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Mathematics Questions and Answers November 19, 2021

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HWOB: Problem 2 (1 point) We consider the non-homogeneous problem 1!" 23f 8y 2 1441227 First we consider the homogeneous problem 1.!\" 230' 39' = I]: 1) the auxiliary equation is or2 + bi\" + c = = 0. 2) The roots of the auxiliary equation are (enter answers as a comma separated list). 3) A fundamental set of solutions is (enter answers as a comma
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Solve the system of equations by graphing. Check your solution. 4x+y=9 3x-y=12 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution to this system is nothing .(Type a ordered pair.) B. There are an infinite number of solutions. C. There is no solution.

1. Suppose you are interested in investigating the factors that affect the prevalence of tuberculosis among intravenous drug users. In a group of 9? individuals who admit to sharing needles. 243% had a positive tuberculin skin test result; among 151 drug users who deny sharing needles, 1?.4% had a positive test result. The goal is to determine
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Find the point on the parabola y= -x^2 + 3x + 4 where the slope of the tangent line is 5. Explain. Give one example of a rate that is decreasing and one example of a rate that is increasing. When a vehicle is said to be travelling at -35 km/h, what does this infer? Explain. If V represents the volume of an object, what does dV/dt represent?

1.In how many ways can 5 states be selected from the top 10 states with the most murders if the order of the 5 states matters ? In how many ways can 5 states be selected from the top 10 states with the most murders if the order of the 5 states does not matter ? 2.What would be the probability that randomly choosing 3 states from the top 6 murder

I am having trouble with the formula for the following problem. can you please break it down for me? -3x+4y-x+3x-y

1 and 2. You plan to go to Ireland in 3 years. You anticipate that you will need $12,000 for expenses (travel, lodging, food, etc.). An account at your local bank pays 4.46% per year compounded monthly. How much should you deposit each month in this account to achieve your goal? A. Identify the type of problem B. State the answer to the question

Sam pays his $423022 mortgage over 25 years with biweekly payments while Bill pays his $423022 mortgage over 15 years with biweekly payments. How much more does Bill pay per payment assuming a rate of interest of 6% compounded semi-annually? Assume that payments are due at the end of each payment period.

please help me do this question, thank you very much ........... 1. Consider a linear system :ic(t) = Ax(t),y(t) = 0:6\") with matrices A 6 RM\" and C 6 RM\". Let T > 0, and introduce the operator 3%" 3 Rn _> L2([0:T]2Rk)a A(-) $0 I> 06 $0, i.e. (i'met) = CeAtzco. Given an output trajectory y : [0,T] > R'\" of the linear system, use a Hilbert
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Math How do I solve this please Your car has no cup holder, so you must place your filled coffee cup on the passenger seat beside you when you start out in the morning. Bitter experience has taught you that the cup is least stable and most prone to spill when it is completely full, but becomes more stable as you drink the coffee and thereby lower

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A math test consists of 10 multiple choice questions, each with three possible answers (a, b, c), only one of which is correct. Assume that a student takes the test and randomly answers the questions. Explain why this situtation describes a binomial experiment.Be specific.

Given the function P(x)=(x-6) (x+4)(7x-4), find its y interceptis _______________________ its y intercepts are x1=__________, x2_____________ and x3=___________________ with x1

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I need answer to a,b, and Proof for theorem B5. This is from Real analysis class. \f
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Find the second derivative. Im so lost. Please show steps and explain what youre doing! f(x)=x 5 e 3x^4 -13x

GIVEN THAT Y=3 AND X=4. simplify the following equation 3x+4y*6

1(a). Find the shaded region between y = 2 x , y = xsqrt(x+1) 1.(b) Find the shaded region between y = xsqrt(4-x^2), y = 0

' 4; = Men flafln'rte imagrm. 7 J 1a8x dx 4 .7 L max" ("Tre an iner Gr 3 Fractin.)

