S
  1. study help
  2. subject categories
  3. sciences
  4. mathematics
  5. march 2021
  6. 22

Mathematics Questions and Answers March 22, 2021

Expert-verified solutions to help you succeed

Please help 2. (1 point) Find the limit of the function f(x.y) sin(3/x2 + 12 3vx2 + 32 as (x,y) -+ (0,0). Assume that polynomials, exponentials, log- arithmic, and trigonometric functions are continuous. [Hint: lim,-+0 sing = 1.] lim sin (3vrty (x,y)-(0,0) 3v/xzty2 (Enter DNE if the limit does not exist.)
image text in transcribed

Differentiate \f
image text in transcribed

ust the empiracle rule , The speed od sample of vehicles along a stretch of a highway is 70 miles per hour with a standard deviation of 3 miles per hour . estimate the percent of vehicles whose speeds are between 61 miles per hour and 79 miles per hour. (Assume thehdata set has a bell shaped distribution

Where is the revenue burden placed in Miami-Dade County

Question 1 calculate the forecast for the following week(I.e. week 11) using a 3-period weighted moving average with weights as follows: W1=0.5, W2=0.4, W3=0.1Question 2Calculate forecast for the following period(week 11) using exponential smoothing (using alpha =0.25) A. 292B. 294C. 299D. None of the above Question 3The forecast for the following
image text in transcribed

The question is asking me to use the at least once rule to find the probability of the following events Getting at least one tail when tossing live lair coins 2. Getting at least one 50-year Ilood in the next ten years 3. Rolling at least one 6 in three rolls of a lair die

20.) determine the scalar equation for the plane that passes through the point (2,0,-1) and is perpendicular to the line of intersection of the planes 2x+y-z+5=0 and x+y+2z+7=0 21.)Explain why there are many different vector and parametric equations of a line

Modify the binary search algorithm to take the upper of the two middle array elements in case the input array has even length. In other words, in the binary search algorithm, replace mid : = bot + top with mid := [ bot + top N N Trace the action of the modified binary search algorithm on the variables index, bot, top, mid, and the given values of
image text in transcribed

Given plans to sample 100 elements from a large heterogeneous population, which approach is likely to yield estimates with the most narrow confidence intervals Select one: a.Simple random sampling with replacement b.Stratified random sampling with two strata where their means are greatly different c.SRS sampling and regression estimation using an

Event A is that the top card in a deck is NOT a Jack.Event B is that the top card in a deck is NOT a Queen. Are these events mutually exclusive?Explain

The maximum amount available of crude A and B are 200 units and 150 units respectively. Market requirements show that at least 100 units of gasoline X and 80 units of gasoline Y must be produced. The profit per production run from process 1 and process 2 are Rs. 300 and Rs. 400 respectively. Formulate this problem as a linear programming model.

Using EXCEL, not SPSS please: (show formulas) The research firm LL Research collected data from 200 client businesses. They want to determine how the businesses compare among four variables: 2015 Profit in millions of dollars 2016 Profit in millions of dollars 2015-2016 Two-Year Change in Daily Average Customer Visits Two-Year Average Number of

(5 marks) Two players (player A and player B) are playing a game against each other repeatedly until one players wins all available money. When a player wins a game they take $1 from the other player. Suppose player A starts with $4 and player B starts with $2. If player A wins a game with probability 1/4 and player B wins a game with a

If f(x) = sec (x) tan(x), then a particular anti-derivative of f(x), is -csc (x) + 1. true or false

The given equation is either linear or equivalent to a linear equation. Solve the equation. 7(1 x) = 8(1 + 2x) + 2

A Problem 6. Let A be an m x n matrix with linearly independent columns, and let I) E Rm. Suppose A : QR is the QRfactorization of A. Show that the system of linear equations A" 2 b has a unique least squares solution a?\" = R'lQTb
image text in transcribed

How many mL do you need to add to 3.5 L to make 4 L? How many L is 4 L

Question 4 (15 pts): Daily demand for ground coffee at a local Scooter store is normally distributed with a mean of 250 lbs and a standard deviation of 100 lbs. The replenishment lead time from the coffee supplier is 4 days. Scooter is targeting a SL of 95% and uses a periodic review policy under which it reorders ground coffee every 10 days. (a)

If A and B are independent events and P(A)=0.25 and P(B)=0.333, what is the probability? Select one. Question 3 options: 0.75075 1.33200 -0.0830 0.08325

Researchers at a weight loss clinic are conducting an experiment to determine whether weighing oneself daily does in fact lead to greater weight loss while on a diet, as is commonly assumed. They plan to compare the percentage of total body weight lost after twelve weeks on the clinic's diet plan for two groups of people, one weighing themselves
image text in transcribed

