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Mathematics Questions and Answers March 20, 2021

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You are working for a pollution control company that specializes inPM2.5 removal from homes.Your supervisor shows you the following abstract and does not understand the stuff about regression.The supervisor asks you to look at this abstract and explain it in English without all the statistical jargon. "In recent years (2000-2007), ambient levels

for distance, label your answer in meters or feet. Understand the problem: One of the most important steps in solving a math problem is to understand what the problem is asking you to do. Read the problem carefully and make sure you understand what is being asked. Look for keywords and phrases that indicate what operation(s) you need to perform to
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For each of the following distributions, compute the maximum likelihood estimator based oni.i.d. observations X1,...,Xnand the Fisher information, if defined. If it is not, write DNE a) Xi ~ Ber(p), pe(0,1) b) Xi ~ Poiss (lambda) c) Xi ~ Exp(lambda) d) Xi ~ N(mu, sigma^2) (i.e. find MLE for mu and sigma^2)

Thanks!!!! The cost function for producing x units of a product is C(x) = -0.003x2 + 4.2x + 3000 . The revenue function is R(x) = 138x - 0.15x2. Determine the marginal profit for the sale of 100 units of the product. (4 marks)
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Question 2 (1 point) (07.03 LC) Expressradians in degrees. a 40 b 80 c 160 I AM A STUDENT NEED HELP

p=132t+18000 gives the total population, p, of a small city t years after 1967. use the equation to determine (what year) the population reached of 20904 people

Prove that |[0, 3]| = |(2, 5) (6, 7)|. If you construct functions in your solution with certain properties, you may assert that they have those properties without proof.

A nurse is preparing to administer dextrose 5% in water (D5W) 1,000mL to infuse over 10 hours. The nurse should set the IV infusion pump to deliver how many mL/hr (round to the nearest whole number) mL/hr
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Please help see attached 14. Use the Divergence theorem to evaluate the surface integral ff wig S where S is the sphere 2:2 | 3,12 + 22 : 1
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Which of the following are correct for Domain analysis ? Select one: a. define application domain to be investigated b. categorize items extracted from domain c. collect representative applications from the domain d. All of the ment

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Piazza del Campo in Sienna, Italy (illustrated below) is one of the best 'positive spaces' on the planet for three main reasons. Those reasons are: (1) ratios of enclosure and strong sense of enclosure; (2) architecturally closed corners; (3) sloping ground plane. true or false

A rancher wants to fence in an area of 2000000 square feet in a rectangular field and then divide it in half with a fence down the middle, parallel to one side. What is the shortest length of fence that the rancher can use? Length of fence= (in feet)

Tarea A partir de la lectura, responde lo siguiente: - A partir de los paradigmas referidos a la organizacin escolar, cmo puedes definir el paradigma y la visin de la escuela en la actualidad. Expcalo. - Qu tipo de modelo correspondera a la gestin educativa de una escuela de calidad? - Define las competencias que debe tener un directivo escolar o

Please explain how to do the attached homework problem and the correct answer. Given the demand equation p : D(q) : 100 3112 , calculate the consumer surplus when q* = 5 units are sold at equilibrium price. 0 500 O 250
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11. If the center of a circle is at (a, b) and the radius of the circle is c, how would you write the equation of the circle? 12. A machine part is a 4-in.-square piece of metal plate with a round hole 2 in. in diameter drilled through the center. What is the equation of the circle given that the piece of metal is placed in Quadrant 1 with its
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A typical college student spends an average of 2.4 hours a day using a computer. A sample of 13 students at IUP revealed the following number of hours per day using the computer.Can we conclude at a 98% level of confidence, that the mean number of hours per day using the computer by students at IUP is the same as the typical student's usage?

6. Employer Duties 6.1 Social Media Sites can be Part of the Workplace
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A sample of recorded dog barks is analyzed for decibel intensity.The mean intensity is 62.25 decibels with variance of 4.45.If this data set is normally distributed, we would expect approximately 95% of the barks to be within what range? Use 68-95-99.7 Rule.

