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Mathematics Questions and Answers October 11, 2021

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Timothy and his brothers are selling lemonade and cookies to raise funds for a camping trip. Paul bought two cups of lemonade and two cookies for $3 and Nancy bought three cookies and two cups of lemonade for $4.00. What is the cost of a cup of lemonade?

F=[ , , ] thank you! In physics and engineering, one often times has to calculate a force an object experiences due to a change in velocity, F = Vv. Suppose that a space ship's velocity is described by the following equation: v(x) = v(5, y, z) = 12yz2+2z2+ 22 Compute an approximation for F = Vv at x - [1.00 1.00 1.00) for a perturbation h - 0.1
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Which factor(s) must you consider when making up a towing bridle Select one: a. The horsepower of the tug b. The desired amount of swing in the tow hook up c. The weight of the tow d. All of the above

A word for: Two things are closely related and vary together, but we cannot state whether one caused the other, or that a third thing caused them both

How many six-digit even numbers less than 200 000 can be formed using all the digits 1, 1, 2, 2, 3, and 5?

Problem 1 (8 points) Consider the problem of nnimizing the objective function f(x) : (x5 +1:2 1}2 +(x1 Hag11)2 (a) (1 point) Derive a symbolic formula for computing the gradient of f(x) . 2 (b) (2 points) Is it = [3 a minimizer of f(x) 1' To earn credit, give sufcient reasons to explain your claim. 1 1 iterate x1 . In the calculations, use 6:0 2
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A second version of the Markowitz portfolio model maximizes expected return subject to a constraint that the variance of the portfolio must be less than or equal to some specified amount. Consider the Hauck Financial Service data. Mutual Fund Year 1 Year 2 Year 3 Year 4 Year 5 Foreign Stock 10.06 13.12 13.47 45.42 -21.93 Intermediate-Term Bond
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Need help ..Thank you (a) (2 marks) Consider the following sets: . A =Z-XR . B = Zx xER: x
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I need all the answers for my geometry work CHAPTER 6 Practice . Pythagorean Theorem 59 Lesson 6.5 Find the length of each unknown side. 1. 2. 3. 11 yd 11 yd C 15 in. 8 in. CE C= 4. 5 cm 5. 15 0 6. 10V/2 cm 12 0 20 in. C 16 In. b
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Find two vectors that are both orthogonal to vector f = 2, 2, 3. Be sure they are linearly independent vectors

If a regression analysis determines the correlation coefficient to be 0.18, the coefficient of determination will be ______.

In the diagram of circle C, ST = 48, and CU = CV = 10. Find the radius of circle C. R Q 10 C 10 V S T 48 The radius of circle C =
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Complete the table and graph the following functions. Then answer the review questions. Please complete this activity in pencil. Papers completed in ink will not be graded and receive a zero. l.y=x -3 -2 -1 0 1 2 3 Domain: Range: Symmetry: Even I Odd 2' Neither _5 x-intereept(s): y-intercept: Largest interval of the domain over which the function
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For #7 - #9, let A = NNW WN F 7. Is the vector in nul (A)? 8. Is the vector N UP |in col (A)
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thank you for helping 34 Suppose the profit from selling a certain product is given by P = 10,000e0.3x, where .x is the number of years the product has been on the market. How many years must the product be on the market in order to have a profit of $ 30,000? Furniture costing C = $2000 now depreciates according to V = C | 1 - where N N = 10 and t
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1.Assume that a simulation model of an industrial process has just been completed. a)A sample of output from the process and the simulation model appears below: Observation History Simulation 1 111 109 2 113 106 3 76 126 4 83 98 5 104 96 Is there evidence to believe that the simulation adequately represents the real system with relation to this

QUESTION 4 Eight pieces of paper are numbered 1 through 8 and then placed in a hat. Two pieces of paper are drawn at the same time. What is the size of sample space? 64 36 26 28 QUESTION 7 The standard deviation gives a measure of how much the values in a set of data are spread out from the median. True False

