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Mathematics Questions and Answers March 20, 2021

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Evaluate each integral. (Clearly state substitution, when appropriate) \f
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4 (5 points) Title:AlgwFin-U4-Test-Std8-20 Your payment is $350 per month for 36 months and you made a $3,000 down payment. What is your total cost of leasing? a $12,600 b $12,900 c $9,600 d $15,600

For each n 1 , let { X n , j , j 1 } be a sequence of independent random variables. Then s u p j 1 X n , j 0 in probability as n iff > 0 , j = 1 P ( X n , j > ) 0 as n .

Point ? is the centroid of A??? . Find ?? and?? . (Se 7. ?? = 5 A E D
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Ture, false or not sure? Why A. A continuous uniform random variable has a constant probability density function everywhere within the range of values the random variable can take. B.The probability that a random variable lies between a pair of values is the area under the probability density function to the left of the two values. C.The total

An experimenter flips a coin 100 times and gets 34 heads. Test the claim that the coin is fair against the two-sided claim that it is not fair at the level =.01.

The minimum point-value required for admission to the examination is: 4000 verified points 2000 verified points 1500 verified points 1200 verified points

An accounting firm is planning for the next tax preparation season. From last year's returns, the firm collects a systematic random sample of 100 filings. The average tax preparation time is 90 minutes with a standard deviation of 140 minutes. What is the probability that the mean completion time will be less than 120 minutes?

Refer to the data below, Apply the 2-means algorithm (i.e. with 2 clusters) to identify two segments in the customer base shown below. Use customers b and d as initial means for the two clusters. Describe each step, and show all relevant calculations (Hint: you don't necessarily need to use calculators to compute the distances. You only need to
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Paul and Jeff are working together on a class assignment. After Paul explains to Jeff the details of the project, Jeff has a confused look on his face. This prompts Paul to ask Jeff what he is confused about and Jeff explains where he got lost. What is Paul and Jeff using in the turn taking process to let each other know when to speak

18 (5 points) Title:AlgwFin-U8-Test-Std17-53 You are renting an apartment for $1,250 per month. The expected rent increase for your area is 2% per year. What will your predicted rent be in 8 years? Use the following formula: Y = a (1 + r)t a $1,465 b $1,275 c $1,650 d $2,000

Snowy's Snow Cones has a special bubble gum snow cone on sale. The cone is a regular snow cone that has a spherical piece of bubble gum nested at the bottom of the cone. The radius of the snow cone is 2 inches, and the height of the cone is 3 inches. If the diameter of the bubble gum is 0.5 inches, which of the following can be used to calculate

2. {ti points} You are at the point p = {11!}. arctan{2]] on a hill 1with elevation function H[.1:. y] = arctanz + y]. The positive Iaxis indicates eastI and the positive ydirection indicates north. [a] Sketch some level curves of H. In your sketch, indicate {1,0} and draw 'E'H, [1). [h] Starting from p. in what direction should you 1walk in order
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(a) Write the following ellipse in standard form. Sketch a graph and label the center, each focus (there are two foci), and each vertex (there are two vertices). (Please get the noun endings right.) Also find the lengths of the major and minor axes and the eccentricity. 16x2+ 25y2 64x+ 150y + 279=0 (10 marks)
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Assume that all variables are implicit functions of time t. Find the indicated rate. dy dx =5 when x =6 and y = - 2; find dt 2 X + 3y ,2 + 2y = 44; dt
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2 points Time Remaining 1 hour 26 minutes 21 seconds01:26:21 Item 26 Time Remaining 1 hour 26 minutes 21 seconds01:26:21 When each bidder in an auction knows what the item is worth to that bidder, but does not know the valuations of other bidders, the auction exhibits Multiple Choice perfect information. partially private values. private values.

