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mathematics
february 2018
8

Mathematics Questions and Answers February 8, 2018

Expert-verified solutions to help you succeed

The average cost of tuition and fees at public four-year colleges in the United States can be modeled by the following formula, where T represents the average cost of tuition and fees for the school year ending x years after 1996. When will tuition and fees at public US colleges average $7391? T = 165x + 2771 Tuition and fees will average $7391 in

(5x3 - 3x2+5x- 1) +(x-1) = (Simplify your answer. Do not factor.)

Select your answer (3 out of 20) What is the domain of the inverse function of f(x) = -x2? O X> 0 O X

Use the discriminant to determine the number and types of solutions of the quadratic equation. 7 =5x- 2x The equation has one real solution. two complex but not real solutions. two real solutions

Question 1 (3 points) Q12. Convert the following base 3 number to its base 10 equivalent: (01221)3 Your Answer: ;] Answer Question 2 (3 points} Q13. Convert the following hexadecimal number to its corresponding decimal representation: (4E7A9ll Your

Question 1 {2 points} all |~_,| a} What is a rational function? |~_J b} How is it different from a polynomial? |~_J c} Provide a graph of each to demonstrate the difference. Question 3 (10 points) Listen Find the values that satisify the given equations: O al (z-3)(5+2) = (b) z(z + 11) 2 12 k+4 + 4k
$Question 1 {2 points} all |~_,| a} What is a$ $Question 1 {2 points} all |~_,| a} What is a$

Barbara made $48,000 in interest by placing $80,000 in a savings account with simple interest for 5 years. What was the interest rate? Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years

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Which of the following statements is true? Question 15 options: A) Chimpanzees are Homo sapiens' closest living relatives. B) Humans descended from a monkey. C) Homo sapiens first appear only 16 million years ago. D) None of the above

5. The revenue and operating cost of a car wash facility are given by R(x) = 13x 0.7x2 and C (x) = 2.5x + 3.5, where X represents the number of cars washed. What is the prot when 10 cars are washed? \\/ \\/

2. In the diagram at M right, which ratio is equal to tan M? 21 29 BIN BIN 818 8IS N 20 O

What is the value of x? The two triangles in the picture are similar. What is the 1value.- of x ? m/x

Help me Use this diagram and information given to find m_ DFC . B n A F E D Given: mZAFB = mZEFD = 50 Points B , F , D and points E , F , C are collinear. The measure of _ DFC is

Thank you. 1. Suppose you make an investment of $12,500 that collects 4.5% interest compounded continuously. a) What is the value of the investment after 3.25 years? (Round to the nearest cent) Answer: b) What is the effective rate of interest for the investment

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Find the final amount of money in an account if $6,600$6,600 is deposited at 3%3% interest compounded annually and the money is left for 55 years. The final amount is $ . Round answer to 2 decimal places

possible Graph the inequality on a number line. Then write the solution in interval notation. {XI ~4

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Please be clear Use the method of reduction of order to find a second solution of the differential equation thy" - 4ty + 6y = 0, t > 0; y1(t) = t2. NOTE: y1 and ya form a fundamental set of solutions. y2 ( t ) =

Suppose that the set of vectors {u, v, w} is linearly independent. Show that the set of vectors {a, b}, where a = u + 7 and b = 1 + W, is also linearly independent

Question 18 options: Express the rectangular coordinates (-2, -2) in terms of polar coordinates. Express your answer in the following format: 3sqrt(2), 180 degrees or 3(2^0.5), 180 degrees

ingle Pairs (Coloring Activity) Name Find the value of x for each problem. 50 2. 90-40= 50 40 (9X-4)= 58 (5x+ 4) (19x - 16) (9x - 4) 9x = 46 - 5.1 -9 3 4. (10x + 2) (9x - 1) (12x - 28) 6 x + 11) 5. 1 BOO 6 100 (5 x + 1) 90- 39- 1:50 (3 x+ 5 ) (13x - 1) 390 50 + 5x = 100 Green 7. 8. (14x - 6) (5x - 2) 33 (9x + 9) 90-+ 25 792 9. 180 10. (14x - 12)

