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Mathematics Questions and Answers November 04, 2021

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find an equation of variation in which y varies jointly as x and z and inversely as the square of w, and y=105 when x=20, z=3 and w=2

could anyone please help me out with this function question? thanks! Question 5 (10 marks) Let f:D=[5+5] an be dened by x) = 1:91. (a) Use Denition 2.3 to prove that f is continuous at 1:0 E D. Hint: Think of a clever way to write .1:2 x that simplies the problem and remember that D = [5,5]. (6 marks) {b} Is f uniformly continuous on D? Briey
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Use Evolutionary Solver to solve this non-linear program. Max 3x2 + 0.4y3 1.424 s.t. 5 s x s 18 4 s y s 20 4s 2 s 18 What are the optimal values of x, yand 2? (Round your answers to nearest whole number.) Optimal values y What is the optimal value of the objective function? Use your rounded answers for x, yand 2. (Round your answer to 2 decimal
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Write the equation in logarithmic form.Assume that all constants are positive and not equal to 1. 10^m=s ______________________

1. transportation problem From A B C DV From A B C Constraint Demand Objective Minimize Cost 1 $6 11 4 To (cost) 2 $5 8 10 3 $5 9 7 1 0.00 0.00 70.00 70.00 = 70 To 2 100.00 0.00 0.00 100.00 = 100 3 50.00 0.00 30.00 80.00 = 80 $1,240.00 Constraint 150 0 100

A) Determine the value of k for which the system of linear equations 2 x + 3 y = 6 x + ky = 3 has infinitely many solutions. (enter a fraction, decimal, or integer. do not approximate) k = B) Find all solutions corresponding to this value of k . (Express x and y in terms of the parameter t .) ( x , y ) =

/w EPDw ULLTE3N 7278A295 /w EdAKMB1slQ1 40 Unanswered MATH 105 Exam 1 Please be sure to save at least once every 15 minutes. If you leave this page without saving, or if your session times out, any answers you have not saved will be lost. The Submit for Grading button will become available once you've answered all questions. Exams are not timed;

PROJECTIVE GEOMETRY MATH 5130 (3) Prove that given a point there exists at least three lines incident with it. Deduce that there are at least seven distinct points.

UseGauss-Jordan elimination to solve the linear system and determine whether the system has a uniquesolution, nosolution, or infinitely many solutions. If the system has infinitely manysolutions, describe the solution as an ordered triple involving a free variable. xminus yequals = 3 3 yminus zequals = negative 3 3 xplus +zequals = 4

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Prnhlem 5 {10 points} {30de the hnmgm equatiun day 2 , Subject to the boundary mnditiuns d J 94:91 = min. Tim} = with where :11 and g are rents. 1. What h the condition that :11 and a; must 531.13ij at: that the equation has real eigenvalues J... Data-mine A... 2. Show that the mandated eigenfunctions mm] form an urthugunal Eat if um: = 1. Vfy
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I I need assistance with this problem. I've tried on my own and was unsuccessful. \f
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4.4.4 Test (TS): Trigonometry Test Archis Chinmulgund Geometry Sem 1 (S4039483) Points possible: 50 Date: ____________ Answer the following questions using what you've learned from this unit. Write your answers in the space provided. Be sure to show all work. 1. Use the trigonometric ratios sine, cosine, and tangent to answer the following

A flagpole that is 19.5 ft tall casts a shadow that is 93.6 ft long. Find the length of the shadow that a 3.2 ft bird bath cast

Mr Deneau accumulated $100000 in an RRSP. He converted the RRSP into a RRIF and started to withdraw $4500 at the end of every 3 months from the fund. If interest is 6.75% compounded monthly, for how long can Mr. Deneau make withdrawls?

What is the length of the midsegment of the trapezoid made by the vertices A(0, 5), B(3, 3), C(5, -2) and D(-1, 2). Show equations and all work that leads to your answer.

MA501 Practice Final Exam March 27, 2017 Please, show your work. This way I might be able to give you a partial credit even if the result is wrong. Problem 1 (25 pt.) Consider linear differential equation x2 y 4xy + 6y = x4 ex , x>0 a) find two linearly independent solutions of the associated linear homogeneous equation. b) find the general

ques 8. Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 3; zeros: -3 ,-7 - i Enter the remaining zeros of f. _____ Use a comma to separate answers as needed

(5) Water is flowing at a velocity of 2 m/s in a 200-mm diameter pipe. The pipe diameter is reduced to 100 mm at a constriction in a pipe.Determine the flow velocity at the constricted pipe section.

