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Mathematics Questions and Answers May 07, 2021

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There were 55.5 million people enrolled in Medicare in 2015. In 2009 there were 46.6 million enrolled. Which value best represents the unit rate of change (slope) in millions per year? 3 points a) -1.48 b) 1.48 c) 19.1% d) -0.674

Answer 1c For piers, the measurements are 9'3\"*6"*8\" and 10'4"*6"*8". 121- Steel posts similar to the ones used on the canopy are sold in increments of whole linear feet and cost $6.75 per lineal foot. What would the total cost be for all of the posts? Round up the length to the highest whole feet measurement. Example 7'9\" must be rounded up to
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(a) If z = -1 + jv3, find the integer number a such that arg z (z + a)] = .Fill in the blank below: a (b) Given a complex number z = cos 0 + j sin 0, fill in the blanks below: (i) z" + - cos(n0) (give your answer as integer value) . (ii) cos3 (0) = 23 + 32 + + 7 (correct your answer to 3 decimal places)
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For the general linear regression model, suppose we want to estimate l'B based on sample data, where l is a (k+1)x1 vector of constants. The Gauss Markov theorem tells us the most natural choices is also the best choice in a large class of possible estimators. l'b is an unbiased estimator of l'B. l'b = c0'y where c0'= l'(X'X)-1X' and c0 =

2. A broker pays his salespeople 25 percent of the commission for listing a property and 40 percent of the commission for selling it. If the commission rate is 6 percent and a salesperson received $3,265.28 on a property that he sold, what was the sales price? (Round answer to nearest dollar.)
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Graph the parabola and give its vertex, axis of symmetry, x-intercepts, and y-intercept. y = x^2 + 9x + 18 The vertex is (Type the answer in ordered pair.) \f
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does the totality of the circumstances in due process include the test of coercion and voluntariness or are they separate in the due process approach

Which of the following organizations (not all are real, consider only the name) is most likely to provide the least biased results of a study on the impact of fireworks. Group of answer choices -Organization of 4th of July celebrations -Pet lover's organizations -Hospital ER organization -State government organization -Firework manufacturing

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2. A bacteria population is modeled by the equation p(h) = 10,000 . 2", where h is the number of hours since the population was measured. About how long will it take for the population to reach 100,000? Explain your reasoning. 3. Complete the table. X -2 0 w/ - 10 10.000 1,000 100 1,000 1,000,000,000
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A professor wants to know if there is a preference among different instructional time slots. She asks 60 students what their preferred time slot is. Is there evidence to suggest that there is a preference among the time slots? Test at= .01. Time Slot 8-10am10-12pm12-2pm2-4pm4-6pm6-8pm Observed 5 16 18 9 5 7

Two cards are drawn from a deck of cards without replacement of the first one. Find the probability of selecting two red cards.

7. Complete the following table Population | Growth Rate, &| Doubling Time, T Rwanda 2.4% per year Brazil 63 years India 1.4% per year Finland 0.2% per year Egypt 38.5 years Philippines 36.5 years USA 0.0%% per Year Japan 69.3 years Ireland 1 2% per year Kenya 2.6% per year
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Answer the following 3) At x= 3, the function given by f(* ) = 1 6 _9, x2 is 3 A undefined B continuous but not differentiable C differentiable but not continuous D neither continuous nor differentiable E both continuous and differentiable
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a radio transmission tower is 120 feet tall. a guy wire is to be attached 8 feet from the top and is to make of 23 degree with the ground. how long should the guy wire be to the nearest tenth of a foot

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The information that you will need for the discussion can be found in Case 17c, pp. 181-182, Case 10, p. 166; and Case 12a, p. 63 of Thinking Critically About Ethical Issues. As in all cases for this course, you must identify the parties and the moral issue(s) posed by religious belief. Identify common ground. You may draw on any moral concepts

Question 10 of 11, Step 1 of 2 11/18 Correct 0 Consider the following quadratic equation: 8x2 - 29x - 15 = -3 Step 1 of 2: Using the standard form ax2 + bx + c = 0 of the given quadratic equation, factor the left hand side of the equation into two linear factors. Keyp Answer Keyboard Short = 0
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Eres parte del equipo de psiclogos de la empresa y te piden disear una batera para un puesto especfico de nueva creacin, Qu informacin solicitars para integrar la batera de pruebas para evaluar a los candidatos a dicho puesto? 1. Valuacin del puesto 2. Perfil de puesto 3. Edad del candidato 4. Descripcin de funciones 5. Gente a cargo 6.