A vertical pole, of heightb, casts a shadow onto the ground. The angle of elevation from the tip of the shadow on the ground to the top of the pole is=30, and the distance between the top of the pole and the tip of the shadowis95feet.Use the dimensions given to find the heightb, in feet, of the pole. Do not include the units in your answer. Type

Selecciona la opcin que demuestra el uso correcto de las letras maysculas. En el 1998, la autoridad de acueductos y alcantarillados se privatiz y cambi su nombre por el de la compaa de aguas. En el 1998, la Autoridad de Acueductos y Alcantarillados se privatiz y cambi su nombre por el de la Compaa de Aguas. En el 1998, la autoridad de acueductos y

Determine gcd(5675, 11055) fundamentals of info security

Please answer them all. Thanks 1. The table below contains a training dataset of 6 observations, 3 predictors and 1 qualitative outcome variable. Suppose we wish to use this data set to make a prediction for Y when X1: X2 : X3 = 1 using K-nearest neighbors. (2 pts) Obs. ' X1 X2 X3 Y 1 0 2 2 Orange 2 2 1 2 White 3 0 0 0 White 4 0 1 1 Black 5 0 1 2
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Assume that women's weights are normally distributed with a mean given by=143lb and a standard deviation given by =29lb. (a) If 1 woman is randomly selected, find the probabity that her weight is above175 (b) If4 women are randomly selected, find the probability that they have a mean weight above175 (c) If74 women are randomly selected, find the

If Ax = b has more than one solution for a vector b, then the columns of A must be linearly independent. If A has linearly dependent columns, then the columns of A must span Rn

Use the Standard Normal Distribution table to find P(Z 0.96).

Q1 Span 1 Point Which is equal to the span of the set O A circle O A parallelepiped O r + S + t for all numbers r, s, t 3 5 r + S + t for all nonzero numbers r, s, t Save AnswerQ10 Basis for 3-space 1 Point Which set below is a basis for \\E; . {H H H} H H H H H H Save Answer ) { \"{ { 0 2 3 6 '3 3 0 2 f) 0 1 0 Q11 Standard Basis 1 Point Is the
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Please explain how to solve. 3.(20pts) Let X1, ..., Xn be a random sample from the truncated exponential distribution with pdf: f(x) = exp(-(x - 0)), if x 2 0 and f(x) = 0 if x
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I needed help with this problem. Thank you! The following is a scatter plot of the selling price (in dollars) of a house versus the living space (in square feet). (If you cannot see the image, navigate to the Google Drive folder & and view the image Final-Q21.png. Selling Price 500000 450000 400000 350000 300000 250000 200000 1000 1500 2000 2500
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1. An integrated petroleum company is considering expansion of its one unloading facility at its Australian refinery. Due to random variations in weather, loading delays, and other factors, ships arriving at the refinery to unload crude oil arrive according to the exponential distribution with an average arrival rate of 8 ships per week. Service

1)Randomly picking a team of 3 people from a group of 10. State the arrangements. IS this a permutation or combinarion?

The textbook shows [see equation (13.43)] that when considering only close encounters, the relaxation time of a stellar cluster with mass M, radius R, and made up of N stars each of mass m is given by t_rel = (v^3R^3) / (3G^2mM). Use the virial theorem to show that the relaxation time is t_rel (NR) / v , where we have used the sign to indicate

55. Like a turbocharger, any dirt in the intake air can destroy the unit. The ________ system must be checked for leaks and the filter changed on a regular basis? A. Exhaust. B. Induction. C. Ignition. D. All the answers are correct

Two vertical posts stand side by side. One post is 8 feet tall and the other is 17 feet tall. If a 24-foot wire is stretched between the tops of the posts, how far apart are the posts

Find the20% trimmed mean of the following data. If necessary, round to one more decimal place than the largest number of decimal places given in the data. 29,33,35,39,41,41,41,41,44,44 46,47,47,50,50,52,52,55,56,59

During each meeting at work, Stanley always attempts one sudoku puzzle. The probability that he finishes a puzzle during any given meeting is 0.29. Assume that how Stanley performs on a puzzle is independent from meeting to meeting. Over the next 9 meetings, if Stanley finishes more than 2 puzzles, find the probability that he finished less than 4

The perimeter of a quadrilateral (four- sided polygon) is 50 inches. The longest side is three times as long as the shortest side. The other two sides are equally long and are 4 inches longer than the shortest side. Find the length of all four sides

1. Find the distance between the line through the points (1, 0, 1) and (1, 1, 0) and the line through the points (3, 1, 1) and (4, 5, 2).

You are going to take advantage of the Christmas holidays to finish watching seven favorite series on Netflix. His plan is to suck up and watch a series every day. How many different ways can you organize in a week to see the seven series?

