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Mathematics Questions and Answers November 01, 2022

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1. Graph the function and identify the domain and range y=-2x^2 2. Solve the system. y=x^2+2x-2 y=x+10 3. Solve the equation: x^2+11x-26=0 4. You throw a ball upward. Its height h, in feet, after t seconds can be modeled by the function h=-16t^2+30t+6 After how many seconds will it hit the ground? 5. How is the graph of y=-2x^2+5 different from

4. Write in the form a cos 4x + bcos 2x + c. Determine a, b and c. 8 sin 4 x
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PROBLEM 5 (2 pts.) Let A c Roxn. Prove that if A e C with A * 0 is an eigenvalue of A and A is invertible then E C is an eigenvalue of A-1
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Juesday VOCABULARY Read the following sentence and guess the meaning of the word based on the context. 1. The students employed furtive tactics while cheating on the test to avoid getting caught. I THINK FURTIVE MEANS: FURTIVE DEFINITION: Aa
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An employee of a grocery store is placing an order for soda. There are 8 varieties of soda and they are sold in cases. Each case contains is all the same variety. The store will order 50 cases total. (a) How many ways are there to place the order? (b) How many ways are there to place the order if she orders at least 3 of each variety? (c) How many

1. How large should n be so that the Simpson's rule approximation S,, to the integral fol e~ "dz is accurate to within 0.00017
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At the beginning of the week, the balance of Sally's account was $447.35. During the week, Sally wrote five checks for $27 each, deposited her paycheck of $127, withdrew $75 cash twice, and wrote another check for $62. Find the correct expression

Given the equation of the line is y=-3*x+7, y=? if x=10 y=25 y=-23 y=-10 y=-30

"Democracies have lower corruption levels than non-democracies." a. In this hypothesis, state the independent variable, and give examples of two values that it can take on. b. State the dependent variable, and give two values that it can take on. c. Propose one intervening variable that could complete the causal path between the independent

A proposed income tax schedule is shown in the table below. if your income is: over but not over your tax is of the amount nbsp over $0 $46 comma 500 dash dash dash dash dash dash dash 15 % $0 46 comma 500 119 comma 120 $ 6 comma 975.00 plus 23 % 46 comma 500 119 comma 120 194 comma 520 17 comma 868.00 plus 29 % 119 comma 120 194 comma 520 200

High volume centers have been shown to yield better outcomes in treatment of aneurysmal subarachnoid hemorrhage patients than low volume centers. How many cases per year dose a center need to treat to be considered a high-volume center? >35 >20 >50 >100 >30

There is money to send four of nine city council members to a conference in Honolulu. All want to go, so they decide to choose the members to go to the conference by a random process. How many different combinations of four council members can be selected from the nine who want to go to the conference?

You and your colleagues are recruiting participants to study whether estrogen concentrations(ug/mL) are influenced by season(winter,spring,summer,fall). What will be the independent variable?(one word only) What is the scale/type of the independent variable you identified?(only one word)

Technology-Infused Lesson Plan for 6th grade Math where at least four technology resources in the lesson plan with one of each of the following types of instructions: One for whole-group instruction One for gifted and talented subgroup One for special needs subgroup One for English language learner subgroup Provide details as to how these

How both Descriptive and Inferential Statistics are utilized in quantitative research to answer stated research questions. Explain how the data are interpreted using these techniques. And how the output is relayed to the reader (e.g., in forms of figures, tables etc)

The following is a list of P/E ratios (current stock price divided by company's earnings per share) for companies. 57, 53, 50, 46, 42, 35, 41, 41, 41, 37, 37, 34, 34, 34, 30, 30 Draw the histogram for these data using an initial class boundary of 29.5, an ending class boundary of 59.5, and classes of equal width. Note that you can add or remove