Q 2. Use the KKT conditions for the standard NMF problem to prove that the following holds for a stationary points (W, H) of NMF: IV - WHIT = IVIF -IWHIT

2 21 3 22 4 23 5 24 6 25 7 26 8 27 9 28

0 Question 3 v 1 Find the equation for the parabola that has its vertex at the origin and has directrix at a: = F. 0 Question 4 v Find the equation for the parabola that has its focus at (4, 2) and has directrix y = 4

The HUB grocery store Goderich, ON SALES 1 LITRE MILK $3.99 1 DOZEN EGGS $2.79 BREAD $2.50 SUGAR (2 KG) $1.99 BUTTER (1 KG) $5.79 HAMBURGER (3KG) $10.99 LENTILS $7.99 CHIPS $7.98 2@ $3.99 DISH SOAP $4.78 2@ $2.39 SUBTOTAL $48.80 TAX (13% excluding $6.34 food items) TOTAL $55.14 A week after this purchase, sugar goes on sale for half price.

The length of the longer leg of a right triangle is 4 ft more than twice the length of the shorter leg. The length of the hypotenuse is 6 ft more than twice the length of the shorter leg. Find the side lengths of the triangle. Length of the shorter leg: Length of the longer leg: Length of the hypotenuse: X 5

Not sure what I'm doing wrong can you please help. A population of beetles are growing according to a linear growth model. The initial population (week 0) Po - 5, and the population after 5 weeks is P5 - 45. Find an explicit formula for the beetle population after n weeks. Pn = 5 + 5n X After how many weeks will the beetle population reach 189? 24

For each statement below indicate if it is true or false and explain why. Most of the credit in this problem is for the explanations. Please read the statements carefully. a. If B C and R is a relation on A x B then R is a relation on A x C. b. If B C and f is a function from A to C then f is a function from A to B. c. If R is a relation on A x B

0 Question 10 31m 01 5319 Details Let U be the universal set, where: U = {1, 2, 3, 4, 5, 6, 7, 3, 9, 10, 11, 12, 13, 14, 15, 16} Let sets A, B, and C be subsets of U, where: A = {3, 5, 6, 9, 10} B = {5,11,14,15} C = {4,7,10,12,14,16} Find the following: LIST the elements in the set C" U Q: C' U @={| |} Enter the elements as a list, separated by

AD CS Configuration DESTINATION SERVER Confirmation PLARDCOLPRACTICELABS.COM Credentials To configure the following roles, role services, or features, click Configure. Fele Services Active Directory Certificate Services SUP TYPE Certification Authority CA TYPE CA Type Enterprise Rost Private Kity Cryptographic provider ESAUMicrosoft Software Key

At the fair concession stand, a drink costs $7.50, and a hot dog c0515 32. 5'5. ff Jacob has $18 to spend on food, how many (if each am can he buy? 0 3 drinks and 3\" hot dogs 0 3 drinks and 5 hot dogs 0 2 drinks and ? hot dogs O 2? drinks and 5 hot dogs

Exercise IV: Taxes In a simplified model for taxes, a person will pay: . 10% on the first $40,000 earned; . 20%% on the next $50,000 earned; . 40% on the rest. For instance, a person earning $30,000 will pay $3,000 in taxes, and a person earning $100,000 will pay 10% x 40, 000 + 20% x 50, 000 + 40% x 10,000 = 18, 000 dollars in taxes. 1. If a

May I get some help with this Lisa is driving on the highway. She begins the trip with 18 gallons of gas in her car. The car uses up one gallon of gas every 35 miles. Let G represent the number of gallons of gas she has left in her tank, and let D represent the total distance (in miles) she has traveled. Write an equation relating G to D, and then