Suppose that y varies inversely with x, and y = 6 when x - 3. (a) Write an inverse variation equation that relates x and y . Equation: (b ) Find y when x = 9
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Identify any relative maximum or minimum and intervals on which the function is decreasing and increasing \f
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Qu evento importante marc la vida del doctor antes de la noche del 24 de diciembre de 1976? Su hermano muri. Su amigo el taxista muri. Su esposa muri. 2. Qu le sucedi al doctor tres meses antes de la muerte de su esposa? Perdi su licencia de mdico. Su madre muri en un accidente. Su padre muri en el hospital. 3. Por qu estaba frustrado el doctor

Pre calc - binomial theorem Question 24 (1 point) Use the following to answer the following fill-in-the-blank question. Six statements about the expansion of ( 2ac2 - 1 n are shown below. Statement 1 The expansion contains n - 1 terms. Statement 2 The expansion contains n terms. Statement 3 The expansion contains n + 1 terms. Statement 4 The
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For the piecewise function, find the values h(-9), h(2), h(3), and h(5) - 5x - 17, for x
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. Suppose the function f(t, x) is piecewise continuous in t and locally Lipschitz in x uniformly across t in [t0, t1]. Problem 3. Suppose the function f (t, 3:) is piecewise continuous in t and locally Lipschitz in a: uniformly across t in [150,151]. Let W be a compact subset of R\". Show that SUPte[to,t1],mEW | f (t, 3:)| is nite. Hint: One
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Help me solve this !1 Consider a student loan of $22,500 at a fixed APR of 9% for 20 years. a. Calculate the monthly payment. b. Determine the total amount paid over the term of the loan. c. Of the total amount paid, what percentage is paid toward the principal and what percentage is paid for interest EOLITD, - a. The monthly payment is $ 202.44 .
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Let A = 1 2 3 4 1 2 3 4 2 4 6 8 3 6 9 12 Use the Cayley-Hamilton theorem to formulate A n . Use induction to prove that the formula holds, hence calculate A 21 .

Lisa's Home Income Tax business operates only during tax season. This year Lisa grossed $28,605 including GST. She also spent $5756 before GST on her paper and supply purchases. If Lisa is voluntarily registered forGST, how much does she owe the Canada Revenue Agency forGST?

According to the central limit theorem, when sample size is large enough, np > 10 and n(1-p) > 10, the sample proportion, will approximately follows a normal distribution with mean p and standard deviation p(1-p). TRUE or FALSE

Help 1 . Use two of the given statements together to complete statements about the diagram to illustrate the Corresponding Angles Theorem. Then write its converse. By the theorem: If , then 41 ~ 4 By its converse: 2. Use two of the given statements together to complete statements about the diagram to illustrate the Same-Side Interior Angles
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1. Based on past musical productions, a theater predicts selling 400 - 8p tickets when each ticket is sold at p dollars. 1. Complete the table to find out how many tickets the theater expects to sell and what revenues it expects to receive at the given ticket prices
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The role of the sample mean in a confidence interval estimate for the population mean is to determine: Group of answer choices the sample size needed the confidence coefficient 1 - the margin of error in the estimate all of these none of these

4. In columns E and F, calculate "Daily Gains" and "Cumulative Gains" for your Euro FX futures position in Q1 and Q2. Calculate these values in Excel. Do not manually enter the values. If I don't see Excel calculation behind your answers, I'll assume you copied someone else's answers, which is not acceptable for an individual project. (Hint:
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You are applying urea (46-00-00) at a rate of 150 lbs N per acre. If you have 12" row spacing how many mg urea/cm of row will you be applying? I got this far, but don't know how to do the calculations: (150 Ibs N / Acre)(Acre / 43,560 sq ft)(1 sq ft / ft row)(Acre / 12 in)(in / 2.54 cm)(1,000,000 mg / kg)(100 mg Urea / 46 mg) = mg/cm

