S
  1. study help
  2. subject categories
  3. sciences
  4. mathematics
  5. october 2022
  6. 14

Mathematics Questions and Answers October 14, 2022

Expert-verified solutions to help you succeed

ALL ABOUT BIO STATISTICS 1. A professor wants to know if her introductory statistics class has a good grasp of basic math. Six students are chosen at random from the class and given a math proficiency test. The professor wants the class to be able to score above 70 on the test. The six students get scores of 62, 92, 75, 68, 83, and 95. Based on
image text in transcribed

Exercises Reinforce your understanding in class or at home. Convert to whole numbers, proper fractions, or mixed sunbers [Question 1-7). Works 1. 0.55 - 2 4 J. IS X 5. 36 + 10 6. 0,72 . 20 7. 20,000 X 15,000 56 Convert to decimal numbers (Questions 8-19). 8 _(round down to 9. 16 the hundredths place) 10. & 10 11. 300 12 457 24 (round off to 13.
image text in transcribed

Decimal Notation is 7410 what is Scientific Notation

Determine if the matrix is in row-echelon form. 100020100400-1090001-6

Assume that the heights of a 7-year-old girl are normally distributed. The heights of 8 girls are given as z-scores below. Emily 0.9 Jenny 0.0 Heather -1.3 Shanice 0.0 Sarah 1.7 Marissa -0.2 Tanya 0.8 Alaya -1.2 Use the z-scores to determine which of these girls are taller than the mean height? Group of answer choices Emily Jenny Heather Shanice

Customers arrive at a busy checkout counter at an average rate of 3 per minute. If the distribution of arrivals is Poisson, find the probability that in any given minute there will be 2 or fewer arrivals.

The prevalence of 20/20 vision without corrections among adults in the United States is 35% if 20 adults are chosen at random would it be significant if only 2 had 20/20 vision that it is 2 significantly low number of successes

(geometric sequences) please answer the following questions provide working out ONLY. Don't need to provide explanation 1/ A farmer harvests 4 tonnes of lucerne in his first year of production. In his business plan, he has estimated an annual increase of 6% on his lucerne harvest. a According to this plan, how many tonnes of lucerne should he

A balloon artist is hosting a show with 7 kids. He bought 8 yellow balloons, 8 red balloons, 5 blue balloons. If he wants to give 16 balloons in total for the kids, so each gets two balloons, and including at least 2 yellow balloons, and 1 red balloon, use inclusion exclusion to find the possibilities to choose from the balloons he bought. Don't

A study was conducted to see if annual income is independent of number of years of schooling. The data was divided into three different income levels and four different schooling levels. When conducting a chi-square test of independence, value of the statistic from the sample was X 2 = 14.69. Which of the following is true at the 0.05 level of

Suppose that two course instructors (Prof A and Prof B) are the same age and they are both men. Prof A teaches a first year course ( firstyr=1 ) and Prof B teaches a third year course (f irstyr=0 ). In addition, Prof A's physical appearance rating is 0.5 points higher than that of Prof B. According to our estimated model, how much higher do we
image text in transcribed

Please l need a simple explanation to this. Use the following data sets in problems #4 - #6. Data Set 1: A genetic study was performed on the number of armored plates found on stickleback fish. A random sample of 40 stickleback fish showed the following number of plates: 42 64 62 9 12 62 50 12 27 11 65 64 63 21 49 62 43 65 51 62 12 21 62 62 66 9

Helps solve QMB36OO QUESTIONS. Susanna Nanna is the production manager for a furniture manufacturing company. The company produces tables (X1) and chairs (X2). Each table generates a profit of $80 and requires 3 hours of assembly time and 4 hours of finishing time. Each chair generates $50 of profit and requires 3 hours of assembly time and 2
image text in transcribed

Construct and 99% confidence interval of the mean drive-through service times at dinner for restaurant X. Construct and 99% confidence interval of the mean drive-through service dinner for restaurant Y \f
image text in transcribed