The two triangles below are similar.Find the missing length. \f
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A media company is going to install cable from a house to their connection box B. The house is located at one end of a driveway 7 miles back from a road (see diagram). The connection box is 25 miles down the road. The cost of installing the cable is $656 per mile off the road and $375 per mile along the road. Let x be the distance from where the

Some idealists are not romantics. SO, all idealists are dreamers. Romantics Idealists Dreamers => Invalid
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A charity fundraiser consisted of a spaghetti supper where a total of 387 people were fed. They charged $6.80 for adults and half price for children. If they took in $2444.60, find how many adults and how many children attended the supper.

In California you drive an average of 330 miles per week in a vehicle that gets only 15 miles per gallon on average. With the cost of gasoline at $2.36per gallon, approximately how much would you save each year on gasoline if you drove a car that got 36 miles per gallon instead? about $1,600 about $1,900 about $1,400 about $1,800

Question 9 Manually calculate the compound interest on an investment of $7,500 at 6% interest, compounded semiannually, for 1 year. a. $7,950.00 b. $456.75 c. $7,956.75 d. $450.00

Alex has 55 coins, all of which are either loonies or townies. The total is $95. Find the number of each coin

Kaylene deposits $275per month in an investment account that earns 3% compounded monthly for 10years. Gabe , on the other hand, deposits $3,300 at the end of each year into a similar account that also earns 3% compounded annually for 10years. Even though they each contribute the same amount of principal with the same APR and length of investment

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Evaluate the expression 5+7i/1i and write the result in the form a+bi . The quotient is

What is a composite function? Give two different but correct notations for the composite of two functions. Give a real world example?Your example should include the two base functions and then the composite function.Discuss. How are composite functions useful?

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8. Find the first 5 terms Miki: sequence With nth term an = (-1)"/ (nz)

Suppose the population of a city was 680,000 in 1992. The relative growth rate is 12% per year. What is the population t years after 1992 and in the year 2000?

Hello i had problem with solving this example. I found integrating factor equal to=(-t^2-1). Can you solve the problem explaining this and doing step by step to solution. \f
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find all solutions of the equation in the interval [0, 2) -sinx =-cos^2 x-1 please answer in radians in the terms of pi are there multiple answers?

description of the set {Saturday,Sunday} List all the subsets of the given set {tangerine, blueberry, lemon}

Please explain this problem to me step by step. Determine the convergence/divergence of the function using the comparison test integral 0 to pi/2 dx/xsinx

A vending machine dispenses coffee into a twelve -ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.05 ounce. You can allow the cup to overfill 1 % of the time. What amount should you set as the mean amount of coffee to be dispensed?

I think this equation is invalid and we can approve it by Stoke's Theorem. But I don't know the how to explain it or to approve that it is wrong. x $20 . HOW DO YOU SEE IT? LetS be the portion of the paraboloid lying above the xy plane, and let 52 be the hemisphere, as shown in the figures. Both surfaces are oriented upward. For a vector field
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Drinking 5 cups of coffee has been observed to lead to weight loss. A preliminary study of 35 obese participants were all given 5 cups of coffee every day for 10 weeks to evaluate the effect coffee on weight change. Go to Sakai> Lessons>Datasets> weight loss program to download the dataset (dataset name WEIGHTLOSS) to address this question. a) Run

Complete the steps to determine whether the statement is true for the appropriate value of n. Use the Principle at Mathematical Induction to prune the statement. {1+a}"21+an.fara1 What is the rst step in an induetien preef'? {:2- A. Shaw that the statement is true for n = k + t. iii-'9' B. Show that the statement is true fer n = 1. '32:? C. Shaw
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1. Determine the average rate of change for the function p(x) = -x + 3. a. 3 b. -3 c. -1 d. 1 Q2. Find (f - g)(4) when f(x) = 5x2 + 6 and g(x) = x + 2. a. 80 b. 88 c. 84 d. -90 Q3. Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is $1.90. The total cost to regrind 50 platens is $400. Find the linear cost function to

