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Mathematics Questions and Answers September 08, 2022

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(a) A footballer has a 50% chance of scoring a penalty kick. Calculate the probability of scoring two out of three shots including the use of the combinatorial formula for the independence case. (b) If the footballer becomes more condent after scoring a goal (his probability of scoring rises to 75%) and less condent (probability falls to 55%)
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In Part 1, you will conduct at least one of the following experiments and record your observations: Run a sweatshirt through the dryer, then put it on over your clothes. Immediately enter a dark room and pull it off quickly. Blow up a balloon and rub it on your head for 30 seconds to one minute. Then, try to attach it to a wall without any

George bought the following amounts of Stock A over the years: (Loss amounts should be indicated with a minus sign.) Date Number of Adjusted Purchased Shares Basis Stock A 11/21/1994 1, 230 $ 29,520 Stock A 3/18/2000 615 11, 070 Stock A 5/22/2009 980 35,280 On October 12, 2020, he sold 1,545 of his shares of Stock A for $38 per share. b. How much
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Solve the system of equations by the substitution method. 15x + 5y = 8 -3x = y+6 . . . Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution is (Type an ordered pair. Simplify your answer.) O B. There are infinitely many solutions; {(x,y) | 15x + 5y =8} or {(x,y) | - 3x =y+ 6}. O C.

I attached the Excel data file in one of the screenshots. Daily Spot Exchange Rate, U.S. Dollars per Pound Sterling Date Rate IAWN. 1-Apr-04 1.8664 2-Apr-04 1.8393 5-Apr-04 1.8140 6-Apr-04 1.8474 7-Apr-04 1.8410 8-Apr-04 1.8425 9-Apr-04 1.8322 12-Apr-04 1.8458 9 13-Apr-04 1.7732 10 14-Apr-04 1.7841 11 15-Apr-04 1.7942 12 16-Apr-04 1.7823 Note:
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KJ 9. In the figure, Which statement is true? (TEKS G. ZA) KL KM (F) ZLMN = ZING G ZIHIK = JIG H /KJHI = ZKML D AKLM = AKIH
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gebruik die kern van volstruisvleis in 'n nuwe sin as

11 A group of students estimated the length of one minute without reference to a watch orclock, and the times(seconds) are listed below. Use a 0.01 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating oneminute? 77 89 45 71 48 33

A state lottery game consists of choosing one card from each of the four suits in a standard deck of playing cards. (There are 13 cards in each suit.) Count the number of elements in the event that an ace, a king, a queen, and a jack are chosen.

Provide 95% confidence interval of the average monthly earnings for each gender. Show the confidence intervals graphically and interpret your answer. You should show the formula and calculation by putting values in the formula. (only asking for females here) Female + male sample is n= 120 Female Information Average monthly earnings = $1223.409091

i am working on this practice i don't know if I'm reading these wrong but here is what I have so far 1. 3 out of 5 2. max of 3 out of 5 3. is this one min of 3 out of 5 4, X1=X2 5. X5 Fill in the blanks. 1. The constraint (x1 + x2 + x3 + x4 + x5 = 3) means that ________ out of the ________ projects must be selected. 2. The constraint (x1 + x2 + x3

Write the slope-intercept equation of the function f whose graph satisfies the given conditions. The graph of f passes through (- 4,7) and is perpendicular to the line that has an x-intercept of 6 and a y-intercept of 12. (= = )
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2) List all possible rational zeros given by the Rational Zeros Theorem (but don't check to see which actually are zeros). (Enter your answers as a comma-separated list.) R ( x ) = 2 x 5 + 9 x 3 + 9 x 2 6 x = 3) A polynomial P is given. P ( x ) = x 4 + 18 x 2 + 81 (a) Find all zeros of P , real and complex. (Enter your answers as a comma-separated

We assume that our computer has a precision only to 2 decimal points. Problem 1. For f(x) = e x+1function below, plot the first three iterations of Newton's method starting at point x = 2. Plot both the function f() in green, the first tangent line in red, the second in blue, and the third in green. You will have one plot for each function. (take

Suppose that you are a senior adviser to the President of the United States (POTUS) who is now refusing the guidance by appointed top healthcare officials regarding the recent findings for a particular medication that is desired for the treatment of an uncontrolled outbreak. What is known, the drug has no efficacy, and has the potential for

