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Mathematics Questions and Answers October 02, 2021

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If the slope of a simple linear regression line is equal to zero, _______________. A.a scatter plot would clearly show a downward sloping trend B.the regression line of best fit would be horizontal C.a scatter plot would clearly show a strong upward sloping relationship D.the coefficient of determination would be close to 0.5

244.points P and Q are given. Let L be the line passing through points P and Q. a. Find the vector equation of line L. b. Find parametric equations of line L. c. Find symmetric equations of line L. d. Find parametric equations of the line segment determined by P and Q. P(4, 0, 5), Q(2, 3, 1)

The stem and leaf plot below shows the ages of 30 attorneys at a small law firm.What is the age of the youngest attorney? Solve the following problems. The stem-and-leaf plot below displays the ages of 30 attorneys at a small law firm. Stems Attorneys 6 + LO 001 12589 1234458 123458 0137 What is the age of the youngest attorney
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https://www.google.com/search?client=safari&hl=en-us&sxsrf=ALeKk03roIkWA579HQGArsoGCiQEVhHlNA:1606770352108&q=The+director+of+research+and+development+is+testing+a+new+medicine.+She+wants+to+know+if+there+is+evidence+at+the+0.05+level+that+the+medicine+relieves+pain+in+less+than+331+seconds.+For+a+sample+of+53+patients,+the+mean+time+in+which+the+m

There are 100 counties in a particular state. The average number of traffic accidents per week is four for each county. Find an approximation to the probability that there are more than 450 traffic accidents in the state in one week. Result should be 0.58, not 0.62. Please give specific explainations.

The number of bacteria P(t) in a certain population increase according to the following function, where time t is measures in hours. P(t)= 2500e^0.16t Find the initial number of bacteria in the poplation and the number of bacteria after 6 hours. Round answer to the nearest whole number

Discuss the notion of strategic planning being more formal versus informal in an organization

Problem Page Question A laboratory claims that the mean sodium level, , of a healthy adult is140 mEq per liter of blood. To test this claim, a random sample of30 adult patients is evaluated. The mean sodium level for the sample is139 mEq per liter of blood. It is known that the population standard deviation of adult sodium levels is12 mEq. Assume

6. Find an equation for each function and explain your thought process. b. 2 0 2 -2
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2. (20 points) Consider the constant-coefficient system x' = Ax, A - 3 (a) Find the eigenvalues and eigenvectors of A. (b) Find the general solution of the system in terms of real-valued functions. (c) Sketch the phase portrait for the system and classify the solution behavior as to its type (e.g. sad- dle, source, etc.) Note: when the eigenvalues
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mer 2023 alex willian eek 4 Question 10 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possibl Next question Find the function that is finally graphed after the following transformations are applied to the graph of y = vx in the order listed. (1) Reflect about the x-axis (2) Shift down 8 units (3) Shift left 2 units y =0
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Find the area of the surface of revolution generated by rotating the curve y= \\ x . 1 S .x $ 2 about the x - axis. For the toolbar, press ALT+F10 (PC) or ALT-FN+F10 (Mac) R U v EV A v
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2. (Risk sharing) Sempronius and Jacobus both have utility u(w) = In(w), and they both face idiosyncratic risk of lasing 850 with the probability 1/2. (oj Suppose they get together and decide to share the risks efficiently between them. What is the equilibrium allocation? Describe. (b) Suppose an external insurance company exists. This company
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Let A = (a) By calculating and factorizing CA(x), the characteristic polynomial of A, show that -1 is the only eigenvalue of A, and then find a corre- sponding eigenvector u. (b) Find a vector v e R2 such that (A + I)v = u, and show by direct calculation that P-1AP = B where P= ju v and B= o (c) Using the fact that for every integer n, find A"
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MBF3C U02A12-P3 PARABOLA INVESTIGATION #3 Equation y = ( x - 3) 2 Table of Values y 0 a UA W N Fill in the following information about the parabola: What is the Direction of What's the Step Pattern? Over 1 vertex? Opening? Over 1 Over 1 PARABOLA INVESTIGATION #4 Equation y = ( x+4) Table of Values X Ly - 4 Fill in the following information about
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2. For the matrix A = (a) Determine AT. (b) Calculate A + AT and A - AT. (c) Prove that for all square matrices A, A + A' is symmetric. (d) Find a symmetric matrix B (i.e. B' = B) and a skew-symmetric matrix C (i.e. CT = -C) for which A = B + C. (Hint: you can use part b).)
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Six children-A through F-distributed chocolates to some of the houses in a colony, which had a total of 50 houses, numbered sequentially from 1 to 50, such that each child gave the same number of chocolates to every house that he visited. The six children gave a distinct number of chocolates among 1, 3, 5, 9, 11 and 14 chocolates to each house