1. [-/2 Points] DETAILS OSCOLPHYS2016ACC 7.1.P.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How much work does a supermarket checkout attendant do on a can of soup he pushes 0.430 m horizontally with a force of 5.20 N? Express your answer in joules and kilocalories. (For each answer, enter a number.) work in joules work in kilocalories kcal
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I need help with this question, asap If you have to buy a new engraver, it would cost around $25,000. You can get a one-year loan at 12% to buy a new engraver, but you worry that this is a lot of money to spend, especially since the old engraver is still working fine. You have to make a decision. In this discussion, pose you argument on whether

Group Problem 10 Interest is money earned (paid) for the use of money. The total amount invested (borrowed) is called principal. The rate of interest, expressed as a percent, is the amount charged for the use of the principal for a given period of time, usually on a yearly (per annum) basis. 1. Suppose $1000 is placed into a savings account paying

The mass of a radioactive substance follows a continuous exponential decay model , with a decay rate parameter of1 % per day. A sample of this radioactive substance was taken four days ago. If the sample has a mass of3 kg today, find the initial mass of the sample. Round your answer to two decimal places. Note: This is a continuous exponential

15) A survey of earnings contains an unusually high fraction of individuals who state their weekly earnings in 100s, such as 300, 400, 500, etc. This is an example of errors-in-variables bias. sample selection bias. simultaneous causality bias. companies that typically bargain with workers in 100s of dollars. 9-997?\
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1. True/False Capacitive reactance decreases with more capacitance and higher frequencies for sine-wave ac voltage applied. 2. True/False The opposition that resistance offers remains the same for dc and ac circuits. 3. True/False For any capacitor, the 180 phase relationship between v c and i c exists for all values of capacitance or any

MAT-111A - College Algebra Homework Problems 5 (20 Questions) The following questions were adapted from Blitzer, R. (2018). College Algebra (7th ed). NOTE: Be sure to show your work for the solution to each question. Partial credit may be given, even if the final answer is not correct, as long at the proper concepts are being depicted. Scoring: 1

Question 6: [35 marks] The line mass density of wire is given by the formula p(x,y) = (5x3+ 3y= + 8z?) g/cm Calculate the total mass M of the wire if its shape is described by the equations: x (t) = sin't, y (t) = cost, z (t) = (cost)/2, where 0 StS =/2 and length is measured in centimetres. Present you answer in the exact form (don't use a
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Following is the question. Please answer the following. The critical value for the following hypothesis, H0: Tl: S TEO H1: 1'[ > \"0 using a test of a single proportion with alpha = .05 is 1.65. Given this information, which of the following are valid methods of arriving at a conclusion as to whether or not to reject the null hypothesis? '3' A'
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1. Suppose that A is a set and {Bi | i I} is an indexed families of sets. Prove that A (UiI Bi) = UiI (A Bi). This problem is similar to Theorem 4.1.3 and to Exercise 11 in Section 4.1 of your SNHU MAT299 textbook. 2. Suppose that A = {1, 2, 3}, B = {4, 5}, C = {a, b, c, d}, R = {(1, b), (2, a), (2, b), (2, c), (3, d)} and S = {(4, a), (4, d), (5,

Math 012 7982 Final Exam Spring 2017 ID: 40 c [2Q0m1Y7G NKYuAtzaI [S]o^fytewta]rBeB BLNLcC\\.l K ]AMlsl` YrqiOgYhEtqsq ]rbersRetr`vWendC. Solve each equation. 1) 5(5m + 8) = -1 - 6(6 - 6m) 2) - 17 1 8 = v- v 21 3 7 Solve each inequality, write its solution set in interval notation, and graph the solution set on a number line. 3) 2(n - 5) -8(n + 5)

1. [BeckRobins, #4.5[a,c)) Recall from Homework 2, #Hc] that Zzt+sz= 12'\" till as rational functions even though the left side involves an innite sun] of n1onon1ials with positive coefcients, cancellation occurs after rewriting each large suInnlancl as a rational function and simplifying. 1We'll prove that this happens more generally. Let Q : E.

