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march 2018
4

Mathematics Questions and Answers March 4, 2018

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11. [-78 The following table shows total military and arms trade expenditure for a certain country in 2000, 2006, and 2012. Year t (year since 2000) 0 6 12 Military Expenditure C(t) 390 580 610 ($ billion) (a) Compute the average rate of change of C(t) over the period 2006-2012 (that is, [6, 12]). Be sure to state the units of measurement. HINT

Need answers with full explanation 00 (ilLet 3,- : Z aux\" . where the coefficients an are independent of x and are such that this series and all others in this n 2 0 00 question converge. Show that V' = Z \"a x" '1 , and write down a similar expression for ' H n = 1 y" . Write out explicitly each of the three series as far as the term containing

2. What composition of rigid motions maps AABC to ATUV? B 2 X ARY = O ' T

Reflect on your professional or personal world. What is an example of a situation that you might be able to use an equation with a single unknown to help understand What is an example of a situation that you might not be able to use an equation with a single unknown to understand What makes an equation with a single unknown helpful in one of your

This is a graded discussion: 20 points possible due Aug 30 W2 Discussion Question 1: Examples of Functions in the Real-World 3 3 Purpose: In this discussion question, you will be able to show your understanding of a function and provide examples in real life. In your discussion with your classmates, you will get to critique and provide viewpoints

Do Homework - Homework 8.5 Cauchy-Euler Equations - Google Chrome X https://www.mathxl.com/Student/PlayerHomework.aspx?homeworkld=599185347&questionld=1&flushed=false&cld=6535730¢erwin=yes Fall 2021 Diff. Eq. MWF 11-11:50 AM (1) Francisco Abreu & | 11/30/21 1:55 PM E Homework: Homewor... Question 3, 8.5.11 HW Score: 0%, 0 of 4 points O Points:

1. Expand and simplify each of the following. a) (3x) (-5x) [2 marks K&U]

Point S is on line segment RT. Given ST - 2x - 10, RS - 2x - 5, and RT - 3x + 1, determine the numerical length of RT Answer: RT = Submit Answer attempt 1 0 Privacy Policy Terms of Service

7. A rocket is shot vertically in the air. It's height, h, in any time, t, in seconds, can be modeled by the equation h =-1612 + 184t. Determine, algebraically, the number of seconds it will take the rocket to reach a height of 529 feet

X Question 2 Textbook @ Videos [ [+] Score on last try: 0 of 1 pts. See Details for more. > Next question Get a similar question You can retry this question below The system of linear equations 52 -3 4 has exactly 2 solutions O has exactly 1 solution O has 0 solutions O has infinitely many solutions X Question Help: Video ) Message instructor

Help please The point / lies on the segment MP. Find the coordinates of N so that MN is of MP. M ( - 19, 12) N ( ? , ? ) P (8, -6)

Use the given information to prove that m LPTR = mLOTS. T 2 3 Given: m 4 1 = m

Add. Simplify, if possible. v+3 V - 5 + v - 5 v+3Add. Simplify, if possible. W-7 7-W + 2 W - 36 36 - WPerform the indicated operation. 3-p p + 2 + 36 - p p - 6Perform the indicated operation. 3-P p + 2 + 36 - p -6\f\f\f\f\fTo determine the size of n park's moose population. naturalists catch 72 moose. tag them, and then set them free. Months later

Izzo's Pizza sells four types of pizza crust. Last week, the owner tracked the number sold of each type, and this is what she found. Type of Crust Number Sold Thin crust 313 Thick crust 247 Stuffed crust 170 Pan style 182 Based on this information, of the next 5000 pizzas she sells, how many should she expect to be thin crust? Round your answer to

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Please help with math work: 3. A special rocket is launched from the ground level. The trajectory of the rocket is a parabola. After 10 seconds, the rocket is 59 km above the ground, and after 30 seconds, the rocket is 171 km above the ground. a. Find the quadratic function that describes the position of the rocket above the ground Q km) with

Determine the missing coordinates in the ordered pair (-5,?) so that it will satisfy the given equation 5x+6y=11

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Select the CORRECT statement(s) about the free energy diagram of an uncatalyzed thin gray line) and catalyzed reaction (thick blue line) shown here : 4+ A Free Energy, G B S ES C P Reaction coordinate Exam Question .@Copyright Gagan D. Gupta and Toronto Metropolitan University. Dissemination prohibited. JA) B represents 'binding energy' B) A

Which one of the statements is true for the following equation: * y = 3(5) 2x O the function is increasing O has vertical asymptote at x=0 has y- intercept at (0, 3) O has x-intercept at (2, 0)

