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Mathematics Questions and Answers September 28, 2021

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From a table inside a room with current temperature of 25 degrees Celsius, a left over Fried Chicken is removed and placed inside a refrigerator set to a temperature of 3 degrees Celsius. After 6 minutes the temperature of the chicken is 20 degrees Celsius. What is the temperature of the chicken 27 minutes after it was placed in the refrigerator?

For two functions, at) and 9(3), the domain of (f 0 530(3) must be contained within the domain of g(:n). O a] This statement is always true. 0 hi This statement is somtimes true. 0 c} This statement is never true
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ENTRY 1 First Name firstname Last Name lastname Address lastname Gender Male Phone lastname Year 2015 ENTRY 2 same as Entry2 First Name firstname Last Name lastname Address lastname Gender Male Phone lastname Year 2015 . Submit
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2. The L. quadrature rule for [-1, 1] uses four nodes: , = -1, f, = 1 and t, and to chosen optimally. to minimise the error. (a) Write down the system of equations for the nodes and weights and solve this exactly Hint: aim for an equation involving 1 + t; but not w or w2. (b) Another way to find the nodes for the , rule is to observe that it
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Harry is looking into the distance to the far end of his used car lot. He sees two black 2014 Mini Coopers. Of the two, the one that projects a ______ image onto Harry's retinae must be farther away. more textured lower darker smaller

Solve the system of equations. x minus 3y minus z = negative 9 minus x plus 8yminus4 z = 24 2xminus 15yplus7 z = negative 45

Arrange the following measurements in order from smallest to largest:31 C, 13 qt, 17 pt, 4 gal. a. 31 C, 17 pt, 13 qt, 4 gal b. 31 C, 4 gal, 17 pt, 13 qt c. 4 gal, 13 qt, 17 pt, 31 C d. 13 qt, 17 pt, 4 gal, 31 C 8. Myrtle drinks 3.1 C of milk every day. How many gallons will she require for two weeks? a. 5.42 b. 2.71 c. 3.83 d. 3.99 9. Convert 679

Which of the following about inventory turnover is true?

Use a calculator to verify that( x ) =151.4,( x 2 ) =3341.34,( y ) =249,( y 2 ) =10579and( x y ) =5592.1. Compute r . (Enter a number. Round to 3 decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r , we can not draw any conclusions for the behavior of y as

1. Differentiate the following functions by using derivative rules. (a) y = 27 sin(t) cos(t) ( b ) f ( t ) = ( 3t - 1 ) ( 2t - 2 ) - 1 2. Suppose f (#) = ; and f' (7) = -3, and let g(x) = f(x) sin(x) and h(x) = cos(z) (x) . Find the following derivatives. (a) g' (#) (b) h ( # ) 3. If f(3) = 4, g(3) = 2, f'(x) = -6, and g'(x) = 5, find the
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The angles of a triangle add up to 180 degrees. The second angle is 20 degrees larger than the smallest angle. The third angle is 3 times as big as the smallest angle. Find the measure of the smallest angle (in degrees) degrees
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Need help! 16 DETAILS SOWRECMATH3 24.1.006. MY NOTES ASK YOUR TEACHER Someone has been using the following nonstandard units in finding the areas of regions. Unit P Unit Q Unit R (a) Tell whether x or 20 is greater, and explain. 20 P's = X R's 20 ? +x because unit P is ? than unit R. (b) Tell which of y or x is greater, and explain. y Q's = X R's
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In planning her retirement, Liza deposits some money at 3.5% interest, with twice as much deposited at 4.5%. Find the amount deposited at each rate if the total annual interest income is $1750 She deposited $ at 3.5% and $ at 4.5% 5 n 6
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Area Models e 1: Draw pictures of the pattern when x = 4 and 3: Create a graph X = 0.5. of y versus x 5: Find the solution to y = 15 and identify it on the graph. 2: Draw a picture of the pattern which y = 3(x + 2) describes any 4: Find the solution to y = stage x. 0 on the graph and in the equation. 6: Find the 7: Write the solution to y =
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Select the best answer choice in the following seven questions. 1. Identify the simplest form for the addition of the functions f(x) = Vx +3and g(x) =3Vx-1. a. 3x+2 b. 3 Vx+ 2 x+3 + 3V X-1 (5+ 9) c. 4V/x-2 d. 4Vx+2
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Please do show all steps Graded Homewor 5. [3 pts] Jeremy received an inheritance check worth $30000. He invested all of the money, with part invested at 8% and the remainder at 6%, with both investments paying simple interest. Jeremy's total annual interest from these two investments was $2266. How much did Jeremy invest at each rate? Let = =_
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in math 205: 4+3 = 12, what base is this, and why do you think