The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months. ( g APUSCLE: MATIBDZAI: x '- (D httpsy'fedgeapusgdufpunallsite2966h00'fb456-474b793f574fab789037f0596048343Msffdelivery/beginTakmgAs E] C' QSeorrh l * ' Question 60l25 LD Points The
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PRE CALC... 15 MULTIPLE CHOICE SONIC SECTION QUESTIONS... MUST GET AT LEAST 14/15.... MAKE YOU UNDERSTAND BEFORE EXCEPTING \fQuestiam-mitim 1:52)- Find nmiu-igpance-"gsmen mag-pm (Eliiiji'andgg; 21' 3 _ . I. 3. 3 Save ' Question 12 (3 points) Find the distance: between the points [3" 5] and (=1: 3) . L: s g; 231? 41: 2 1'5 Save : I Question
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STAT200 Week 7 Homework This is the last homework in our class Problem 1. For the X,Y data in the table, compute the coefficient of correlation r. x y 5 2 10 12 22 15 28 24 40 42 x y xy Show work Problem 2. For the (X, Y) data in the table, compute slope and y-intercept of the regression line. X Y 4 8 7 10 13 18 16 20 Show work Problem 3.

1. Two functions are given. For both functions, x is the number of years since 2000 and y (or f(x) or g(x)) is the percent of college students taking at least one online course. F(x)=2.8x+3.3 G(x)=0.07x^2 + 2.0x + 5.1 Note the function values f(6)=20.1, g(6)=19.62, f(18)=53.7, and g(18)=63.78. Compare f(6) and g(6), then compare f(18) and g(18).

please help im stuck on finding the 2 points i know one point is 1 but cant find the other.. Mam; Asoessment a 15x45 Expanenuaxane x [m Mamway|Math Drawer x HomewakaA'prQM' x E e | n Secuie \\ h1lps://malhas.pvcmarIcopa.edu/assessmenl/Shuwtestphp?regen:3&page: Apps @churmmea a Amamnxom'Samsu ASeMuAvizanarAl I mia debunk 5133'ClarkaMaunw D NewTala
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Please help me with these problems. Thank you very much. 1. Prove each of the following statements using mathematical induction: (3) 12+22+32+...+n2= \"(\"+1)(2\"+1) 6 forallnzl. (b) ;+;+ +;_i 1-2 2-3 n-(n+1)_n+1 forallnzl. (C) 1 1 1 1 foralln22. 2. Prove the following by mathematical induction: (a) n2
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I'm not sure that I understand this. Please help with my study guide. Thank you! Answer the following questions using what you've Ieamed from this unit. Write your answers in the space provided. Be sure to show all work. 1. Find the area of a triangle with the given vertices. Part [2 Graph the following points on the coordinate grid below. {3
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Math 246 Homework Assignment Four Do the following problems showing all your work. Be sure to submit your solutions in PDF format to the Assignment area of LEO. (Point values are given in the square brackets.) 1. [3] Find the general solution for the differential equation: !!! !" 3 !" ! + 7 !" 11 = 0 2. [4] Find the solution for the initial value

#7 after rolling the frsrt ball of a frame in a game of 10 -pin bowling, how many many different pin confingurations can remain #8 Assuming that what is wanted is to seat 7 people in a row with 7 chairs. In how many ways can we seat these 7 people in the chairs #9 How many ways can a boy and a girl be selected to decorate for a birthday party from