(a) Estimate the area under the graph of the functionf(x)=1 x+3 fromx=0 tox=4 using a Riemann sum withn=10 subintervals and right endpoints. Round your answer to four decimal places. area= (b) Estimate the area under the graph of the functionf(x)=1 x+3 fromx=0 tox=4 using a Riemann sum withn=10 subintervals and left endpoints. Round your answer to

When dealing SIX cards from a standard deck of cards, what is the probability you get six cards that have hearts on them? Numerator = Denominator = Decimal rounded to one non-zero digit = (Please enter decimal with the leading zero.0._____)

B. Que porcentaje de las empleadas sufriran el riesgo de infarto en los proximos diez anos
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I need help, thanks. 3. Consider the function f(x) = x3 3x + 2 on the interval [2.2]. Find all numbers c that satisfy the conclusion ofthe Mean Value Theorem. [20] 4. Letx) = 5W6 x 3] Find the intervals of increase or decrease b] Find the local maxima and minima values 0) Find the intervals of concavityr and the coordinates of the inflection points
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Which of the following inequalities is shown in the graph? 10 5 -10 5 5 10 Ops- -x+5 2 5 - x+5 Oys5x+ O X +5
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Let F2 denote the field with two elements. Find the number of 2 x 2 upper triangular matrices A E F, such that A? = 12, where 12 is the 2 x 2 identity matrix
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First order Linear differential equation Direction : Solve the general solution of the following differential equation using first order linear equation method . Complete the table below by writing the answer in the reply box below . Use the format below in answering : A: Integrating factor Differential Equations
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Mitchel has almost 4,000 students imagine Dr brewer wants to get to know the students. He proposes to meet for lunch with a group of 4 at a time. Is it possible for him to have lunch with all the students

2. Prepare a skeletal prot and loss statement showing dollars and percentages for a department showing the following values: (5 pts.) Purchases $90,000 Alteration &workshop Charges 2,400 Cash discounts 1,800 Freight in 3,000 Direct expenses 37,000 Customer returns 9,000 Indirect expenses 30,000 Gross sales 180,000
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Bicing es una iniciativa en ___Blank. multiple choice 1 Barcelona Buenos Aires Hay iniciativas similares en otras ciudades ___Blank. multiple choice 2 espaolas espaolas y europeas Ecobici es un programa para ___Blank bicicletas. multiple choice 3 alquilar comprar En el D.F. (La Ciudad de Mxico) hay ___Blank carriles para las bicicletas. multiple

A restaurant has a main location and a traveling food truck. The first matrix A shows the number of managers and associates employed. The second matrix B shows the average annual cost of salary and benefits? (in thousands of? dollars). Complete parts? (a) through? (c) below. \f
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Let's say Supplier A offers the product for $x each and charges $y for shipping, while Supplier B offers the product for $a each and charges $b for shipping. If you're ordering n items, the total cost from Supplier A would be nx + y, and the total cost from Supplier B would be na + b. why do you use n

Answer the next three questions in the space provided, keep your answers succinct. 2. For those media you marked as selective, what characteristic/type of bacteria are the selective for? (1 point)
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(a) Write a nonrecursive formula for the n term of the arithmetic sequence d, based on the given information. a, = 1, d=4 X Part: 1 / 2 Part 2 of 2 (b) Find a43 . X =
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Problem 1 (10%) The wedge has a negligible weight and a coefficient of NO NO static friction # = 0.35 with all contacting surfaces. Determine the largest angle 0 so that is "self-locking." This requires no slipping for any magnitude of the force P applied to the joint
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Letf(x)=3x+2andg(x)=4x2+3x. After simplifying, (fg)(x)?