What is the preferred procedure if more than one coefficient of the multiple regression equation is found to be not significant? Multiple choice question. Drop all of the independent variables that are not significant and rerun the regression. Check to see if the non-significant variables are autocorrelated. Drop the independent variable with the

A correlation coefficient between "college entrance exam" grades and scholastic achievement was found to be -1.08. On the basis of this, you would tell the university that: a. Students who do best on this exam will make the worst students. b. They should hire a new statistician. c. The entrance exam is a good predictor of success. d. The exam is a

You deposit $3000 in an account earning 8% interest compounded monthly. How much will you have in the account in 10 years?

Same story.Consider a test for a disease that is 80%specific and99%sensitive.Supposeyou test 5,100 people. If 100 people have the disease and 5,000people do not have the disease,how many false negatives will you have?how many false negatives will you have?

The count in a bacteria culture was 200 after 10 minutes and 1700 after 35 minutes. Assuming the count grows exponentially, What was the initial size of the culture? Find the doubling period. Find the population after 60 minutes. When will the population reach 12000. You may enter the exact value or round to 2 decimal places.

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in the table below ("Global health observatory," 2013). In addition, the proportion of deaths of females from all causes for the same age groups are also in table below. Table: Deaths of Females for Different Age Groups Age 5-14 15-29 30-49
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Describe a scenario where correlation does not equal causation and explain it?

e. What is your statistical conclusion at o = 0.001? f. What is your conclusion in plain English based on your answer to part (e)
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B T5. Velma Vasquez, fund manager of the Vasquez Value Fund, manages a portfolio of250 common stocks. Velma relies on various statistics, such as variance, to assess the overall risk of stocks in an economic sector. Her staff reported that for a sample 14 utilityr stocks the mean annualized return was 14% and that the variance was 3%. The 95%
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The average annual salary of employees at Wintertime Sports was $28,750 last year. This year the company opened another store. Suppose a random sample of 18 employees had an average annual salary of x = $25 with sample standard deviation of s = $4230. Use a 1% level of significance to test the claim that the average annual salary for all employees

3. The weight of apples a particular fruit picker is able to harvest each day has a mean of 1500kg with a standard deviation of 200kg. The fruit picker is paid $50 per day, plus $0.10 for each kilogram of apples he harvests. Calculate the mean and standard deviation of the fruit picker's daily earnings
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Identify the measure of the given angle. All angle measures are multiples of 30 or 45 degrees
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Hi it is aboiut general topology. If you write by hand it must be clear and understandable. a) Prove that if there exists a family F of subsets of a set X that satisfy the following conditions: - X and the void belong to X. - The finite union of sets of family F is a set of family F. - The arbitrary intersection of sets in family F belongs to

The $750 monthly payment on a 7 year lease agreement on a compact car was based on a down payment of $3,000 and a residual value of $6,000 payable at the end of the lease. What was the purchase price (MSRP) of the car if money earns 2.6% compounded semi-annually? Round your answer to 2 decimal places.

6. Rationalize the denominators to simplify the expressions. Assume the variables represent positive real numbers. [36335 5ix4ya 3" a I\" W I". Simplify the expressions. Assume the variables represent positive real numbers. a)1i491*y7 b):.i625x7y11215 8. Simplify the expressions. Assume all variables represent positive real numbers. mwam \\f50m bf
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47. A survey of 10 students was conducted to investigate the amount of time they spend on social media each day. Students were given a timer and asked to record the number of minutes spent every time they accessed social media. The students' total times for one day are given below (in minutes). 45 57 63 79 84 92 99 105 117 145 The interquartile
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In a research study, it has been found by PAL that the scheduled flight from San Francisco due in Manila International Airport at 1:15 pm is uniformly distributed in minutes in the range between 12:55 pm to 2:15 pm. a. Write out the expression which defines the probability distribution for x. Define the random variable x. b. What is the