1. Combine like terms 9x+6y+(-6y)+(-11x) 2. Solve and check 3(3x-2)+21 3. Solve and check 109-(7x+8)+7(x+8)+x

Is the following situation a binomial setting? Explain how it does or does not meet the conditions of a binomial setting. A manufacturer produces a large number of microwaves. From past experience, the manufacturer knows that approximately 1.5% of all their microwaves are defective. Consumer Reports randomly selects 20 of these microwaves for

The actual cost of direct labor per hour is $ 19 and the standard cost of direct labor per hour is $ 12.5 . The direct labor hours allowed per finished unit is 0.25 hour. During the current period, 4,600 units of finished goods were produced using 3,200 direct labor hours. How much is the direct labor efficiency variance? A. $ 38,950 unfavorable

5A (4 points) A fair coin is tossed eight times, with the result (H or T) of each flip noted. How many outcomes does the experiment have? How many outcomes are there where heads comes up four times? What is the probability of the outcome HHHHTTTT? What is the probability that heads comes up four times? Enter your answers as whole numbers or

Please help me with the following questions in linear algebra. Many thanks! 3. A matrix S is non-negativedenite if CTSC Z O for any vector c. Prove that all covari- ance matrices are non-negativedenite. If CTSC > 0 the matrix is positive denite. Show that a positive denite matrix is invertible. Also, give an example of a covariance matrix that is
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Find all points having anx-coordinate of 1 whose distance from the point (3,6) is 5.

Are the two triangles below similar? \f
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Which statement shows how two polynomials 4x + 6 and 2x2 8x demonstrate the closure property when multiplied? 8x3 20x2 48x is a polynomial 8x3 20x2 + 48x may or may not be a polynomial 8x2 32x2 14x is a polynomial 8x3 32x2 + 14x may or may not be a polynomial

Please show all work to the problem so I understand how to do it. Thank you very much for your help. Sunshine Gardens determines the following demand function during the early summer for tomato plants: ' _ 2x+300 'mx+n Where q is the number of plants sold per day when the price is x dollars per plant. q=D@) a) Graph the function: xD'7(x) D(x) b)
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consider the quadratic function f(x)= -x^2+1x+2 determine the following:(enter all numerical answers as integers, fractions,or decimals): the smallest x intercept is x=____________ the largest x intercept is x=_____________ the y intercept is y=____________ the vertexis (____________,__________) the line of symmetry has the

Suppose you toss one fair, 6-sided die. a) What are the odds for rolling a six? b) What are the odds against rolling a four? c) What are the odds of rolling an even number? d) What are the odds against rolling a multiple of three?

(a) How many distinguishable ways can the letters of the word MILLIMICRON be arranged in order? (Enter an exact number.) (b) How many distinguishable orderings of the letters of MILLIMICRON begin with M and end with N ? (Enter an exact number.) (c) How many distinguishable orderings of the letters of MILLIMICRON contain the letters C R next to

A bowling alley charges $2.00 per game and will rent a pair of shoes for $1.00 for any number of games. The bowling alley has an earnings goal of $300 for the day. 1.What linear equation describes the problem 2.Graph the linear equation 3.If the bowling alley rents 40 pair of shoes, how many games will need to be played to reach its goal

Suppose that the dollar value v(t) of a certain car that is t years old is given by the following exponential function v(t)=29,900(1.16)^t Find the initial value of the car. $ Does the function represent growth or decay? growth decay By what percent does the value of the car change each year? %

Math 104A Homework #3 Instructor: Lihui Chai General Instructions: Please write your homework papers neatly. You need to turn in both full printouts of your codes and the appropriate runs you made. Write your own code, individually. Do not copy codes! 1. (a) Let f C 2 [x0 , x1 ] and P1 its interpolation linear polynomial at x0 and x1 . Prove that

Solve the equation using Factoring AND then the Quadratic Formula: x^3-27=0 please show work

It takes Alicia 15 min to drive to work in the morning. She drives home using the same route, but it takes 11 min longer, and she averages 6 mi/h less than in the morning. How far does Alicia drive to work? Miles (round to the nearest tenth ) ?

