a homogenous polynomial in PS(x,y,z,w), describing an algebraic variety Vin P3. 1. Show the view of V in affine patches Ux, Uy, Uz, Uw. when x=1,y=1, z=1, w=1. 2. What is the dimension of V? 3. Is V an irreducible variety? 4. Find all
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Please explain this to me step-by-step I've been trying to figure out these type of questions and I just keep on messing something up and I don't know what it is Write an equation of the line containing the given point and perpendicular to the given line. (6, - 3); 7x + 2y =5 The equation of the line is y =
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Find the reverse operation that transforms the second matrix into the first. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. Replace row 3 by its sum with times row 1. (Type an integer or a simplified fraction.) O B. Interchange row 3 and row 2. O C. Scale row 3 by (Type an integer or a
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What is the biconditional statement of the following conditional statement? "If a polygon has four sides, then it is a quadrilateral

Degree/angle question help please. If x = 30, find the measure of the angle in which ?" appears
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12) Parking at a large university can be extremely difficult at times. One particular university is trying to determine the location of a new parking garage. As part of their research, officials are interested in estimating the average parking time of students from within the various colleges on campus. A survey of 338 College of Business (COBA)

The average museum visitor only looks at a work of art in a mere glance for seconds. Group of answer choices True False

The numerator degrees of freedom is the value in the Regression row and DF column. The denominator degrees of freedom is the value in the Error row and DF column. The output is below. Analysis of Variance SOURCE DF Adj SS Adj MS Regression 1 7504.1 7504.1 Error 38 2999.5 78.9 Total 39 10503.6 Predictor Coef SE Coef T Constant 64.69 4.182 15.47 X

MA 26600 Ordinary Differential Equations (Laplace Transforms) 13. Let ult ) = wi(t)(t - 2)2 - us(t) ((t - 3)3 - 2) - us(t)et What is the value of y(4)? (A) -2 - ed B) 5 (C) 32 (D) 4 (E) -es
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Answer 1-16 The graph of f(x) and g(x) are shown below. How many solutions does the system of equations have? What is the solution to the system? A Three B One A (0, 3 ) B (1, -1) C Four D Two C ( 1 , 3 ) D (-3, 1 ) E No Solution 5. 2 . What are the solutions to the system of equations graphed below? How many solutions? A (2, 0) B (0, 4) D (0, -4)
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Can I have help with 1-4? Thanks! 1. Complete this statement of the Overlapping Segments Conjecture: If AD has points A, B, C, and D in that order with AB = CD, then 2. How many two-person conversations are possible at a party of n people? Of 120 people? Show your calculations for 4, 5, 6, n, and 120 people. People 2 3 4 n 120 Conversations 0 3 3.
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Idenify the type of function represented by f(x) = 2 (1/2) ^x (a) expotential, (b) quadratic (c) linear ( d) exponential growth

Only answers from question 3-10 11/12/23, 9:32 PM ming-Luxene Ngbatana 11/12/23, 9:32 PM 7.3 Applications of Linear Programming-Luxene Ngbatana 7. A greeting card manufacturer has 400 boxes of a particular card in warehouse I and 270 Stude DESTINATION Data: Assignment: 7.3 Applications of Linear boxes of the same card in he same card in warehouse
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TRESS AND COPING OF CRITICAL CARE NURSES AFTER UNSUCCESSFUL CARDIOPULMONARY RESUSCITATION By Dawn E. McMeekin, RN, DNP, CNE, Ronald L. Hickman, Jr, RN, PhD, ACNP-BC, Sara L. Douglas, RN, PhD, and Carol G. Kelley, RN, PhD, AGNP-BC Background Participation by a critical care nurse in an unsuccessful resuscitation can create a unique height- ened
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c) Suppose you drive to a friend's cottage, a distance of 300km. Determine the amount of money you would save over the return trip by driving at 90 km/h versus 120 km/h. Assume that gas costs $1.00 per litre.