(c) Consider the following set of simultaneous equations: Yl,=a, +6, X1, +ul, (4) Y 2,= 02+ B, Y 1,+ BY3, +u2,(5) Y 3,= a;+ B2Y 2,+62X2,+u3, (6) Can you estimate equation (4) with OLS assuming X1 and X 2 are exogenous? Explain. (d) Write down the reduced form equation for the endogenous variables Y 2, and Y3, ? (e) Can you estimate equations (5)

Identify quantitative oversight and compliance indicators. Explai antitative data collection methods (evaluation m eth

Can you please help me solve this? Unit 2 Quiz_Practice_ch2021 The vector equation alt) = +t- traces out a linear path. Give a DIFFERENT vector equation which traces out the same linear path. You may not use the vectors or in your answer. Please write your answer in the form: b(t) = + t

One serving of oatmeal has 8 grams of fiber, which is 33% of the recommended daily amount. What is the total recommended daily amount of fiber? Round your answer to the nearest gram

Felipe invested 17,000 dollars in a business and in 32 months he obtained a profit of 11,103.97. If you had invested the money in a bank, what compounding interest rate each month would have given you the same profit?

A particular camera has a focal length of 35 millimeters (mm). A photographer wants to get a closeup of geological formation just about one and a third foot away or at a value of 0.4 meter. A standard equation applies as follows to find image distance ( ) involving object distance ( ) and focal length ( ). Since the focal lengths are expressed in

HELLO PLEASE HELP ME ANSWER THIS. PLEASE ADD EXPLANATIONS AND FIGURES. I'VE BEEN TRYING TO ANSWER THESE FOR HOURS NOW HUHU THANK YOU <3 A conoid is a solid having a circular base such that every plane section perpendicular to the diameter of the base is an isosceles triangle. Find the volume of the conoid having a radius of 2 m and the altitude of

n BPMN, arrows represent: Multiple choice question. activities sequence flows events gateways

During 2008 the S&P 500 index depreciated by 37.6%. Assuming that this trend had continued, how much would a $5,000 investment in an S&P index fund have been worth after 9 years? (Round your answer to the nearest cent.)

Problem 15. (10 points) If A and B are 4 x 4 matrices, det( A) = 4, det (B) = -9, then det ( AB) = det(-3A) = det ( ATB) det ( A2 B 1) = det(-3ABTA 1) = Note: You can earn partial credit on this

Still confused how to use the scientific calculator class provided to do this equation Solve for y in the equation below. Round your answer to the nearest hundredth. Do not round any intermediate computations. 15-9 =7 1 =

Please provide a neat solution. You may use a calculator technique but explain the concepts or formula you will use. Thank you. Items 1-11: 1. Find the area in the first quadrant bounded by the parabola y' = 4x, x = 1 and x = 3. A 9.595 C. 5.955 B. 9.955 D. 5.505 2. Find the ] x sin x cos x dx A % x cos x + 1/8 sin x + C B. - 74 x cos 2x + 1/8 sin

Bonnie volunteers to bring bags of candy to her child's class for the Valentine Day party this year. She buys one bag of candy A containing 150 pieces of candy, one bag of candy B containing 180 pieces of candy, and one bag of candy C containing 330 pieces of candy. She needs to use all the candy to create identical treat bags. How many treat bags

How many gallons of a 90% antifreeze solution must be mixed with 60 gallons of 25% antifreeze to get a mixture that is 80% antifreeze? Use the six-step method

The equations of four lines are given. Identify which lines are perpendicular. Line 1: y =-1 Line 2: y = - - a -2 Line 3: x = -4 Line 4: y + 3 = 2 (ac - 2) O None of the lines are perpendicular. O Lines 1 and 3 are perpendicular, and Lines 2 and 4 are perpendicular. O Lines 2 and 4 are perpendicular. Lines 1 and 3 are perpendicular

