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Mathematics Questions and Answers October 13, 2021

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A cupcake store manager believes that half of the cupcakes sold are chocolate and that the other half is equally divided between vanilla and cherry. If the manager's belief is correct and 300 cupcakes are sold, how many would you expect to be cherry cupcakes? Select one: a.300 b.75 c.100 d.200 e.150

2. The country wise spread of COVID-19 depends upon various factors. Consider India as a representative country. We want to understand how dierent is India with the world average. [download data from Our World In Data's Coronavirus data source, which is updated daily and is freely available.] (a) First, calculate the average daily conrmed COVID-19

The average one-bedroom rent per month in Lincoln, Nebraska is $500 with a standard deviation of $75. Assuming that such rentsare normally distributed, what is the probability that a one-bedroom isless than $410 per month?

1.Find the particular solution. y' = e x 6 ; y (0) =9 Find the general solution to the given differential equation. (Use C for the constant of integration.) -dx = x 5 y dy

Pastas R Us, Inc. is a fast-casual restaurant chain specializing in noodle-based dishes, soups, and salads. Since its inception, the business development team has favored opening new restaurants in areas (within a 3-mile radius) that satisfy the following demographic conditions: Median age between 25 - 45 years old Household median income above

L) This criterion is linked to a leaming outcome 'Impact of Digital Voting System on Future Voters: Opportunities and Challenges' research Design and Theory Phis areawill be Which "Impact of Digital Voting System on Future Voters: used by the 15 Opportunities and Challenges' research design best suits your 25523300 10 leave = research? The theory
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9*. Determine all positive integers n for which (n 1)\"1 n2 + 2019(n 1) (n - 2)2 is an integer. (Hint: If k is an integer, than k + m is also an integer for a. given integer m.)
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Please solve it with steps According to a government study among adults in 25-34 age group, the mean amount spent per year on reading and entertainment is $1994. Assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $450. I. 1What percent of adults spend more than $2300 per year on reading
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abes carpet is 160 square feet at $878.40. bobs carpet is 85 square feet at $466.65. If cost is proportional to area what is the cost of 118 square feet of carpet?

In a survey, 26 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $45 and standard deviation of $5. Construct a confidence interval at a 90% confidence level. Give your answers to one decimal place. ________ ______________ Interpret your confidence interval in the context

Each item is credited 5 points. 1. Find the amount due on a loan of P8,500.00 at 12.5% simple interest at the end of 4 years. 2. If a person borrowed P88,800 at a simple interest rate of 10 %% for 16 months, how much interest should he pay? 3. How much should you invest now at 8% compound semi-annually to have P8,500.00 in 2.5 years? 4. Which
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What is the solution system of equations -5=x-3y 11=3x+7y

solve this one ASAP Let A and I be sets within the same universal set U. Prove that A U B = An B by giving a containment proof (that is, prove that the left side is a subset of the right side and that the right side is a subset of the left side). Ineg Wee wedge A D in, \ otlin overline(A) A cup cap
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statistics and probability Question 6 of 10 0.2 Points A is a categorical variable you convert to a numerical variable by setting one category equal to 1 and the others to 0. Question 7 of 10 0.2 Points An is when the slope of one independent variable depends on the value of another independent variable. Question 8 of 10 0.2 Points is a problem
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Twin Lakes Schools YouTube T Dashboard | Tinker. Mp Drift Boss | Math Pl. Savas Rea Personal Math Trainer Lesson 3.6 - Homework - Homework 2 3 4 5 6 7 8 9 Mike hiked to a lake in 4.5 hours at an average rate of 3= miles per hour. Pedro hiked the same distance at UIIN a rate of 3- miles per hour. How long did it take Pedro to reach the lake? Round
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Please break it down with explanation for me . Thanks! f ( x ) = x 2 The slope from (3, f(3)) to (3 +x, f(3+x)) is +x.? The slope at x = 3 is? The slope from (B, f(B)) to (B +x, f(B+x)) is +x.? The slope at x = B is?

There are 4/5 as many green beads as red beads and 6 more red beads than green beads. Draw a model to find the number of red and green beads.