For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is more than 3 hours. Question content area bottom Part 1 Write the claim as a mathematical statement.

A school has a toy drive for a holiday in which students

A doctor claims that teenage boys get more screen time as teenage girls. A study asked 15 teenage boys, and 18 teenage girls, how many hours of screen time they get per day, on average. The results are to the left. What is the null hypothesis to examine the claim? H0: ____ What is the alternative hypothesis to examine the claim? H1: ____ Which of

find both an exact product and an estimated product. 4 1/2 x 2 1/4

A farmer finds there is a linear relationship between the number of bean stalks,n, she plants and the yield,y, each plant produces. When she plants30stalks, each plant yields34oz of beans. When she plants36stalks, each plant produces32oz of beans. Find a linear relationship in the formy=mn+bthat gives the yield whenn stalks are planted.

A deck is shuffled and three cards are dealt without replacement. (a)Find the chance that the first card is a king. (b)Find the chance that none of the cards is a king. (c)Find the chance that the first card is a king, second card is a queen and the third is an ace.

A multiple regression equation has R 2 = 0.25 and SS y = 90 for a sample of n = 30 people. a. test the significance of the regression equation using alpha = .01. b. compute the standard error of estimate for the equation. Can you please explain how to get the answer and the steps, thank you.

, Select 1 home, the # of faucets you have in your home, and enter the values in the table below from the "# of drips per minute" box, hit the "Now Calculate" button, and enter the results in the table. Let's assume that your home has leaks like those listed. For each of the drip rates, add the Daily Waste from leaks to your Total Household Daily

Your grandfather purchased a house for $50,000 in 1952 and it has increased in value according to a function y = v ( x ), where x is the number of years owned. These questions probe the future value of the house under various mathematical models. (Let x = 0 represent the year 1952.) Your grandfather purchased a house for $50,000 in 1952 and it has
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Hi can you help Find the radius and interval of convergence for the power series (2x - 1)n n2 n=0
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I need help understanding how to get the answer please. \f
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solve please 5. [-/.5 Points] DETAILS HARMATHAP12 9.8.038. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find the rate of change of tenaity of light. b) What is the rate of change when x - 1? When x - 3? when x = 3 (c) How fast is the race found in part hanging when x = 17 When * = 37 1. [-M.07 Points] DETAILS HARMATHAP12 10.1.003. MY NOTES ASK
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Question At the consulting agency, they recognize that water/wastewater customers fall under different segments. Each segment supports different characteristics that influence the services accessible to them and the price for these services. For simplification, these segments have been grouped into two categories: commercial and residential

Annual income: The mean annual income for people in a certain city (in thousands of dollars) is43 , with a standard deviation of23 . A pollster draws a sample of91 people to interview (a) What is the probability that the sample mean income is less than40 ? Round the answer to at least four decimal places. (a) What is the probability that the

The Small Business Administration offers business loans at 3.95% interest compounded monthly for 8 years. If the owner of a restaurant can afford monthly payments of $950, what is the maximum amount the owner can borrow?

What is the breakeven quantity of weekly production for this particular situation: fixed cost: $1,500 per week; variable cost: $3 per unit; revenue: $6 per unit Select one: a.200 b.500 c.100 d.600

In captivity, a male lion grows to weight about 420 lbs with a standard deviation of 35 lbs.A zoo would like to have a lion that is in the largest 25% of male lions based on weight.How much should a male lion weigh for the zoo to obtain the male lion?