4.18 A sample of 500 consumers was selected in a large metropolitan area to study consumer behaviour with the following results(In table Below): a. What is the probability that a randomly chosen female consumer does not enjoy shopping for clothing? b. Suppose the chosen consumer enjoys shopping for clothing. What is the probability that the
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A. Using the data, find the cereal "Cheerios." How many complex carbohydrates does it have per serving? (Hint: Look at the variable "Carbo" in CrunchIt! Or "Total Carbo" in JMP) B. Next, create a pie chart of the "Manufacturer" variable. Make sure to give the pie chart a title. Answer the following questions: a) What does a pie chart tell you
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One card is selected at random from a deck of cards. Determine the probability that the card selected is a card greater than 2 and less than 10

You run a regression analysis on a bivariate set of data (n=119). You obtain the regression equation y= 0.582x + -36.948 with a correlation coefficient of r=0.827 (which is significant at = 0.01 ). You want to predict what value (on average) for the explanatory variable will give you a value of 30 on the response variable. What is the predicted

An association of Christmas tree growers in Indiana sponsored a sample survey of Indiana households to help improve the marketing of Christmas trees. Respondents who had a tree during the holiday season were asked whether the tree was natural or artificial. Respondents were also asked if they lived in an urban area or in a rural area. Of the 410

What are the major products of the following reactions? (10 points) H2. Pdic H' H20 HCI (1 eq) Lindlar's Catalyst HBr (excess) L X
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In rectangular coordinates, (minus9,240degrees) is enter your response here

You are using a spline as a polynomial function to approximate the output curve for a type K thermocouple

Answer the following: 2. Implement a Metropolis algorithm to simulate the one-dimensional Ising model with d = 20 spins. That is, the target distribution is 7(a) x exp d-1 _ Militi , where a = (X1, X2, . .., a) and x; = 11, for all i. Define h(ac) = - d- 1 Cili+1 . (a) Write down the framework of your Metropolis algorithm for this problem. (b) Let
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I have asked and one tutor answered, but not correct, anyone can help? Question:ISDS 361B Consider a basic economic order quantity (EOQ) model with the following characteristics: Item cost: $15 Item selling price: $20 Monthly demand: 500 units (constant) Annual holding cost: $1.35 per unit Cost per order: $18 Order lead time: 5 working days Firm's

Write an equation for a line perpendicular to y=3x+3 and passing through the point (-3,6) Y=

4. Consider daily portions of 3 portions (meals) = 1 day a) How many portions in 300 days

While the student is asking questions relating to Billy, here are the details you can provide: Billy is teething and irritable. He needs medication at 10 AM and at 4 PM as this will help him rest, but if he gets fussy sooner than 10 or 4 he can have Panadol, as long as it is no sooner than 4 hours apart. He is 10 months old and weighs around 8kgs.

In January, Kate took 5 shirts and 2 pair of pants to the cleaners and paid $32. In February, she took 3 shirts, 3 pair of pants, and 1 dress, and paid $40. In March, she took 4 pair of pants and 2 dresses and paid $44. If the prices remain consistent, how much does it cost for each individual item

The height of a rectangular box is 4 times its length, and its width is 6 in more than its length. The volume of the box is 47 in". Use the ALEKS graphing calculator to find the length of the box. Round your answer to two decimal places. In X
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A PERSON TRAVELS A DISTANCE OF 200 MILES IN 10 HOURS. FIND THE SPEED OF THE PERSON ?

Dr. Sandoval showed a clip from which show to illustrate a Game Theory concept: Group of answer choices The Real House Wives of Orange County Law & Order Bachelor Pad Survivor

potatoes have 770 calories = 1 kilogram Mark has a "garden area" of 62 square meters (m^2) and can grow 150 kg = 400 days Given the 62 square meters, how many kg/m^2 is that equal to

I need help ASAP please For what value of A will the following sequence have a lower bound of 2 and upper bound of 16? 51:2 3 (1k = A(1)k + k2
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Please show using shell or disk Find the volume of the solid obtained by rotating the region in the first quadrant bounded by the curves x = 0, y = 1, x = y , about the line y = 1
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A stock's price fluctuations are approximately normally distributed with a mean of $104.50 and a standard deviation of $23.62. You decide to purchase whenever the price reaches its lowest 15% of values. What is the most you would be willing to pay for the stock?

