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Mathematics Questions and Answers October 02, 2021

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If your goal is to hone students' mental mathematical ability by deriving the right number sets, what would be the best modern learner-centered strategy to use? A. Number Puzzles B. Numbered Heads Together C. Number Flashcards D. Number Games (the boat is sinking)

Let a and b be integers, let c be a natural number and let p be an odd prime. Prove that if a = b (mod cp) and 26 = 2c (mod p), then a = c (mod p)
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242 Thanks (1 point) Consider the initial value problem 2ty' = 6y, y(-2) = 8. a. Find the value of the constant C and the exponent r so that y = Ct" is the solution of this initial value problem. y help (formulas) b. Determine the largest interval of the form a
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linear equation. find the general solution. \f
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The meter rule with no mass has a 1 kg mass stuck to the 0 cm and a 3 kg mass stuck to the 1 m and at what mark how many centimeters from the 0 cm end is the center of the mass in centimeters

Which of the following is NOT true about experiments that involve voluntary switching between two tasks? Question 18Select one: A. There are switch costs for both tasks. B. Participants tend to produce a series of runs on one task and then a series of runs on the other task. C. Participants perform each task approximately half the time. D. All of

Question 7 Worth 8 points Determine whether or not the vector field is conservative. F(z,y) = (Iny + 2)i+ ()i. Previous
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Mark paid off a loan by making a payment of $6,250, which included simple interest of 5.5% p.a. If he obtained the loan 9 months ago, calculate the amount borrowed and the amount of interest paid on this loan. Amount borrowed. Amount of interest paid

I have some linear algebra questions

Finding x intercepts Find the x-intercept(51 and the coordinates of the vertex for the parabola y= 7x2 7 63:7 9. If there is more than one xintercept, separate them with commas. xInhercept{s): vertex: ('31 0)
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Q1. Two statements are given below. For each, an erroneous proof is provided. There is one main error in each proof. State what this error is and explain why it is an error. (Note that both of these statements are false, but this is irrelevant to the question and your answer.) (a) Statement: For all r E Z, if 2r + 3 = 11 (mod 4), then 4 | r.
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A cat litter company periodically examines its products for variations in the fill weight. The company uses X-bar and R- charts. Eight samples, each containing six detergent boxes, were selected from different batches. Historical data for fill weight (in ounces) of the eight samples is presented below. Sample Sample Mean SampleRange 1 15.80 0.39 2

The table below lists the number of games played in a yearly best-of-seven baseball championship series, along with the expected proportions for the number of games played with teams of equal abilities. Use a 0.05 significance level to test the claim that the actual numbers of games fit the distribution indicated by the expected proportions.
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x^2+y^2=121 Find the area of the square in the figure. 20- . . . 16- 12 x2 + y2 = 121 The area is (Simplify your answer.) 4- X 20-16-12 -8 4 4 8 12 16 20 -12- -16- 20
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A cyclist traveled 20 kilometers per hour faster than an in-line skater. In the time it took the cyclist to travel 80 kilometers, the skater had gone 30 kilometers. Find the speed of the skater

Consider the cost functionC(x) = 7x2+16x+25. (In thousands of dollars.) (a) What is the marginal cost (MC) at production levelx= 4? (b) Use the MC atx= 4 to estimate the cost of producing 4.5 units. (c) Let the revenue function be given byR(x) =x2+ 49x+ 60. What is the break-even point? (d) Compute and compare the marginal revenue (MR) and MC at

A history lecture hall class has 15 students. There is a 15% absentee rate per class meeting. a.) Find the probability that exactly one student will be absent from class. b.) Find the probability that at least 2 students will be absent from class.