1 1 valuate each gives function for x = 2 and x - -2. Then determine when the function is an even function, an odd function, or neither of the two. 1(2) f(-2) Even/Odd/Neither Cunction (x) = 4x - 10 13. 19. 25. 9(x) - 3x4+ 4x - 12 14. 20. 26. 3 h(x) = 3x2 - 1 15. 21. 27. P(x) - 7x- 4x 5 16. 22. 28. q(x) - 6x3 - 7x3+ 12x2-1 17. 23. 29 1 (x) = 20

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Complete parts (a) through (c). (a) Identify where f(x) is undefined or f(x) = 0. (b) Solve f(x) > 0. (c) Solve f(x) 0 on (Type your answer in interval notation.) O B. f(x) is never greater than 0. (c) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. f(x)

ONE-WAY ANOVA INVESTIGATIVE EXERCISE + SOLUTIONS 1/7 (1) In this part you will see how the One-way Anova F-test is done on the calculator. The table in part (2) has three samples of data. Enter each sample of data in a list in your TI-84 Plus or equivalent calculator, carry out One-Way Anova and then fill in the output below. A description of each

If you convert the following system of linear equations into augmented matrix form, what is the (3, 2) entry of the coefficient matrix? 3 + 2636; = 34x1 11x1 =16 37x2 18x3 48x3 :11- 9x2 3x1+14x2 +12x3 =12 The answer is

The number N of cars produced at a certain factory in 1 day after t hours of operation is given by N(t) = 300t - 10t , Ots 10. If the cost C (in dollars) of producing N cars is C(N) = 15,000 + 8000N, find the cost C as a function of the time of operation of the factory What is the cost C as a function of the time t of operation of the factory?

EXAMPLE MP1 TASK Dean can remember number facts by rethinking the fact. For example, he remem- bers 7 X 8 by using (7 X 5) + (7 X 3). He recalls 8 X 4 by thinking (8 X 2) + (8 X 2). Use his method to write two ways you could remember 7 X 9. This task depends on students seeing and using mathematical structure. In this case, the number fact is

1) Find the sum of the following series: 2) Find the sum of the arithmetic series: 3i +2 $2+7i Sum: Sum: 3) Find the sum of the infinite geometric 4) Find the sum of the infinite geometric series, if it exists: series, if it exists: Sum: Sum: 5) Write an explicit rule for the nth term of 6) Write an explicit rule for the nth term of the geometric

Solve the equation. Write the solution set with the exact solutions. Also give approximate solutions to 4 decimal places if necessary. 3 x1 - 6=3

The outside temperature can be estimated based on how fast crickets chirp. At 104 chirps per minute, the temperature is 63 F. At 176 chirps per minute, the temperature is 81 0F. Using this information, you can make a formula that relates chirp rate to temperature. Assume the relationship is linear, that is the points form a straight line when

Consider the following figure. Given: mzRSV = 570 mcTSV = 150 Find : mLRST in degrees mcRST = 4. [-/10 Points] DETAILS ALEXGEOM7 1.2.018. Consider the following figure. R S Given: MLRST = (2x + 9) mcTSV = (3x - 3) mcRSV = 76 Find: X X =

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17 12 13 14 15 16 17 18 19 20 Question Example Step by Step A student claimed that the transformation (x, y) -> (3x, y) is a rigid motion because the segment joining (5, 0) to (5, 2) is transformed to the segment joining (15, 0) to (15, 2), and both of these segments have the same length. Complete the explanation of the student's error. The

Determine the Union x u y. Express the answer in interval notation \f

Solve for the given variable. P - 21 + 2w, for w. O 2P-1 O P-4 21 2 O +1=w O -1= W

Once products are made and sales are finalized, a company must get the products into the hands of its customers. The distribution process is often seen as a brand image contributor, as up until this point, the customer has not yet interacted with the product. In strong SCM processes, a company has robust logistic capabilities and delivery channels

Problem 5 (20 points) Consider the following system of equations: 2 1 - 202 = 1 -3x1 + 2x2 = 0. a (5 points). First we represent this system of equation in matrix form: Ax = b, where A is the matrix of the coefficients, x is the vector of the unknowns and b is the vector of the right-hand sides. Write down A and b. b (5 points). Find the inverse

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Determine the first three nonzero terms in the Taylor polynomial approximation for the given initial value problem 2x" + 2tx = 0; x(0) = 1, x'(0) =0 The Taylor approximation to three nonzero terms is x(t) =