To understand the place value of a decimal such as 0.45, it should be thought of as 4 tenths and 5 hundredths. True or False

Before Answering. Freeze the random generator by pressing and holding ctri-a. then ctri-c. Then right click and select paste values (the icon with 1, 2. 3). YOU MUST Do This First! Jumber Rank Bachelor's Degree Random Generator TYPE YOUR TEN SAMPLE STATE: %Degree Method 2 1 Alabama 46 24.5 28 |Michigan 28.1 2 Alaska 28 29 New Mexico 26.9 Sum 281.1

Question 1: Orders and Relations (a) 9 points Let S = {1, 2, ...,20} be a set of 20 elements. Let R1 be a binary relation defined on the elements of S. Suppose that the data structure B, stores the elements of the binary relation as follows: Bili][j] = 1 if (i, j) E R1, and otherwise Bili][j] = 0. Let R2 be a binary relation defined on the

PQRS is a rhombus and PR = TR. Find the measure of LPQR. S T 1160 Q R

Solve this Body - mass index, or BMI, takes both weight and height into account when assessing whether an individual is underweight or overweight. BMI varies directly as ones weight, in pounds, and inversely as the square of one 's height. in inches. In adults , normal values for the BMI are between 20 and 25. A person who weighs 165 pounds and is

Novel: The Kite Runner from chapters 8-13 Even if you haven't read the book, Spark notes offer great summaries of each chapter. 9 Synthesis Paper Now that you've read and discussed the second part of your novel. you will piece together what you've learned and currently understand about your novel. This synthesis paper is not meant to be a summary

Find the measure of angle _AEB in the figure below. Enter on C 48

Violeta tuvo (tener) una niez dura llena de altibajos opens in a dialog , mudanzas y enfermedades. A una edad temprana, Violeta y sus hermanos empezaron (empezar) a cantar y bailar en pequeos restaurantes, salones de baile, plazas y mercados, o en cualquier lugar donde (haber) gente para darles propina. A pesar de las dificultades, cantar y tocar

Suppose that the function f is defined, for all real numbe 2 -5 if x*- 1 f ( x ) = 2 - 4 if x = - 1 Find f (-3), f (-1), and f

Answer 11-15, please. 11. Compute the inverse of A = 4 5 using the Gauss-Jordan Method. (10 points) 12. Let A = [-3 21. solve A [y] = [2, 1. given A-1 = [ 3 7 13. Suppose that U = {a, b, c, d, e}, A = {a, e}, B = {a, b}, and C = {a, b, c}. List the elements of the An B n C' set. 14. Simplify the expression (A' U B')' using De Morgan's Laws. 15.

Physics mcqs 11) The solution of the ODE x2 (24 - 1) = y(x ty) is 12) In case of failure for the homogeneous ODE b1 b z 13) The necessary and sufficient condition for the ODE M(x, y) dx + N(x, y)dy = 0 to be exact is 14) The solution of the initial value problem dy x dx - y = xcos? (@) ; y(1) = is 15) An ODE M(x, y)dx + N(x, y)dy = 0 is said to be

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1 6 Question 1 Suppose that u 2 _2 and v : _;.3 . If Li J. u, then :1: : a 1 (a) 2 (b) 6 (c) 72 (d) *6 (e) none of these Question 2 let u, v and m be vectors in 1R3. If u '1' : 2,1.5'10 : 3: then u - (21) 31.9) is (a) 14 (b) 5 (e) 13 (c) 5 (e) none of these Question 3 Let age be vectors in R3 with \"oil : i : IIUH If the angle between H and v is

CAN SOMEBODY PLEASE PROVIDE THE ANSWERS FOR THIS ENTIRE WORKSHEET IT IS TITLED 4.9.2 PERFORMANCE TASK: THE SUBWAY STOP ON THIS APP PLEASE !!!!! 2.9.2 Project: Performance Task: The Subway Stop Advanced Mathematics Decision Making Points Possible: 120