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Need help.. 2: Give the terms up to (and including) the 1:3 term for the Maolaurin series expansion of the function below. Then give the remainder term. For a 5 point bonus, give a bound on the absolute error of the polynomial on the interval [15, .75]. cosm- 1+1: 9(1)?) =
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Question 4. For this question, you will be using a CSV file with the filename bikes.csv. The CSV file contains 66 entries recording the number of users of the Capital Bikeshare bicycle-sharing system based in Washington D.C., USA, with 33 samples from the year 2011 and 33 from the year 2012. Each row includes the year, month and date of the
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9. a voter casts a ballot counter to their actual preference for strategic purposes, what type of voting is this If a o A. Illegal Voting B. Quota Voting O C. Insincere Voting O D. Condorcet Voting Submit answer Answers (in progress) Report technical issue Email instructor Answer Score 02 Previous
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Germany 733,000,000 80,523,700 Iran 583,000,000 76,876,000 South Korea 576,000,000 50,219,669 Indonesia 535,000,000 237,641,326 Canada 528,000,000 35,141,542 Find the median per-capita emissions among the top 10 nations. (round to the hundredths place)
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What's the answer? Question 19 of 20 1.0 Points For what value of k does the matrix have no inverse? k OAO OB. 2 15 2 Oc. 15 15 OD. -2 OE. 15 2 Reset Selection
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Question 4 3 pts Given that A ABC ~ ADFE, , find the value of x. Round to the hundredth's place, if F 7 B 15 X needed. D 18 C 21 m A
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Solve each system by elimination 15X -- 2y = --48 2x + = 23
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please help me with these problems Writing Equations of Lines. Show all work and mathematical thinking. 13. Write the equation of the line that has a slope of -5 and goes through the point (0, 11). 14. Write an equation of the line that is parallel to the 15. Write the equation of the line that goes through line y = =x + 6 that goes through
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9 45.When testing for the significance of the difference between sample means with small samples, the proper sampling distribution is

Find f ( a ), f ( a + h ),and the difference quotient f ( a + h ) f ( a ) h ,where h 0. f ( x ) =5 x/x 3 f ( a )= f ( a + h )= f ( a + h ) f ( a )/ h=

One of the weaknesses that experts have is that they: Bookmark this question A) must rely on assumptions. B) are less highly educated than lawyers. C) worry about facts they do not know. D) A, B, and C are correct. E) A and C are correct

True or False? In stratified sampling, the population is split into non-overlapping groups or strata (e.g., men and women; people under 30 years of age and people 30 years of age and older) and then sample within each strata.

heck given below. nd L. of F and L. sing set notation (in roster form). X

TD bank's quote for MXN is $0.0643- 48. When travelling to Mexico, you want to convert your 1500 CAD into MXN. Calculate the amount of Pesos you will receive. MXN 97.20 MXN 23,328 MXN 24,651 MXN 23,148

Interpret the following factor analysis data collected by researchers planning to start a nonprofit organization to sponsor college students. correlations among some NPO survey items Q5 Q11 Q9 Q10 Q5= Higher education is very important 1 .00 Q11= I would help a sponsor a kid .93 1 .00 Q9= only very privileged .48 .52 1 .00 Q10 higher ed is too

calculate 200ml/4hr and round to nearest whole number

I'd like help with this problem: 2. Assume that dx1 dt = x1 (5 - 21 -2x2) dx2 dt = X2 5 - 2 1 - X2). (a) Graph the zero isoclines. (b) Show that (5/3, 5/3) is an equilibrium and use the analytical ap- proach to determine its stability
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1.View the video below. https://youtu.be/mLIuHU5Sj5w What sort of sets do you find naturally occur in your field of study (social math MG1107)?

When using and ORDER BY query, "A 1" will show up ________ "A1". Group of answer choices mixed in with before after before and after

a researcher wishes to estimate with 95 percent confidence , the population porpotion of adultswho su[pport labeling legislation for genetically modified organisms. Her estimate must be accurate within 6 percent of the true proportion. a0 no perliminary estimate is available. Find the minimumsample size needed.b)FInd the minimum sample size needed

dynamics review assessment using vector components determine the sum of the vectors

arith invert pass Function Stim File Logical And, A & B alu_and.v Logical Pass alu_pass.v Logical, Negate, A' & B alu_nand.v Logical Pass, A' alu_Inpass.v HBOO BOO Arithmetic Sum, A+B alu_add.v Arithmetic Pass alu_apass.v Arithmetic Sum, Negate, -A + B alu_nadd.v 2's Complement alu_twos.v
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Need to find left critical value for the F-distribution, degrees of freedom have already been switched. = .10 DFN = 10 DFD = 12 Thanks