Need help understanding this concept for the set A = Z and a fixed number n e N define a binary on A by 46 4 be a is divisible by n
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5 parts to it. work needs to be shown 200 The number of deer on a peninsula is modeled using y = where .x is in years. 1+ 4e-x' How many deer will there be in 4 years? 11 The value of a motorcycle after / years depreciates according to v = 2000 Find the value of the motorcycle after 3 years. The population of a mining town is given by P(!) = 480 ,
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9-1 t tests and the cost of Levi's jeans and H&M dresses in Halifax: Numbeo is a crowd-sourced Web site that gathers data on cities and countries around the world (numbeo.com/cost-of-living). The data are searchable by city or country. For example, when we looked up Halifax, Canada, we discovered that a pair of jeans ("Levis 501 or similar") goes

In performing a line search for an objective function, F(X1, X2), presume that you have sampled the following three points: F1(-2, -2) = 11, F2(2, 6} = 10, and F3(3, 8) = 15. a. What is the search direction (expressed as a unit vector)? (Presume that F1 is the initial point of the line search) Note: W 3:0 to x1 D \"th0 x1\" b. Is the minimum
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Use the following functions to evaluate the expressions (if possible) in questions 9-16: f (x) = 2x +6 g(x) = Vx h(x) = = j(x) = 3x2 9. (f - 9) (25) 10. (f x h) (8) 11. (h x ))(x) 12. (f + g + h+ ))(1) 13. (j + h)(x) 14. h(g(9)) 15. (j . h) (x) 16. (j . f . g) (4)
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A doctor believes that the average age of single mothers is 20 years.A random sample of 10 single mothers was drawn from a Obstetrics Clinic. Their ages are 22, 17, 27, 20, 23, 19, 24, 18, 19, and 24 years. In a test to determine if we can infer at the 5% significance level that the population mean is not equal to 20, what is the research or

(10 puntos) Parte II. Instrucciones. Plantear correctamente el problema por programacin por metas, resolver el problema con POM y obtener conclusiones. Una empresa tiene que determinar cuntos televisores y minicomponentes debe mantener en existencia. La compra de un televisor cuesta $300 dlares y de un minicomponente $200. Un televisor requiere de

Lesson 3: Making Scaled Copies Cool Down: More Scaled Copies 1. Create a scaled copy of ABC D using a scale factor of 4. & 2. Triangle 7 is a scaled copy of Triangle M. M 10 Select all the sets of values that could be the side lengths of Triangle Z. a. 8 11,and 14. b. 10, 17.5, and 25. C.6, 9 and 11. d. 6, 10.5, and 15. e. 8, 14, and 20
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8. Finally, Dr. Banner is curious if arrest productivity is related to the shift the officer works. Is there are a relationship between arrest productivity (before and after) and shift? Make sure to use the 6 steps and list your answers for each step on your answer sheet for this test
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Choose correct answer and give detailed explanation..... Given a point (-3, -2, -1), the new y coordinate of this point after applying rotation of -90 about the x-axis is O a. -3 O b. 2 OC. -1 O d. None of the above Clear my choiceGiven an input point as (3, -4, 5), then after applying reflection about the xy-plane, the new y coordinate is O a. -4
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State the domain of the function. Justify your domain restrictions. 2x -10
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Vectors 1. In the case that n = 2, sketch the following. a. R' = {ce Re > 0) where 0 is the vector with each component equal to 0. c. c, y, c ty, 3 . x, and -4 . y when a = (2,9) and y = (3. 1)
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from applied numerical methods with matlab for engineers and scientist 4th edition 14.41 Repeat Prob. 14.40, but for a two-dimensional ran- dom walk. As depicted in Fig. P14.41. have each particle take a random step of length & at a random angle & ranging from 0 to 2r. Generate an animated two panel stacked plot with the location of all the
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Answer the following question manually and show your process Previous Problem Problem List Next Problem Integrate the function f(x, y) = (x2 + y) 4 over the region E that is bounded by the xy plane below and above by the paraboloid z = 4 - 9x2 - 9y using cylindrical coordinates. 2pi 2/3 4-9r^2 ( x2 + 12 ) A dV = dz dr d0 = E 0 0 0 For your answers
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9. The sign at the tee off area for a hole on a golf course indicates th yards from the tee. The golfers drive went to the right. The caddie drive to be 230 yards. The yardage markers indicate the ball is still from the hole. Determine the angle the golfer went off line from the drove the ball
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Use the elimination method to find all solutions of the system: x2 + y2 = 8 202 - 22 = 2 The four solutions of the system are: (the one with x 0 is) C = y (the one with x > 0, y 0, y > 0 is) y
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question related to factorial permutation You have a class of 12 students. In how many ways can you arrange the students to take a picture if Paul, Robert and Maria refuse to stand next to each other. 0 a) None of the numbers shown here. O b) 479,001,600 0 c) 399,168,000 0 d) 476,824,320 0 e) 478,961,280 0 f) 478,638,720
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Find the area of the hatched piece in square centimetres. 3 cm 78 degrees 18 cm
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Respond to the following in a minimum of 175 of your own words: Where do we see geometry in nature? How has this course helped you to appreciate the application you selected?