Consider the following time series: t 1 2 3 4 5 6 7 Yt 120 110 100 96 94 92 88 a. Construct a time series plot. What type of pattern exists in the data? b. Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. c. Regression analysis yields the following forecast equation: 119.71-4.929t;

Question 20 (2 points) In MS Excel 2013, the function ROUNDUP(347.23,-1) will produce a result of

6. Given that AABC ~ AORS, prove algebraically that the ratio of their perimeters is 1:4 if the ratio of their corresponding sides is 1:4

Guillermo, who is of average weight and height, is at a party and would like to keep his blood alcohol concentration low. Up to how many beers (of standard alcohol content) can he drink per hour without having his BAC rise? Multiple choice question. two beers per hour three beers per hour one beer per hour half a beer per hour

For homework st Chapter 1 Functions.pdf e 1 of 5 Q Knowledge & Understanding 1.State the domain and range of each function. a) y = 2x-1 b) y =-3(x-4)2+1 1 c) y = - d) y = \\-3(x+1) x - 2

3. Find the coordinates of the vertices of the triangle formed by the lines: y = 8x - 3, and y = 2x - 3, and y = -x + 6. Show your work in the spaces provided. You may use Geogebra to graph the lines. Submit a screenshot of your graphed lines. If graphing by hand, submit a picture of your graphed lines. The intersection of lines y = 8x - 3 and y =

Please show all work 2. Find the Fourier series representation of the following function piecewise function, which is plotted in the figure below. f(x) = 2TT f(x) = H

(e) Create an element after the text "= HK$", so that it will automatically calculate and display the total amount when the vaue in the pounds field is changed. Also, set the initial value of the element to 0. [15 marks] Price : HK$ 20 per pound x 3 pounds = HK$ 60

The value of a certain rare silver dollar was $40, 000 in 1980. A price history of the silver dollar shows that it has been doubling in value every 20 years. What is the exponential growth model for A , the value of the coin ( in dollars ) t years after 1980 . A = ? Then, use your model to estimate the value ( in dollars) of the coin in 2035.

Math 123 Quantitative Reasoning Project 1 bRocks Submit both an Excel and Word file following your instructor's directions for submission. Use the following parameters and scores in your Excel spreadsheet Methods of Evaluation: There will be an Exam 1, Exam 2, and Exam 3 in this class. A total of 20 homework papers are given and 10 total quizzes

when needed: If you are struggling to solve a math problem, don't be afraid to seek help. Talk to your teacher or a tutor, or join a study group to get help from your peers. There are also many online resources and forums where you can ask questions and get help from experts in the field. DO ENTIRE QUESTIONs Read the problem carefully: Before you

Please leave answers below with no explanation please thanks j Listen How many solutions does this equation have for 0

Find the area of the region bounded by the graphs of the given equations. y = 81x, y = X , x=0, x=3 5 The area is (Type an integer or a simplified fraction.)

For 5-6 solve the equations on the domain 0 s ,

1. Consider x) I 21m2 4kx + 1, for k 72 0. The equation f(x) = 0 has two equal roots. (a) Find the value of k. (5) (b) The line y = p intersects the graph of f. Find all possible values of p. (2) (Total 7 marks)

Find the area of the shaded region (do not include units) 12 13

hello, this question is on my test tomorrow, number 12 and I don't completely understand it so I was wondering if I could get an explanation? thanks so much! Find the value of X. Assume that segments that appear to be tangent are tangent. 100 to 15 = 1/2 ( 10-X ) - 12. 2 ( ArcAb - ArcBc ) 210 150 *\fFind the value of X. Assume that segments that

please help i'm confused Type your answer... 13 1 point What is the slope of a line that is perpendicular to -4x -+ 2y - -8? O y = 2x+4 O y = --4 O y = 5x - 3 O y = -2x + 8

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Help me please show complete solution for the given sequence problem You help your mother in selling "Banana Que". From the money that you mother giving to you, you plan to save Php25 every week for seven weeks. Form a sequence that will show the amount of money you are saving from the first to seventh week.