Finite Mathmatics 14. LUX Investments has three different possibilities for investment. The first investment will pay 5% after the first year, the second 10%, and the third 25%. LUX has decided to invest $80,000 in these investments for one year. Due to risks, they have decided that the most they will invest in any one of these investments is
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WHAT IS THE DIFFERENCE BETWEEN HEROIN AND OPIATE AND COCAIN ALL STREET DURGS

see image below Calcium levels in people are normally distributed with a mean of 9.7 mg/dL and a standard deviation of 0.5 mg/dL. Individuals with calcium levels in the bottom 5% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry
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Assignment7: Problem 5 (1 point) Parallelogram ABCD has vertices A(4, 4, 4), B(4, 2, 4), and C(2, 1, 2). Detj'nine the coordinates of point D: D = (Cl-C] D) Determine the area of parallelogram .4300 Area = [3 (Note that the points .4300 are assumed to be labelled consecutlvely for the parallelogram as usual.) Note: You can earn partial credit on
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pls answer these equations . 10 : 11 . 1 : 12 4 1 13 b. Graph the equation. What part of the graph represents this situation? Show your work. Here
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Fill in the Blank Question Fill in the blank question. For any whole numbers a and b, a b is a unique whole number. This statement explains the property for multiplication

Motorcycle Diaries" Cul era la ltima meta del viaje que hicieron? Question 9 options: Curar la lepra completamente. Casarse con mujeres chilenas. Celebrar el cumpleaos de Alberto en la Pennsula de la Guajira, el punto ms norteo de Amrica del Sur. Celebrar el cumpleaos de Alberto en el Cabo de Hornos, Tierra del Fuego, el punto ms sureo de Amrica

7/ 10. Below is a frequency distribution for the heights of a class of 5th graders, in terms of leftover inches when measured in feet. Draw a histogram, then approximate the mean of the distribution. Inches Frequency 0-1.9 2 2-3.9 4 4-5.9 7 o + 6- 7.9 51 8-9.9 0 10-11.9 133 18 N 1 1 15 2 2, 5 3 3 . 5 4 4. 5 5 5.5 6 6. 5 7 7.5 8 8.5 9 9.5 10 10,5
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Please solve this !! Find the total surface area of the composite shape shown below: 3 in 5 in 3 in 8 in
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Translate the following statement into a confidence interval for p and approximate the level of confidence.Show your work. In a survey of 1000 U.S. adults, 19% are concerned that their taxes will be audited by the Internal Revenue Service.The survey's margin of error is plus or minus 3%.

The entire graph of the function % is shown in the figure below. Write the domain and range of /1 using interval notation. (a) domainzm (0O [oo (o0 (b) range = D o0) @ e
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Q: In a study to support drug discovery for patients with lung cancer, patients were divided into3 groups based on the severity of the disease. Smoking and alcohol consumption habits were recorded for all3 groups. Is this an example of an observational study or experimental study? Select the correct answer below: A. The study is an experiment. The

Find the center and radius of the circle shown below. Then sketch its graph. (x - 3)2 + (y - 1)2 = 25 . . . . . . Use the graphing tool to graph the circle. Click to enlarge graph 4
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1 / 1 pts Suppose you have 7 events - A, B, C, D, E, F, and G. How many pairwise comparisons would you need to do to complete a pairwise ranking matrix? 7 7! (= 7 x 6 x 5 x 4 x 3 x 2 x 1) Correct! (7)(7-1)/ 2 = 21 7^2 = 49 (a) What is the equation for calculating the number of pairwise comparisons in a pairwise ranking matrix? (b) Why is knowing

1.If we increase our food intake, we generally gain weight. Nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories. In one study, 16 nonobese adults, aged 25 to 36 years, were fed 1000 calories per day in excess the calories needed to maintain a stable body weight. The subjects

The amount of money in a savings account after t years is represented by the function f(t)=500(1.015)t. What does the value 500 represent in this situation? Responses The initial amount in the account is $500. The initial amount in the account is $500. The amount of money in the savings account is 500 times the amount of the previous year. The