Need help in the follow discrete mathematics 5. The recursive algorithm given below can be used to compute god(a, b) where a and b are non-negative integer, not both zero. procedure god(a, b) if a > b then god(a, b) := god(b, a) else if a = 0 then god(a, b) := b else if a = 1 then god(a, b) := 1 else if a and b are even then god(a, b) := 2ged(a/2,
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Asymptotes are shown as dashed lines. The horizontal asymptote is y equals 1. y=1. The vertical asymptotes are x equals negative 1 x=?1 and x equals 1. \f
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Let h(x) = f(g(x)) and p(x) = g(f(x)). Use the table below to compute the following derivatives. a. h'(1) b. p'(2) 3 A X N f(x) 2 3 4 f' (x) - 3 - 6 g(x) 3 4 NINNI g'(x)
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Suppose f(x) is a function whose graph is shown below (not to scale) College Algebra 2.5 - EXERCISES Name: (3) Suppose f(r) is a function whose graph is shown below (not to scale). (4, 5) (-2, 3) (-3, -2) (6, -3) (1, -5) (a) On which interval(s) (values of r) is the function f(r) increasing? (b) On which interval(s) (values of r) is the function
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Lexie, a bowler, claims that her bowling score is more than140 points, on average. Several of her teammates do not believe her, so she does a hypothesis test, at a5% significance level, to persuade them. She bowls18 games. The mean score of the sample games is155 points. Lexie knows from experience that the standard deviation for her bowling score

A recent survey of9social networking sites has a mean of13.29 million visitors for a specificmonth.The standard deviation was3.8 million.Find the98%confidence interval of the truemean.Assume the variable is normallydistributed.Round your answers to at least two decimalplaces. question; ___ <

Use the following to answer questions: A company wants to study the relationship between an employee's length of employment and their number of workdays absent. The company collected the following information on a random sample of seven employees Number of Workdays Absen2 3 3 5 77 8 Length of Employment (in yrs) 56 94 22 0 1.What is the

I did hours per week on the internet and poor mental health over the last 30 days form a hypothesis, and then conduct a statistical analysis on the data in order to determine whether the hypothesis is accurate or not. In addition, you will record the results and make conclusions based on the hypothesis you originally designed. Having the ability
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The cold pool of an MCS helps to maintain the system via: Group of answer choices Initiating new thunderstorms ahead of it in a long line (i.e. provides lifting) None of These Merging together to provide a single, strong, system cold pool Both of These

Suppose y varies directly with a and y = 90 when x = 18. a) Find the equation that relates y and c. b) What is y when x = 27
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Each switch on a panel of 5 light switches may be in an "on" or "off" position at any given time. One possible unique position of all 5 switches is shown. Find the number of possible unique positions for all 5 light switches. 2.Recall the example about Louie's Bistro. You had a choice of 2 salads, mixed or Caesar. You had a choice of 4 entres:

rewrite the quadric function in a vertex form and give the vortex f(x)=x^2-x. show your work and explain how you arrived at your answers in a simplified way

Compute 1240.64 / 12.5. Round the answer appropriately. Express your answer numerically using the proper number of significant figures

1. Based on the first following Figure, what value should the owner carry as an overall cost and schedule estimate for the project (with 95% confidence)? 2. Based on the first following Figure, what value should the owner carry as contingency amount ($) and months (both cost and schedule) for the project (difference between cost and schedule
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An article in a journal reports that 34% of American fathers take no responsibility for child care. A researcher claims that the figure is higher for fathers in the town of Littleton. A random sample of 225 fathers from Littleton yielded 90 who did not help with child care. Is there enough evidence to support the claim using a 4% level of

Please tell me how to solve it, thank you! 6. (6 points) Let g(x) be bounded on [a, b], and let fn(x) = 2 g(x). Prove that fn -+ 9 uniformly on [a, b]
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what are all the values that a correlation coefficient can possible take? -1

2. Which of the following is a statement that describes a problem that can be solved using technology design? The smoke from a forest fire is causing health issues. O The cat will be sprayed with water when it jumps on the couch. O The living room needs to be cleaned. A hockey player needs a stronger shot

A high school principal wishes to estimate how well his students are doing in math. Using 40 randomly chosen tests, he finds that 77% of them received a passing grade. Make a 99% confidence interval for the population proportion of passing test scores. Enter the lower and upper bounds for the interval in the following boxes, respectively. You may