9. En el mbito de la seguridad en redes de ordenadores, un cortafuegos

Suppose there is a random sample of600 observations, divided into four groups.The table below summarizes the count of observations that were seen in each group. Group 1 Group 2 Group 3 Group 4\\ WE are interested in testing the null hypothesis By : }1 = = = }} = PQ - U.ES . against the alternative hypothesis HA : At least one proportion is
image text in transcribed

The Matrix below represents Relation R C A x B for the following sets A = {a, b, c, d} B = {1, 2, 3, 4} 1 2 3 4 a 1 0 0 1 b 01 1 1 C 1 0 0 1 0 1 0 Determine if the following statements are True or False aR2 A Choose an answer dR3 B Choose an answer bR4 C Choose an answer CR2 D Choose an answer Choose an answer . 3 points
image text in transcribed

If a and b are non zero real numbers ... find A^2 ab b2 If a and b are nonzero real numbers and A: . Find A2. 2 _ a ab A2=|:| (Simplify your answer.)
image text in transcribed

A man is standing on the top of a 15 foot ladder , which is leaning against a wall. Some scientific minded joker comes up and starts to pull the bottom of the ladder away at a steady rate of 6 ft /min. At what rate is the man on the ladder descending if he remains standing on the top rung when the bottom of the ladder is 9ft. from the wall?

Is this correct? a. Analyze the relationship between BMI category and diastolic blood pressure. [3 points] Present the statistical output (from StatCrunch) summarizing the relationship between diastolic blood pressure of participants by BMI category. This data has been reached using the five number summary produced by StatCrunch to identify the
image text in transcribedimage text in transcribed

Janine is an ambidextrous volleyball player. She is practicing "short serves" in volleyball because her team has an upcoming match against an opponent who does not pass short serves very well. Janine must land a majority of her "short serves" in bounds or her coach will not let her use her short serve in the upcoming match. Janine serves 30 short

\f
image text in transcribed

Problem #7: Find a formula for the function f whose graph is shown below. 2.5 2 1.5 1 0/5 1-12 1 2 0.5 X -X x = -1 -X x 1 x21 x x-1 X xs-1 (G) f(xX) = +1 -1 {x = 1 (H) f(x) = x+1 -1
image text in transcribed

A research study investigated differences between male and female students. Based on the study results, we can assume the population mean and standard deviation for the GPA of male students are = 3.5 and = 0.5. Suppose a random sample of 100 male students is selected and the GPA for each student is calculated. What is x x? rev:

A researcher collects data from many thousands of participants to test the relationship between physical activity and happiness, with an alpha criterion for statistical significance set at p

My question is below. Evaluate the definite integral exactly [as in In (3x)], using the Fundamental Theorem, and numerically [as in In (37) ~ 2.243 ]. Enclose arguments of functions in parentheses. For example, sin (2x). X 3 sin x dx = O Round your answer to three decimal places. 3 sin x dx = 0.878 O
image text in transcribed

10Mail - Cl G Google Attachn W MAT 35 Search| Project t S Project Home D2L Online S D2L 3-3 MAT Zy Sect X D2L Project S Project D2L Project Project *MAT35( + X -> C a learn.zybooks.com/zybook/MAT-350-H6589-OL-TRAD-UG.23EW6/chapter/3/section/10 1 8 Guest . . . =zyBooks My library > MAT 350: Linear Algebra home > 3.10: MATLAB: Determinants zyBooks
image text in transcribed

This is the last part of the question! nsider the distribution of the annual rainfall in 100 cities selected randomly throughout the United States. Complete parts (a) ough (d) below. maximum amount. D. The distribution would probably be left-skewed because there is a clear minimum amount of rainfall but no obvious maximum amount. What variation
image text in transcribed

When a 3 ft to 5 ft metal shore is closed, what is the maximum vertical load it can withstand? 20,000 lbs 12,000 lbs 6,000 lbs 5,000 lbs

he rhizome images remind us that learning Question 24 options: 1) Is linear and happens in a step-by-step way 2) Is not predictable 3) Has a distinct beginning and an end 4) Can create something new and surprising

find the critical value and rejection region for the type of chi-square test with sample size n and level of significance a. right-tailed test, n=18, a=0.01

Simplify the given polynomial by combining like terms. 21 x squared minus 6 x squared minus y21x26x2y

A researcher reports the results of a single-sample t- test as t (28) = 1.80. The degrees of freedom for this t -test are (answer here) , which means there were (answer here) total participants in the researcher's sample. Based on the information above and knowing it is a two-tailed test, the critical t value is: (answer here)

how to Translate: , (he/she/it has given) ....