Es el parmetro del modelo pedaggico que responde a la interrogante sobre los elementos de la ciencia y la cultura con los cuales transformar: determinar cules y seleccionarlos acorde con el contexto y caractersticas

How do I solve this problem? In a survey of 2294 adults, 733 say they believe in UFOs. Construct a 95% confidence interval for the population proportion of adults who believe in UFOs. A 95% confidence interval for the population proportions is ( , ) Interpret your results. a) the endpoints of the given confidence interval shows that 95% of adults

Consider the graph of the function P shown below. Describe the transformations we apply to P to obtain the graph of the function F \f
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Pedro, Jose, and Alex are splitting a bat and a glove. Their bids are listed below. Fill in the chart and show work wherever possible. Pedro Jose Alex Estate Bat 500 800 550 Glove 475 400 500 Sum of Bids Fair share Assigned Objects SURPLUS Value of Objects Cash you owe/are owed (fair share - value of objects) SURPLUS Share of surplus Final
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1. A random sample of 36 drinks from a soft-drink machine resulted in an average content of 21.9 deciliters with a standard deviation of 1.42 deciliters. Test the hypothesis that u
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9.20 - 22 hello can i get a step by step for these questions \f
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6. A restaurant is open twelve hours daily from 8 am to 8 pm. Its peak hours are 1 pm for lunch and 6 pm for dinner, with lunch twice as busy as dinner. Draw what could be a continuous arrival rate function Mt) for an IPP modeling customer arrival. When labeling the horizontal axis, let 6 = 0 correspond to 8 am and t = 12 correspond to 8 pm. Label
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D Question 4 1 pts To find your p-value after calculating a z-score, what would you use? Nothing, I'm done. The z-score is the answer. O Multiply by N O Multiple by 100 O Use a table of z-scores D Question 5 1 pts Compute the mean for your GPA Include two numbers after the decimal. D Question 6 1 pts Compute the standard deviation for your GPA
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A computer purchased for $1,450 loses 17% of its value every year. The computer's value can be modeled by the function v(t)=a x b t , where v is the dollar value and t the number if years since purchase A. In the exponential model a= _______ and b= _________ b. In how many years will the computer be worth half its original value? Round answer to 1

Please help if you can............................ If steps are available please help \f
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Need help with the below 10 questions - please and thank you!! A rm packages and ships 1-pound jars of instant coffee. The cost C of shipping is 40 cents for the first pound and 25 cents for each additional pound. Write C as a function of the weight W in pounds for 0 15, 000 b. 130 + 0.02S if S > 15, 000 O 60 if S 15, 000 d. -170 + 0.02S if S >
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True or False? When performing a Mann-Whitney U test, one should always use the higher value of the calculated U values to compare to the critical U value while making the decision rule.

A store manager wishes to find out whether there is a relationship between the age of her employees and the number of sick days they take each year. The data for the sample follow. Test the hypothesis at=0.05. Use Table I. Age, x182639485358Days, y16129562 Find the correlation coefficient (r). a.-0.979 b.0.979 c.0.911 d.-0.911 Which one?

Show Instructions [ | Question 1 Find the area of the sector. 13in O zmn: fir (O 563771'1_'1: L O 170 | O None of the other answers are correct Question 2 Which expression below represents the area of the shaded sector? Question 3 Find the area of the sector. 9mi O Tomi? i 297 [ 8 None of the other answers are correct | o 225 Quizzes > M13: Exam
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Create a game (can involve a raffle, spinner, marbles in a bag, dice, etc.) that involves expected value. Describe the game in detail. What is the expected value of the game? Show all your work. Is it a fair game? Explain why or why not. Change one thing about your game. Do NOT calculate the new expected value of your game.

When hired at a new job selling electronics, you are given two pay options: Option A: Base salary of $14,000 a year with a commission of 10% of your sales Option B: Base salary of $19,000 a year with a commission of 4% of your sales. How much electronics would you need to sell for option A to produce a larger income?