(Q10) Triangle NMO has vertices at N(5, 2), M(2, 1), O(3 , 3). Determine the vertices of image NMO if the preimage is reflected over x = 4. Options: A-N(3, 2), M(6, 1), O(5, 3) B- N(5, 6), M(2, 5), O(3, 7) C- N(5, 2), M(2, 3), O(3, 1) D- N(4, 2), M(1, 1), O(2, 3)

(1 point) An outdoor playing field has the shape of a rectangle with semicircles at each end as in the diagram below. The total perimeter of the field is 800 metres. Express the total area of the playing field as a function of the radius, r, of one of the semicircles
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11. Patterns and Games: Making a Comparison (1 mark) A student makes the following statement: \"The word MATHEMATICS compares to the word SEAT as the number 12345123678 compares to the number \" The 4 digit number that completes the statement is
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NHST is a dominate method for testing theories using statistics (Field, 2017). Field mentions three common misconceptions about what a statically significant result allows you to conclude. Describe these three misconceptions and discuss a situation in which each of these misconceptions might lead to false results. Field doesn't like NHST (Null

Let X1, . . . , Xn be independent Poisson() random variables. \f
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Forum 2: Rational expressions Objective of the activity Through this activity the knowledge learned during the module will be evaluated. Instructions After reading the resources and doing the practice exercises, explain: What is the relationship between factoring and rational expressions? They must publish their direct message to the platform (do

Let V= 3 and T L(V) has eigenvalues 2 and 3. Suppose that there is a basis of V such that the matrix of T with respect to this basis is M(T) OoWO
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Is it? Eighth grade I.2 Identify rational and irrational numbers Is 83.07 an irrational number? yes no
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5. Prove or disprove this assertion: Let x) be a. continuous function; let C = {x}: x ? 0}. Then C is closed. (Hint: In R1, look at f (x) = l/(l + x} for x ,2 0.)
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Respond to at least two of your classmates' posts by Day 7. Each response to your peers should be at least 150 words. Make your replies meaningfulfind an error, expand a problem, ask a question, and resolve the problem or part of the problem to verify their solution. Problem 1 Is 1/4 the solution to 8x-2=0? 8(1/4)-2= 2-2=0 The answer is YES

Chapter 2, Problem 9 Find a statespace equation to describe the circuit shown in Figure 2.19. Find also its transfer function
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With simple regression, if we want to know the proportion of variation in the dependent variable that is explained by its relationship with the independent variable, the best statistic to look for is the slope the correlation coefficient r-squared the constant

Linear Algebra Diagonalize the matrix below. Its eigenvalues are A1 = 5 and 12 = 4. You may use Symbolab to find P- but do the rest of the work by hand. O 2 2
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Hillary is custom building frames for a set of familty photos. She has designed two similar rectangular frames, RSTU and VWYX. The diagram shows the two different sized frames, where WY = 12 inches (in.), VW = (3d+11) in., ST = 16 in., and RS = (8d-4) in. 1. What is the value of d? 2. What is the area of RSTU? Include units. 3. What is the

Pls solve 5] AABC~AXYZ. Find the missing side z and the missing angle d. Remember to match up corresponding sides. Either set up a proportion or list the scale factor used. Y B 37' Z 25 m 8 m 10 m d -53 A 6m C X 15 m Z O 23 3.2 20 10 DELL
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Question 11 Which of the following is a biconditional of this statement below? All pentagons have 5 sides. a A polygon is a pentagon if and only if it has 5 sides. If and only if a polygon has 5 sides, then it is a pentagon, C If a polygon has 5 sides, then it is a pentagon d A hexagon has 5 sides
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Question 6 2 pts D 1 0 Details The lengths of your statistics class has a continuous uniform distribution between 47 minutes and 58 minutes. Let X be the length of a class in minutes. If one section is randomly selected, answer the following questions a. What is the distribution of X? X - [? v Please show the following answers to 4 decimal places.
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Suppose x is a uniform random variable with a = 20 and b = 80. Find the probability that a randomly selected observation is between 23 and 75.

Paso 1. Varios estudiantes hispanos van a hablar acerca de opens in a dialog los deportes que practican y de por qu los practican. Primero, revise el Vocabulario til. Luego, escuche la narracin y escriba el deporte o los deportes que cada estudiante practica. Despus, escuche otra vez opens in a dialog y escriba la razn por la cual opens in a

Consider the following ordered data. 477899101112 (a) Find the low, Q 1 , median, Q 3 , and high. low Q 1 median Q 3 high (b) Find the interquartile range. (c) Make a box-and-whisker plot.