1. Express each vector in terms of 7 and J. 3. Write the coordinates of each Cartesian vector. a) [2,1] b) [3, 5] 9 [-3, 6] d) [5, 0] e) [9, 7] f) [0, 8] g [-6, 0] h) [-5.2, 6.1] 2. Express each vector in the form [a, b]. a) i+ b) 4i 9 2 d) 31 +8f &) 5i2 f) 7i4f g 8.2 h) 2.5i+3.3 4. Determine the magnitude of each vector in question 3. A line
image text in transcribedimage text in transcribed

The lengths of human pregnancies are normally distributed with = 266 days and = 16 days. The area to the right of x = 280 is 0.1908. See the figure below: \f
image text in transcribed

Heather received a $50.50 gift card for a photo center. She used it to buy prints that cost 7 cents each. The remaining balance, B (in dollars), on the card afte buying x prints is given by the following function. B (x) =50.50-0.07x What is the remaining balance on the card if Heather bought 50 prints? ll dollars X
image text in transcribed

Show work please 3. (2 points each) Answer the following: a. Find the prime factorizations of: 1. 17875 ii. 63525 b. Find the standard q and r from the division theorem in the following expression: 63525=17875q+r C. Find LCM(17875,63525) d. Given that GCD(400, y) =100 and LCM(400, y) = 2800, find y. e. Convert 104 to: i. base 2 ii. base 16
image text in transcribed

You wish to compare the average amount of time spent on homework between two classes. You take a sample of 100 students in a large lecture and 25 students in another class. To run your hypothesis test, which formula should be used? Formula 5 Formula 3 Formula 6 Formula 4 \f
image text in transcribed

Acme Annuities recently offered an annuity that pays 5.1 compounded monthly. What equal monthly deposit should be made into this annuity in order to have $ 120,000 14 years?

The correlation coefficient may assume any value between? a. 0 and 1. b. and . c. 0 and 8. d. 1 and 1. e. 1 and 0.

NEED help understanding this \f\fUse the given vectors to answer the following questions. , (a) Find the sum of the vectors. , (a) Find the sum of the vectors.
image text in transcribedimage text in transcribedimage text in transcribed

What is the value of log open parentheses fraction numerator x cubed y over denominator z squared end fraction close parentheses when given the following: log open parentheses x close parentheses equals short dash 1 log open parentheses y close parentheses equals 6 log open parentheses z close parentheses equals 2 a.) short dash 1 b.) 2 c.) 4 d.)

Presentar una retrospectiva de la fase de inicio del proyecto mediante una representacin grfica. Teniendo en cuenta los siguientes aspectos a analizar: - Qu sali bien en esta fase. - Qu no sali bien en esta fase - Qu mejoras se van a implementar para la prxima fase. (recomendaciones de mejora continua)

In scientific notation, (5.2 106) + (3 103) is

The vector field F = yxitalyji v ? conservative Note: You can earn partial credit on th not conservativeLet C be the boundary of the region in the first quadrant bounded by the x-axis, a quarter-circle with radius 4, and the y-axis, oriented counterclockwise starting from the origin. Label the edges of the boundary as C1,C2, C3 starting from the
image text in transcribedimage text in transcribed

7. Tyler's brother works in a shoe store. a. Tyler's brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission? b. The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup? c. Tyler's brother earns $12 per hour. The store offers him a

I need to create a frequency table with the sorta data set, it needs to be binned... I do not know how to bin data for a frequency table... can anyone help me understand how to do this? Is excel required? Sorted Data Set to create table :4, 4, 5, 5, 5, 5, 5.5, 5.5, 5.5, 5.5, 6, 6, 6, 6.5, 6.5, 6.5, 6.5, 7, 7, 7, 7, 7, 7, 7.5, 7.5, 8, 8, 8.5, 9, 10

1.Here are two sequences of 12 dice rolls: X: 3-4-1-6-5-2-3-6-2-4-1-1 Y: 6-6-6-6-6-6-6-6-6-6-6-6 Which one of these statements is correct? Sequence X is more likely than Y. Sequence Y more likely than X. Both sequences are equally likely. Neither sequence could ever happen. I saw they answered the highlighted questions, but it think it is both

For each description, provide an equivalent using c'est or ce sont. Attention! Be sure to place the adjective in its correct position before or after the noun. EXEMPLE: Le professeur est dynamique. C'est un professeur dynamique. La femme est heureuse. C'est une . Le chien est blanc. C'est un . L'tudiante est amricaine. C'est une . Les cours sont

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. Your would like to be 99% confident that you estimate is within 1.5% of the true population proportion. How large of a sample size is required? n =

Do I need to explore covariates in a simple linear regression? In other words, in a simple linear regression, can I only explore the relationship between 1 independent variable and 1 dependent variable and 0 covariates?