A customer purchases $18.59 worth of items and pays using a twenty-dollar bill. What is the correct change? Choose the best answer. Group of answer choices 1-dollar bill, 1-quarter, 1-dime, 1 nickel, and 1-penny 1-dollar bill, 1-quarter, 1-dime, 2-nickels, and 1-penny 1-dollar bill, 1-quarter, 2-dimes, 1 nickel, and 1-penny 1-dollar bill, 1-dime,

3 V + + 18 + 5 = 3 23
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What is the probability of the following: (Show the fraction and Convert all to percentages) Drawing a heart or diamond from a deck of 52 cards? Rolling a die and getting a 2 or 3? Rolling a die and getting a 2 and 3? Rolling a die and not getting a 2 or 3? Drawing a king from a deck of 52 cards? Not drawing a face card from a deck of 52 cards?

Use the definition of the derivative to compute the derivative of the function()=8 f(x)=8xat an arbitrary point x. Evaluate the limit by using algebra to simplify the difference quotient (in first answer box) and then evaluating the limit (in the second answer box). f'(x) =lim h->0(f(x+h)-f(x)/h)=lim h->0 (__) = ___

Video Game Brothers is a popular video game. The goal of the game is to collect coins to get victory points. There are two kinds of coins: one red coin gives 1 victory point, while one green coin gives 5 victory point. No fractional coin can be collected. In addition, red coins do not require any time to collect and for each one collected, it

Which of the following representsin exponential form?

The ratio scale of measurement has the properties of a.only the ordinal scaleb.the rank scalec.the interval scaled.only the nominal scale

use Descartes rule to determine the possible number of positive and negative solutions. make a table of possible real/complex solutions. then graph to confirm which of those possibilitied\s is the actual combination

9) The measure of
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Practical significance of a null hypothesis rejection is important because Group of answer choices Any null hypothesis rejection should be factored into all related decisions Not all null hypothesis rejections will impact real world outcomes in a meaningful way A large enough sample size can cause most all null hypothesis claims to be rejected. B

1. You have a solid cube of dough. Consider the cross sections that are formed when you slice into the cube as described. Draw each slice and describe the resulting cross section. (a) A slice through the center, parallel to a side (b) A slice that cuts through the left top edge and the right bottom edge (c) A slice that cuts across a corner
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The ancient Greeks were very interested in sequences resulting from geometric shapes such as the following triangular numbers: 0 0 00 (1,3,6,...) 0o, 00, 000, ... Write a recurrence equation for the nth term in this sequence, guess a solution, and use induction to verify your solution
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Part A Write functions for each of Question 2 Question Create a function to represent the point ( x , y ) being reflected across the y-axis. following transformations of the point ( x , y ) using function notation. Use T to represent translation, R to represent rotation, and F to represent reflection. Question 1 Question Write a function to

Circled answer is incorrect \f
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1. The production supervisor of an assembly line for producing cheeses suspects that the weight of the bags produced is higher than the specification of 200 g. She would like to take a simple random sample of bags of cheeses produced by the assembly line and perform a statistic test to confirm that this is indeed the case. a. What would be the

a-1. What if you bought the September put with exercise price $135 instead? Would you exercise the put at a stock price of $135?a-2. What is the rate of return on your position? (Negative value should be indicated by a minus sign) G Refer to the stock option.. C FIGURE 2.10 Stock Opti... M Question 7 - Ch 2 Home... FIGURE 2.10 Stock options on
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The pair of polygons is similar. Find the value of X. 139 X - E A 40 X - 3 6 12 F D 40 * +1 B C Write a proporti Determine whether the pair of triangles is similar Explain your reaconing
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Step 2of 2 if you throw two heads in three tosses. mi " youwow exactly two heads in three tosses of a coin you win $35. If not. you pay me $25. smazou: If you pIayed this game 537 times how much would you expect to win or lose? Round your answer to two deamal places. Losses must ,7 he entered as negative
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Harmie used 733 KWh last month. Use the following relationship to calculate Harmie's electric bill that month. Round your answer to the nearest penny. Do not input the dollar symbol. Only input the number. Example input: 67.82 . If total monthly electricity usage is no more than 600 kWh: Total Monthly Electric Charges = $6.71 + $0.090982 x Number
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discrete math d) Determine whether each of these sets is finite, countably infinite or uncountable. For those that are infinite countable exhibit a 1-1 correspondence between the set of positive integers and that set. a) The integers greater than 10 b) The odd negative integers c) The real integers with absolute value less than 1,000,000 d) The
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Uh oh, looks like our Professional Golfer has hit a bad shot by some trees. It looks like they have to hit a shot over some very big trees. If the trees appear to be about 70 feet tall, and the golfer is about 273 feet away from the hole still, which club would you recommend they use? Group of answer choices 6 Iron 5 Iron 3 Iron