One integer is 6 more than another. Their product is 520. Find the integers

1. Consider the function f : E } 5 dened by ny] = (3353?3 + yg} for all {my} E E. [a] Prove that f is a transformation and nd a formula for f_1(3:, y}. [b] Show that f is not. an isomet-ry. {c} Find all xed points of f. [d] Describe the images of straight lines under the transformation f. Find the equations of the lines which are mapped either to
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Math 012 Midterm Exam Fall 2017 Professor: Dr. Liz Grubert Name________________________________ Instructions: The exam is worth 75 points. There are 15 questions, each worth 5 points. Your score on the exam will be converted to a percentage and posted in your assignment folder with comments. This exam is open book and open notes, and you may take

An observer 1.2 m tall is 28.2 m away from the tower. The angle of elevation of the top of the tower from his eye is 60 degree. What is height of tower?

6-9y is less than or equal to 30-5y. Solve the inequality.

Question 3 1 2 3 LetA: 4 1 6. 7 8 9 a) Input the matrix A in MATLAB b) Enter MATLAB commands to perform one row operation at a time, reducing the matrix A to upper triangular form without pivoting. What is U? What is L? c) Enter MATLAB commands to perform one row operation at a time, reducing the matrix A to upper triangular form with pivoting.
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Solve the system of linear equations using the elimination method. one third x 13x minus two thirds y 23y plus + z z equals = negative 4 4 one half x 12x minus three fourths y 34y plus + z z equals = negative StartFraction 19 Over 4 EndFraction 194 negative 2 x 2x minus y y plus + z z equals = 2 2

me write this out. 1. How many times louder is a 60dB sound than a 20 dB sound? 2. Hiw many times more energy is released by a magnitude 6 earthquake than by a magnitude 2 earthquake? 3. When I am 2 meters away from the speakers at a concert, the sound level is 130 dB. How far away should I be sitting to reduce the level to 110 dB? I have to show

Solve the given equation. Type an integer or a decimal. Round to two decimal places as needed. Use a comma to seperate answers as needed. \f
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could someone kindly help me with steps to answer this question?I would prefer if solutions were written on paper :) 200 tennis enthusiasts were asked about which of these grand slam tournaments they have attended: US Open, Wimbledon or Australian Open. 50 attended Australian Open, 95 attended Wimbledon, 110 attended US Open, 25 attended Wimbledon
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It is possible for a system of linear equations to have exactly two solutions. True or False

#9 Hello, I am having problems with this problem and would like your assistance to better understand. There are two answers needed . Please read below. The cash prise for furniture for all rooms of a threebed-room house is $6611. The Iumiture can be nanced by paying 51000 down and $217 per month for 30 months. However, instead of making the
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9. Express in equivalent form: 3log x + log 1 - log (y + l) A. log 3-x y B. log (3x- y) log x' log (y + 1) xi! D. l Ogy+l 10. Which of the functions con'esponds to the graph? 10

Is achieving a basic skill level related to the location of the school? The results of a random sample of students by the location of school and the number of students achieving basic skill levels in three subjects is shown in the contingency table. At alpha equals 0.05, test the hypothesis that the variables are independent. Complete parts (a)

Using queuing models to examine some operating characteristics for systems in which various quantities of "work" arrive at various points in time. The "work" could be in the form of a customer arriving to the system and needing some sort of service. However, these concepts also apply to the situation where the "work" comes in the form of

Mitochondria are organelles that provide energy for human and other eukaryotic cells. Mitochondria can divide like bacteria and fuse with each other. Use the following assumptions to write a differential equation for M, the number of mitochondria in a cell. a) There is an optimal mitochondrial population, m. The rate at which mitochondria

What is the nominal annual rate of interest compounded quarterly if a loan of $21500 is repaid in 7 years by payments of $2000 made at the end of every 6 months?

Provide an appropriate response. Ify''=6x+2 andy'(1)=2 andy(1)=2, findy. If you send it with your answer, I will choose it as the best answer. Thanks.

IHP 525 Quiz Two Answer the following questions covering materials from previous chapters in your textbook. Each question is worth 3.5 points. 1. A telephone survey uses a random digit dialing machine to call subjects. The random digit dialing machine is expected to reach a live person 15% of the time. In eight attempts, what is the probability of

I need help solving this problem: f is a function that takes a real number x and performs these three steps in the order given: (1) Take theabsolute value. (2) Subtract 7. (3) Take the reciprocal of the result. (That is, make the quantity the denominator of a fraction with numerator 1.) (a) Find an expression for f ( x ). (no explanation required)

If f ( x ) =6 x 4and g ( x ) =2 x +6, what is a formula for the function g - f?