Q1: A cell phone salesperson has kept records on the customers who visited the store. 40% of the customers who visited the store were female. Furthermore, the data show that 35% of the females who visited his store purchased a cell phone, while 20% of the males who visited his store purchased a cell phone. Let A1 represent the event that a

Consider the lines 131 and 2 in R3 given by the parametric equations .1: 5 2 1: y = 7 +15 5 : tE R? z 2 3 a: 8 1 132: y = 13 | a 3 ._ .5 E R. z 9 2 Determine whether 1 and 2 intersect and nd the intersection point if they do
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Linear algebra Solve the system using matrices (row operations} How many solutions are there to this system? A. None B. Exactly 1 G. Exactly 2 D. Exactly 3 E. InfinIter many F. None of the above If there Is one solution, give its ooordin ates in the answer spaces below. If there are infinitely many solutions. enterr in the answer blank for y and
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Why is the interquartile range a more stable measure of variation than the range? Why is the interquartile range a more stable measure of variation than the range? A. It is based on only two scores. B. It is represented as a percentage rather than a raw score. C. It is based on intermediate rather than extreme scores. D. It is represented as a

d Let 61: = :1: + a:(c + :13) be a rst-order, autonomous differential equa where c is a parameter. Do the following: (a) Draw a phase line for the parameter value c = 1, and determine the stability (b) Determine the long term behavior of the solution to this ODE passing through point a:(0) = 1, when 0 = 35 (that is, nd lim $(t) with this initial
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I need to know ho to do this QUESTION 3 What is the future value of an investment of $5,000 earning 4% annual interest rate (APR) compounded quarterly for 3 years? (round to two decimal places and do not include a $)
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1. A force, F = [30,25,70]N is applied over a distance of d=[110,90,140]m . Determine the amount of work done in this situation.(3 marks) 2 Find the torque produced by a cyclist exerting a force of F=[70,30,160]N on the shaft pedal d=[12,15,11]cm long. torque = (F)(d) (4 marks)

D Question 8 1 pts Determine if the relationship represents a function. Choose True or False for the relationship. O True O False
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I want answer in simplest and easiest way to get Police plan to enforce speed limits during the morning rush hour on four different routes into the city. The traps on routes A, B, C, and D are operated 40%, 30%, 20%, and 30% of the time, respectively. Biff always speeds to work, and he has probability 0.2, 0.1, 0.5, and 0.2 of using those routes.
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Show work for full credit. 4 N/m 40sin3t AWWWW 2 kg 1. (10 pts.) A mass of 2 kg is connected to a spring with a constant of 4 N/m in equilibrium, and is acted on by an external force of 40sin3t N. Use Laplace Transforms to solve the resulting Initial Value Problem: 2x, " + 4x1 = 40 sin 3t; x, (0) = x]'(0) = 0 2 N/m 40sin3t AWWWWWW 1 kg 2. (10
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Evelyn pays $15,500 for shares in a new company. She sells the shares 8 years later for $13,000. What was her total return on this investment? Round your answer to the nearest tenth of a percent

Consider the expression P(P(P())) where P(A) denotes the power set of set A. List the elements of P(P(P())) using roster notation.

Select the conversion factors for centimeters and inches. Check all that apply. 2.54cm1in. 2.54in.1cm 1cm2.54in. 1in.2.54cm

The distribution of the sample mean, x overbar, will be normally distributed if the sample is obtained from a population that is normally distributed, regardless of the sample size. Question content area bottom Part 1 Choose the correct answer below. False True

According to the CDC, how long should a person's hands be washed with soap and water when performing hand hygiene? checkmark-icon at least 15 seconds checkmark-icon 5-10 seconds checkmark-icon at least 1 full minute checkmark-icon at least 90 second

the following 6 questions.