For a certain subspace W, the orthogonal projection of the vector y = 3 onto W 3 is y = 2 . Use this information to find the orthogonal decomposition of y. y = y+z Ex: 5 +

Please answer these multiple-choice questions (1-13). Show your work for each question. These questions are about Exponential Functions. 2. The exact value of the following expression Is: 3. which one of the options is the 4. The simplified form of the following 1. The exact value of the following expression is simplified form of the expression:

7/B/2021 Math245_Section 1.1 Student: Instructor: Date: Course: math245 Assignment: Math245_Section 1.1 1. Find all numbers that are not in the domain of the given expression. Then, give the domain in set notation. y - 6 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The domain of the

determine one possible value for x when 0 x 2 are each of the following Given answers in simplest exact form. s i n 2 3 8 = s i n x , x = 2 3 8

Please give me a clear answer that I can read and break down how you solved the problem . T. Section 5.1 Solve for the unknown: 4M = 48

Write the equation of the line which passes through the points (-6, 4) and (-6, -5), in standard form. All coefficients and constants must be integers

Mind solving these geometry problems for me please. Question 2 1 pts State the triangle congruence theorem and list the corresponding congruent parts to justify. (G.CO.B.8) b. ARTV = AVSR R SQuestion 6 1 pts 7. Suppose LADB = LACE. What information do you need to conclude that AADB = AACE using the ASA Congruence Theorem? (G.CO.B.8) CQuestion 1 1

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My I get some help with this problem? A car rental company offers two plans for renting a car: Plan A: 30 dollars per day and 18 cents per mile Plan B: 50 dollars per day with free unlimited mileage For what range of miles will plan B save you money for a 1 day rental? To save money the mileage must be greater than miles per day. Give your answer

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The boundary line of an inequality has the solutions shown in the table. If the point (2, 1) is a solution to the inequality, which of the following are also solutions? (Choose all that apply.) (1 Point) X W 4 5 y 1 O ( 4, 1) O (2, -1) (1, 4) O (-1, 2)

4 Grant is rolling a standard six-sided number die eight times. How many outcomes are possible

All Calculations must be shown to earn full marks! Methods must be used when solving problems (specifically using matrices) Ann angles must be expressed in radian measure. Radical in the final answers must be reduced. Marks will be deducted. Marks will be deducted for not following these instructions. [4 marks] 2 15. Find the eigenvalues of 1 = Z

Consider a home mortgage of $150,000 at a fixed APR of 3% for 20 years. Complete parts (a) through (c) below. a. Calculate the monthly payment. The monthly payment is $ (Do not round until the final answer. Then round to the nearest cent as needed.) b. Determine the total amount paid over the term of the loan. The total amount paid over the term

My Everest, the highest mountain in the world, is 2654 m higher than Mt. McKinley, the highest mountain in the United States. if The sun of their height is 15,042 m, find the height of each mountain

linear algebra Given the system Ax = 1) below: 1 2 4 IL} 1 _ 4 1 1 x' 5 2 3 G (a) Find the Least Squares solution i of this system. [I-lint: if you get awful l'raetions1 check your work!] {h} Find the projection p of h onto the eolmnn space of A. [I-lint: use 11.] [12} Find the residual r = h p. [d] Verify that r E N[AT}1 i.e., that the residual

25. In the problems below, you will use geometric relationships to find angle measures. Start by finding a special relationship between some of the sides or angles, and use that relationship to write an equation. Solve the equation for the \\'ariab 1e= then use that variable value to answer the original question. 21. Find mifNP

2. Analyze each situation. Identify a reasonable domain and range for each situation. Explain. a. A bowler pays $2.75 per game

Part I. What do you want from me? - What exactly do you want your instructor to give you? What would you want to happen inside the class during our face to face meets? Part II. What can you give in return? - Learning is not a one way process, both parties (You as the class and I) would share knowledge. So, what can you give in return? Part III.

Given the initial equations below for the maximization linear programming problem in terms of variables x and y and slack variables s and t, find the optimal solution: 1x+2y+s = 4 1x- 1y + t= 1 -3x - 2y + P = 0

Let S be the set of students at Chabot, let T be the set of treats available at the cafeteria, and let P(s, t) be "student s has eaten treat t ". Rewrite each of the following statements without using the symbols or or variables. (a) s S suchthat t T , P ( s , t ). (b) s S , P ( s ,ice cream). (c) t T suchthat s S , ~ P ( s , t ). (d) s S , t T

An arrow is fired into the air with an initial upward velocity of 96 feet per second from the top of a building 112 feet high. The equation that gives the hight of the arrow at any time t is h = 112 + 96t - 16t ^ 2. Find the times at which the arrow will be 240 feet in the air? The arrow will be 240 feet in the air after ? and ? seconds

What does it mean that math is a language? Do you agree or disagree? We all have the ability to do math. What techniques for learning language could you apply to learning algebra in this course? How can you build your confidence in math?