The doctor ordered Gentamicin 40 mg IV q8h for a child weighing 44lb Question 22 v FLAG QUESTION The doctor has ordered Gentamicin 40 mg IV q8h for a child weighing 44 lb. The recommended dose range for Gentamicin is 6 to 7.5 mg/kg/day in three divided doses. Gentamicin is available as 20 mg/2 mL solution. a. What is the child's weight in
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In a test of a technique of genderselection, the 100 babies born consist of at least 80 girls. Because there is lessthan1chanceinabillion of getting at least 80 girls among 100babies, the results are statistically significant.

Assignment8: Problem 2 Previous Problem Problem List Next Problem (1 point) Find the doubling time for a city whose population is growing by 19% per year. The doubling time is years. help (numbers) Preview My Answers Submit Answers You have attempted this problem 0 times. You have 3 attempts remaining
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Please help me solve A survey handed out to individuals at a major shopping mall in a small Florida city in July asked for the information below. - Gender - Age - Ethnicity - Length of residency - Overall satisfaction with city services (using a scale of 15, ranging from poor to excellent) - Quality of schools (using a scale of 15, ranging from
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) The Manager of a local StarBuckes Coffee Shop is interested in improving the service provided to customers at the coffee shop. As a first step in the process, the manger asks his assistant to record the number of arrivals between 9:00 A.M and 10:00 A.M., since this is the busiest time of the day. The number of arrivals during this time interval,

In 2003, Centers for Disease Control (CDC) published a study that looked at work at Children's Hospital in Denver, Colorado. Of the 1000 people who received a flu vaccine before November 1st, 149 still developed flu-like illness. Of the 402 people who did not get the flu vaccine, 68 got a flu-like illness. (a) Create two-way table to summarize the

8 turns of a wire are wrapped around a pipe with a length of 60 inches and a circumference of 4inches, so that the wire reaches from the bottom of the pipe to the top. What is the length of thewire in inches?

The line that divides the left and right hand runs between the numbers 5 and 6. true or false

The Weather Atlas reported that the highest temperature in Kalamazoo, MI was observed in the month of July, averaging about 83.6 degrees (in Fahrenheit). Assume the distribution of temperatures in July follows a normal distribution with a standard deviation is 8 degrees. What is the probability that for a randomly selected day in July, the

Identify a pattern in the given list of numbers. 5, 25, 125, 625, and 3125 Then use this pattern to find the next number. (More than one pattern might exist, so it is possible that there is more than one correct answer.) 5, 25, 125, 625, 3125, Question content area bottom Part 1 The next number is enter your response here

(c) If the sample size is nequals16, what is likely true about the shape of the population? A. The shape of the population is skewed left. B. The shape of the population is approximately normal. C. The shape of the population is skewed right. D. The shape of the population cannot be determined

is estimated 30% of all adults in United States invest in stocks and that 86% of U.S. adults have investments in fixed income instruments (savings accounts, bonds, etc.). It is also estimated that 26% of U.S. adults have investments in both stocks and fixed income instruments

A medication label indicates 950 mcg. What would be the equivalent in milligrams

A bus traveled on a level road for 5 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the average speed on the level road if the entire trip was 397 miles.

Find the amount of each payment to be made into a sinking fund so that enough will be present to accumulate the following amount. Payments are made at the end of each period. The interest rate given is per period.P90,000; money earns 7% compounded semiannually for 16 and a half years. Select one: a. P1418.37 b. P1012.23 c. P1491.52 d. P1569.74

A cohort of 2000 nurses, all women aged 65 years and older, who were in the Nurses' Health Study were examined. The proportion of nurses who were given a diagnosis of rheumatoid arthritis using three different classification systems was calculated. The results reported a prevalence of rheumatoid arthritis ranging from 1% to 15%. What is the lesson

Consider the following linear programming problem: Max x1 + 2x2 s. t. *1+22
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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 = (.25)* -1 + 24. Danielle is trying to solve the equation = 64 Explain in detail how Danielle should solve this problem. Then solve it step by step showing all your work and tell
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Liz aldas design company ships its packages through reliable ship and save. Reliable charred $4 plus $0.80 per pound to ship each package. If the charge for shipping a package to Nevada was $14.40, how much did the package weigh?