=le 1 VW EUUUIE APRIL 8, 2019 By Jeanette Farrara Have you cut back on meat recently? Or maybe you're thinking of ditching it for good If s0, vou're one of manyincluding celebrities like Beyonc, Jay-Z, and Liam Hemsworthopting for a more plant-based diet. Though only 7% of consumers identify as vegetarian, more than 36% use meat alternatives on a
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A quarter rest is worth one silent beat. Group of answer choices true false

2.Consider the data 3, 8, 11, 15, 25, 30, 32, 33, 40.If = 31.6, what is ? (2T)

Draw the Karnaugh Map for the function. Use the information from a Karnaugh Map to determine the simplified sum-of-products Expression. Draw the simplified sum-of-products Expression in Xilinx ISE Simulate minimized SOP circuit in Xilinx ISE to verify construction against the given Truth table

I. Use mathematical induction, a basis proof, a inductive hypothesis and step to solve: n N, n i=1 i!(i 2 + 1) = (n + 1)!n. II. Give a recursive definition for the set of all strings of 0's and 1's for which all the 0s follow all the 1s.

I just need help with number 9 and number 13 \f
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Ian? s e 1. Sample space is dened as... A. A list of all possible outcome C. A diagram of all possible outcomes B. The likelihood of an event occurring D. Drawing a possible outcome. 2. Which method is used in an experiment that is tabular in form? A. Table C. Tree Diagram B. Systematic Listing D. Fundamental Counting Principle 3. The Triangle Sum
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Hello tutors I need help answering questions 1, 2, 3, 4, 5, 6, 7. Standards & Objectives Writee your academic and technology standards in the space below. 1st grade and Math PK.N.1 Know number names and count in sequence. PK.N.2 Count to tell the number of objects. Standard 1: Number Sense and Operations - Students will develop and apply concepts

The scores of the Scholastic Aptitude Test's math portion (SAT Math) are scaled so that their mean is [1: 5 00{"version":"1.1","math":"imu=500"} and their standard deviation is U = 1 1 0{"Version":"1.1","math":"\\sigma = 110"}. An educational psychologist claims that students who have had four years of high school English will score higher on the
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Identify the form of the following equation. y=5x Group of answer choices Slope-Intercept Form for a Linear Equation Expanded Form for a Circle Equation Point-Slope Form for a Linear Equation Standard Form for a Circle Equation Standard Form for a Linear Equation

Please solve the following question , I will rate positive but Image quality and writing should be good Using L = =Vy/2 -xv 3 6 find the Noether symmetries and corresponding gauge terms
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1)Assume that women's weights are normally distributed with a mean of 143 pounds and standard deviation of 29 pounds (based on data from the National Health Survey). Find the weight separating the bottom 35% from the top 65%. 2)Assume that women's weights are normally distributed with a mean of 143 pounds and standard deviation of 29 pounds (based
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The curve with polar equation r=g 3 is called a hyperbolic spiral. For example, the hyperbolic spiral r = a is graphed below To convert r = D / W into Cartesian form, set x and y to be functions of r and 0: . X= y Then we can simplify the expression x + y2 in terms of O alone: (2 + 12 = Because 0 = tan we can eliminate O from the previous
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If n(AUB) = 17, n(AnB) = 8 and /(B) = 13; find n(A').
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Give two examples of Dividing Radicals. Make sure to list your steps.