solving in elementary school is best understood as: Group of answer choices fun activities such as puzzles and games. the central focus of mathematics teaching and learning. challenging problems for the mathematically talented students. working word problems similar to the rote practice problems in textbooks

The following information was collected from staff members at Best Buy, with respect to the number of training sessions they attended during the last month and number of entry errors they made in the inventory system, last month. Emp 1 Emp 2 Emp 3 Emp 4 Emp 5 Number of training sessions attended 7 6 9 3 5 Number of errors made in system 3 5 4 7 5

Please help me to solve the questions Last First There are 3 questions in the quiz. Show work to get full mark. Question # 1: (1 Mark) In the figure, triangle RSP is congruent to triangle TSP. If LR = 440, and LRSP = 28, what is the measure of angle LTPS? Select the best answer: ARSP = 1 TSP confirm 108+ 440 +28 a) 4TPS = 44 LR -
image text in transcribed

The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample oftensyringes taken from the batch. Suppose the batch contains5%defectivesyringes. (b)Find (in terms of the number of syringes). (Enter a number. Enter your answer to two decimal places.) =syringes What

solve the question the same way as shown in the example \fy = tasin k(x -d) +c Ex. 3 : By determining the axis of the curve, amplitude, period and phase shift, construct the equation of each function shown below: a) Write the equation in terms of sine. a = max- min = 2 - ( - 2 ) - 2 2 2 2 V a C = max + min = 2+ (-2) = 0 y= Zin 3( x - 3TT) 2 aoc
image text in transcribedimage text in transcribed

I need help on my homework questions. I am confuse. About 7% of the population of a large country is allergic to pollen. If two people are randomly selected, what is the probability both are allergic to pollen? What is the probability at least one is allergic to pollen? (a) The probability that bolh will be allergic to pollen is (Round to four
image text in transcribedimage text in transcribedimage text in transcribed

Answer in interval notation. Find the domain of the following rational function 2 - 3x g(x) (x -9)(x +5) Select the correct choice below and, if necessary, fill in the answer box to complete your choice O A. The domain of g(x) is restricted to (Type your answer in interval notation O B. The domain of g(x) has no restrictions
image text in transcribed

Please sketch by hand. The integral HR ' /9 y2 dA, where R : [0, 4] X [0, 2], represents the volume of a solid. Sketch the solid
image text in transcribed

a manager at your local VA hospital records the following table regarding patients seen on a given day with respect to blood type A-560 B-770 AB-1253 O-2476 TOTAL=5059 What is the probability of a patient having blood A on this given day?

What is the z-score for 19 weeks for this distribution?N(22,2) (x-mean)/standard deviation. 1.50 -1.50 0.0668 0.9332

Solve the following problem in Excel using a finance function. Describe all of the arguments and present it in table format: What is the effective annual rate of 8% simple nominal annual rate when compounded monthly

Find the daily rate if the annual interest rate is 20%. a 0.05479452 b 0.0005479452 c 0.384615 d 0.00384615

Locate the centroid of the shape. Use point C as (0,0), the origin of your coordinate system. Locate the centroid of the shape. Use point C as (0,0), the origin of your coordinate system. 29 in
image text in transcribed

Select the correct words from the drop down list to complete the paragraph about Roco's house. Roco alquila una casa cerca de la plaza. Su select answer es Calle Bolvar N24-25. La casa de Roco es pequea pero bonita. En la select answer hay una sala, un comedor y una cocina. Tambin hay un jardn con muchas select answer . Hay una cama en su select

por Dios por fin por todas partes por supuesto Match each of the options above to the items below. no me digas No answer finalmente No answer claro que s No answer en muchos lugares

The given equation is either linear or equivalent to a linear equation. Solve the equation. (If there is no solution, enter NO SOLUTION.) 3 x + 1 1 2 = 1 5x + 5

__ I If the measure of AA is 55 more than four times the measure of AB. and the sum of the measures of the two angles is 180, what is the measure of each angle? MM) = m(AB) = L'Jll
image text in transcribed

Question 26 I would like to know the best sampling method that was used and explain why. In a population of 6 million people, a sample of 500,000 people was obtained and each individual was equally represented.