Use the revenue and cost functions below, to answer parts (A), (B), and (C). R(x)=80x-3x?> 1 0 5 10 15 20 25 30 35 = X Thousands of advertising dollars = (AIN'(x)= (B)N'(10)= (Type an integer or a decimal.) Interpret N'(10). Choose the correct answer below. (O A. Atthe $36.6 thousand level of advertising, sales are increasing at the rate of 10
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content area top Part 1 Decompose v into two vectors, Bold v 1 and Bold v 2, where Bold v 1 is parallel to w and Bold v 2 is orthogonal to w. vequalsBold i minus 4 Bold j, wequalsBold i plus 2 Bold j

What is the area between the mean and z for a z-score of .75? Group of answer choices 0.2875 0.2734 0.2580 0.2798

Question 13: What would happen if you executed a DTP twice by mistake
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Provide a trigonometric equation. Considering only the space between = 0 2, the equation must only have solutions at = 1 and = 2. Explain your thought process and the work you did to create the equation. You may round decimal values to 3 places.

Managers of an outdoor coffee stand in Coast City are examing the relationship between (hot) coffee sales and daily temperature, hoping to be able to predict a day's total coffee sales from the maximum temperature that day. The bivariate data values for the coffee sales (denoted by y , in dollars) and the maximum temperature (denoted by x , in

I need help on the steps for each of these questions. Thank you

Which subtraction model (take -away, missing addend, comparison, or measurement) corresponds best to the problem? Last year the hatch- back model of a new car cost $18,022. This year's model costs $19,256. How much more does this year's model cost

Taber invested money in an account where interest is compounded every year he made no withdrawals or deposits the function A(t)=525(1+0.05)^t represents the amount of money in the account after t years how much money did taber originally invest

Is my approach corrrect for the following: Let Y1,Y2,Y3, ... be (not necessarily independent) exponential random variables, such that Yn has parameter n = 2^n. Define a new random variable Z as follows: Z = Yn n=1 Allow yourself to use the linearity of expectation, E [Y1 +Y2] = E [Y1] + E [Y2], even in this countably infinite case. Then use

ow many integers are there between 100 and 500 inclusive that are divisble by 5

Dari hasil pemeriksaan terhadap wajib bayar PNBP ditemukan bahwa wajib bayar tersebut kurang membayar PNBP sebesar Rp 900.000,00. Wajib bayar PNBP menyetujui hasil pemeriksaan tersebut dan melakukan pembayaran 1 (satu) bulan setelah hasil pemeriksaan ditandatangani. Wajib bayar melakukan pembayaran ke Kas Negara sebesar Rp900.000,00 sesuai dengan

CLICKER QUESTION #1-9 IS THERE LIFE ON MARS? A random sample of 160 scientists is asked whether they believe that life once existed on Mars. Eight of them do, and 152 do not. If the true proportion of scientists who believe life once existed on Mars is 5%, what is the probability of eight or fewer answering \"yes\" in a sample of this size? What
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100 points Exam 2: Chapter 3 Materials Allowed: You may use your book, notes, and scientific or graphing calculator. It is acceptable to use an online scientific or graphing calculator such as Desmos or GeoGebra. You may use any content (notes, videos, book] from 02L or WebAssign. Materials Not Allowed: You cannot work with other people. You may
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11) Write an APA-style Results section based on your analysis. All homework "Results sections" should follow the examples provided in the presentations and textbooks. They should include the statistical statement within a complete sentence that mentions the type of test conducted, whether the test was significant, and if relevant, effect size
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All nonAmericans are nonfarmers In the Venn diagram, this is represented by.... Show answer choices Shading section 1 of the Venn diagram Shading section 2 of the Venn diagram Shading section 3 of the Venn diagram Shading section 4 of the Venn diagram Marking an X in section 1 of the Venn diagram

Nixon Corporation manufactures computer monitors. The following data are the numbers of computer monitors produced at the company for a sample of30 days. 24 32 27 23 33 33 29 25 23 28 21 26 31 22 27 33 27 23 28 29 33 35 34 22 26 28 23 35 31 27 Construct a frequency distribution table using the classes 21-23 ,24-26 ,27-29 ,30-32 , and33-35 to