A loan of $16,000 with interest at 9% compounded monthly is repaid in 9 years by equal payments made at the end of each 6 months \f
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A knapsack is a bag with two straps that you wear over your shoulders, leavingyour arms free. During the Feast of Apung Mamacalulu , a baratillo sells aknapsack for only 300. If Bernice will buy 50 pieces of knapsack for her onlinebusiness, how much would be her capital for the knapsacks?

I need help with this problem please. Two dice are rolled. Enter the size of the set that corresponds to the event that both dice are the same number. Ex: 8
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Pls show all work need help ASAP f (x ) = 27 - 16x X 2 4d. [2 marks] Use your graphic display calculator to find the equation of the tangent to the graph of y = f (x) at the point (-2, 38.75). Give your answer in the form y = mx + c. 4e. [2 marks] Sketch the graph of the function g (x) = 10x + 40 on the same axes. 4f. [2 marks] Solve the equation
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solve...... It is half of its double: 2 x 57T 2 5TT 12 1 12 6 1 - cost sin 2 We know that 12 is in quadrant I, so it has positive sine, - 1 - cos 6 sin 12 sin to 6 2 1 - V3 2 - V3 = 2 V2 - V3 2 4 2
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The value V (in dollars) of a vehicle depends on the miles x that it has been driven. This is given in the formula V = 22,000-0.25x . After one year, the value of a vehicle is between $ 12,000 and $ 15,000. Which range of miles driven corresponds to this range of values based on the given formula? 28,000 s x
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I need help with this question please OO DOC OOO OOO OOO Which expressions represent the number of circles in Step n? DJ() - 34 3(7 -1) for 7 2 1 Of () - 34 2(n -1) for n > 1 D (1) -3, f (n) - 2+1(n -1) torn > 2 D /(1) - 3, f (7) - 3+f(7 -1) torn = 2 D f (m) = 3n for n 2 1 D / (m) = 3+ 3n for n > 1
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ANSWER THE FOLLOWING QUETSIONS WITH FULL SOLUTION FAIpQLSe_N-zCwLChpDuMs3Rk9gg2V8joXyeEkDqUKXIcq8v500roQ/formResponse (3 - X) f ( x ) = (x- 7) Domain : (-00, 7) U (7, co) Domain : (-00, -7) U (-7, 00) Range : (-00, -1) U (-1, 00) Range : (-00, 1) U (1, 00) O O b. Domain : (-00, -1) U (-1, 00) Domain : (-00, 1) U (1, 00) Range : (-00, 7) U (7, 00 )
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The 2020 budget included a $33 billion increase in military spending. By how much did this added spending shift the AD curve Instructions: Enter your response as a whole number. a. immediately? billion b. over time after all multiplier effects? By more than $33 billion O By $33 billion O By less than $33 billion
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What does stratification mean in random sampling? Question 3 options: those with higher socio-economic status are more likely to be included devising homogenous subgroups to ensure better representation a type of pattern that develops in statistical analysis of results isolating a sample to a single social

Find the angle between the following pairs of vectors v = <1,4> and w = <4,7>

A survey of recent high school graduates regarding literature that they studied during their high school career yielded the following information:604read GonewiththeWind ,914read MobyDick ,494read LordoftheFlies ,129read all three,49read none,109read only GonewiththeWind , 185read GonewiththeWind and LordoftheFlies , and215read LordoftheFlies and