How do you solve for annuity due and ordinary annuity? Annuity Due A.) A $ 4.8 million state lottery pays $ 20,000 at the beginning of each month for 20 years. How much money must the state actually have in hand to set up the payments for this prize if money is worth 8.2 %, compounded monthly? (round to the nearest cent) Ordinary Annuity B.)

You have rented a car for one day at a cost of $28 per day. You also buy the insurance, which is $13 per day. When you begin your trip, the tank is full with 19 gallons of gasoline. When you return the car, the gas gauge shows nearly empty. The clerk argues that you should pay for 19 gallons of gasoline, but you think this is unfair. You know that

Fill in the blank. The ---Select--- property of multiplication states that changing the order when multiplying does not affect the

Solve all complete solutions Part lll: Given the 4x4 Matrix solve for the following: Determinant Matrix of Minors Cofactor Matrix Adjoint of the Matrix Invarse R0 b 11 15 16 =10 1 -5 18 4 B7 4 2 20 23 -8 -3 1 Part IV: Given the 5x5 Matrix solve for the determinant; 15 22 44 =13 -5 11 19 4 4 2 -1 20 -33 10 62 7 -5 =2 26 1 S I L Part V: Solve for
image text in transcribed

The ordered array below resulted from taking a sample of 25 batches of 500 AZT vials and determining how many in each batch were defective. Defects 1244556799121215 17 2021232325262727282929 How would you interpret this information?

Perform the operation indicated. left parenthesis 4 z squared plus 7 z minus 5 right parenthesis minus left parenthesis 7 z squared minus 2 z minus 7 right parenthesis

Completa la frase con la palabra ms lgica segn la imagen. El de cumpleaos es de vainilla

Comparisons of Equality: Quantity Using the information provided, complete the comparisons of equality. Follow the ejemplo below. Each blank will be one word. Ejemplo: Yo tengo _____ _______ _____ mi hermana. (libros) -> Yo tengo tantos libros como mi hermana. Question at position 7 7 10 points Question at position 7 Yo hago Question Blank 1 of 3

In a survey of 1,398 officeworkers, 4.2 % said that they do not make personal phone calls. Find the actual number of respondents corresponding to the given percentage. The number of office workers who said that they do not make personal phone calls is nothing. (Round to the nearest integer asneeded.)

A state agency requires a minimum of 5 parts per million (ppm) of dissolved oxygen in order for the oxygen content to be sufficient to support aquatic life. Six water specimens taken from a river at a specific location during the low-water season (July) gave readings of4.8,5.2,5.0,4.9,5.1, and4.6ppmof dissolved oxygen. Do the data provide

The available evidence indicates that there are pronounced cycles in which of the following? Multiple select question. The length of the quiet period The length of the lockup period The number of IPOs The degree of IPO underpricing

Which of the following best describes current practice in weighting and combining components of a composite mark? Most teachers Group of answer choices do not use composite marks. equate before they weight. fail to equate before they weight. rely on computerized marking systems

(a) The time, X minutes, taken by Fred Fast to install a satellite dish may be assumed to be a normal random variable with mean 134 and standard deviation 16. (i) Determine P(X <150) (ii) Determine, to one decimal place, the time exceeded by 10 percent of installations. (b) The time, Y minutes, taken by Sid Slow to install a satellite dish may

As a Supply Chain Manager, what initiatives will you undertake to meet customer demand at minimum cost? Justify your initiatives with data
image text in transcribed