The standard deviation of test scores on a certain achievement test is 10.6 . A random sample of 50 scores on this test had a mean of 74.2 . Based on this sample, find a 90% confidence interval for the true mean of all scores. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers

Consider an airport runway for arrivals only. Arriving aircraft join a single queue for the runway, where the service time is exponentially distributed with a rate of 27 arrivals per hours and the number of aircraft arrivals is following a Poisson distribution with the rate of 3 arrivals every 10 minutes. Calculate W, L, Wq, Lq, ?

Expand on the menu:Cost Analysis: | Recipe | Ingredient | Cost | |--------|------------|------| | Mexican Chicken Fajitas | Chicken breast ($4), bell peppers ($1), onions ($1), tortillas ($1), lime ($0.5) | $7.5 | | Italian Pasta Primavera | Pasta ($1), bell peppers ($1), zucchini ($1), tomatoes ($1), garlic ($0.5), olive oil ($1) | $5.5 | |

3. Graph the following exponential function. Show work in how you find the y intercept, talk about the end behavior, and state if it is a growth or decay function. y=5(0.8)""'3
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Find the probability of the following three events for a fair coin; to show your work, first write down each problem in math form, then compute using the nCr and x y keys on your calculator, (a)Equal numbers of head and tails in two tosses; (b) Equal numbers of heads and tails in eight tosses; (c) Equal numbers of heads and tails in sixteen tosses;

There are n houses on a street that goes in the west-east direction. The locations of the houses are given as an array X = [x1, x2, ..., xn], where the ith house is xi yards east of the start of the street. We want to install fire hydrants to this street, such that all houses will be at most d yards away from at least one hydrant. We would like to

5. The spectral density of a stationary time series { Xt} is defined on [-1/2, 1/2] by f(X) = 5 for 1/6
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please help this is my last attempt to get this question right Compute the Taylor polynomial of degree n about a and compare the value of the approximation with the value of the function at the given point x. f(x) = Vx, a= 1, n= 3, x=2 The Taylor polynomial of degree 3, P3(x) = 23
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A full cylindrical water tank has a height of 11.4 feet and a base with a radius of 2.3 feet. The tank is leaking water at a rate of 13 cubic feet per hour. After how many hours will the volume of water be reduced by half? Round your answer to the nearest tenth of a unit. After 14.6 hours the water volume will be half the original volume. O After

If the standard error of the sampling distribution of the sample proportion is 0.02049 for samples of size 500, then the population proportion must be either: A.0.5 or 0.5 B.0.3 or 0.7 C.0.2 or 0.8 D.0.6 or 0.4

On three rolls of a single die, you will lose $18 if a 4 turns up at least once, and you will win $6 otherwise. What is the expected value of the game? Let X be the random variable for the amount won on a single play of this game. E(X) dollars

A researcher wants to estimate the proportion of depressed individuals taking a new anti-depressant drug who find relief. A random sample of 200 individuals who had been taking the drug is questioned; 166 of them found relief from depression. Based upon this, compute a 99% confidence interval for the proportion of all depressed individuals taking

Which of the following is an example of a quantitative description of something? Group of answer choices The volume of the red ball is higher than that of the blue ball None of these are quantitative The volume of the blue ball is around 3-4 cm3 The volume of the red ball is 3 cm3

Observation A B 1 791.9 801.8 2 790.4 798.6 3 791.2 800.4 4 793.2 801.8 5 793.9 798.0 6 792.5 799.1 With 99% confidence interval about the population mean difference. Device A minus device B. The confidence interval is = (____) (_____)

Let F~ (x, y, z) = 2x ~i z ~j + y ~k, and let S be the lateral surface area of the cylinder y 2 + z 2 = 1 with 0 x 2. a)Find an appropriate parameterization for S. b) Evaluate S F~ dS~. Give S an outer normal.

Given that RST XYZ , m R = (3 b 20) , m Y = 40 , and m Z = 45 . What is the value of b

Here are two different samples drawn from two different populations. Which sample satisfies the normal condition for constructing a t interval? \f
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Take the function=++++++. Compute that ( + ) is a kernel with corresponding co-kernel

I have trouble with this question: Evaluate the double integral (integral)(integral)R (3x-y)dA, where R is the region in the first quadrant enclosed by the circle x 2 + y 2 = 9 and the lines x=0, by changing to polar coordinates.

Si el cambio en la tesorera total es de -5.000 $, la tesorera procedente de la financiacin es de +30.000 $ y la tesorera procedente de la inversin es de -75.000 $, a cunto asciende la tesorera procedente de las operaciones

How many different phone numbers are possible in the area code 503, if the first number cannot start with a 0 or 1?