Question ( Watch Video ' ' Show Examples Connor invested $59,000 in an account paying an interest rate of 2.6% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest hundred dollars, would be in the account after 12 years
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Problems in Regression Market Strategy From the following market-segmentation study below, present three regression models for consumer durable goods expenditures (C) as a function of all possible combinations of net income (I) and family size (F) .Please provide regression results along with regression equations.Analysis should be done using
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MICHAEL KWIATKOWSKI - CRIB SHEET QMS 102 QUIZ I Classification of Data Quantitative Data (Numerical Data): numeric data resulting from measuring. A set of quantitative data can either be discrete or continuous Qualitative Data (Categorical Data): usually non-numeric data that describe an attribute or characteristic of the items being studied. For
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which value for theta is a counterexample to sin^2 theta + cos^2 theta = tan^2 theta as an identity? a) pi/4 b) pi/3 c) 5pi/4 d) sin^2 theta + cos^2 theta = tan^2 theta is an identity

what's the answers Percentile INAL 21.19 24.20 71/43 Porecritic 51 54 FIST 30. What percentage of soorgs lica between $15 and 5437 (b) 47.7% id) 95%% 2. The average person has in 10 of 100, and wants are normally doinbuild with a soundand deviation of 15 points. What percentage of people has in 10 ahave 1157 (b) 15.87% Assure that a wet of best
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Consider the function f(z, y) =ry - 2s' defined over its natural domain. Compute the integral using polar coordinates, and then check the result using Green's formula. Here, D is the ellipse in the figure: D
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What are whole numbers, fractions, and decimals and how will I use these concepts in my healthcare career? This assignment helps you apply your knowledge from this week's modules and textbook readings. Employers in the healthcare industry expect employees to have mathematical knowledge and skills in order to properly manage data, records,

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.) =4; =2 P (3 x 6) =

after math practice on thursday, the holiday math term drove to whataburger in witchia falls for dupper. the principal gave them $50 to spend. they ordered 5 cheeseburger combos. a combo cost $7.85 plus tax. if the tax rate is 8.25% amd if am apple pie cost $1.25, how many apple pies could they order

Begin this essay by clearly defining the Power Elite Theory by C. Wright Mills, and Differential Association Theory by Edwin Sutherland. Don't forget to include citations of where you found these terms. Then consider the following: If we assume that the power elite's status is always passed down from generation to generation, how would Edwin

IIn 2016, two Danish social science researchers used data scraping software developed by a third collaborator to amass and analyze a trove of public user data from approximately 68,000 user profiles on the online dating website OkCupid. The purported aim of the study was to analyze "the relationship of cognitive ability to religious beliefs and

5 Solutions No credit will be given without supporting work. 1, (a) E(X) = 0 x 1 3 e x x dx = 3. Set Mn = X1 X2 Xn n . By WLLN, we have Mn P 3, i.e. for all > 0, lim n P (|Mn 3| ) = 0. For = 1, {Mn > 1} {|Mn 3| 1} lim n P (Mn > 1) lim n P (|Mn 3| 1) = 1 lim n P (|Mn 3| > 1) = 1. (b) E(Y ) = 0 y3e3y dy = 1 3 . Set Mn = Y1 Y2 Yn n . By WLLN, we have

Fast reactions: In a study of reaction times, the time to respond to a visual stimulus x and the time to respond to an auditory stimulus y were recorded for each of7subjects. Times were measured in thousandths of a second. The results are presented in the following table. The results are presented in the following table. Visual -- 161 176 178 188