Read the following statement below and determine if it is true or false when comparing high-speed sintering (HSS) to selective laser sintering (SLS). "HSS heats the polymer much slower than SLS." Group of answer choices True False

summarize what u read on simple and compound interest,Effective Rate,present value,Present Value of an Annuity; Amortization Future Value of an Annuity, Continuous Compounding,in Finite Mathematics Margaret L. Lial; Raymond N. Greenwell; Nathan P. Ritchey

Perform the operation indicated. 7 y minus 2 left parenthesis 7 y squared minus 3 right parenthesis minus left parenthesis negative 5 y squared plus y minus 5 right parenthesis

Hello. I have uploaded the excel sheet but cannot attach it here. I am working question below on excel. Please let me have your suggestions for part (a) and also i want to check my answers for the rest of the questions. Thank you for your help 1. You are planning to invest in the following stocks: find below a table with their respective Share

Heather plans to purchase a new SUV. The dealer requires a 20% down payment on the $33,000 vehicle. Heather will finance the rest of the cost with a fixed-rate amortized auto loan at 9% annual interest with monthly payments over 6 years. Complete the parts below. Do not round any intermediate computations. Round your final answers to the nearest

It is requested that plz solve the question neatly as it is for my online assignment and it holds great assessment.. I will be at your debt... Q1 Suppose that the random variables X and Y' are independent, and both of them are uniformly distributed on the interval (0, a], a > 0. That is, the probability density functions of X and Y are given,
image text in transcribed

(find the sum of infinite geometric sequences) please answer the following questions provide working out ONLY ON PAPER. Don't need to provide explanation 1/ A defiant child walks 10 metres towards his mother in the first minute, 4 metres in the second minute and 1.6 metres in the third minute. If the child continues to approach in this same
image text in transcribed

I need the answers to this please Using the sampling distribution shown in Figure 1, indicate whether each sample proportion is (i) reasonably likely to occur, (ii) unusual but might occur occasionally, or (iii) extremely unlikely to ever occur. 0.02 0.09 0.16 0.23 0.30 0.37 0.44 0.51 0.58 Figure 1 Sampling distribution (a) p = 0.11 is (b) p =
image text in transcribed

Ashley has half as much to do as Bernice. Cristina has three times as much to do as Ashley. Bernice works as fast as Ashley and half as fast as Cristina. If they all started at the same time, the work will be finished first by: A. Ashley B. Bernice C. Cristina D. Ashley and Bernice finishing simultaneously

find the are of triangle 3 inch tall one side is 7.5 inches the base is 4 inches

1.) Use the Excel Solver output for a LP problem whose objective was to maximize profits, to determine by how much the right-hand side of the labor constraint can increase before it becomes necessary to recalculate the linear program. Objective Function Value = 26.40 Variable Cells FinalReducedObjectiveAllowableAllowable

Test ZG Calculus 3 Iune 24, 21112 (3) (21) pts.) For one mole of an ideal gas, the pressure P, volume V, and tem- perature T are related by the equation PV = RT, where R is a constant. Suppose P is measured to be 2|] and T is measured to be 320. (a) If the pressure is increasing at the rate of 0.05 and the temperature is increasing at the rate of
image text in transcribed

E Calgary Board of Education | (Be-Learn b bl e t .. 2 9, Determine the sum of the infinite geometric series 4 16 64 10. Three sums obtained from a particular infinite geometric series are S, =10, , =15, ; b .2 Determine the sum of this entire infinite series. Calgary Board of Education CBe-Learn 7. In a geometric series, where r = 3 and S, =
image text in transcribedimage text in transcribed

please show your work for the following problem 9201 AM Fri May 22 (3 pts) (2 ptS) (3 pts) (3 pts) (2 ptS) (2 ptS) 1. A recent article stated that the average person with a cold drinks 8.5 glasses of orange juice a day. An enterprising public health student decides to test that claim and selected a sample of 5 cold sufferers. The number of glasses
image text in transcribed

What is the z- test?State in what circumstance you would perform a z test and give an example of a study for which the z-test would be appropriate.