Determine the point on the graph of the unit circle that corresponds to 2 pi . Then findcosine 2 pi andsine 2 pi, and state which functions are undefined for 2 pi

Sketching assignment. The following pages contain several questions involving various types of drawings. Complete ALL questions using a straight edge. Then hand in your work to be graded. Section 1 - Two-Dimensional and 3 dimensional Representations 10. Sketch the top view of each shape. Top side front HOP front side
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A data collection method is described to investigate a difference in means. Determine which data analysis method is more appropriate" Parred data difference in means or difference in means with two separate groups. A teacher is interested in performing a significance test to compare the mean math score of her girl students and the mean math score

Express the derivative dy/dx in terms of x if y = u (1 + u3)4 and u = (3x - 2)2
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The table shows the responses from 103 people when asked if they support a proposal to expand the public library... Question 2 The table shows the responses from 103 people when asked if they support a proposal to expand the public library. Under the Age 55 or Age of 55 Older Total Yes No Total 103 selected is age 55 or older? One person from
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A tour company in a major city has a daily sightseeing trip. Each day, tour officials record the number of people making the trip. The data for a selection of 7 summer days are as follows. 42, 36, 35, 35, 35, 42, 42 Send data to calculator (a) What is the mean of this data set? If your answer is not an integer, round your answer to one decimal
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A random variable Y is said to have a Beta probability distribution with parameters > 0, > 0 if and only if the density function of Y is f(y)={ y^1(1y)^1 /B(,) , 0 y < 1 0 elsewhere Errors in measuring the time of arrival of a wave front from an acoustic source sometimes have an approximate Beta distribution. Suppose that these errors, measured in

I need help on this question D Question 4 12 pts The rate of U.S. per capita sparkling water sales for the period 2007 - 2014 can be modeled by: s (t) =.02(t - 2007)2 - .25 (t - 2007) + 3 gallons per year Where t is the actual year. Approximately how much sparkling water was sold, per capita, between 2010 to 2013
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4. Vuelve a leer la oracin: "productores se unieron para..." Cul es el uso de se unieron en el texto? Responses se reflexivo se reflexivo se recproco se recproco se pasivo se pasivo Question 5 5. Vuelve a leer la frase: "...lo cual asegura que la calidad se mantenga..." Cul es el uso de se mantenga en el texto? Responses se reflexivo se reflexivo

The coastal town of York, Maine has the ability to raise millions of dollars in taxes and revenue from seasonal tourism that they can spend on their school system. In nearby Sanford, Maine the property values are much lower and they don't have extra income from things like parking meters and fees for town services. Because of this, York is able to

This is so stressful need help and explain i submitted my work but it seems to not be right can somebody break it down for m Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change
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Question 18.1 0, 11 Question 18 of 20 A company buys an item at a cost of $17.90 each. If the company's operating expenses are 15% of cost, and a net profit of 7% of cost is desired, find the selling price of one item. The selling price is $ . (Round to the nearest cent.)
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Statistic problem . Assume that 3;,- follows Bz'n(n,;,7r(ac,-)) for 2' = 1, 2, and logit7r(:c,-) = o: + an, where 3:1 = 1 and 332 = 0. Then the likelihood equations for two parameters (0,6) in the model are given by: 1/1 'l' :92 (R17l'($1) + R27l($2)) = 0, 1171111 'l' 11?ng (n1m1($1)+ n2$2($2)) = 0. Using the results, show that the ML estimate of
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Given if a or B then c, given a false B is true what is C

Rewrite each summation using the sigma notation. Do not evaluate the sums: 3+4+5+...+93+94 3+6+9+...+30 9+16+25+36+...+144 3*4+3*9+3*16+...+3*100 121+2%22+3%23+...+47*27 o o0 T o
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Determine the solution of the graph of equation by using a substitution method y = 4x y = x + 18
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Let the sample space be S={1, 2,3, 4, 5,6} Suppose the outcomes or equally likely. Compute the probability of the event E= "an even number." P(E)=____ (Type in integer or a decimal do not round).

Not Secure - webwork.qcc.cuny.edu ITEVIOUS TTODIETIT TTODIETIT LIST Next TODIET (3 points) Use the given graph of the function to find the -values for which f is discontinuous. -6 140 Answer (separate by commas): = Note: You can click on the graph to enlarge the image. Preview My Answers Submit Answers You have attempted this problem 0 times
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Find the area of the region. Use a graphing utility to verify your result. 7 6X . 3 V x + 1 dx Jo
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1)The following data represents the distance from school in miles and the cost of school supplies for one term for seven students. Distance from school(inmiles) Cost of supplies this term(in dollars) 5 1550 13 600 27 1200 18 800 8 1350 22 950 45 1000 2)Which variable should be the dependent variable and which should be the independent

please see below: Differentiate implicitly to find dy dx . Then find the slope of the curve at the given point. 3x2 + 2xy + 3y- + 17y -3=0; (-1,0) dy dx
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Select the correct answer. What should a food handler do to ensure that the sanitizing solution is effective? A. Use equal parts water and sanitizer. B. Check the solution with a test strip. C. Prepare a fresh batch every hour. D. Heat the solution to its boiling point