Data can be defined as numbers in context. Suppose you are given the following set ofnumbers, what additional information would allow you to define these numbers asdata? 1.73, 1.83,1.57, 1.88,1.70, 1.65

content area top Part 1 If (a,negative 3) is a point on the graph of yequalsx squared minus 4 x, what is a? Question content area bottom Part 1 aequals enter your response here (Use a comma to separate answers as needed.)

Es costumbre (y parece de sentido comn) que el anfitrin se ubique junto ................ o la principal autoridad, a los efectos de poder atenderle de forma continua Elegir: a. Al invitado de honor b. Los actos c. Jefe de protocolo d. Un jefe de estado

The claim that "40% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available" is to be investigated at the 0.02 significance level. If 74 out of the 200 workers sampled said they would return to work, what is our decision?

question is attached below in screenshot. meson No. 5: [08 Marks] A grocery store introducing items from Saudi Arabia is interested in analyzing buying trends of these new \"international\" items, namely Y, M, C, and J. The les Grocery Store List and Grocery Store Stacked provide data on a collection of transactions in itemlist format. Biscuit =
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can someone help me with part b number 1 thank you so much \f
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ompleta los deseos y preferencias que expresan estas personas en las oraciones. Usa las formas correctas de los verbos querer y preferir. Usa primero el verbo querer y luego el verbo preferir

We'll solve (16 \cdot 2^t - 6 = 100 \cdot (0.5)^t). Confirm the solution using a left side/right side table

annual dues for the mathematical association of America were $3 in 1916. They were $175 in 2019. a) How much would the $3 dues in 1916 be in 2019 dollars? b) How much have dues gone up (or down) between 1916 and 2019, in 2019 dollars, in absolute and relative terms

Al contrastar el modelo de la investigacin - accin con el modelo de los 3 pasos de Lewin, el paso de descongelamiento es similar a la etapa

Income calculations. Compute the gross income, adjusted gross income, and taxable income in the following situations. Use the exemptions and deductions in Table 4.9. Explain how you decided whether to itemize deductions or use the standard deduction. Question: Suzanne is single and earned wages of $33,200. She received $350 in interest from a

How can I obtain a small summary of a questio without having to pay?

Step 4) Conduct a chi-square test assessing the association of and sex. proc freq data=SASHELP.HEART; tables bp_status*chol_status/chisq; run; Question:What is the p-value from this test? Answer: Question:Is bp_status and chol_status independent?Interpret the test in a sentence. Answer:

Why should you usepie charts, histograms, and bar charts in business presentations?Also, can histograms and bar charts "distort" the data being presented? If so, how?

Which term equates to multiplication? Which term equates to multiplication? Product Quotient Difference Sum None of these answers are correct

Anova tests, and multiple choice. please help in answering all parts. thank you F ratios are always positive. True or false? True False If a researcher wanted to reject the null hypothesis for an ANOVA, would she rather increase or decrease withingroup variance? increase decrease
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For the given confidence level and values of x and n , find the following. = x 45,= n 95,confidence level 99% (a) Find the point estimate. Round the answers to at least four decimal places, if necessary. The point estimate for the given data is \f
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Find the surface area of each figure. Round to nearest tenth, if necessary. \f
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A plumber and his assistant work together to replace the pipes in an old house. The plumber charges $35 an hour for his own labor and $20 an hour for his assistant's labor. The plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $2700. How long did the plumber and his assistant work on this job?

whats f(8) iven the function f ( x ) = 2 x x 1 x + 5 1 < x 6 3 x > 6 Calculate the following values: f ( 5 ) = 10 Correct f ( 3 ) = 8 Correct f ( 10 ) = -20 Correct f ( 8 ) = f ( 1 ) = -2 Correct f ( 6 ) = 11 Correct

If a primer is 20 nucleotides in length, how many G and C residues must it have approximately according to the rules of primer design? Group of answer choices 8-12 4-6 12-16 only 8