Memria Seleccione una: a. Detalha as realizaes, resultados, fatos e objetivos de interesse para os acionistas de uma empresA. b. No obrigatriA. c. Reflete o estado da empresa em um momento da sua vidA. d. Refere-se s perdas e ganhos que ocorrem na empresA

The car is __________. Question 10 options: a) my b) mine

\f
image text in transcribed

i need help with question 5 ** 6 -6.9 Damage to well-built structure The Richter severe damage to ENERGY FROM EARTHQUAKES poorly built ones scale The amount of energy released during an earthquake Measures energy waves emitted by earthquake Buildings displaced can be approximated using the formula: 0- 1.9 Can be detected 7. 7.9 from foundations;
image text in transcribed

A public school system wanted to know whether the reading levels of the students at two of its schools were different. The study that was conducted tested an enormous number of students, and concluded that students attending School A scored significantly higher than those attending School B. However, the difference between the means of the two
image text in transcribed

Which ONE of the following equations is CORRECT? Select one: Oa 'ty' = (xty)' Ob y xyl=y" Oc. I'XI' = I 10 Od. oxy' = (x+y)"
image text in transcribed

In each pair of sentences, select the one that is punctuated properly. Charity fraud has become a huge problem; thus it is wise for doners to scrutinize each charity to be sure that it is legitimate. Charity fraud has become a huge problem, thus it is wise for doners to scrutinize each charity to be sure that it is legitimate

find the value of b and explain your answer? 2b+3=7

A survey of 507 citizens found that 374 of them favor a new bill introduced by the city. We want to find a 95% confidence interval for the true proportion of the population who favor the bill. What is the lower limit interval? (round to 3 decimal digits)

What are a few of the approaches to studying history that John Green mentions at the beginning of the video?How can studying from different approaches or perspectives be both good and bad?About Egyptian civilization?

The perimeter of an equilateral triangle is 15. Find the length of the apothem and the area of the triangle, respectively. 53-3 , 253-2 53-6 , 253-4 53-2 , 753-2 52 , 754 53-3 , 253-4 None of the above

does a correlation of .902 in a paired t test mean that it rejected the null hypothesis

The height of adult males is normally distributed with a mean of 1.75cm and a standard deviation of 30cm. a)Calculate the probability that a randomly selected individual is more than 180 cm? b)Suppose that a sample of size 16 is big enough for the central limit theorem to apply to the average height of a random sample of adult males. What is the

Use critical thinking to determine whether the sampling method appears to be sound or is flawed. 1) An airline company advertises that 100% of their flights are on time after checking 5 randomly selected flights and finding that these 5 were on time. What is wrong with their claim? SHORT ANSWER.Write the word or phrase that best completes each

A company found that the mean distance their employees commute to the office is 25 miles with a standard deviation of 6 miles. Assuming normal distribution, what is the probability that a random employee commutes between 28 and 32 miles?

Consider the following graph. Which of the following describes the edges shown as yellow? Select all answers that apply. Q10.png Group of answer choices A Hamiltonian path Not a path A path between A and B The shortest path between A and B

Construct the confidence interval for the population mean mu. cequals 0.98 , x overbar = 15.9 , sigma= 2.0 , and n= 35 A 98 % confidence interval for mu is ( ) (Round to one decimal place as needed.)

WESTERNCULTURE GENERALLY PORTRAYS ELDERLY INDIVIDUALS IN A positive gait? true or false

Riddler, who weighs 95 kg, cycles on a Monark arm ergometer as Batman recently damaged his legs in a fight with Harley Quinn as he tried to save her. Assuming that his oxygen cost for this level of exercise is 25 ml/kg/min, calculate Riddlers work rate in watts

The object of the lesson is for the focus learner to gain fluency in number sense with composing and decomposing numbers within 10

Plz answer it as soooon as possible ,, need hand written 11. {a} An insurance company has a portfolio of independent policies with mate claims We 5'1 and 32 prospectively. Suppose that for Ir = 1,21 3!: = 23],; has a compound binomial i=1 distribution, where the claim number, Np\" follows a binomial distribution Births, pg} with r: = 1|]I p1 =
image text in transcribed