Let a and b belong to a ring R and let m be an integer. Prove that m * (ab) = (m * a)b = a(m * b). Please provide a thorough explanation.

Considera una variable aleatoria de Poisson con=3.5. Usa la frmula de Poisson para calcular las siguientes probabilidades: a)P(0) (3 puntos) b)P(2) (3 puntos) c)P(1) (3 puntos) Consider a Poisson random variable with = 3.5. Use the Poisson formula to calculate the following probabilities: a) P (0) (3 points) b) P (2) (3 points) c) P (1) (3 points)

the average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: 5 4 5 4 4 3 6 4 3 3 5 6 3 3 2 7 4 5 2 2 2 3 52 At a 0.05 does the average family size differ from the national average?

The contingency table shows how a random sample of college freshmen graded the leaders of three types of institutions. At alpha equals 0.01, can you conclude that the grades are related to the institution? Complete parts (a) through (d). Institution A B C D/F Military 24 45 21 24 Religious 15 48 24 17 Media / Press 14 22 32 23 Determine the

.1.Given two differentiable functions j = j(x) and k = k(x) . By the chain rule, we know ( j k )' (x) = j' (k(x) ) k' (x) Notice that the right-hand side of this expression is in terms of only j , k , and x (no composition circles ' ' ) (a)Consider three differentiable functions, h = h(x) , j = j(x), and k = k(x) . Write an expression for ( h j k

The weights (in pounds) of eight vehicles and the variabilities of their braking distances (in feet) when stopping on a wet surface are shown in the table. At alphaequals0.05, is there enough evidence to conclude that there is a significant linear correlation between vehicle weight and variability in braking distance on a wet surface? Weight, x

PROBLEM #2 STI Company uses a job order cost system for its manufacturing activities. During the month of June 2020, the following transaction data were accumulated: a, Job in process, June 1; Job 40 P 20,000 Job 41 60,000 b. Raw material purchased, P720,000 c. Raw materials and supplies requisitioned from the stockroom Job 40 P 100,000 Job 41
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In 2008, Marianna paid $14,500 for a used 2005 van. She has been tracking the selling price of the van as time has passed to decide how long to keep the van before replacing it. The data she has collected is shown in the following table: Age Question 1 (2 points) (in 3 4 5 7 years) Selling Price 14,500 11,600 8,700 6,800 4,300 3,500 (9 Determine
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One reason why serpentine lines are better is because they eliminate the choice of where to go and second-guessing about the best line to choose

7. A linear transformation 7: I, - V, maps the basis vectors as follows: T() - (0, 0), T() - (1, 1), T(k) - (1, -1). (a) Compute 7(47 -j + *) and determine the nullity and rank of T. (b) Determine the matrix of T. (c) Use the basis (i, j, k) in I, and the basis (w, , w,) in V,, where w, - (1, 1), w. = (1, 2). Determine the matrix of 7 relative to
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Adger Corporation is a service company that measures its output based on the number of customers served. The company provided the following fixed and variable cost estimates that it uses for budgeting purposes and the actual results for May as shown below: Fixed Element per Month Variable Element per Customer Served Actual Total for May Revenue

3. Eduardo finished 3 of his homework. What decimal represents the amount of homework Eduardo has left to complete? SHOW ALL WORK A 0.6 C 0.23 B 0.3 D 0.3
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In an instant lottery, your chance of winning is 0.1. If you play the lottery 100 times and outcomes are independent, the probability that you win at least 15 percent of the time is a) 0.073 b) 0.5 c) 0.15 d) 0.0478 e) 0.9213

Given thatP(A or B)equals =one fourth 14, P(A)equals (1/4) =one sixth 16, andP(A and B)equals (1/6) =one eighth 18, findP(B). (1/8)

why would you expand the research question to include additional variables and contexts