If X is a normal random variable with a mean of 78 and a standard deviation of 5, find the following probabilities: a) P ( X 78) b) P(X 87) c) P(X 91) d)P( 70 X 77)

Using the properties you've learned, complete each equation and solve for the variable. 5. 8- - 8" = 81 6. 57 - 5 = 53 7 x12 . x _ x12 Please type your answer here. Please type your answer here. Please type your answer he Simplify. 8. (2x y) (4xy -2) 9. -4x(2x2 - 9x) 10. 4y+1 . 41-x 8x^3y -8x^5+ Please type your answer he 11. 5t-2 . 2t-5 12. (3x)
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Can'r figure out why the second answer is wrong? The following data are from a simple random sample. all\" (a) What is the point estimate of the population mean? la? (b) What is the point estimate of the population standard deviation? (Round your answer to one decimal place.) .3
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Determine the domain and range of f (a) = -5x2 + 20x + 1. Enter the solution in interval notation. Domain: help (intervals) Range: help (intervals)
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Please go over questions 1 and 2 1. For this problem, suppose Z is a standard normal variable, N (0,1), and suppose X = 2Z +4. Approximate the following probabilities: (a) Pr(Z2
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A sequence starts 1, -1, . . . 1. Give a rule the sequence could follow and the next 3 terms. 2. Give a different rule the sequence could follow and the next 3 terms

For part 4 (d) to find the monthly payment excluding escrowed taxes and insurance, we can use the provided formula: PMT = P * (r/n) / [1 - (1 + r/n)^(-nt)] Where: P = Loan amount = $141,550 (amount of the mortgage) r = Annual interest rate = 9.5% or 0.095 n = Number of payments per year = 12 (monthly payments) t = Total number of payments = 30

To prepare for this Discussion: Review Chapters 6 and 7 of the Frankfort-Nachmias & Leon-Guerrero text and in Chapter 7, p. 188, consider Hispanic migration and earnings and focus on how different levels of confidence and sample size work together. Review Magnusson's web blog found in the Learning Resources to further your visualization and

9.93 An auditor for a government agency is assigned the task of evaluating reimbursement for consultations with specialists paid by Medicare. The audit is conducted on a sample of 75 of the reimbursements with the following results: In 12 of the consultations, an incorrect amount of reimbursement was provided. The amount of reimbursement was: X =

A statistics professor at a large university hypothesizes that students who take statistics in the morning typically do better than those who take it in the afternoon. He takes a random sample of 36 students who took a morning class and, independently, another random sample of 36 students who took an afternoon class. He finds that the morning

A multiple choice quiz has 5 questions with 4 choices for each question. Determine the probability that a student will get exactly 4 correct by guessing.

Multiple Chol Which one of these is the definition of the compounding of interest? O Compounding is the process of paying equal interest payments on a fixed investment amount over equal periods of time. O Compounding is the payment of interest over multiple years on the original deposit amount only. O Compounding is the process of earning interest

Find the slope of the line through the pair of points left parenthesis six commas, eight right parentheses and left parenthesis negative eight commas, eight right parenthesis, if possible, and (b) based on the slope, indicate whether the line through the points rises from left to right, falls from left to right, is horizontal, or is vertical

A photographer needs a frame for an 5 x 7 inch picture, such that the total area is 80 in2. Calculate the width of the frame. (Note: The frame is the same width all the way around) What quadratic equation would be used when solving this

I'm having a hard time solving this question, can someone help me solve it 1. A researcher is interested in studying the effects of using a dress code in middle schools on students' feelings of safety. Three schools are identified as having roughly the same size, racial composition, income levels, and disciplinary problems. The researcher randomly
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Integers using Algebra (Out of 4 points Simplify the following by collecting like terms. [You cannot solve for x as there is no equals sign. ] 3. a) - 6x + 4x 3.b) 4 (6x) - 2(5x) +1
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Hello, please answer questions (a), (b), and (c). You will NEED a graphing calculator to solve. You have to create matrices. Lisa owns a street-side fruit market that sells apples, bananas, and watermelons. Each fruit is priced per item. The price of each apple is 23 cents higher than the price of each banana. The price of each watermelon is
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Why does going trayless usually increase the amount of time it takes students to get through a meal in a dining hall

Different hotels in a certain area are randomlyselected, and their ratings and prices were obtained online. Usingtechnology, with x representing the ratings and y representingprice, we find that the regression equation has a slope of 120 and ay-intercept of 368. Complete parts(a) and(b) below. a. What is the equation of the regressionline?