In this question, work step-by-step through an optimization problem. A craftsman wants to make a cylindrical jewelry box that has volume, V , equal to 65 cubic inches.He will make the base and side of the box out of a metal that costs 30 cents per square inch. The lid of the box will be made from a metal with a more ornate finish which costs 100

Consider the graph given above . Add an edge so the resulting graph has an Euler circuit without repeating at existing edge ) . WX Now give an Euler circuit t hrough the graph with this new edge by listing the vertices in the order visited
image text in transcribed

Use the product, quotient, and power rules, as necessary, to simplify the following expression. Write the answer with only positive exponents. StartFraction left parenthesis 12 Superscript negative 4 Baseline right parenthesis Superscript negative 2 Over 12 Superscript negative 6 EndFraction

Suppose that the rate of reabsorption from the aggregate tubules can be described by the equation T 5 TmPx kt 1Px where Px is the plasma concentration of sub stance x, T is the rate of reabsorption, Tm is the maximum transport rate, and kt is the transport constant, equal to the concentration at half maximal transport. A. Write an equation for the

2. What were the findings of the following on the case: i. Federal Court of Australia ii. High Court of Australia
image text in transcribed

How do you differentiate between (like how do you know when to use which of them) A: one sample z-test B:one-sample t-test C: t-test for the difference between means for two related samples D: t-test for the difference between means for two independent samples with homogeneity of variance E: t-test for the difference between means for two

The fill amount of bottles of a soft drink is normallydistributed, with a mean of 3.0 liters and a standard deviation of 0.07 liter. Suppose you select a random sample of 25 bottles. a. What is the probability that the sample mean will be between 2.99 and 3.0 liters ? b. What is the probability that the sample mean will be below 2.98 liters ? c.

.............. (1 point) Heart transplants. The Stanford University Heart Transplant Study was conducted to determine whether an experimental heart transplant program increased lifespan. Each patient entering the program was designated an official heart transplant candidate, meaning that he was gravely ill and would most likely benefit from a new
image text in transcribed

While buying tickets for an upcoming game, you notice that the average seat costs $100 and a premium seat costs $300. You struggle with the choice, but end up buying the premium seat ticket. What is your opportunity cost? Question 3 options: A) three average seat tickets plus $100. B) three average seat tickets. C) three average seat tickets plus

1)Suppose A and B are two events with probabilities: P(A c )=.70,P(B)=.65,P(AB)=.80. Find the following: a) P(AB). b) P(A). c) P(B c ). 2)A company manufactures a large number of rods. The lengths of the rods are normally distributed with a mean length of 4.4 inches and a standard deviation of .5 inches. If you choose a rod at random, what is the

Perform a phase-plane analysis for the following model of two competing populations, N1 and N2: N _1=0.3 N_1 ((50-0.833 N_2-N_1)/15)

\f
image text in transcribed

1. Vector v is shown in the graph. (-3,4) 2 -5 -4 X -3 -2 -1 1\f\f
image text in transcribedimage text in transcribedimage text in transcribed

3. Two variables, x and y, have a correlation of 0.75. If a has a mean of 25 and a standard deviation of 3, and y has a mean of 12 and a standard deviation of 6, which of the following is the least-squares regression line for the two variables? (A) y - -25.5 + 1.5x O (B) y = 12 + 1.5x (Cy = 12 + 0.75x (D) y = 16 + 0.75x (E) Not enough information
image text in transcribed

\f
image text in transcribed

I am confused on where to start? A lot of subjects I am falling behind because i was sick, therefore i can't really manage online well, could you please show the steps to solve? 42. The function f(x) = x2 has two normal lines drawn to it at the points on its graph where x = -1 and x = 1. What are the coordinates of the point where the two normal
image text in transcribed

Write an rx for a 55 year old for varenicline for smoking cessation. Write for starter pack and continuing pack

Which graph would illustrate that a change to clean, sustainable energy has decreased the need for fossil fuels, thus increasing production by decreasing costs? Group of answer choices A line graph. The y-axis is labeled Price Level and has two points, P and P1, which is located below P. The x-axis is labeled Real GDP and has two points, Y and Y1,

Showing 700 - 800 of 1497
  • 8 / 15