. Prove that x is an odd integer if and only if 5x 1 is an even integer(using bi-implication proof)

b $2 4 Determine the intersection points of the system of equations {9' 2 2 . Provide the points in ascending order of the :ccoordinate. If two points have the y _ 3? same :ccoordinate, provide rst the point with the lowest yvalue: First point: [ , } Second point: [ , l Determine if the following points are solutions of the system of inequalities.
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A researcher is interested in examining the cholesterol levels of heart-attack patients. Cholesterol levels are measured for 28 heart-attack patients (2 days after their attacks) and 30 other hospital patients who did not have a heart attack. The researcher believes that cholesterol levels will be higher for the heartattack patients. Random

A college professor in Introductory Biology notices that the final exam scores in BIOL 101 seem to be a bit lower than those of the midterm.The professor suspects that these college students are burned out at the end of the semester and that "burn out" is causing lower final exam scores. To tests this hypothesis that the final exam scores are

Exercise 8.4.7: Suppose : R \ R is a rational function, that is, : R R and : R R are polynomials, is not identically zero, = 1(0), and = . Show that is continuously differentiable

"SMARTY" has hired " IT smart " to provide IT support service. Sammiwould make a request for a detailed checking of thecompany'scomputer network if there are more than 3 days in a week (7 days) that there is more than 1 interruption in thecompany'scomputer network in a day. (a)What is the probability that there is more than 1 interruption in the

HAHS(s) NH3(8) + H25(8) Keg = 8.5 x 10-3 a) A reaction mixture at this temperature containing solid NH HS has [NH,] = 0.166 M and [H,S] = 0.166 M. Is this system at equilibrium? Explain, based on your calculated Q value. [3 marks] Q = ( N Hy ] ( HS ) (NHLS = CHS) 20.166M b) Will more of the solid form or will some of the existing solid decompose
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Case 2: Mini Survey Conduct a mini survey using an appropriate statistical method. In order to collect data (for your mini survey), you need to design a questionnaire which will be distribute to your respondents. You need to collect 2 groups of sample to carry out this mini survey. For each group of sample, your respondents shall be sets between

A t-test conducted to compare inpatient units with new fall alert systems to units without the system showed that patients who fall on units with the alert systems had less severe injuries, with a p-value of 0.04. What does this number mean? Question 3Select one: A. We cannot draw any conclusions without knowing the sample size. B. The results are

Using the food cost percent method, what is the sales price for a dish with a cost per portion of $2.61 and a food cost of 33.5%?

Need help..Thank u 7 Question ( "ibei 3) : If X is a R. V. with a distribution function F(x) and pdf f(x), then the pdf of Y = -In(F(X)) is Y~ r(1, 1 ) (b ) Y ~ X(1) (c) Y ~ U(0,1) (d) Y ~exp(1) CO b O a O d O
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Final Question: Write a paragraph explaining whether or not you think \"Grading using the Curve\" is fair and WHY. Consider how the grades were affected in BOTH classes. Give a statistical argument, don't just give your \"feelings\". Use complete sentences and proper grammar
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In mathematics, it is often helpful to understand simple examples first. In this question you will study the behaviour of eigenvalues of 2 > 4det(M). 2. Prove that M has one real eigenvalue of algebraic multiplicity two if and only if: (a, + (1)2 : 4det(M). matrix
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Question 9) Use the "Factors Related to Smoking in College Women" article to answer the following questions: a). Examine table 1, what statistical test has been used? 1. Chi-square test 2. T-test 3. Analysis of variance (ANOVA) 4. None of above c) What variables are significant? 1. Only race 2. Only Alcohol use 3. Both race and alcohol use 4.
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I have 3 history books, 5 mathematics books, 4 poetry books, and 8 novels.In how many ways can I arrange them on a shelf if there are no restrictions? b) If the books of each type must stay together as a group? c) If I choose six books, how many of these will contain 4 novels and 2 history books?