Example: A 1.0 kg book falls from a height of 1.0 m. What is the velocity just as it hits the floor? h = 1.0 m g = 9.8 m \f\f\f\f\f\f\f
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Show all working 4. The following table displays the mean weekly income (RM) of men and women in six age groups who were working full time in the first quarter of 2017. Mean Weekly Income (RM) Age (year) Men Women 16 - 19 264 239 20 - 24 333 302 25 - 34 514 422 35 - 44 639 475 45 -54 692 496 55 - 64 660 426 Perform an analysis of variance to
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19. The mean diastolic blood pressure of people in the U.S. is 77 with a standard deviation of 11. Assume that diastolic blood pressure follows a normal distribution. Find the zscore for a diastolic blood pressure of 54. Is this value unusual? \"Thy or why not
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What are two important similarities and two important differences between addition/subtraction situations and multiplication/division situations that students need to understand? Explain why it is important for students to understand these similarities and differences

Suppose that45 % of all babies born in a particular hospital are girls. If7 babies born in the hospital are randomly selected, what is the probability that fewer than2 of them are girls? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult alist of formulas.)

I am taking QSO320 Management by Spreadsheets at Southern New Hampshire University. I am having difficulty setting up the "IF" function to calculate the mean, median and mode. I cannot upload the excel file here, so I am including a sample of the data set with the specific question below: Destination Pallets Total cases Cases Red Wine Cases White

Explain the importance of sampling in the application of inferential statistics in forensic science. Why is simple random sampling the preferred sampling method? What are at least two other sampling methods that are used, and why are they implemented

Perform the indicated operations. left parenthesis negative 4 plus StartRoot negative 16 EndRoot right parenthesis squared Question content area bottom Part 1 left parenthesis negative 4 plus StartRoot negative 16 EndRoot right parenthesis squaredequals enter your response here (Simplify your answer. Type your answer in the form aplusbi.)

Find the average rate of change of the function f left parenthesis x right parenthesis equals StartRoot x EndRoot from x 1 equals 25 to x 2 equals 36. Question content area bottom Part 1 The average rate of change is one fifth . (Simplify your answer.)

A multiple linear regression model based on a sample of 22. 22 weeks is developed to predict standby hours based on the total staff present and remote hours. The SSR is 21,173.31 and the SSE is 35,446.95. Complete parts(a) through(d) below. 1) What are the correct hypotheses totest? 2) Calculate the test statistic. 3) Determine thep-value. 4)

THIS IS AN ORIGINAL QUESTIONThe number of hours of daylight in a town can be modeled by a sinusoidal function of time, in days. The longest day of the year is June 13, with 16.3h of daylight. The shortest day of the year is December 13, with 8.5 h of daylight. a) Find an equation for the number of hours of daylight on the nth day of a leap year.

K(t) is greater than 0 and smooth. does the first imply the second

The class has been given a math assignment. One student is having a problem evaluating one of the math expressions: 9 - (2 + 24) x 12 What function would you tell the student to perform first? 1 point Subtract 2 from 10 Multiply 24 x 12 Add 2 and 24 Add 24 an

a shop has determined that the number of bottles of water they sell on a summer day is a function of the days high temperature, and is approximately given by N(t)=2T+31, where T is the days high temperature, and 80 T 110. SUppose that the predicted high temperatures for the next 7 days are given in the table below. Express high temperatures as a

Acceptance Sampling: For the sampling plan defined by N=1500, n=150, c=2 3. 3.Develop the Operational Characteristics Curve. With this plan, what is the probability of acceptance for a batch that contains 2% non-conforming material? 4. Develop the Average Total Inspection curve. With this plan, what is the average total inspection for batches that