Divide and simplify. StartFraction 75 m squared n squared plus 10 m squared n minus 5 mn squared Over 25 m squared n squared EndFraction

Thefollowingtable shows the cost of assigning agentto task: T1T2T3T4T5A12638113736A23736254911A32136231512A44029444235A54644282714 Find the minimum cost assignment. To what tasks are Agents 4 and 5 assigned? This should be specified as a pair of numbers; for example, 1, 2 would mean that Agent 4 is assigned to Task 1 and that Agent 5 is assigned

X | p Binom(n, p), where n is known and p is unknown. (a) Compute the mean squared error (MSE) of the maximum likelihood estimator ^pMLE = X/n (b) Assume the prior distribution p Beta (, ). Compute the mean squared error (MSE) of the Bayes estimator with respect to the squared loss. (You don't need to derive the posterior distribution again if it

Five years ago, you deposited $3,287.17 in a bank account. One year ago, you deposited $2,000 in the same bank account. Assuming no other deposits and no withdrawals, what will be in the account 7 years from now? Assume an interest rate of 4%. round to the nearest dollar

Hello, I am struggling with a set of questions that I would be imensly gratefull for some assistance with in relation to the answers and workings to enable me to grasp the mathematics. The questions are - Question 3 - 20 marks This question is based on your work on MU123 up to and including Unit II. A Gini coefficient is a measure of a country's
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Which of these statements is true of kin selection? Group of answer choices Kin selection includes distant kin as well as close kin. The closer the kinship, the less it facilitates costly altruism. Kin selection explains all cases of altruism. Reciprocal altruism is mathematically expressed as rb > c. Inclusive fitness forms a general basis for

3.4.4 Test (TST): Teacher-Scored Unit Test Test Physics Honors Sem 1 Points Possible:50 Name: Ananya Kumar Date: In this test you will apply what you have learned in the unit. Please answer the questions below. Submit this to your teacher when you are done. Show all your work on this test. Question 1 (4 points) A man takes his dog for a walk. His

1. Given the triangle ADC, segment BD is a perpendicular bisector of segment AC. Point B is the median of side AC. Why would triangle ABD be similar to triangle CBD? O SAS O CPCTC AAS O SSSNaomi is throwing her best friend a birthday party. She wants to print out pictures to hang on string as decorations. HAPPY BIRTHDAY She goes to order photo
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Use the formula for continuous compounding to compute the balance in the account after1, 5, and 20 years.Also, find the APY for the account. A $ 9000 deposit in an account with an APR of 3 %. Balance year 1= Balance year 5= Balance year 20= APY= (Round to the nearest cent as needed)

Imagine that 86,999 penniless people live in Centerville. Bill Gates whose net worth is 87,000,000,000 moves to Centerville.Now the mean net worth in this town is______and the median net worth is______ C. Standard deviation O d. Mean Imagine that 86,999 penniless people live in Centerville. Bill Gates whose net worth is $87,000,000,000 moves to
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True or False? The filters of niche fields still ensure that you do not see long term bond funds. Group of answer choices True False