Answer the following question manually and show your process (6 points) The figure below is an open cylindrical can, S, given by x2 + yz = 1, with a height of 5, standing on the xy-plane. (S has a bottom and sides, but no top.) Let C be the curve at the top edge (the rim) of the cylinder at height 2 = 5; it is traversed clockwise when viewed from
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1. Is this rhythm regular or irregular
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Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate
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7. Find an equation of the circle that satisfies the given conditions: Center at (-2, -4), radius = 4 ( X - 2 ) 2 1
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Calculus 1 Question A farmer wants to make three identical rectangular enclosures along a straight river, as in the diagram shown below. If he has 480 yards of fence, and if the sides along the river need no fence, what should be the dimensions of each enclosure if the total area is to be maximized? side perpendicular to the river yd side parallel
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5. This problem uses the trade.union data in the SemiPar package. (a) Plot the wage as a function of age using a dierent plotting symbol for the dierent union membership of the world. (b) Determine a transformation on the response wage to facilitate linear modeling with age and union membership as predictors. (c) Fit a linear model regressing

A number of people formed a co-operative society with the intention of buying a 250 hectare farm going at sh 60 000 per hectare. After sometime the management of the society realized that the members could not raise the required amount on time. They decided to recruit 40 more members with the result that each member would now pay sh 12 500 less.

Divide each line segment into the number of equal parts specified. Construct the perpendicular bisector of each. 7 Locate the midpoint of each
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A bank offers both adjustable-rate and fixed rate mortgage loans on residential properties, which are classified into three categories: single-family houses, condominiums, and multifamily dwellings. Suppose each loan made in 2020 was classified according to type of mortgage and type of property, resulting in the following table. Single-Family

A pilot was scheduled to depart at 4:00 pm, but due to air traffic, her departure has been delayed by 15 minutes. Air traffic control approved a new flight plan that will allow her to arrive two times faster than she calculated in her original flight plan. Let x represent the time, in minutes, of her original flight. Create an equation that can be

In words explain in 1-3 sentences why this answer is correct. What is the median for the following set of scores: 8, 10, 11, 12, 14, 15 Answer 11.5

\f(c) Find all 3 eigenspaces of matrix A. Show work (Note: You should be able to evaluate the determinant by hand without using matlab's roots function) Stipulation: To show work, you must set up the necessary nullspace equations (A - An1 ) v = 0, and also, write out all the row reduction steps that lead towards the answers for each eigenvector of
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Simplify the expression 4x - 3(x - 2) - 2(x + 1)
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5. In the following diagram it is known that AB = ED and C is the midpoint of BD. Fill in the missing reasons to the proof below to show that AC = EC. Prove: AC = EC D E A B C Statements Reasons (1) AB = ED and C is the midpoint of BD (1) Given (2) BC = DC (3) AB + BC = ED+ CD (3) (4) AC = EC (4)
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Find the first four terms of the following sequence.An=3(1/2)^n1. Leave your answers as fractions

math 79 linear algebra Please solve the questions correctly. Thank you. Question 8, 1.2.43 HW Score: 86.67%, 13 of 15 points Save O Points: 0 of 1 A system of linear equations with more equations than unknowns is sometimes called an overdetermined system. Can such a system be consistent? Illustrate your answer with a specific system of three
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In a random sample of 500 people aged 20-24, 22% were smokers. In a random sample of 450 people aged 25-29, 14% were smokers. Test the claim that the proportion of smokers in the two age groups is the same. Use a significance level of 0.01 (Show all the steps the hypothesis test and all calculations) Thank you.

3 It is very important that a certain medication contain 2 my of alpha on average You suspect that the manufacturer is not controlling their process and that the average amount is not 12 me A andom sample of 25 tablets gave * = 11 8 my ands = 0 . Smy At a 1 % significance level is the mean different from 12 my ? ( assume individual weights are
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Please do it and give me explannation! (2 points) An instructor is interested in checking whether attending labs improves students' performance on their finals. The instructor asks a TA to investigate this problem. The TA decides to conduct a one-sided two sample t- test. He randomly chooses 30 students in the course who never missed a lab, as
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