The regression model is based on outside temperature and daily ice cream sales data at the local movie theater. Is temperature significant at the 0.1 level? Regression Statistics Multiple R 0.950511723 R Square 0.903472536 Adjusted R Square 0.891406603 Standard Error 3.5485219 Observations 10 ANOVA df SS MS F Significance F Regression 1
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You have a fever so you measure your temperature, which is 101.5 degrees Fahrenheit. Convert this into degrees Celsius. View Available Hint(s) O 24.3 degrees Celsius 38.6 degrees Celsius O 69.5 degrees Celsius 214.7 degrees Celsius

I just needed help choosing the following. Thank you! Select the word or phrase that most appropriately fits in the blank. (Note that there are more words than blanks, so not all words will be used.) The or 50th percentile of a sample always [ Choose ] divides the data into two equal parts; it is the data value in the "middle" position. [Choose ]
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(20 Points) Assuming i 0 and t 0, show that: 1. (10 Points) (1 d)^t = 1/(1 + i)^t

Therefore, StartFraction d Over dx EndFraction left bracket 4 x log x Superscript 9 right bracket equals StartFraction 36 plus 36 ln x Over ln 10 EndFraction

Table 2. Discriminant Validity Ascription of Awareness of Environmental Environmental Willingness to Responsibility Consequences Beliefs Literacy Pay Formell-Laucker Criterion Ascription of Responsibility 0.756 Awareness of Consequences 0.744 0.836 Environmental Belief 0.424 0.405 0.693 Environmental Literacy 0.392 0.226 0.209 0.646 Willingness to
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What is the meaning of x-bar ~ N(80,1) A.The random variable x is distributed with a bell shape, an average of 80 and a standard deviation of 1. B.The set of x-bars is distributed with a bell shape, an average of 80 and a standard deviation of 1. C.The random variable x is distributed with a bell shape, an average of 1 and a standard deviation of

1-P(X7) where P(X7) =P(x=0) + P(x=1) + P(x=2) + P(x=3) + P(x=4)+P(x=5) + P(x=6) + P(x=7) Please explain

Give an example of a "Before and After" Matched Pair that you, as a Health Professional, would like to provide a Hypothesis Test for. Your discussion MUST include what is being measured as the "Before" component, what is being measured as the "After" component, and the unit of measurement that you are using for each of these two components. note:

Completa la frase con la forma correcta del verbo saber para expresar I knew. Yo que ella tena razn

Please help with this problem: Batteries are supposed to last for 13 hours with a standard deviation of 0.31 hours.The quality control engineer is testing a new operating system and finds that a sample of 43 devices using the new operating system exhausts the batteries in a mean of 12.89 hours.Test to determine if the average life of the batteries

For the data set {5, 6, 1, 8, 10, 15, 12, 2, 8} what is the range? Group of answer choices 9 10 14 16

Question: Please help me work through this problem Graph the equation on paper, and then choose the correct graph. y=4'* Choose the correct graph on the right. 9 @99 9 @P
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Use the Factor Theorem to determine whether x + 3 is a factor of P (x) = -x - 2x +4x--7. Specifically, evaluate P at the proper value, and then determine whether x + 3 is a factor. P(0) -0 O x + 3 is a factor of P (x) O x + 3 is not a factor of P (x) X
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Using Discrete distribution formulas please explain and answer mathematically and explain what the question is asking for \f
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4.Use the Divergence Theorem to calculate the surface integral Use the Divergence Theorem to calculate the surface integral JJ. F . dS; that is, calculate the flux of F across S. F(x, y, z) = xyeZi+ xy z3j - yek S is the surface of the box bounded by the coordinate planes and the planes x = 6, y = 2, and z = 1
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Document Grodder Router Overhead projector ecurity Method Reasoning
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Which 3 of these statements are true about invoices when the markup is turned on? QuickBooks Online automatically sets up a Markup account and posts to markup there Customers see the markup on a separate line You can change where the markup posts in Account and Settings Customers see the full amount of the expense being invoiced including the

The z-value expresses the distance between a particular value and the mean in units of standard deviation. Why is it useful in performing inference?