The graph below shows suggested percentage ranges for various necessary budget items. Construct a basic budget based on what you might think is a reasonable disposable income from #2. Use 'Google Sheets' and include the categories shown in the pie graph; you may choose a percentage within the range given for each category, but remember the

1.Exercise#9 - Exercise #9 Find the characteristic polynomial of the matrix below, using a cofactor expansion or the special formula for 3 x 3 determinants described in the class
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2 pointsA loan reached maturity with an amount of $ 150000 at rate of 4\% at a period from April 1 to May 15. what is the principle amount ?( Be sure to include two decimal places

Use the Laplace transform to solve the initial-value problem x +4x=f(t), x(0)=0, x(0)=0, where 0 if t <5 f(t) = 3sin(t5) if t5.

Kelly worked on a straight 11% commission. Her friend worked on a salary of $950 plus a 6% commission. In a particular month, they both sold $29,200 worth of merchandise. Step 1 of 2 : How much did Kelly earn for this month? Follow the problem-solving process and round your answer to the nearest cent, if necessary

Moving to another question will save this response. Question 14 What is the maturity value of $17,000 invested at 5.0% compounded quarterly for five years? $21,794.63 $21,974.63 $21,875.63 $21,864.63 O $20,794.63 A Moving to another question will save this response
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enal / Quiz 9 Write the slope-intercept form of the equation for the graph
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Suppose Robert goes on a trip to visit a friend who lives 18 miles away from Robert. Let S(t) be Robert's distance from home in miles, t hours after the trip starts. Robert arrives at the friend's house after 7 hours, and stays at the friend's house for 3 hours before returning home. S(7) represents The time when Robert is 7 miles from home

Write an application problem whose solution depends on solving the equation 5x + 2 = 12. What is the difference between interest and interest rate?

What is the relationship between the Shannon entropy and the information in a distribution in maximum entropy without explicit constraints? Select one: a. The Shannon entropy is the inverse of the information in a distribution b. The Shannon entropy is the information in a distribution c. The Shannon entropy is maximized when the information in a

Let A. B. and C be sets. Show that a) (A- B) - CCA- C. b) (A- C) n (C - B) = 0
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best group sizes for student groups is 4 or 5. I usually choose 5, and would create groups as follows for a class of 20 students, with 4 groups. (That is, I would assign groups by skipping 4 in the class list). Students in class: A, B, C, D, E, F, G, H, I, J, K , L, M, N, O, P, Q, R, S, T. Group 1: A, E, I, M, Q. Group 2: B, F, J, N, R. Group 3:

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What proportion of 18- to 44-year-old Americans have never been tested for HIV? Hint: using the values in the 18-44 cells, this would be calculated as p (NT) / ( p (NT) + p (T)), where p is probability. Show your work.

A law student, who wants to check a professor's claim that convicted embezzlers spend on the average 12.8 months in jail, takes a random sample of 60 such cases from court files. Assume =3.5 months. In order to test this claim, the null and alternative hypotheses are:

How many ways can3 cars and 2 trucks be selected from 7 cars and 9 trucks to be tested for a safety inspection?

Approximately 10.3% of American high school students drop-out of school before graduation. If we choose 10 students entering high school at random, write the mathematical statements and find the probability for each of the following. No more than 2 will drop out

Marie, a bowler, has a sample game score mean of 129.2 from 24 games. Marie still claims that her average game score is143, and the low average can be attributed to chance. At the5% significance level, does the data provide sufficient evidence to conclude that Marie's mean game score is less than143? Given the sample data below, accept or reject

An advertisement for a popular weight-loss clinic suggests that participants in its new diet program lose, on average, more than 10 pounds. A consumer activist decides to test the authenticity of the claim. She follows the progress of 18 women who recently joined the weight-reduction program. She calculates the mean weight loss of these

(i) Find the point-norm equation for the plane passing through the points (3, 1, -2) , (-1, 2, 4) and (2, -1, 1) . (ii) Find a parametric representation for the plane in (i). (iii) Find the point-norm equation for the plane passing through the points (2,2,2), (-1,2,4) and (2,-1,1) . (iv) Find a parametric representation for the normal line to the

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