Which of the following defines a typeface? O Contains the name of the publisher, family, weight, posture and width Contains all capital letterforms, of consistent posture and O width O A capital letter form using different weights and widths O A member of a complete set of letters, numbers and punctuation symbols

What is fema? How does is help determine a quality system

Suppose lower taxes on businesses cause an increases in spending on plant and equipment. How will this affect the aggregate expenditure (AE) and the aggregate demand (AD) schedules? Question 40 options: a) AE shifts up; AD shifts to the left b) AE shifts down; AD shifts to the left c) AE shifts up; AD shifts to the right d) AE shifts down; AD

1. Which of the following best describes growth and nutrition in the 12-month-old? A. Usual weight gain is 4 pounds per month starting at 12 months. B. Infants should be introduced to peanuts at this age. C. Height growth accelerates during this period. D. Most infants have transitioned to 3 meals with two snacks

1.) A sample of n =16 observations is drawn from a normal population with mean = 1000 and standard deviation = 200. Find the following: a.) P(Xbar > 1050) b.) P(Xbar < 960) c.) P(Xbar > 1100) 2.) The number of pizzas consumed per month by university students is normally distributed with a mean of 10 and a standard deviation of 3. a. What

Many students have often asked questions such as: Why do I need to learn Mathematics? Where and when am I going to use it in my life? Now that you are almost done with this College Algebra class, can you now explain why it is important for everyone to learn Mathematics? Can you also give examples on when, where, and how you have used and are using
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Joaquin's Costa Quantity Demanded Quantity Supplied
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I need some help on some calc problems any help at all is appreciated. I will make sure to leave a thumbs up and follow if you're correct. Thanks for your time. 9. [-/7.69 Points] DETAILS LARCALCET7 10.6.058. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the integration capabilities of a graphing utility to approximate, to two decimal places, the
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Gerry Statesman, a politician, wants to know how recent events have affected the public's opinion of him. In a recent poll, 125 out of the 310 people surveyed approved of his job performance. In a similar poll several months ago, 47% of 355 people approved. By how much has his approval dropped

30. Solve the following systems of linear equations by working on corresponding augmented matrices: (i) 122+43=2 2132+53=3 3142+63=7 (ii) 1+ 2+ 33=1 21+32 3=3 51+72+ 3=7 6 (iii) 1+ 2+3=2 1+ 22 =1 1 3 =1

How would you find the electricity costs at $0.13 per kWh of running the electricity all year?

Assume that random guesses are made for eight multiple choice questions on an SAT test, so that there are n=8, each with a probability of success (correct) given by p=0.6. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer then 4.

The functions below have all been discussed in this unit. Match the ones that are inverses of one another. square root Question Blank 1 of 4 quadratic cube root Question Blank 2 of 4 cubic Question Blank 3 of 4 y = mx + b (m does not equal 0) no inverse function Question Blank 4 of 4 periodic

The graph of a function f is given. Use the graph to find each of the following. a. The numbers, if any, at which f has a relative maximum. What are these relative maxima? b. The numbers, if any, at which f has a relative minimum. What are these relative minima? -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 x y A coordinate system

30. In the SMALL function, the first argument, array, is a. a formula c. a range of cells b. the desired ranking d. a time period ANS: C PTS: 1 REF: 117
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Your answer is incorrect. A jazz band has two star players: Hubbard and Mingus. The director can choose to have one or neither, but not both, of them play in a show. In the braces below, list all the possible sets of star players that the director can have play. Write each set in your list in roster form. If there is more than one set in your
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f(x, y) .2 x 50 y 80.5 30 50.3 40 60a. Compute the expected value and the variance for x and y. b. Develop a probability distribution for x y. c. Using the result of part (b), compute E(x y) and Var (x y). d. Compute the covariance and correlation for x and y. Are x and y positively related, negatively related, or unrelated? e. Is the variance of

Transform each graph as specified below. (a) The graph of y = f (x) is shown. Draw the graph of y = 2f (x). (b) The graph of y = g (x) is shown. Draw the graph of y = g (2x). 6- 2- X 5 X 5 2 2 is
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A middle school student has been struggling to pass their math class. Their teacher gives them an assessment to determine what specific skills the student needs in order to be successful. The teacher finds that the student is able to compute with accuracy, but struggles to apply the mathematical concepts to multi-step word problems. The teacher

A new game is being introduced at the Hard Rock Cafe.A ball is spun around a wheel until it comes to rest in one of many spots.Whatever is listed in that spot will be the player's winnings.If the wheel has 11 spots labeled $1, 12 spots labeled $2, and 1 spots labeled $10, how much should a player expect to win on average? Round to the nearest cent.