Subtract 11.379 - 6.427 Question 17 options: 5.052 4.952 4.852 17.806

I need help ! so say Rhonda and her co-workers each get to take four (4) one-week holidays next this year.So to make things fair, the employer holds a "holiday lottery" . Each employee then gets to pick out four pieces of paper at random. Rhonda gets to draw her four pieces of paper first.what is an experiment that you could perform using playing

1.4.26 Nonconformities occur in glass bottles according to a Poisson distribution. A random sample of 100 bottles contains a total of 11 nonconformities. (a) Develop a procedure for testing the hypothesis that the mean of a Poisson distribution equals a specified value Hint: Use the normal approximation to the Poisson. (b) Use the results of part

4. The following graph shows the mass of algae in a pond grows exponentially over time. Estimate the doubling time and explain (or show) how you obtained your answer. (4 marks) Growth of Algae in a Pond Mass of algae (kg) 0 2 4 6 B 10 12 14 16 Time (days)
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With coordinates Graph the solution to the f 2 2.x + 3 VIA -4x +5
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Now you know how to use direct object pronouns in Spanish. Let's see whether you got it! Complete the sentences with the correct direct object pronouns. 1. El libro es viejo. Mi abuelo enter answer compr en el ao 1955. 2. Las computadoras no funcionan, pero el ingeniero va a arreglar enter answer . 3. No encuentro mis cosas pero estoy segura de

Problem 1. Suppose that X has distribution function F(x) and probability density f(x) Let 04 7E 0 and B E R. (i) What is the distribution function of 6X? (ii) What is the distribution function of the random variable 04X + 5? (iii) What is the probability density function of the random variable 04X + B
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Body Mass Index (BMI) is a measure of a person's weight in kilograms divided by the square of height in meters. A high BMI can be an indicator of high body fatness. BMI can be used to screen for weight categories that may lead to health problems but it is not diagnostic of the body fatness or health of an individual. BMI is defined as the body
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1. Find the general solution to the differential equation y"(x) ty(x) = sec' r. 2. Solve the initial value problem (15
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In aone-tail hypothesis test where you reject Upper H0 only in the lower tail, what is the p-value if Upper ZSTAT=2.41? The p-value is _____________.

10. T F In a tum-sample hypothesis test for the difference between two independent populations, the H0 for e turn-tailed test could be written as p1~p2=
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Please help with this question: 2.Consider the experiment of rolling two dice and the following events: A: 'The sum of the dice is 8'andB: 'The first die is an even number'andC:"The difference (absolute value) of the dice is 2" Find:(a)p(A and B)(HINT:You cannot assume these are independent events.) (b)p(A or B) (c)Are A and B mutually exclusive

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Suppose certain coins have weights that are normally distributed with a mean of 5.953 g 5.953g and a standard deviation of 0.065 g 0.065g. A vending machine is configured to accept those coins with weights between 5.873 5.873 g and 6.033 6.033 g. a. If 300 300 different coins are inserted into the vending machine, what is the expected number of

A biologist wants to test if there is any linear relationship between the amount of fertilizer supplied to aubergine plants and the subsequent yield of aubergines. She selected 2 aubergine plants of the same variety and treated them weekly with a solution in which x grams of fertilizer was dissolved in a fixed quantity of water. The yield, y

Hello Tutor, My Name is Nathan and was wondering if you can help me solve these questions. I'm practicing for an exam and cant figure them out. Thanks :D \f
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11. If you wrote the formula =ROUNDDOWN (25.83%,2), the resulting value would be . a. 26% c. 25.8% b. 25% d. 25.83% ANS: B PTS: 1 REP: 96
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How can I develop a Time Series Chart and a Descriptive Data table in minitab. What can i infer on the behavior and trend of values. Please explain to me step by step. Thank you \f
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Divide. Assume that all variables in any denominator are nonzero. StartFraction x Superscript 5 Over x Superscript 9 EndFraction