I need answer urgently for this question. I have quiz now. Please help me. Thank you. QUESTION 3: a) Prove the following proposition by using Mathematical Induction. If n 61!? 2 1 , then 1+E 1+E 1+Z1+ 2\"\" :01\")? 1 4 9 r12 {8 marks) b} Given the following sequenoe. Find the recursive formula for the following sequence i. 2, 4, 16, 256, 65536,
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I need a walkthrough of how to find the correct result shown (outlined in green) at the bottom-right. Please write clearly. Consider an elastic string of length L whose ends are held fixed. The string is set in motion from its equilibrium position with an initial velocity ut(x, 0) = g(x). Let L = 10 and a = 1 in parts (b) and (c). (A computer
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Diagonalize the matrices in Exercises 7-20, if possible. The eigenvalues for Exercises 11-16 are as follows: (11) 1 = 1, 2, 3; (12) 1 = 1, 4; (13) A = 5, 1; (14) A = 3, 4; (15) A = 3, 1; (16) 1 = 2, 1. For Exercise 18, one eigenvalue is A = 5 and one eigenvector is (-2, 1, 2). 7. O 6 8. 5 1 0 9. H 5 10. 2 3 4 1 11. -1 4 2 3 4 O 3 1 3
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Math 3403 14.7 Similarity with Area and Volume 1. You have a banner that is 2 feet tall and 8 feet wide, and you would like to scale up the design for a larger banner that is 6 feet tall. How wide must the new, larger banner be? Find at least two methods that kids could use to solve this problem. Include sketches with your work; your sketches
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as soon as possible 1 Question * (2 Points) Using the information below; V, lags V, by : Vi(t) = 120 cos(113t - 40) V2 (t) = 120 cos(113t + 40) V3 (t) = 1.2 sin(113t + 20) VA(t) = 1.5 cos(113t - 70) Vs (t) =-0.1 sin(113t - 110) Vs(t) =-0.8 cos(113t-100) A) -80 B) 30 C) -30 D) 80 E) -120 F) 120 G) -20 H) 20
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A set of n = 16 difference scores has a mean of M D = 4 and a variance of s 2 = 36. Cohen's d for this sample is d = 4/6 True/Fasle

Find the absolute maximum and minimum values for the function on an interval [-1,1] f(x)=.5x^4-2x^3-x^2+6x-.5 Use Ti-84 graphing calculator. Explain your process with the steps you used on the graphing calculator. Explain the values you tested. Show your notation and set up. Show calculation process and answer. Show coenclusion and justification.

1 An airliner carries 150 passengers and has doors with a height of 76 in. Heights of men are normally distributed with-amean of 69.0 in and a standard deviation of 2.8 in. Complete parts (a) through (d). a. If a male passenger is randomly selected, find the probability that he can fit through the doorway without bending. The probability is D
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A (6, 5) B (2, 3 2.5, 2.5 M (3, 2) C
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Coordinate Rules Maze Directions: Working from the START, following the coordinate rules of transformations to complete the maze and reach the FINISH DOX! START (2.3) ( -2.3) Reflect over the Translate 5 left (-2.8) Reflect over the Translate (x-3, y axis and 8 up y-axis (-3,2) (-1,4) (1.-4) (-64) (6.4) (8.-2) Dilate by a scale (-64 ) Rotate 180"
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What is the probability that a randomly selected family has an income less than $57,300? Full question could be found here: https://ibb.co/GVytxMT

what is the difference in synthesizing and summarizing

Please answer ASAP How many molecules are in 0.250 moles of Neon gas? NA= 6.022 x 1023 molecules Hint: A number 323.34 enter as 3.23*10*2. (with 3 significant figures)
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Write each vector as a linear combination of the vectors in S. (If not possible, enter IMPOSSIBLE.) S = {(2, -1, 3), (5, 0, 4)} (a) z = (5, -5, 11) 2 = )$ 1 + (b) v = 23, 1 75 4 4 V = (c) w = (2, -6, 10) W= + (d) u = (3, 1, -1) U= 52
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A fitness center is interested in finding a 98% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 253 members were looked at and their mean number of visits per week was 3.4 and the standard deviation was 1.6. Round answers to 3 decimal places where

Linear Algebra with Computer Application Lessons: - Vector Space - Basis of Dimension - Eigen Values and Eigen Vector Directions: Answer the following problems by showing the complete solution to the problems. In return, I will give you a good and high rating . Thank you so much! Note: Please be careful with the calculations in the problem. Kindly

Letx denote the time it takes to run a road race. Supposex is approximately normally distributed with a mean of190 minutes and a standard deviation of21minutes. If one runner is selected at random, what is the probability that this runner will finish this road race in less than165 minutes? Round your answer to four decimal places.