Upon descent, an airplane is 15,000 feet above the ground. The air traffic control tower is 250 feet tall. The angle of elevation from the top of the tower to the plane is 16 degrees. Find the ground distance from the airplane to the tower. Round to the nearest foot, and enter the number only.

Solve this For the given functions f and g, find the indicated composition . f (x) =x

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I would like you to draw and write a description of the experience of this draw, maybe in a different way. A. ABCD is a square. Points & and F are chosen inside the square such that ABE and BCF are equilateral triangles. Prove that triangle DEF is equilateral

QUESTION 25 Solve the following system of equations: open curly brackets table attributes columnalign left end attributes row cell bold minus bold 2 bold x bold plus bold y bold equals bold minus bold 2 end cell row cell bold 3 bold x bold minus bold 2 bold y bold equals bold 4 end cell end table close (0, 2) (0, -2) ( -2, 0) (2, 0)

I need help due tomorrow Challenge yourself B. You purchase 5 tickets to a football game from an internet ticket agency. In addition to the cost per ticket, the agency charges a convenience charge of $2.50 per ticket. You also choose to pay for rush delivery. which costs $15, The total cost of your order is $352.50, What is the price per Ticket

Suppose you want to have $700,000 for retirement in 30 years. Your account earns 5% interest. Round your answers to the nearest cent. a) How much would you need to deposit in the account each month? b) How much interest will you earn? Calculator

m3a.vhlcentral.com Unita 4A - Prova A Course Hero | Payment Receipt Italian 2 Identificare Identify these five pieces of technology as yours. Modello You see:_ You write: E il mio telecomando. 2. 3. MacBook Air 30 FB F9 esc @ # $ 3 4 5 6 2 W E R T Y U

You have graduated from Clark University with $25,000 in student loans. The loans will be paid over 10 years in equal monthly installments with an interest rate of 5.5%. What is your monthly payment? How much interest will you pay in total over the 10 years

Solve the following differential equation, using any method you like. y (3/x) y = 2x Show all work.

The matrix A given below has two distinct integer eigenvalues. Compute and factor the determinant of A xI, where I is the 4 4 identity matrix. A = 38 44 104 176 9 2 36 56 8 8 20 32 3 2 12 20 . 2. For each eigenvalue of the matrix A in Problem 1, find a basis for the corresponding eigenspace.

Please complete this assignment in its entirety, justifying your answers as you go. Using a method other than the requested method will not earn full credit. 1. List all of the possible rational roots of the polynomial p(x) = 3x5 + 2x\" 4x3 + 11x2 12. Do not solve. If 2 + 31' is a zero ofa polynomial function with real coefficients, what MUST be

Solve this Use the compound interest formula A - Pe" to solve. Round to two decimal places. Find the accumulated value of an investment of $ 2,000 at 8 % compounded continuously for 6 years

3 ) Suppose a brine containing 0. 5 Kilograms Ong) of salt per liter LL) runs into a Jann initially filled with 200 L of water containing yng of salt IF the brine enters at 5 4/ mm the mixture is kept uniform by stirring and The mixture flows out at the same rate, Find the puss of the salt in the faris after 10 minutes &

Write equation in slope intercept form for the line with y-intercept 4 and slope -1/2 = GRAPHS, FUNCTIONS, AND SYSTEMS Writing an equation of a line given its slope and y-intercept Write an equation in slope-intercept form for the line with y-intercept 4 and slope

within the ecosystem: Provide specific examples for the following interactions: O symbiosis (parasitism, mutualism, and commensalism) O predation competition Before submitting your paper, be sure your paper meets all the grading criteria presented in the rubric

Which of the following is equivalent to (a 10 . + da, ) (a, + da To A U B C D d E 0

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