Please Answer, Clear and Concise Answer. Proper Format. Let A and B be (n x n)-matrices. P1: If B is obtained from A by interchanging two rows, then det(B) = -det(A). P2: If B is obtained from A by multiplying one row by k then det(B) = k det(A). P3: If B is obtained from A by adding a multiple of one row to another row (leaving the first row
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Solve using Laplace transforms y"+9y =e' y(0) = 0 given y'(0) = 0
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A biology laboratory starts a Petri dish with 800 bacteria. After 28.0 hours, the population is 6800. Determine the doubling time of the bacteria algebraically using logarithms, to the nearest tenth of an hour. The doubling-time equation is A = A 0 (2) t/d where A represents the population after a period of time, A 0 represents the initial

Is this formula correct? If so how do I use the calculator to find it. 400cm 2 -(25pi+25pi+50pi)cm 2 =85.89cm 2 = Asquare - ( ACL+ ACR+ Acc ) - 40 0 cm - - ( 2515 + 2 ADS + IDTS ) Can? -185.84 cm 2
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mathematics 15. (a) Lengkapkan Jadual 15 di ruang jawapan di bawah bagi persamaan y = 4x + 7x - 15, dengan menulis nilai-nilai y apabila x = - 1 dan x = 2. Complete Table 13 in the answer space below for the equation y = 4x + 7x - 15, by writing down the values of y when x = - 1 and x = 2. [2 markah / marks] (b) Menggunakan skala 2 cm kepada 1
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Use Desmos to find the point of intersection of the curves y= 2 - 3 and y 2 + 2x +1
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no extra detail \f
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A trash company is designing anopen-top, rectangular container that will have a volume of 1080ft^3. The cost of making the bottom of the container is$5 per squarefoot, and the cost of the sides is$4 per square foot. Find the dimensions of the container that will minimize total cost. Final answer looks something like this: ____ ft x _____ ft x

Determine the derivative for the following function (do not simplify your answer): f(x) = (x+3x -5) (5x) + 4x - 3x+8)
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Currently, among the 20 individuals of a population, 2 have a certain infection that spreads as follows: Contacts between two members of the population occur in accordance with a Poisson process having rate . When a contact occurs, it is equally likely to involve any of the possible pairs of individuals in the population. If a contact involves an

MATH LIBERAL ARTS QUESTION 13 Use the graph below to answer the question. D B G m H Identify the vertex as odd or even. Vertex C. O odd O even QUESTION 14 Click Save and Submit to save and submit. Click Save All Answers to save all answers
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In a completely randomized design, 12 experimental units were used for the first treatment, 15 for the second treatment, and 20 for the third treatment. Source of Sum of Squares Degrees of Mean Square F value Variation Freedom 1200 1800 a. Complete the ANOVA table. b. At a 0.05 level of significance, is there a significant difference between the
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4. Problem (40 points total) Consider the primal dual relationship. The following figure together with Primal-Dual Table at the top of exam may be helpful to recall the notation. Primal problem Dual problem "I i Zc-x-=Z W=21biyi i=1 a) (15 pts) Discuss relationship between feasible solutions primal and dual problem solutions, relationship between
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2. A researcher calculated a standard error for the t statistic. The standard deviation was 1.18 and the sample size was 18. The researcher performed the following operations to convert the standard deviation into a standard error: 1'13 \"'1 = 0'29 . Are the researcher's operations and answer correct? [1 point] Explain your answer. [2 points]
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21 Find the equation of an ellipse with axis parallel to x-axis; center at (0, 0), eccentricity is 1/3 and distance between foci is 2. a. 2 8 + 2 9 = 1 c. 2 8 2 9 = 1 b. 2 9 + 2 8 = 1 d. 2 9 2 9 = 1

Questions 5-8. Your friend is able to invest $120 a month in a 401(k) with a predicted growth rate of 3%. Your friend's company will match 50% of your friend's contributions. How much does your friend's company contribute every month? to (round to the nearest dollar) Use Excel's FV function to find the account balance after 20 years. (round to the
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Suppose the Federal Transportation Board says that states will be in compliance, for now, if 50% (or more) of its highway exits meet the new standards. Based on the results of its sample, can the State of Washington be certain that it is in compliance? (I.e. can the state be certain that atleast 50% of its new exits are meeting the new