15) Set up a system of M equations in tw_o variables, and solve: One number is five more than twice another number. Their sum is 38. Find the numbers
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Solve the following differential equations of undetermined coefficients. \f
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Please generate a graph for the table and find out which interval of the data contains: the lowest 25% the upper 75% the middle 50% the upper 50% \f
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\f
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I am using only one message per slide, or a couple of bullet points. why is this a good example. Explain in full detail.

MC 6 Knowledge check ITL 608 For the standard presented here, please answer the question below, selecting the BEST answer. CA CCSS Math 8.F.1 Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output. One key skill that

10 (5 points) Title:AlgwFin-U7-Test-Std12-30 Convert 2 hours to seconds. a 30 seconds b 1,800 seconds c 120 seconds d 7,200 seconds

During an epidemic .. During an epidemic, the number of people who have never had the disease and who are not immune (they are susceptible) decreases exponentially according to the following function, where t is time in days. f(t) = 19,000e-0.04t Find the number of susceptible people at each time. (a) at the beginning of the epidemic (b) after 8
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A farmer has 1000 feet of fence and wishes to enclose a rectangular plot of land. The land borders a river and no fence is required along that side of the rectangular plot. What should be the length of the side parallel to the river in order to enclose the largest possible area?

GU MARKS) i.) Differentiate between leverage and gearing. (2 Marks) it.) Explain how each of the following inventory evaluation methods affect cost of goods sold Last in First Out (LIFO) (2 Marks) First in First Out (FIFO) (2 Marks) Weighted Average Cost Method (2 Marks)
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Check your answer against expectations set by the original question before submitting it as your solution! Familiarize yourself with certain strategies such as using inverse operations, using other formulas, working backward from the goal etc., which can help you solve certain types of math problems more easily . NOTE TUTORS: read the following to
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How would your answer change if the account started with $1,000 instead $150grows with an annual growth rate parameter of 7.5%, compounding continuously. Determine how long it takes the account balance to double

is sin(y) dy=cos(y)+C is the particular solution for the antiderivative. true

What is a random variable? How would you differentiate a discrete from a continuous random variable?

Samira takes part in two charity runs. The probability that she finishes both the run is 0.8. Find the probability that Samira does not finish either of the runs. First run Second run 0.8 finishes finishes 0.8 0.2 does not finish 0.2 0.8 finishes does not finish 0.2 does not finish
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A(n) _[blank]_ is a day set aside for commemoration and celebration, with no work done on that day

An elevator has its operation blocked if its load exceeds 450 kg. Knowing that the weight of an adult is a random variable with normal distribution, the average being 70 kg and the standard deviation equal to 15 kg, calculate the probability of the block occurring in an attempt to carry 6 adults.

Fill in the preterite verb forms. Paola y Liliana 1 of 1 la conversacin de sus padres. (or) Yo 1 of 1 a nadar a las ocho. (comenzar) Yo 1 of 1 con tarjeta de crdito. (pagar) Nosotros no 1 of 1 la pregunta. (entender) Mis amigos 1 of 1 en mi restaurante favorito. (cenar) Eduardo no 1 of 1 a patinar muy bien. (aprender) Mariana 1 of 1 la radio

Find the volume V of the solid below the hyperboloid z=5 square root of 1+x^2+y^2 and above the following region. R= {r,):2 square root of 2 r square root of 15, 0 2} Tha volume is_______?

Can you reword it to where it doesn't seem like I'm coming after Carter and include the fact that its taken 9 months for Therapy, daycare

No explanations needed. Stats questions Find the area of the indicated region under the standard normal curve. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. The area between z = - 1.1 and z = 1.4 under the standard normal curve is (Round to four decimal places as needed.) Find the
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Evaluate the function: f(x)=11+43x a) f(1) b f(2)

o convert the hexadecimal number (3ABC6)_16 to its decimal equivalent, we use the fact that each position in a hexadecimal number represents a power of 16, starting from the rightmost digit. The rightmost digit is 16^0, the next is 16^1, and so on

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