Traffic Flow Traffic engineers use systems of equations to study the flow of traffic. The analysis of traffic flow is based on the principle that the number of cars that enter and leave an intersection must be equal. Suppose the traffic flow for some one-way streets can be modeled by the diagram below, where the numbers and the variables represent
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need help figuring out the math 151 problem ive attached to the message Q MamAs Assessmenr J 15x45 Legarnnmievre. x Homework HdprQM' x ( C l n Secure \\ h1lps://malhas.pvcmarICopa.edu/assessmenl/Shuwtestphp?regen:1&page:0 Apps @chennmee a Amamnxam'Samsu ASeMuAvizanarAr I nda debunk 5133'ClarkaMaunm D Nemae Y Vanee D sadbgmtalgelznm Home > MAT151
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1.Find the Solutions to the inequality in interval notation .: 6x^3+13x^2?4?0 2.Find the Solutions to: x^4+x^3?5x^2?3x+6=0 .Find the other solutions to the equation.If there is more than one zero or a zero is repeated, enter your answers as a comma separated list. 3.Find the Solutions to: x^3?5x^2+3x+9=0 Find the other solutions to the equation.If
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The intersection graph of a collection of sets A1, ..., An is the graphthat has a vertex for each of these sets and has an edge connected thevertices representing two sets if these two sets have nonempty intersection.Construct the intersection graph of these collections of sets. a) Construct the intersection graph of these collections of sets: A1

Please help me to explain these problems. 1) Suppose that total revenue is R(x) = 50x0.5x^2 and total cost is C(x) = 10x+3 (both given in dollars), where x represents the number of units of a product that are produced and sold. Find the rate of change of the profit with respect to time when x = 10 units and dx/dt = 5 units per day. (a) $200 per

Engineers have proposed a single-span suspension bridge across 8-km wide strait. The plan includes suspension towers 360 meters high at each end. Use the Trapezoidal approximation ( n = 4 ) to estimate the total length of the cable (in meters) that is given by L=2integral s 0 sqrt1+ 4H 2 /S 4 x 2 dx I hope I got the formula right it is hard to

Pick the answer that completely describes how set A relates to set B: A= { 5, 6 , 7} B= { 4, 5, 6, 7}

A couple's retirement plan includes an equal semiannual withdrawal from a bank account for 15 years starting from the time of their retirement. The account balance is $80,000 at the beginning of the retirement period, and the interest rate is 8% per year compounded semiannually. At the time of retirement, they plan on using up the money completely

Use the law of sines to solve the given problem. The loading ramp at a delivery service is 10ft long and makes a 17.0 angle with the horizontal. If it is replaced with a ramp 20 ftlong, what angle does the new ramp make with thehorizontal?

Antarctica has less than two inches (5.1 centimeters) of precipitation a year; the average annual temperature ranges from 10C to 60C. Less than 1% of Antarctica contains plant life. Is Antarctica a desert? a. Yes; all characteristics fall within the correct range to be a desert. b. No; deserts must receive at least 10 inches (25 centimeters) of

Textbook: Introduction to Graph Theory by Robert J. Wilson 5th Edition Pg. 86 4.10 A planar graph G is outerplanar if G can be drawn in the plane so that all of its ver- tices lie on the exterior boundary. (i) Show that K, and K23 are not outerplanar. (ii) Deduce that, if G is an outerplanar graph, then G contains no subgraph homeo- morphic or
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MATH 225 Spring 2017: Assignment 9 Due at 8:25 a.m. on Friday, July 21, 2017 It is important that you read the assignment submission instructions and suggestions available on LEARN. 3 0 0 1 2 0 1 1 is a 1. A real canonical form of a 3 3 real matrix A is B = 0 0 1 and P = 0 0 1 0 2 2 0 1 change of coordinates matrix such that P AP = B. (a) What are

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_____ are generally small and just show simple trends rather than all the details regarding the horizontal and vertical axes that you would expect on a normal graph. Multiple choice question. Line Graph Correlation Sparklines Bar Graph

If f left parenthesis x right parenthesis equals negative 3 x minus 1 f(x)=3x1, find the function value f left parenthesis 4 right parenthesis f(4). f left parenthesis 4 right parenthesis f(4)equals =

Scheduled payments of $600, $800, and $1200 are due in one year, three years, and six years, respectively. What is the equivalent single replacement payment two-and-a-half years from now if interest is 7.5% compounded monthly?

Given a right triangle having an acute angle (theta) of 35 and adjacent side of length 80.00, find the measurement of the other angle and the other sides. Be sure to clearly identify which of your answers is the length of the side opposite to (theta) and which is the length of the hypotenuse as well as stating the measure of the other acute angle.