Please show work By-hand problem Explain (show) why Simpson's rule nds: a b g \" (a) + 4m + W2) + no) is exact for x) 2 1, x] 2 3:, at) 2 $2. This can be shown directly, but the simplest explanation will rely on how Simp- son's rule is constructed using an interpolating polynomial for f (at)
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(Recall that fog is the composition of functions f and g from Thursday's lecture (7/16)) (a) Prove that for any sets A1, A2, A3, if functions f1 : Al -> A2 and f2 : A2 - As are both one-to-one then f2 0 f1 : A1 -> A3 is one-to-one. (b) Use induction and the result from part (a) to prove the following claim: Claim:For all n > 2, for any sequence of
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9.[HW] To save for future development, a company makes a deposit into a fund that earns interest at 6.45% compounded semi-annually. If the balance after 8 years needs to be $800,000, how much must be deposited at the end of each year? please draw timeline as given below in example and also make calculations using Financial calculator. Thanks for
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Help me do this multiple choice question. (No process of how it is done is needed just answer is required) 1 point Given the division statement: 8x + 4x2 - 31 = (2x - 3)(4x2 + 8x + 12) +5 what is 4x~ + 8x + 12? Divisor O Remainder Dividend O Quotient 1 point Which of the following is the best list of possible test zeroes of f(x) = 5x* + 4x3 - 8x +
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In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Brad has scored 83, 95, and 76 on the first three. What range of scores on the fourth test will give Brad a C for the semester (an average between 70 and 79, inclusive)? Assume that all test scores have a non-negative value. Express

3-yr 0.051377 4-yr 0.050864 calculate the forward rate

can u help 15. [0/1 Points] DETAILS PREVIOUS ANSWERS BOYCEDIFFEQ10 2.3.501.XP. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The population of mosquitoes in a certain area increases at a rate proportional to the current population, and in the absence of other factors, the population doubles each week. There are 200,000 mosquitoes in the area
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Today, an antique car that originally cost $3,773 in 1955 is valued today at $69,500 if in excellent condition. This is 2 1/2 times as much as a car in a very nice condition - of you can find an owner willing to part with one for any price. What would be the value of the car in very nice condition?

3. Compress k (x) horizontally by a factor of = and reflect it across the y-axis y=_15(x-2)
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Perform the indicated operations. Then use a calculator to check your work. left parenthesis negative 2.1 right parenthesis squared left parenthesis 0.6 plus 0.4 right parenthesis Question content area bottom Part 1 left parenthesis negative 2.1 right parenthesis squared left parenthesis 0.6 plus 0.4 right parenthesisequals enter your response

1.The partially completed ANOVA table for a randomized block design is presented here: source df SS MS F treatment 2 17.44 Blocks 86.44 error 10 . total 17 118.44 a.How many blocks are involved in the design? b.How many observations are in each treatment total? c.How many observations are in each block total? d.Fill in the blanks in the ANOVA

. the arrangement of phospholipids in the plasma membrane . helps make and transport proteins. and lipids Whatl . stores and transports protein and lipid molecules .42. . helps the cell maintain its shape and holds cell organelles in place within the cytoplasm 5. layer that surrounds the plasma membrane of a plant cell 6. help organize the
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14. Higher Order Thinking Describe a composition of rigid motions that maps DE to JK, EF to KL, and ZD to 2/. Why does this composition show that there is no angle-side-side congruence criterion? K
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7. The coordinates of a triangle are shown in the My Calculations Cartesian Plane below. Find the length of the median of AABC drawn from vertex B. B (80, 100) C (160, 50) M A (20, 30) 8. Find the equation of a perpendicular bisector My Calculations that bisects line segment AG below. . G (20, 90) A (10, 30) - Perpendicular Bisector 9. Prove that
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Identify the type of sampling used; systematic, convenience, strati ed, or cluster, or none of them. Then comment on whether the sample is random or not. At a border crossing, every 15th car is searched. Stratified Cluster systematic convenience none random

I need help with part e! Sorry that the pictures are out of order. I will not use your work as my own, I just need help figuring out the answer. (d) What proportion of people who correctly solved the problem had the electrical stimulation? Round your answer to two decimal places. 0.75 the absolute tolerance is +;'.1 (e) Give values for $5, the
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Please help with all questions: When would a researcher collect data on all the subjects in the population as opposed to working with only a random sample of subjects? Compare advantages and disadvantages of sampling the subjects. How can research subject samples be chosen so that bias is minimized? Why are voluntary responses and convenience
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Given the following sample of information, test the hypothesis that the treatment means are equal at the 0.01 significance level: \f
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