X and Y are not independent ! a) X and Y are discrete random variables with P(X = x") = p" and P(Y = y\") = q\" for n = 0,1,2,..., and let Z : X +Y, determine the probability mass function of Z
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A large school district, with 1,000 5 th grade classes in total and 30,000 5 th grade students,wants to know which one of three museums it's fifth graders would like to go to on a class trip.The school district would like to conduct a statistically sound survey to determine which museum is most popular. (a)Describe the population (b)The person in

Which of the following is the negation for the given statement Which of the following is the negation for the given statement? None of the candles are not burning, Answer 2 Points C All of the candles are not burning. A All of the candles are burning. A None of the candles are burning. C Not all of the candles are burning
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Use the following sample information to construct a 98% confidence interval for the difference in the two population means. How to calculate the upper confidence limit? \f
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Two variables are defined, a regression equation is given, and one data point is given. Study = number of hours spent studying for an exam Grade = grade on the exam Grade ^ = 41.5 + 3.5 ( Study ) The data point is a student who studied 10 hours and received an 81 on the exam. (a) Find the predicted value for the data point and compute the

1. Find all horizontal asymptotes of the following function. in - 1 /(z) - gets - 10sin (x) + 2
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The definition a probability is stated as: A measure of the likelihood that an event in the future will happen; it can only assume a value between 0 and 1, inclusive. What is the meaning of 0 and 1.

Determine the total number of favorable outcomes for the specified experiement and divide this number by the total number of possible outcomes. Simplify this fraction, if necessary. Recall that a prime number is a number only divisible by 1 and itself. A composite number is a number that is not prime. 2,3,4

relation between the induced downwash velocity at y = U . 2. A light, single-engine aircraft has a wing area of 15.8 m- and wing span of 9.75 m. It's maximum gross weight is 1110 kg. The wing use an NACA 65-425 airfoil, which has a lift slope of 0.1033 /degree, and zero lift angle of attack of -30 . Assume t = 0.12 . If the airplane cruising at 54
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Please compare the inferential statistics and descriptive statistics. You may include some detailed illustrations to explain the concepts clearly

Historical data collected at the Commonwealth Bank in Sydney revealed that 60% of all customers applying for a certain type of loan are accepted. Suppose that 15 new loan applications are selected at random. aWhat is the probability that at least 12 loans will be accepted? bWhat is the probability that exactly 10 loans will be accepted? ( 1 Mark )

The question, "Do you smoke?" was asked of 120 people. Results are shown in the table. Male 22 Yes 45 No 67 Total Female 15 Yes 38 No 53 total Total 37 69 120 What is the probability of a randomly selected individual being a male who smokes? What is the probability of a randomly selected individual being a male? What is the probability of a

It is known that 65% of all voters vote for political party A in the municipal elections 1 Calculate the probability that 20 of the 30 voters will vote for political party A in the municipal elections. 2 Calculate probability that more than 19 but less than 22 Voters will vote for a political party A in the municipal election. 3 Calculate the

Hi was going over a homework questions and couldn't figure this one out. Q. A 92% confidence interval is given as (2.718, 3.141). Find a 95% confidence interval.

Consider the system of figure below. Suppose that components are functioning. Independently and the probabilities that components C1 , C2 , C3 , and C4 are functioning : 0.9 , 0.85 , 0.75 , and 0.7 respectively The probability that system is functioning given that component C1 is not functioning is

What are the domain and range of log(4x+5) ? Question 1Answer a. (-5/4, ), (-, ), b. (5/4, ), (0, ) c. (-, ), (-, ) d. (0, ), (-, )

Which of the following are NOT rational expressions, given that x and y are integers. 8x2-3 A)4y3+18 17-x 20x B) Select one: Q a. None of these. 0 b. B, C and D O c. A and C 0 cl. B O e. A,BandC Determine the non-permissible values of: 2x -5 8-X Select one: Oa. x #4 Ob. x - 8 O c. None of these. Od. x 8 Oe. x # -4State the quantity you have to
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For the complex number 4 + 9i the real part is and the imaginary part is

For functions f(x) = (144/x + 24)^2 and g(x) = (13/2)^3 the composite function (f o g)(x) equals: Please show step by step

Provide three examples of how you would protect client or customer information

Ages of Homes Whiting, Indiana, leads the "Top100 Cities with the Oldest Houses" list with the average age of houses being63.1 years. Farther down the list resides Franklin, Pennsylvania, with an average house age of57.4 years. Researchers selected a random sample of18 houses in each city and obtained the following statistics. At= 0.1 , can it be
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When Teri walks into her house, all of her friends and family yell, 'Surprise!' Teri's eyes and mouth widen and she displays a genuine smile for a split second. Which of the following would Teri's expression of surprise be considered? A macro-expression A mezzo-expression A mini-expression A micro-expression A haptic expression

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