If four cards are drawn from an ordinary deck without replacement , what is the probability that at least one of the cards is from the club's suit.Hint:usecomplement. Be sure to give your answer as a decimal rounded to the hundredths place .

You are given an integer N. You have to present N as a sum of K distinct odd integers. Which of the following relations make this possible? Pick one or more options 1. K*K>N 2. N%K=0 3. K*K

discuss the distribution functions related to the linear probability model and logit models. How do they differ Regarding logistic (logit) models, distinguish between data at the individual level and grouped data. discuss maximum likelihood estimation (MLE)

4. [0/3 Points] DETAILS PREVIOUS ANSWERS DEVORESTAT7 4.P.003. MY NOTES The error involved in making a certain measurement is a continuous rv X with the following pdf. f (x) = 0.06818 . (5 -x2) -25x52 otherwise (a) Sketch the graph of f (x). (Do this on paper. Your instructor may ask you to turn in this work.) (b) Compute P(X > 0). .273 X (c)
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15 Most counsellors use some variation of key person-centred counselling techniques to provide an effective counselling environment to encourage the client to share their story. Briefly outline how the core principles of person-centred practice can facilitate the sharing process. (Your response should be approximately 75 words) M= e e
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The compression ratio for an adult and child is 30:2. Select one: a. True b. False

Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 5.7-in and a standard deviation of 1.1-in. In what range would you expect to find the middle 50% of most head breadths?

Hello can someone help me solve this problem and explain it? Thank you. Let P ( n ) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. The parts of this exercise outline a strong induction proof that P ( n ) is true for all integers n 18. a) Show that the statements P (18), P (19), P (20), and P

This research examines the conversation of two or more variables. Select one: a. TRUE Experiment b. Correlational Research c. Experimental or Treatment Group d. Observational Research Question 27 Not complete Marked out of 1.00 Not flaggedFlag question Question text In this scale it is used numeric scales in which we know not only the order, but

i want to understand the below more deeply : When we use Newton's method, we're essentially using the tangent line at our current guess (x_0) to approximate the function (f(x)). The x-intercept of this tangent line gives us our next guess (x_1). Because the tangent line is a good approximation to the function near (x_0), the x-intercept of the

Bill deposited $200 into a savings account earning a simple interest rate of 6.10%. How long will it take to earn $45.43 in interest? Express your answer in days (rounded to the nearest day)

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A B C D E F G UI AWN- Four Corners 40 Current Salary $85,000 Current Portfolio $50,000 Annual Investment Rate 6% 7 Salary Growth Rate 5% 8 Portfolio Growth Rate 10% 9 10 Year Beginning Balance Salary 11 New Investment Earnings Ending Balance Age 1 $50,000 $85,000 $5,100 $5.255 $60.355 41 12 2 $60,355 $89,250 $5,355 $6,303 $72.013 42 13 3 $72,013
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Write v as a linear combination of Uj, Uz, and us, if possible. (Enter your answer in terms of uj, u2, and us. If not possible, enter IMPOSSIBLE.) v = (-1, 7, 2), uj = (1, 3, 5), u2 = (3, -1, 5), u3 = (-1, 3, 1)
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Now it's your turn. Read the following advert and then answer the question below.What is the author's purpose and what techniques does he use to achieve it? A model answer is provided for comparison on the next frame. Earthquake Response Relief (E.R.R.) Emergency Appeal During the night of 12th July, a magnitude 8.5 earthquake struck the area in

Question 8 (1 point) Put these numbers in order from lowest to highest. 4/3, 0.07, 4/5, 0.83 O 4/3, 0.07, 4/5, 0.83 O 4/3, 0.83, 4/5, 0.07 O 0.07, 4/5, 0.83, 4/3 Q 0.07, 0.83, 4/5, 4/3
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1. a) Draw an example of a relation that is a function and explain why. [C /2] b) Draw an example of a relation that is NOT a function and explain why. [C /2]
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