Draw the direct form I realization for the following transfer function: H (S) = s(s + 2) (s + 1)(s +3)(s+4) Problem 5. (Z Transform) Draw the direct form II realization for the following transfer function: z(3z -1.8) H(Z) Z2 - z +0.16 D DD X
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MTH 1610 Final Exam Summer 2021 Name: 3) (Big Ideas 1, 3) Each of the circles packed into the rectangle below is 10 cm across. What is the area of the shaded portion of this figure? Use and explain TWO different strategies to find this area
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2. On most state highways, the fine for speeding depends on the speed of the car. In a certain state, suppose the fine as a function of the number of miles per hour over the speed limit is f (n). The graph of this function is shown below. Fine as a function of number of mph over speed limit $300 $250 $200 $150 $100 $50 SO 0 5 10 15 20 25 30 35 40
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Battery life has a strong, negative, linear relationship with temperature. If the least-squares regression line usingx= temperature explains 90% of the variation in battery life, which of the following must be the correlation,r between battery life and temperature? 7. Battery life has a strong, negative, linear relationship with temperature. If
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true or false: SeF4 can be predicted to have a square pyramidal geometry

The FAA requires that commercial aircraft used for flying in instrument conditions must have two independent radios instead of one. Assume that for a typical flight, the probability of a radio failure is 0.0035. What is the probability that a particular flight will be safe with at least one working radio? Why does the usual rounding rule of three

In December 2019, cases of a severe and a unique pneumonia were recognized in Wuhan, China. Initial case definition and diagnosis required a combination of symptoms (fever, dry cough and pneumonia) and positive chest CT (computerized tomography) results. The pneumonia associated with this disease resulted in what are described as "ground glass

. Given the function f, prove that f is one-to-one using the definition of a one-to-one function. a)f(x) = 1/3x - 6 b)f(x) = x 3 + 3.Given the function g, prove that g is not one-to-one using the definition of a one-to-one function. a)g(x) = 1 - x 2 b)g(x) = x 4 - x 2

Hello, please help with these MY NOTES ASK Marginal Average Cost The Custom Office makes a line of executive desks. It is estimated that the total cost for making x units of the Junior Executive model is C(x) = 90x + 170,000 (0 5 x
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Decide whether the following statements asserting set relationships are true or false. (a) StartSet 1 EndSet{1}is a proper subset ofStartSet 5 comma 1 comma 29 EndSet{5,1,29} (b) StartSet 5 comma 1 comma 29 EndSet{5,1,29}is a proper subset ofStartSet 1 comma 29 comma 5 EndSet{1,29,5} (c) StartSet 5 EndSet{5}is a subset ofStartSet 1 EndSet{1}

A high school math teacher has an Asian American student who performs extremely well in math. Based on this observation the teacher concludes that Asians are good at math. The above reasoning is an example of the exception fallacy

The attentional blink task shows that Group of answer choices a. the limit of reporting the second of sequential images is about a half-second. b. it takes about a half-second to be able to see an image accurately. c. the time it takes to report multiple images is directly related to how fast they are presented, no matter how fast they are

A survey says that 1 out of 10 Filipinos is a member of a fitness center. inferential or descriptive?

Refer to the PC Tech problem described in Example 3.1. Suppose that a new PC model, the VXP, can also be produced on the current assemply line. Each VXP requires 8 hours for assembling, 3 hours for testing, $275 for component parts, and sells for $560. At most, 50 VXP's can be sold. What is the value of the optimal solution? (enter numbers only,
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Solve the following: ' Let u E 02(R3 x [0,1]) be such a solution of the onedimensional wave equation fu, 1E) 831473, m) = 0 for which u(t,0) = u(t,l) = 0 for every t > 0 (this is a rod with xed ends). Show that then in this case the following function (mechanical energy) does not depend on t: E(t) = g [0 [(8tu(t,:1:))2+(8mu(t,:c))2]dzn
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i meant In this lab exercise at what angle was the greatest "hang" time achieved? Question options: 65 degrees 35 degrees 45 degrees 55 degrees