A firm that sells software services has been piloting a new product and has records of 500 customers who have either bought the services or decided not to. The target value is the estimated profit from each sale (excluding sales costs). The global mean is about $2500. However, the cost of the sales effort is not cheap?the company figures it comes
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26. Earlier in this chapter we described a study by Bartholow and Anderson (2002) examining how the experience of violence in video games influenced aggressive behavior for males and females. Their results suggest that increased violence increase aggressive behavior for males but has little or no effect for females. The following data are measures
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Let (X. Y. Z)T, t2 0, be a joint-Gaussian process with each component a Brownian motion with means E[X] = -2t E[Y] = t . E[Z] = -4t variances . var(X) = t var(Y) = 2t . var(z) = 9t and covariances cov(x, Y) = -min (t ) cov(X, z) = -2 min (t. s) . cov(Y, Z) = 4 min (t. s). Define the process G. = -t - 57 + 2Y, t> 0. (a) Find the distribution of G,
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Consider the set of bivariate data shown in the table. X 2 3 4 5 y 5 14.5 20 21.2 21 4 24 1 24.8 Compute
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A human resource director wants to determine if there is a dependence between day of the week and the number of times employees took sick leave on that day. Open sick leave (see attached Excel Data) Test HO: Monday = Tuesday = Wednesday = Thursday = Friday = Saturday. Keep your Excel file open for the following 3 questions. The chi square
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A body of mass 5 kg is held in equilibrium under gravity by two inextensible light ropes. One rope is horizontal and the other is inclined at an angle to the horizontal, as shown in the diagram below. The tension in the rope inclined at to the horizontal is 72N. Find the angle , giving your answer to the nearest degree.

1)Are whites more likely to claim bias? It was found that 60% of the workers were white, 30% were black and 10% are other races. Given that a worker was white, the probability that the worker had claimed bias was 30%. Given that a worker was black, the probability that the worker had claimed bias was 40%. Given that a worker was other race, the

Evaluate limit as x rightwards arrow short dash 2 of fraction numerator short dash 2 x minus 3 over denominator open parentheses x plus 2 close parentheses squared end fraction numerically. a.) short dash infinity b.) Does not exist c.) 0 d.) infinity

1. Qu recomienda que haga una persona para ayudar a alguien inconsciente? Incluya TRES PASOS (steps)

This is the data sheet for the assignment and I'll send the other part too \f
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5 Make a decision about the given claim. Use only the rare eventrule, and make subjective estimates to determine whether events are likely. Forexample, if the claim is that a coin favors heads and sample results consist of 11 heads in 20flips, conclude that there is not sufficient evidence to support the claim that the coin favors heads(because it

Problem 1: (8 points, 4 points each) Solve the following systems and draw a phase portrait (a) x'=Ax A=[_11 j] (b) ,_ _ 11 xAx A[l 3]
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Use R to solve. 20 northern red oak seedlings exposed to a fungus were grown in a greenhouse. All seedlings were planted in the same type of soil and received the same amount of sunshine and water. Half received no nitrogen at planting time, to served as a control, and the other half received 368 ppm of nitrogen in the form NaNO 3 The stem

Recall that the auto-covariance function (h) of a stationary process is a function that for all h satisfies (i) (0) 0, (ii) (h) (0), (iii) (h) = (h) (even function) and (iv) is non-negative definite. In fact we can prove that "any real-valued function defined on the integers is the auto-covariance function of a stationary time series if and only
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uiz 5 on Europe Quiz 6 is below Quiz 5 1. What is Brexit exactly

Is the statement "Superposition is a necessary but not sufficient condition for entanglement" true or false? Why? If it helps to give an example, please feel free to. Be careful to not massively over-answer this question, there are only really two key ideas needed to lock this down

In a bumper test, three test vehicles of each of three types of autos were crashed into a barrier at 5 mph, and the resulting damage was estimated. Crashes were from three angles: head-on, slanted, and rear-end. The results are shown below. Research questions: Is the mean repair cost affected by crash type and/or vehicle type? Are the observed

A portion of road A climbs steadily for 182 feet over a horizontal distance of 2600 feet. A portion of road B climbs steadily for 187 feet over a horizontal distance of 3400 feet. Which road is steeper? Question content area bottom Part 1 Which road is steeper? road A road B

FOR A POPULATION WITH A MEAN of = 75 and a standard deviation of = 10, WHAT IS THE STANDARD ERROR OF THE DISTRIBUTION OF SAMPLE MEANS FOR EACH OF THE FOLLOWING SAMPLE SIZES? FOR A SAMPLE OF N = 4 SCORES: m = __________ FOR A SAMPLE OF N = 25 SCORES: m = ______________

Convert the following degree measure to radians. 66.9degrees . . . Question content area right Part 1 66.9degreesequals enter your response here radians (Type an integer or a decimal. Round to the nearest thousandth as needed.)