You have been asked to order textbooks for your class. You need to order 29 textbooks that cost $31 each. How can I use the polynomial identity (a + b)(a b) = a 2 b 2 and mental math to find the total cost of the textbooks? How using polynomials can be utilized in other areas (be specific) of my life? I am currently seeking to become a

Question 1 A Type I error is defined as ________. Group of answer choices a.rejecting a true null hypothesis b. failing to reject a false null hypothesis c. rejecting a false null hypothesis d. failing to reject a true null hypothesis Question 2 Based on the IQ scores for 19 of her children, Michelle Duggar performs a hypothesis test to see if her

\f
image text in transcribed

In a test of agender-selection technique, results consisted of 240 baby girls and 219 baby boys. Based on thisresult, what is the probability of a girl born to a couple using thistechnique? Does it appear that the technique is effective in increasing the likelihood that a baby will be agirl?

Statistics Question: x = 1355 mean = 910 standard deviation = 216 z-score = 2.060 What number is needed on the high end to qualify as an outlier? Please explain calculation and answer. Thank you in advance.

Evaluatetheexpression10a+3b-5a+4b+1a+5b,fora=5,b=2

Give an example of how you think people in each of the following occupations think computationally: A. mathematician B. Computer Scientist

Birth weight of infants at a local hospital have a Normal distribution with a mean of 110 oz and a standarddeviation of 15 oz. What is the proportion of infants with birth weights between 125 oz and 140 oz? What is theproportionof infants with birth weights between 88 oz and 98 oz?

As referenced in the CHOOSING A RED BORDEAUX section: What factors separate a $30 bottle from a $300 bottle of Bordeaux wine? Select one: a. The vintage b. How long the wine aged in wood c. The yield of the vine d. Where the grapes grew e. The age of the vine f. All of the above

Task 2 Comparing Simple, Compound and Continuously Compounding Interest In this task, you will calculate the balance of an account using simple, compound, and continuously compounding interest. Question 1 Brianna wants to save the $435 she earned from being a lifeguard over the summer. She's trying to decide which type of savings account would be
image text in transcribed

Aldo is riding his bike. The distance he travels varies directly with the number of revolutions (turns) his wheels make. See the graph below. 35 30- Distance 25 traveled 20 ( feet) 10 14 Number of revolutions (a) How far does Aldo travel per revolution? [ feet X (b) What is the slope of the graph
image text in transcribed

Every course at Grossmont has identified SLO's (Student Learning Outcomes). They include key points that each student, by the end of the course, should understand. For the Final Exam, please answer each of the questions below. They are based on each individual SLO. In order to assess your understanding of these concepts, please provide thorough

The population in millions of arctic flounder (a type of fish) in the Atlantic Ocean is modeled by the function P(t)=11 t + 120/0.9 t^2 + 1,wheretis measured in years. What is the initial flounder population ??? million. What isP(9), rounded to 2 decimal places? Units should be consistent with those defined in the initial problem.P(9)= ??? In

If the variance is 3.6 grams, what is the standard deviation? A.0.6 B.1.897 C.6.0 D.12.96

The Euclidean (straight-line) distance between the points (1, 2) and (7, 10) is 20. Group startsTrue or FalseTrue, unselectedFalse, unselected

Question41 A bag contains 12 balls. 4 are blue, 7 are RED andthe remaining one is white. If a student is asked to picked 2 balls with replacement, what is the probability that the student will pick a white ball anda red ball or a white ball and a blueball

6) Multiple choice: Answer each sub-question by stating whether the term indicated would increase, decrease, stay the same, or not enough info to say. (Note: \"increase\" and \"decrease\" refer to the absolute value.) a) b) C} d) e) f) g) In the binomial distribution, as N decreases, what happens to the value of the most likely outcome when P =
image text in transcribed

Which sentence correctly states the counting principle? O If there are n ways to do something and m ways to do something else, then there are n - m ways to do both. If there are n ways to do something and m ways to do something else, then there are n = m ways to do both. O If there are n ways to do something and m ways to do something else, then

True or false, 4 1/2 =2 written as a logarithm is log 42 = 1/2

Please give the answers and working out for Question 7 to 12 of the 2006 UP paper 19:02 2006-stk-113-exam...xam-for-stats.pdf - Read-only z @ L 2 QUESTION 7: Upon completion of their course a sample of 60 students are asked to fill out a course evaluation questionnaire. The questions have a five-category response scale, coded as follows: 1=poor,
image text in transcribedimage text in transcribedimage text in transcribed

Please help graph the rational function Graph the rational function. f ( x ) = x - 6x - 10 2x -4 Start by drawing the asymptotes. Then plot two points on each piece of the graph. Finally, click on the graph-a-function button. fx TH X 5 -10 -6. 8 10
image text in transcribed

Kuldip's factory manufactures toys that sell for $29.95 each. The variable cost per toy is $11, and the total fixed costs for the month are $45,000. Calculate the unit contribution margin
image text in transcribed