About how much flooring is needed for a room that is 10' wide and 20' long? 200 sq ft 30 sq ft 60 sq ft 600 sq ft

Please Answer, Clear and Concise Answer. Proper Format. Consider two masses m, and my connected to two walls by dashpots with respective damping coefficients cj and C2, and connected to each other by a spring with constant k; see the figure below. If x and y denote the displacements from the equilibrium positions of m, and m2 respectively, then
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Mark borrowed $17,257 to help pay for expenses. If the loan carries an annual interest rate of 4.9% and he wants to be debt free in 2 years by making monthly payments, how much will each payment be?

Solve the following: Let E : Rn \\ {0} -> R be defined as if n = 2, x ER"\\{} E(x) := 2 TT 1 (n - 2) Wn | 20/ 12 - 2 " if n > 3, x E R" \\ {0} in which wn is the surface of the n - dimensional ball with radius one. a) Show that E E LI.(R"). b) Prove that AE(x) = 0 if x ERn \\ {0}. c) Show that -AE = do in the distribution sense on R"
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differential geometry Two distinct parametrized curves 1:: and 13 are called Bertrand mates if for each i, the normal line to a at HE} is the normal line to at EH} An example is pictured below. Suppose a is parametrized by arclength with ma 5E IE} and that at and are Bertrand mates. {a} Show that ,S[s} = {1(5) +r(s]ll"'lrrJl [5} for some function
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1.) Use the figure at the right to answer the following questions. a.) Name three points that are coplanar with point P. b.) What is another name for plane KMN. c.) Name two non-coplanar line segments that do not intersect. d.) Name two planes that do not intersect. 2.) Points R, S, and T are collinear. Point S is between R and T. Use the
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Answer the following question Yes or No? If No, give a reason. (a) Is the graph of y = -3 a horizontal line? Yes O No, the graph of y = -3 is a vertical line. O No, the graph of y = -3 could be horizontal, vertical, or neither. O No, the graph of y = -3 is a line with a positive slope. O No, the graph of y = -3 is a line with a negative slope. (b)
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What would she have had to pay at the regular The dress store is having a sale where all price? merchandise is 1/4 off. A woman buys $42 of merchandise at the sale price. Enter the correct answer. DONE Clear all
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In statistics, X bar represents? Group of I included the following joke in our lecture. What is the point of the joke? Three statisticians are duck hunting. A duck flies by and the first statistician shoots at it, "BAM," and misses by two feet above the duck. The second statistician has time to take a shot at the same duck; he shoots "BAM," and he

Benjamin owns a small Internet business. Besideshimself, he employs nine other people. The salaries earned by the employees are given below in thousands of dollars(Benjamin's salary is thelargest, ofcourse). Complete parts(a) through(d). 10, 30, 40, 50, 50, 55, 55, 55, 65, 90 (a) Determine themean, median, and mode for salary. The mean salary is

Tawny has just purchased a device that analyzes event logs to determine if a group of events has occurred in a sequence. If the events have occurred, the device will initiate the appropriate response. Which of the following does the device implement? Question 13 options: Conditional analysis Packet analysis Behavioral analysis Protocol analysis

A backpack manufacturer wants to know if students in high school carry more books than college students do. Company researchers take a simple random sample from each group and record the number of textbooks each subject is carrying. They compute the following summary statistics

Along with making numbers in your data understandable and relatable to your audience, what else must you do? Question 13Answer a. Clearly connect the numbers to your audience's interest. b. Clearly explain what the numbers mean. c. Clearly communicate the impact of the numbers

Image is attached Determine the optimal solution to the LP min w =ch (Objective Function) s.t. Ax 2 0 (Constraints #1 through #m) X 2 0 Sign Restrictions) if at least one row of A (call it a) satisfies a
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A 45 year old man completed a submax test. It revealed a VO2 of 20 ml/kg/min at a HR of 130 bpm. At 140 bpm, VO2 was 25, at 150 it was 30 and at 160 it was 35. What is his predicted VO2max? How many METs would his MAX be?Leona's resting HR was 80 bpm and her max was 190. What is her HR at 60% HRR