Please help thank you Exit ticket, mini Quiz A function is given as the set of ordered pairs {(-3, 4), (0, 4), (5, -1), (7, -5)}. Which set represents the range of the function? a) {4, 0, 5, 7} b) {-5, -1, 4} c) {-3, 0, 5, 7} d) {4, 5, 7, -3,-1}
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What is Linear Optimization? Give examples where such models can be best applied.

Create two (2) threads named by the user. Display their various states using get State ( In the main method: 1. Enable user input. 2. Create two (2) threads. 3. Ask the user to enter a name for each thread. 4. Show the names and states of the threads. 5. Start the threads. 6. Have the threads sleep for half a second. 7. Show the names and states
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3372345/ (article) What is the paper is about ? {lookin the Introduction and Abstract } What is the central argument ?{ look in the Introduction and Abstract } What field of research or perspective does it represent (e.g. cultural anthropology, biological anthropology, medicine, psychology, etc.) ?

question number is 2 and need to be solved as soon as possible udent Success ortal 2. The production department of Celltronics International wants to explore the relationship between the number of employees who assemble a subassembly and the lyCoursEval number produced. As an experiment, two employees were assigned to assemble the subassemblies.
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Part 2: Personal Consumption Patterns Track your personal consumption over the period of one week. After the one week period, describe your general consumption patterns for each topic listed below. Answer the questions in each section. Present your information in table form. Examples of tables can he found at the end of this section. NOTE: At the
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Definition 7.4.4 Let {On (x)} be a sequence of functions such that lim On ( x ) f (x ) dx 00 exists for all f E CO(R). Then the sequence is said to converge to the dis- tribution 4, defined by (4, f) = lim fA xp (x) f (x) "d 1 - 0o This convergence is denoted by On - 4. For example, it can be verified that n on'x _> 8(x) and - cosnx - 8(x ) nu x2
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For each of the following equations, determine whether y is a function of x. x = Sy 3 Function Not a function y = 7x Function Not a function x = -2y Function Not a function x + 4y = 8 Function Not a function X 5 ? Exmanation Check
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please use excel and the data solver please show all steps Problem lem 11P 5 Bookmarks Show all steps: ON Hart Manufacturing makes three products. Each product requires manufacturing operation three departments: A, B, and C. The labor-hour requirements, by department, are as follo Department Product 1 Product 2 Product 3 1.50 3.00 2.00 2.00 1.00
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20. Scientists measured the lengths of a species of lizard in a region. The graph below shows that the measured lengths have a normal distribution. 10 12 14 16 18 20 22 24 26 28 30 32 34 Length (cm) A lizard that is one standard deviation below the mean is A. 14 cm long. B. 20 cm long. C. 18 cm long. D. 10 cm long
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Find the volume of the largest rectangular box with edges parallel to the axes that can be inscribed in the ellipsoid (Z32 y2 22 _ _ _ : 1 36 + 9 + 49 Hint: By symmetry, you can restrict your attention to the first octant (where at, y, z 2 0), and assume your volume has the form V = 8:1:yz. Then arguing by symmetry, you need only look for points
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what sampling mehtod would be used to determine A quality control department for a manufacturing facility thoroughly inspects every 50 th item produced to ensure that it meets quality standards.

What is the formula called that refers to the time, effort, or money that a person is will to invest in order to possess new information prior to rendering a decision or drawing a conclusion? Group of answer choices logistics value of information expenditure simplified

Find the particular solution of the differential equation that satisfies the initial condition. Differential Equation Initial Condition x 3 y' +2 y = e 1/ x 2 y (1) = e

https://onedrive.live.com/view.aspx?resid=CB4F5FACA9DBE807!389&ithint=file%2cdocx&authkey=!AFlDgePmuy-QOao this link c0ntain the questi0ns that i need explanati0ns for , thank you. i will make sure to leave a great review once you are done!