How do I write the answer in equation form? \f
image text in transcribed

Target has decided to put an older model LED television on clearance sale and continue reducing the price by $100 each week until all the sets are sold. The original price is $1500. A. Is this an example of a linear or exponential model? Question Blank 1 of 2 linear model B. Choose the model that fits the information

Yo llego a la escuela a las ocho de la maana, siempre llevo mi mochila con los tiles. Tomo el bus desde mi casa hasta la escuela. Hablo un poco con mi amiga Lupe y despus voy a mi primera clase - la clase de espaol. La clase es fcil y la profesora es muy interesante. Despus, tengo mis clases de matemticas, historia y literatura. Me gustan todas

A snack food manufacturer estimates that the variance of the number of grams of carbohydrates in servings of its tortilla chips is 1.12 1.12. A dietician is asked to test this claim and finds that a random sample of 16 16 servings has a variance of 1.09 1.09. At alpha equals 0.01 =0.01, is there enough evidence to reject themanufacturer's claim?

Write the ration7 1/9 to 6 using fractional notation. Do not simplify

Indicate in the following examples whether the random variable X is discrete or continuous. Explain your reasoning. Note that a count is discrete and measures such as speed, weight, height, blood pressure readings etc are continuous. "Number of ___ " "how many" these suggest counts so discrete X is the number of petals on a randomly chosen daisy .

What is meant by the "parallel process" in legislation? Group of answer choices when 2 bills are in the same committee When the process is the same When two state pass a similar bill A similar bill is introduced in both the senate and the assembly/house

Analyze the reliability of the following electrical system, where the MTBF of the components are as follows: Alternator: MTBF = 2,500 hrs Battery: MTBF = 10,000 hrs Alternator control unit: MTBF = 10,000 hrs What is the MTBF (in hours) of the system as a whole? Assume that the failure rate of each component is independent of the others. Enter your

Mohamed purchased a car for $23 000. It depreciates by 10% of its current value every year. How much will the car be worth 5 years after it is purchased?

Is the p-value reported by the author supported by these results? Explain. Is the 95% CI for the percentage point difference reported by the researchers supported by these results and interpret the relative risk? \f
image text in transcribed

a. -3 C. 3 b. d. 6
image text in transcribed

Determine the unit vector u in the direction of the vector u shown in the figure below: 900 Express your answer exactly. Important: Vectors must be entered using square brackets to enter the vector (-2, 3) you would type [-2,3]
image text in transcribed

An investor is considering the purchase of a small office building. The NO/ is expected to be the following: Year 1, $238,000; Year 2, $248,000; Year 3, $258,000; Year 4, $268,000; Year 5, $278,000. The property will be sold at the end of year 5 and the investor believes that the property value should have appreciated at a rate of 3 percent per
image text in transcribed

5. Find the ordinary differential equation satisfied by the family of plane curves given by I= pay +byte where a, b and care arbitrary constants. A. y=2- 3 B. 7" = 3 2 C. y" = 2 D. y" = 3 2 E. "= 2 F. y"= 3 2 G. y" = 3 +
image text in transcribed

Question 39 Describe simple linear regression and multiple linear regressions and give illustrations. Please help and make it easier to understand.

dicule las TWerzas en las olrecciones vertical V horizontal sobre el bloque de la figura. La corriente de fluido es un chorro de agua de 45 m de diametro a 15 9C y la velocidad de 8 m/s. a velocidad del agua al abandonar el bloque an ien es de 8 m/s
image text in transcribed

For each ordered pair, determine whether it is a solution to the system of equati y=7x-4 -14x+ 2y=-8 Is it a solution? X (x , V) Yes No (-1, -11) O O (0, 4) (-2, 5) O (3, 17) O
image text in transcribed

3.08 Practice POSSIBLE POINTS: Elena collects data to investigate the relationship between the number of bananas she buys at the store, x, and the total cost of the bananas, y. Which value for the correlation coefficient is most likely to match a line of best fit of the form y= mx + b for this situation? 0 0.9 O -0.9 0 0.4 0 -0.4
image text in transcribed

1 Two bodies, masses m1 and m2, are at distance r from each other and attract each other with force F. Find the gravitational force if the distance is doubled. 2F F/2 F/4 4F 2 points QUESTION 2 The weight of a 0.50 kg object on the surface of Planet X is 20 N. If the radius of the planet is 4 x 106 m, what is its mass? 3.4 x 1019 kg 2.6 x 1022 kg

Chances are 50-50 that a newborn baby will be a girl. For families with five children, what is the probability that all the children are girls? A.0.900 B.0.031 C.0.001 D.0.250

Showing 500 - 600 of 1503
  • 6 / 16