Find an equation of variation where y varies inversely as x and y=10 when x=12. The equation of variation is y = ? (Simplify your answer. Type an expression using x as the variable.)

__________ is when new variables are consistent, or repetitive of other variables. In other words, new variables do not contribute anything unique to the equation. Group of answer choices validity reliability redundancy knowledge deficit

1) The moon forms a right triangle with the Earth and the Sun during one of its phases, as shown below: \f\f\f
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The hemoglobin count (HC) in grams per 100 milliliters of whole blood is approximately normally distributed with a population mean of 14 for healthy adult women. Suppose a particular female patient has had 9 laboratory blood tests during the past year. The sample readings showed an average HC of 16.49 with a standard deviation of 2.19. Does it

Three research departments have 8,10, and 7 members respectively. Each department is to select a delegate in an alternate to represent the department at a conference and how many ways can this be done

Numerical Analysis Project 1: [Root Finding Methods] The goal is to find the points at which ex/5 = sin(x) on the interval [0, 10]. 1. [Visual Inspection] Use matlab to plot the functions ex/5 and sin(x). From this make your first approximations to the points where they are equal. 2. [Bisection Method] Write a short matlab program which will

21. The city nf New Ulla-3115 is lli aI latitude 3TH. Us: Figure: 9m ndamctinnthm 1110:1315 thenumhtr thuurs uf daylight at Haw Drlans as a mctinn If 1]]: rm: if yam: Tb shack 111:; Elm (11'3qu mania], use :11: fact that on March 31111:; sunrisas at 5:51\"! and 5615 at 6:13 PM in Haw 01133115
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Mei Li invested $350 at the end of each quarter at 3.2% compounded quarterly. At the end of five years, she was able to withdraw equal amounts at the end of each quarter for nine years. How much is the size of each withdrawal?

If a stock price goes from $10 to $12 from January 1st to January 31, and from $12 to $9 from February 1st to February 28th, is the price change from $10 to $9 a straight line? How can I use two "pieces" of lines to describe the price movements from the beginning of January to the end of February? I am currently stuck on this question...this is

1 (5 points) For a normal distribution with mean of 100 and a standard deviation of 12, find the number of standard deviations the raw score 76 is from the mean. Enter answer as a positive value rounded to nearest hundredth (two places after decimal). Question 1 options: Question 2 (5 points) For a normal distribution with mean of 80 and a

Write the exponential function that best models the number of trees infected. F(x), in terms of years x. \f
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F. interpret the slope and the vertical intercept. What does each represent in this situation? \f
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How can the Angle-Angle Similarity Postulate be used to prove the two triangles below are similar? Explain your answer using complete sentences, and provide evidence to support your claims. \f
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please review to make sure I'm correct. any help would be lovely How long will it take an investment of$5100 to double ifthe investment earns interest attire rate of 9% compounded continuously? Use the laws of logarithms to snnplifythe expression Please myour answer to two decimal places. 3 K In l 7.70 yr 3 b. 8.66 3:; 50' + I) c. 6.93 g d. 6.53
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Please kindly see attachment for the question thank you very much Assignment 9 W14: Problem 4 (1 point} Let y = 5x2. Find the change in}. $3: whanx = 5 and A): = 0.3 Find the diemn'tialdy when): = 5 and :1; = 0.3
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Listen Study the following figure, where two concentric circles share center C. Segment AB is a diameter of the larger circle. Segment AB intersects a chord of the smaller circle, PQ, at a right angle at point Z. Segment AB intersects a chord of the larger circle, MN , at a right angle at point O. M P A Z C O B Q N 2016 StrongMind. Created using
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1) In proposed business venture, a businesswoman estimates there is a 60% chance she will make 65,000 and a 40% chance she will loose 56,000. Determine her expected value. 2) If the probability that an event will occur is 1/3, then the probability that event will not occur is 2/3, and the odds in favor of the event occurring are _____

use the figure to find the exact value of the following trigonometric function: cos(2a) x=24, y=7, r=25