3. Let f : R R be a continuously differentiable function and let f'(-) denote the derivative of f. Using only the definitions/theorems we discussed in class, prove that: a. If f'(x) > 0 then f is increasing in a neighborhood around x (5 pts) b. If f'(x)
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Find the slope and y-intercept of the line having the given equation. a) 3x -y -9 =0 ; m= _____________; b= ______________ b) 1/4x -3/8y=1; m= _____________; b= _____________ Find an equation for each line described. Write each equation in the slope intercept form y = mx + b Find an equation of a line containing the points (1/4, 5/6) and (3/4, 1)

3.44: t V AABC has a right angle at C. Points D and E are on AB as shown below such that AD = AC and BE = BC. Find ZDCE. AE D B Hint Hint Type your solution, notes and/or work here. Show Solution 3.45*: t V Let ABCD be a square, and let E, IF" be points such that DA = DE = DF = DC and ZADE = ZEDF = LFDC. Prove that triangle BEF is equilateral. B D
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Find the proceeds of a 15-year promissory note discounted after 6 years at 9% compounded quarterly with a maturity value of $7500

The function D(h) = 7e -0.3h can be used to find the number of milligrams D of a certain drug that is in a patients bloodstream h hours after the drug has been administered. a. How many milligrams will be present after 2 hours? 3a. __________________ b. When the number of milligrams reaches 1, the drug is to be administered again. After how many

r, 1. .7 . _ nwacomwza' 'Pmb'em 142 mill Data Analysis Exercise" ala below for federal budget receipts. federal budget spending, and GDP in the us. Calculate the federal budgel.I surplus or decit m . (Enter your responses rounded to two decimal places and include a minus sign for a decit.) Federal Federal Budget Government Receipts Spending Real

4.14: t V A triangle has area 42 and one side of length 7. Find the length of the altitude to the side of length 7. is it possible to find the perimeter of this triangle? Type your solution, notes and/or work here. Show Solution 4.15: t V Find the perimeter of a square that has an area of 75. Type your solution, notes and/or work here. Show
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We begin graphing systems of simultaneous equation. Before we begin looking at the many graphs you can find out on the Web, a good starting point is to review our knowledge of 2-D graphs. These graphs are known as 2-D because they have two axes. One you are familiar with is the xy-graph, which has an x axis and a y-axis. Please explain 2

1) Use the Gram-Schmidt process to ind an orthonormal basis for the column space of A. A=([1 -1 4; 1 4 -2; 1 4 2; 1 -1 0]) Make sure to write out your steps.

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Please answer these finite math questions. Topic is discrete random variables. Thanks! If X is a random variable with probability distribution shown below, nd E(X). 3: a 0.4 :ij a. 0.8 O o. 1.0 if) D. 1.1 X is a discrete random variable with Pr[X = 2] = l and Pr[X = 1] = i. What is the variance of X'? 2 2 X is the number of heads obtained when a
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3. [18pts] Consider the sentence Whenever a prime integer squared plus five is odd, the integer itself is even. Identify the following: (a) (6pts) Quantified Statement in Symbolic Logic: (b) (6pts) Contrapositive in Symbolic Logic: (c) (6pts) Negation in Symbolic Logic
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Name Click here to enter text. This exam is worth 100 points. Questions 1 - 10 are each worth 4 points; do not show your work. Questions 11 - 20 are each worth 6 points; show your work to earn full credit. Write answers on the appropriate numbered blank. You can insert additional lines if needed. Leave answers in exact form unless otherwise

At 45 years of age, Seth figured he wanted to work only 10 more years. Being a full-time landlord had a lot of advantages: cash flow, free time, being his own bossbut it was time to start thinking toward retirement. The real estate investments that he had made over the last 15 years had paid off handsomely. After selling a duplex and paying the

If A or B is negative or zero, which of the following log rules are true? Select all that apply. log b A log b B = log b ( A B ) log b A n + = n log b ( A ) none of the log rules hold log b A + log b B = log b ( A B )

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