=SUMIFS(D:D, A:A, A2, B:B, "Med A") giving blank values

Please help you solve Construct Arguments Alisa says it is easier to compare the numbers in Set A than the numbers in Set B. 1. What is one way you could construct an argument justifying whether Alisa's conjecture is true? Set A Set B DATA 45,760 492,111 1,025,680 409,867 conjectu 2. Is Alisa's conjecture true? Justify your answer. 3. Alisa wrote
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p=(5,125,000V2449,000V+19307)/(125V2(1,000V43)) , what value of p is the horizontal asymptote of the function

According to Aldo Leopold in his classic work, A Sand County Almanac, red lanterns are... Question 15 options: A species of duck he likes to hunt. A kind of partridge he prefers to hunt in October. A dog breed he prefers hunting with. Blackberry leaves in October

8) A quiz consists of 10 true or false questions. To pass the quiz a student must answer at lea questions correctly. If the student guesses on each question, what is the probability that th will pass the quiz? A) 0.08 B) 0.055 C) 0.20 D) 0.8
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Find the following product. left parenthesis 4 y minus 1 right parenthesis squared(4y1)2

math linear \f
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Select all that apply Identify the steps required to find the quotient of 2.4 40 by using the equal-quotients technique to replace the divisor by a power of 10. (Check all that apply.) Multiple select question. Multiply 2.4 and 40 by 25. The problem changes to 60 1000. Since 60 should be divided by 1000, the decimal point in 60.0 shifts three

Previous Page Next Page Page 4 of Question 4 (3 points) With 90% confidence, for sample mean 414.50, sample standard deviation 13.80, and sample size 35, what is the upper confidence limit with 2 decimal places? Your Answer: Answer View hint for Question 4 Previous Page Next Page Page 4 of 2
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With the tight economy, more businesses are cutting back on matching retirement contributions of their employees. Is this is ethical?

What is the effect of on convergence of the Q values? That is, what happens with a lower value and a higher value?

1.The following are the means and standard deviations of some well-known standardized tests, referred to as Test A, Test B, and Test C. All three yield normal distributions. Test A Mean - 500 SD - 100 Test B Mean - 150 SD - 8 Test C Mean - 70 SD - 15 a. A score of 450 on Test A corresponds to what score on Test B? b. A score of 625 on Test A

A process is normally distributed with a mean of 10.2 hits per minute and a standard deviation of 1.04 hits. If a randomly selected minute has 12.9 hits, would the process be considered in control or out of control?

it is reported that 17% of American households use a cell phone exclusively for their telephone service. In a sample of fifteen households , find the probability that: a) No household uses a cell phone as their exclusive telephone service (round your answer to 4 decimal places). b) Exactly 9 households exclusively uses a cellphone for telephone

True or False True or False: Every decreasing sequence is bounded from below. O True O False
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Hello, I am stuck on these problems could use some help please \f
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Find the order of the Galois group Gal(Q(v/2,7)/Q(v/2)) and say what each of its elements is doing to the generators v/2, and i. Here i =+/1 C. Hint: Q(v/2,7) D Q(v/2) D Q(+/2)
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Consider a Markov chain{0,1,...}, specified by the following transition probability graph. Find the steady-state probabilities 1 , 2 , and 3 associated with states1,2, and3, respectively. 1 = ?? 2 = ?? 3 = ?? \f
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Consider these four statements about a line that passes through two points on a plane. Statement A: The line is on a different plane from the points. Statement B: The line lies on only one plane. Statement C: The line is on the same plane as the points. Statement D: The line passes through only one plane. Only statement is true

The known BAC/BrAC ratio is (0.08/0.02). If using a roadside breathalyzer you blow a BrAC value of 0.026, what is your BAC

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