You are driving toward an intersection at 20 m/s when billboard catches your eye. While looking at it the light changes from green to red. You look back at the intersection you are approaching when you are about 50 m away from the intersection. It takes you half a second to react before you step on break. What is the minimum acceleration needed so

Which of the following statements is TRUE? A. A rectangle is a special type of rhombus. B. A square is a special type of rectangle. C. A kite is a special type of rectangle. D. A trapezoid is a special type of square

3. Find the general solution to the DE ( x+ m ) dy = (nx - py) dx where min, and p are constants. Express your answer in c(x + m) "

Two blocks are sliding along a frictionless track. Block A (mass 4.81 kg) is moving to the right at 2.50 m/s. Block B (mass 5.77 kg) is moving to the left at 3.00 m/s. Assume the system to be both Block A and Block B. What is the total momentum of the system before the collision? : 0 Left 0 Right SubmilAnsweI Tries 0/10 What is the total momentum

Calculating Pressure in kPa on the foundation Force Applied to the foundation applied is (C) = KN Area of the footing this force is applied to is ( m2 ) (per drawings) So the pressure on the foundation Pressure (kPa) = (C) force (kN) : Area (m2) = (C) (m? ) Builders Academy Australia | RTO Code 21583 | CRICOS Code 03760B @ House of Learning Pty

help me solving this please Let P(x) be the Lagrange interpolating polynomial that fits the data (-3,1); (-1,3) and (4, 3). Then P(3) is: O 3/2 O 29/8 O 25/9 O 25/7

4b. [10p.] Find the equation of the least squares line for the given data (2,1), (0,2), (1,3), (2,2)

Help solving Use the Laws of Logarithms to combine the expression. 2(log- (x) + 2 log-(y) - 3 log7(z)) Need Help? Read It Master It

1. Find the image of the linear transformation ?:?^3? ?^4 defined by. ?(?,?,?) = (? + ? + ?,? - ?,? - ?,? - ?) 2. Let ? be an n-dimensional vector space over the field ? and ?:? ? ? a linear transformation (these transformations of a finite-dimensional space into itself are known as linear operators) such that the rank and nullity of ? are

The height h of an object thrown from the top of a ski lift 2008 feet high after t seconds is h = - 16t + 32t + 2008. For what times is the height of the object at least 1000 feet

Geometry question Find the area of each composite figure. All curves are circular arcs with centers shown. (Round your answers to two decimal places.) (a) ('3) -.6m m2 Need Help?

Data and statistics - week 9 21. What is the mean weight of these nine pigs: 5 sows with a mean of 180 kg and 4 boars with a mean of 207 kg. 22. These dot plots represent the ages of males and females when they retired. Using relevant statistics (mean, median, range, SAD/MAD) compare and contrast the two distributions. Male Age 44 46 48 50 52 54

Math for the Real World: Section 54 (W22) / Lesson 8A Homework Lesson 8A Homework Remaining Time: Unlimited - Question 9 Find the vertex, y-intercept, and direction of the following quadratic function. f(x) =312+12x + -1 1 point Number Help x-coordinate of vertex: -2 How Did I Do? y-coordinate of vertex: Number y-intercept: Number O parabola opens

Chapter 11 Review Questions is called 1). The movement of humans and their possessions from one place to another A. energy B. guidance C. propulsion D. transportation 42. List four main transportation media. 43. True or False? Vehicular systems are onboard technical systems that operate a vehicle. 44. Which of the following vehicular systems

Find the volume of the cylinder. Use 3.14 for pi. Round your answer to the nearest tenth, and enter the number only. Question 5 (1 point) Listen Find the volume of the cone. Use 3.14 for pi. Round your answer to the nearest tenth, and enter the number only. Question 6 (1 point) Listen Find the volume of the cone. Use 3.14 for pi. Round your answer

In the following diagram DF and EF are chords in Circle O and DOE is a central angle. If the measure of arc DF is 150 and the measure of arc EF is 140 , find the measure of

2. Consider the following polygon. Determine the measure of both angles A and B. Show your work. (Not image is not drawn to scale) (16x+7) (13x+2)" 88' G 95' 155' 170'

Need assistance 2. (a) Given the following system of 3 linear equations: x+3y - = = 4 2x+ = =7 x -2y+3= =13 Write the system of linear equations as an augmented matrix equation. (3 marks) (ii) Use Gaussian elimination method to solve the system of linear equations. (7 marks) (b) Mrs. David decided to deposit RM2 500 at the end of every year for 5

3. A professor wants to research about correlation between their students' performance and time spent on watching web-series. The professor asked 7 students about how many hours per week they spent on watching web-series and their grades in the last test. Following plot indicates the ndings of this survey. 100 90 ,. y=-4.5845x+103.58 80 .