1. Accounts Receivable Turnover2. Average Collection Period (days)3. Inventory Turnover4. Average Sale Period (days)5. Operating Cycle (days)6. Total Asset Turnover Comparative financial statements for Weller Corporation, a merchandising company, for the year ending December 31 appear below. The company did not issue any new common stock during
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One of the boxplots correctly summarises one of the data sets. State which boxplot this is and the data set it summarises. ? \f\f\f
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Need fast help with this question. Please see attached... \f
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please help me answer this within the next few minutes thank you - Quiz Me: 5.5-4 Graph systems of inequalities. Graph lhe given system of inequalili. x + y > 4 x + y
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A rancher has 180 yards of fence with which to enclose three sides of a rectangular pasture (the fourth side is a river and will not require fencing). Find the dimensions of the pasture with the largest possible area. (For the purpose of this problem, the width will be the smaller dimension (needing two sides); the length with be the longer

The question is in the screenshot please look there to answer. A veterinarian has been asked to prepare a diet, x ounces of Brand A and y ounces of Brand 5, for a group of dogs to be used in a nutrition study at the School of Animal Science. It has been stipulated that each serving should be no larger than 8 oz and must contain at least 29 units
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Another difficult graphing problem for me. I'm not sure what information I am supposed to be looking for. Use the graph to answer the following problem. K2) - 9(2) I misiazsiazxzaisd.' stizwssdcssmlzJiJ m m 1.4.... w m m m m \" _.... .... 4.3.51.4} mi ihir \"i . hikirhiu m... :wzmzj... w. Mlle; T i+z+ii+i . +i+izii T TTT +... + I: l_ i... 4. m
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Express the set in roster form.{x|x is a whole number between 5 and 9} Thanks in advanced for the answer

Write the Point Slope form of a line described below. Please show all steps. Through (7,2) and parallel to y=2/7x+6

10 kids are randomly grouped into an A team with five kids and a B team with five kids. Each grouping is equally likely. There are three kids in the group, Alex and his two best friends, Jose and Carl. Define the events J and C as: J: Alex ends up on the same team as Jose C: Alex ends up on the same team as Carl Are the events J and C independent?

An airplane has an airspeed of 420 km/h bearing 46 degrees north of east. The wind velocity is 80 km/h in the direction 35 degrees north of west. Find the resultant velocity representing the path of the airplane with respect to the ground. What is the actual ground speed of the aircraft?

. Which of the following best describes an asset? A. Anything of value owned by the business B. Always equal to a liability C. Listed on the right-hand side of a balance sheet D. Something that a business owes

What are some strategies that help you when dealing with fractions or proportions?

The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable x.

Answer the following problems.Provide as much detail and description as possible. The average height of men in the US is 177.6 cm.How tall is this in inches? The average height of women in the US is 162.2 cm. How tall is this in inches? Both women and men have a standard deviation of 2.8 inches. What is YOUR z-score, based on the above

One number is 66 more than another. The difference between their squares is 204. What are the numbers?

Please help me to solve: A child drops a cup from 3 feet. Use the position equation, s=16t^2+vo t + so, to determine how long it will take, in seconds, for the cup to hit the ground. Enter a number and round two decimal places.

20. Write an equation for the graph 4 TC 21. Write a function f(x) = cos(x) function that was shifted 3 units up and - 2 to the right
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4. Alina Perez earned $597.35 last week. If he worked 43 3/8 hours, what is her hourly wage to the nearest cent?

A catering service offers 6appetizers,9main courses, and 5desserts. A banquet committee is to select 5appetizers,6main courses, and 2desserts. How many ways can this be done?

1. Two players Bob and Alice are playing the following game Alice Flight Wait Bob Flight a,b e,f Wait c,d g,h The numbers in the cells are the respective payoffs to the players as per convention If (Fight, Fight) is a Nash Equilibirum, which of the following must be true? Select the correct option . Select one: a. a>c and b>f b. c=a and b e and

The results of a study showed that heterosexualwomen, duringovulation, were significantly better at correctly identifying the marriage status of a man from a photograph of his face than women who were not ovulating. Nearovulation, on average women correctly identified the marriage status of about 67 67 % of the 100 men shown to them. Assume that

Find the x intercepts of the following: f(x)= x^5 + x^4 + 3x^3 + 3x^2 - 4x -4

In a sample of 900 gas station, the mean price for a regular gasoline at the pump was $2.898 per gallon and the standard deviation was $0.009 per gallon. A random sample size 55 is drawn from this population. What is the probability that the mean price per gallon is less than $2.895? The probability that the mean price per gallon is less than

The temperature of an object taken from a freezer gradually rises can be modeled by T(x)=3x-15 where T(x) is fahrenheit temperature of the object x minutes after being removed from the freezer. Find and discuss the meaning, in the context of this application, of the intercepts on the vertical and horizontal axes.

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