Which is not needed to calculate an adequate sample size for a study? A. Actual population size. B. Level of power C. Alpha level D. Effect size

PROBLEM 7 . An Auto Zone store' supplier wants to estimate an average length of time car owners plan to keep their cars. It's known that lengths of time car owners plan to keep their cars are Normally distributed. Answer the following questions. (Round your boundaries to 2 places after the decimal point). Question 11 (2 points): A random sample of

In a sample of smokers, you want to test whether there is an association between the number of pack-years of smoking and systolic blood pressure in mmHg. What statistical test would you use to test this association? In a sample of smokers, you want to test whether there is an association between the number of pack-years of smoking and systolic

A study of 200 advertising firms revealed their income after taxes: INCOME AFTER TAXES NUMBER OF FIRMS Under $1 million 102 $2 million TO $20 million 61 $20 million or more 37 A) What is the probability an advertising firm selected at random has under $1 million in income after taxes? B) What is the probability an advertising firm selected at

I am not sure how to lug this in my calculator to get the correct answer. Square root? Thanks for your help! In a sample of 100 teenagers, 80 reported that they were in favor of an increase in the minimum wage and 20 were against it because they feared a loss of available jobs. Based on this sample, find the 0.95 confidence interval for the true

1. (7pt) Suppose V is a vector space over R and that T : V ) V is a linear transformation with two distinct eigenvalues A, p E R. (a) (3pt) Prove that EA ['1 E: = {0}. (b) (4pt) Suppose, in addition, that z\\ and p are the only eigenvalues of T, and that T is diagonalizable. Prove that V = E; 89 E\". 2. (3pt) (a) (1pt) Define T : P(R) - P(R) by
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only home for us Human beings. It provides food, all, water and minion Of other things, it simply mean a haven of survival . Obviously, it is mandatory to have a safe, healthy and supportive environment for us to attain good health. Environment is a vital subject th makes you breathe open under it, With our present situation we are now
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0/1 Points] DETAILS MY NOTES WE Solve the following equation. (Enter your answers as 7 - (4 - 2x) 2/3 = 3 H X Submit
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https://docs.google.com/file/d/1OSDWhYKiUz7Lyv8qEYOMxiLo6bMQ6Dli/edit?usp=docslist_api&filetype=msexcel use the data in this link to solve these questions Refer to the Lincolnville School District bus data, which report information on the schooldistrict's bus fleet. 1) Determine the level of measurement for each variable. Select the variable

enVision Algebra 1 PearsonRealize.com 21. Solve the system of equations. y = 3x y = x2 + 3x - 16 25. Damian works after school. Each day he earns a set amount, plus an hourly wage, as shown in the table. Write a linear function f that Damian can use to determine his pay. 22. Find the product. Hours 1 1.5 2 2.5 3 (2x - 6)(2x + 6) Pay 22 28 34 40 46
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Supported by her research team of Jessica. John, Lillian, Clayton and Lacey, everyone agrees that this is the best offer available. Jessica concurs but wants to know what her monthly payment will be. What is her monthly payment? (Please show amount to the nearest penny) The answer must be shown as a display on your calculator (TI 84 plus). Please
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Question 1 (Essay Worth 10 points) (01.02 MC)The number line shows the distance in meters of two jellyfish, A and B, from a predator located at point X: -1.5 0.5 A X B -3 -2 -1 0 2 3 Distance (m) Write an expression using subtraction to find the distance between the two jellyfish. (5 points) Show your work and solve for the distance using additive
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Write an equation for a rational function : vertical asymptotes at x=-3 and x-6, x-intercepts at (2,0) and (1,0). Horizontal asymptote at y=-2

https://phys.org/news/2022-01-mathematics-social-perspective.html This article which is talk about math, I need summary of this in easy and clear words

The ages of commercial aircraft normally distributed with a mean of 13.0 years and standard deviation of 7.9 years . What percentage of individual aircraft have than 15 random sample of 64 aircraft selected and the mean age of the sample is computed . What percentage of sample means have ages than 15 years ?