: Polynomial Functions Question 6 (8 points) Saving $ Using what you have learned in this unit, solve the following problem: The profit of a company can be modelled by the polynomial function P() - -1 + 120 -21 + 10. where Pis the profit, in thousands of dollars, and t is the time, in years. When will the company make their maximum profit of $108
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The manufacturer's recommended correct inflation range is 30 psi to 34 psi. Assume the tires' average psi is on target. If a tire on the car is inspected at random, what is the probability that the tire's inflation is within the recommended range? (Round your intermediate calculations andfinal answer to 4 decimal places.) Probability: ____

1, Scarlet Company received an invoice for $65,000.00 that had payment terms of 2/5 n/30. If it made a partial payment of $16,800.00 during the discount period, calculate the balance of the invoice. Round to the nearest cent 2, Tara received an invoice for $4,000 that had payment terms of 5/10 n/30. She made a partial payment of $2,400 during the
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Given the linear transformation 7: 13 _+ 12 such that T -2rty+z 2z one of the following vectors is found in the nucleus of T. Identify it a. b. C. -2 d. OHN
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A market research firm conducts studies regarding the success of new products. The company is not always perfect in predicting the success. Suppose that there is 65% chance that any new product would be successful (and a 35% chance that it would fail). In the past, for all new products that ultimately were successful, 80% were predicted to be

This is for Foundations of Math 12 Write the equation of the hyperbola with vertices (4,8) and (4, -4) and foci (4, 10) and (4, -6) Find the standard form of the equation ellipse having foci (0,1) and (4,1) and a major axis of length 6

5. Reduce /V-J and write your answer in polar and rectangle forms. 6. Is it possible for us to have the following? Explain your answer. LT1 7. . which expression is not correct ? - 10 (b ) . x 4 ) = 2(1 - t ) - uc - 1 -* ) ( c ) x () = act + 1 ) - u ct - 1 ) (d ) x # 1 = act + 1 ) . uci -t )
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(1 pt) A triangle is drawn in a rectangular prism by joining the midpoint of one edge (the width) to the two diagonally opposed corners of the prism, as the in diagram below. If the prism has length L. = 3, width W" = 2 and height [f {, use vectors to calculate the degree measure of the angle { at the apex of the triangle. ) - I o ( Reminder: the
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To celebrate the opening of a new store, when a customer gets to the register, they get to spin a prize wheel that is equally divided into 4 parts. Depending on what part the customer lands on, they win either a 10%, 20%, 30%, or 50% discount on their entire purchase. a) What is the probability that the first customer to win a 50% discount is the

Exercise If A is a real n x n matrix, then we have seen that A:=v A*w defines a bilinear pairing on R" which is symmetric iff A is a symmetric matrix. If A is symmetric, we call A positive definite iff A > 0 for all 0 # v ER" (in other words, A is an inner product on R" ). a) Suppose B is the matrix given by B = 2 and x = [x1 x2]"ER'. Find an
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The data represent the age of world leaders on their day of inauguration. Find the five-number summary, and construct a boxplot for the data. Comment on the shape 69 41 61 48 58 44 55 56 of the distribution. 65 48 52 44 50 62 55 The five-number summary is. . 0 0. 0 Choose the correct boxplot of the data below. O C. O A. O B. Q 60 70 40 50 60 40 50
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1. Consider the differential equation y"' + 6y" + 13y" + 10y = 0. Given the fact that y = e^-2x is a solution of this differential equation, answer the questions below. \f
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22. Convert each of the following base-ten numerals to a numeral in the indicated base: a. 234 in base four b. 1876 in base twelve c. 303 in base three d. 22 in base two als in base ten
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5. GEOMETRY Find the difference in the area of the rectangle and the area of the square. 3 m J m 5m
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Find the zeros (if any)of the rational function.please show me how this is done ? \f
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