The marginal propensity to consume (MP0) is 0.60. The multiplier is 2.5 . (Round your answer to one decimal place.) Suppose that investment changes by $ - 300. The change in real GDP will be $|:|. (Round your answer to the nearest dollar.)
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Use the following data obtained from a study of the weights of adult men to answer the following questions: Mean: 180 lbs Median: 185 lbs Mode: 182 lbs Standard Deviation: 29 lbs a. [1 pts] What is the most common weight? (Grade breakdown: 1 for answer; 1 for explanation) b. [1 pts] What weight did half of those surveyed exceed? (Grade breakdown:

I have to make three original limericks that are powerful and witty. They shouldn't be nonsense poems.

The Influenza vaccine should be given annually. True or False? Group of answer choices True False

A state's Department of Education reports that 12% of the high school students in that state attend private high schools. The State University wonders if the percentage is the same in their applicant pool. Admissions officers plan to check a random sample of the over 10,000 applications on file to estimate the percentage of students applying for

A recent study by Ohio State University reported atScience Dailysuggests that students with cell phones may take more risks than students that do not have cell phones. In a sample of 305 Ohio State University female students, 128 (42%) responded that if they had a cell phone, they would be willing to walk somewhere after dark that they would

Give a matrix that performs these transformations, in order of 1 then 2, on the Cartesian plane. (1) Vertical shear by a factor of 3 (2) Horizontal shear by a factor of -2

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Need help with the question in attached pic. Do not understand how to solve Here are summary statistics for randomly selected weights of newborn?girls: Construct a confidence interval estimate of the mean. Use a 95?% confidence level. Here are summary statistics for randomly selected weights of newborn girls: n = 175, x=29.2 hg, s =7.8 hg.
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Give the coordinates for the inequality and the shaded region \f
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43. (a) 1 mark What do you understand by an arithmetic mean, in reference to arithmetic sequences? (b) i. 1/2 mark Is it always possible to insert an arithmetic mean between any two given numbers? i. ii. 1/2 mark How many arithmetic means can be inserted between any two given numbers? iii. 1 mark Briefly describe how to insert arithmetic means
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Find the vertex, y-intercept, and direction of the following quadratic function. f(x)=1x2+4x+3 x-coordinate of vertex: y-coordinate of vertex: y-intercept:

If a die is rolled 3 times, find the probability of getting at least 1 odd number. Give the answer as a decimal. Of all CCP students, 60% have been born in Philadelphia.If 3 students are selected at random, find the probability that at least one student was born in Philadelphia. Give the answer as a decimal. A quiz consists of a true/false

When shopping for furniture, a couple finds a sofa for $2000 and a coffee table for $700. The store is running a holiday sale. If the sofa and coffee table are purchased together, the coffee table will be 30% off. What is the cost of both the sofa and coffee table during this sale

What would be the negative consequences of having a sample size that is larger than required to achieve adequate power?

2. The current circulation of the Investor's Digest is 3,000 copies per week. The managing editor of this weekly projects a growth rate of 4 + 5t%/3 copies per week, weeks from now, for the next 3 years. On the basis of her projection, what will be the circulation of the digest 125 weeks from now? \fFind the average value of the function f(z) =
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pop down options are: regression sum of squares, total sum of squares, and error sum of squares. and for the second pop down the options are the column sums: 6.4116, 5.7292, and 12.1720 Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in the scatter plot in Figure
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