Water is flowing at the rate of9ft 3 /min into a tank that is in the shape of a right circular cylinder whose base radius is2ft.How fast (in feet per minute) is the water level rising

The arena has several triangular prisms that are used as advertising boards. They are to be filled with sand so they cannot easily be moved. What is the volume of sand needed to fill one? _____ m 3 \f
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A gas station sells regular gas for $2.10per gallon and premium gas for $2.60a gallon. At the end of a business day220gallonsof gas had been sold, and receipts totaled $492. How many gallons of each type of gas had been sold? regular gas _____gal premium gas______gal

Flag this Question Question 82 pts What is the 99% confidence interval for a sample of 36 seat belts that have a mean length of 85.6 inches long and a population standard deviation of 2.9 inches
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9. Island Bridge Problem: Suppose that you work for a construction company that is planning to build a bridge from the land to a point on an island in a lake. The only two places on the land to start the bridge are point X and point Y, 1000 m apart. Point X has better access to the lake but is farther from the island than point Y. To help decide

The probability of guessing a multiple choice question correctly is 1/4. The probability of a student correctly guessing two consecutive multiple choice questions is a. 1/4 b. 1/16 c. 1/2 d. 7/16

An adult ticket to a volleyball game costs $9.50. A student ticket costs $6. A group of 25 people paid $188.50 to go to the game. How many were students

1. The ratio of intensities of sound pollution measured at a small airport runway versus the local highway is 6420.4. If the sound level on the local highway is 91 dB, determine the sound level on the runway. f WV 1/
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1 points Save Answer Brand XYZ noticed that when they associated their products with higher self-esteem that sales increased by 9%. How much will sales be in four years if the firm runs an ad campaign designed to associate their product with high self-esteem if their current year sales are $254 million? O $393.83 million $358.54 million O $371.25

Algebra 2 Semester 2 Review Which of following is an equivalent expression to ( my '3 A) (93)"? B) (93)3 C) (93)\"2 D) 493)? Write an equivalent expression to (3V29)4 What is the simplied form of(81x6)% 'i' A) 33:12 B) 3x3 C) 9x12 D) 9x3 Which of the functions represents the graph below? \"i": 'l I C) y=x/4 D)y=\\/+4 1 What is the simplied form
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1.1Consider a random experiment consists of tossing 3 coins of valuesN$1, N$5 and N$10 and observing heads and tails. a) Give the sample space. [4 MARKS] b) What is the probability that coin N$1 fell on a head and the rest either on head or tail? 1.2Consider an example in which a coin is tossed three consecutive times. Draw a probability tree for

help with question attached The population of a county is growing at a rate of 9% per year, compounded continuously. How many years will it take for the population to quadruple according to the exponential growth function? Round your answer up to the nearest whole number, and do not include units. Provide your answer below
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Please help me with the answers Find the stationary point of the following function: f(:c,y)= 2592+y2 +5w 7y+8 O a. (x,y)={1.98,5.63) O b. (x,y)=(-1.25,3.50) O c. none of the others 0 d. (x,y)=(5.63,1.98) O a. (x,y)=(-3.25,7.50) A rm's production function is om, L) = mm. where K b D and L 3 0 are respectively, capital and labour costs. Unit
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So I am doing a statistic project on 2 basketball players. I am observing their 3PT percentages for every game played in a season. Player two has a higher average 3pt%, lower standard error. Payer 1 played 78 games, player 2 played 69. I ran a TTEST ( =TTEST(B2:B70,A2:A79,1,3) ) B2:B70 was the array with the 3pt %s for player 2 for the games

An object travels along the path r (t) = (t2 + 3) i + (t3 10) j 7 k If the object leaves the path at t = 2 and travels in a line tangent to the path, find parametric equations for the tangent line starting at t = 2 . x(t) = y(t) = z(t) =

A sports bar decided to do a survey of its patrons, asking the question "Do you believe the NFL should lengthen the regular season?" Survey responders could choose 1 - 5 where a 1 is strongly disagree and 5 is strongly agree. The results of the survey are in the table below. What score, out of 5, would result from this survey? Do not round. Score

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