E Quiz: Practice Exam 1 Find the domain of the function. Write your answer in set-builder notation. f(X)= Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. X X7 (Type an exact answer, using radicals as needed. Use a comma to separate answers as needed.) B. The set of real numbers

Need help The number y of hits a new search-engine website receives each month can be modeled by y =4080e" where t represents the number of months the website has been operating. In the website's third month, there were 10,000 hits. Find the value of k, and use this value to predict the number of hits the website will receive after 22 months. O

7 Cecilia hired an artist to paint a mural on the wall in her two sons' bedroom. Dimensions of the mural must be 2, ft by 4- ft. What is the area of the mural? The area is 2 (Simplify your answer. Type a mixed numeral, if possible. Otherwise, type a whole number or a fraction.)

Determine if the two triangles can be proven congruent If on write the Congruence Statement and then justify. If not, just say NO. 1. AADBE APORE 2. AXYW = 3. Q B S 4. AABD = 5 . AEFG = 6. AHIJ = Simons I G url svorq of boon of farli oun State the third congruence that must be given to prove that AABC = ADEF using the indicated postulate or

Please do part A B and C . 17. For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C. Part A: Write a function in recursive form for the arithmetic function where the

The sum of the first 15 terms of a geometric sequence with 7 as the first term and a common ratio of -3 is ( a.) 33,480, 783 O b.) 50,221,171 c.) 25, 110,589 d.) 100,442,356

1-HY-M 11:00-12:15 HW Score: 61.1 W1 - Chapter 2 Equations

kindly perform this question in proper steps, and don't miss any step. \f

Solve the following system of equations by elimination method, and classify the system as Consistent or Inconsistent and the equations as Dependent or Independent. Equation 1: 1.5 x + y = 1 Equation 2: 0.8 x + 0.? y = 1.2 a. {Bmarksjl (Solutions for (x. y] coordinates using substitution method] b. (Zmarks) (Classifying the system and the equations)

5. (a) Find the components of vectors P1P2 where pi (5, -2, 1); P2(2, 4, 2) (2) (b) Find the terminal point of the vector that is equivalent to u = (1, 1,3) and whose initial point is B(-1, -1, 2) (2) (c) Find the Euclidean distance between u and v and the cosine angle between the vectors, u = (1, 2, -3, 0), v = (5, 1, 2, -2) (2) (d) determine

Please help: This math questions has 3 parts 2. (12 points) Let f(x) = 2x - 1, and let g be the function whose values shown in the table below. Find and simplify the following: (2.1) (f - 9)(0) (2.2) (go f) (2) (2.3) (fg) (-1) 4 -2 5 -2 0 -1 2 3 -5 Answer: Answer: Answer: Page 16. (10 points) Write an equation for the parabola shown in the graph.

need help with #3 (a) |d(x, y) - d(z, w)|

Ariel left the mall and headed for home. Two hours later, Sarah left the mall on her scooter traveling at 14mph faster than Ariel hoping she would catch up with her. After three hours Sara finally caught up to Ariel.

ohm.lumenlearning.com 0 Question 33 v 80/1 pt '0 3 899 G) Details NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t) : 4.9752 -l 91t l 171. For each of the answers below, put your numerical answer, rounded to 1 decimal place, in the first box and the units, spelled out completely,

Find the inverse. [ 1 2 3 ] [-3 -2 -1 ] [-1 0 1 ] From your answer matrix, enter the value in the first row, third column. If no inverse exists, then enter "no solution".

Provide an example of a simple frequency distribution

1)Considerthefollowingsets: A={3x+1|x} B={x^2|xandx <5} Find AB

7:09 f TE2 KB/S 40.17 - ill .1 5 9 81% Show that the determinant of the matrix below is 1. cos a cos B cos y - sin a sin y - sin a cos y - cos a cos B sin y cosa sin B O sin a cos B cos y + cosa sin y cosa cosy - sin a cos B sin y sin a sin 3 - sin 3 cos Y sin 3 sin y cos B

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