can you please help me with these step by step in 20 minute please if you can Q1 (5 points) A small business owner calculates that the per-unit cost C of producing x hundreds of doll houses is modelled by the function x2 C)=1-> _ (%) 2x3 + 27 where C is in hundreds of dollars. How many doll houses does the company need to produce to minimize the
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= Knowle age Check Question 13 Use the given information to prove that A DBA = ADCA. D Given: ADBA and ADCA are right triangles Send To Proof AB = AC Send To Proof B Prove: ADBA = ADCA Send To Proof Statement Reason + 1 Reason? = DO T Validate A mL O is a right a bisects is the L bisecto
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Use the factorization A = PDP 'to compute A", where k represents an arbitrary positive integer. -3
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Kindly correctly and handwritten Find a 3*3 symmetric matrox A so tht the characteristic polynomial of A is P(x) = x^2(3-x) and the null space of A is {k : x1+x2-2x^3=0, k C}
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pick any algebra problem for the class to solve. This problem can come from ALEKS or another source. Solve the first step of the problem. Your classmates and I will finish the problem for you by replying to your post.

1.

Los turistas en esta excursin pueden... Escoja: broncearse. Escoja: hacer submarinismo. Escoja: escalar unas montaas muy altas. Escoja: comprar objetos de plata. Escoja: nadar en dos playas, por lo menos. Escoja: ver las ruinas de Machu Picchu. Escoja: visitar un museo antropolgico. Escoja: visitar ruinas mayas

2. Draw the ordering diagram for the relation "divides" on the divisors of 40 = 23 - 5
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MCV4U - Unit 1: Derivative Rules Complete the Reference Declaration section below. If you used any references beyond the course text and lectures (such as other texts, discussions with colleagues or online resources), indicate this information in the space below. If you did not use any aids state this in the space provided. Declared references
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0 Question 42 8 0/2 pts '0 3 8 99 (D Details Run 3 Linear Regression Analysis on the data table to the right. Use that information to answer the following questions. Write the Linear Equation that models this data: E Use this equation to predict y when 3 = 39,7. Enter the prediction as an equation in the form y = . :l Question Help: [EVideo 1 a
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Plzz solve..Thank u b) A random process has the following correlation matrix. 1.0 0.3 0.09 0.0027 0.3 1.0 0.3 0.09 0.09 0.3 1.0 0.3 0.0027 0.09 0.3 1 Determine the pure prediction Wiener filter. Also determine the power spectrum of the Wiener filter. Are the results what is expected
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Using the fact that is irrational, show that + 3 is also irrational in detailed written steps.

About 400,000 people live in a region with an 8-mile radius. Find the population density in people per square mile. Round to the nearest hundredth. Population density 109 people per square mile
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For what formula can I use to calculate the average cost? The management of ThermoMaster Company, whose Mexican subsidiary manufactures an indoor-outdoor thermometer, has estimated that the total weekly cost (in dollars) for producing x thermometers is represented by the following function. C(X) : 5500 + 6X (a) Find t e average cost function E. Em
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13. The resting metabolic rate, R ml of oxygen consumed per hour, of a particular species of mammal is modelled by the formula, R = aMb where M grams is the mass of the mammal a and b are constants a) Show that this relationship can be written in the form log1o R = b logio M + logio a 10g10 R 4 (1.8, 1.9) (0.7, 1.2) O 10g10 M Figure 3 ( 2 ) A
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5. Choose two points that are a solution to the inequality graphed above. a. (5, 0) b. (0, 5 ) C. (-2, 6) d. (6, -2) e. (0, 0) 6. A hairstylist charges $15 for an adult haircut and $9 for a child haircut. She wants to earn at least $360 dollars and cut a maximum of 30 haircuts this week. The graphs represent the hairstylist's constraints. AD
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please solve the attached a). Prove that is a function f is harmonic =0, then dx - of dy = 0. ax 2 oy dy Ox b). Using Green's Theorem, evaluate the line integral ( e /2 -y dx+ e /2 +y dy where C= C, +C, is the boundary of the region R that is inside the circle x =5cos0, y=5sin@ and outside the eclipse x =2cos 0, y = sin 0. c). Find the surface
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Regard y as the independent variable and x as the dependent variable and use implicit differentiation to find dx / dy . x 4 y 2 x 3 y +3 xy 3 = 0

need help solving plz. In 2000, the population of a town was 46,020, By 2002 the population had increased to 52,070. Assuming that the towns population is increasing linearly answer the following questions 10. What is the population of the town by 20067 10 1 1. What year will the towns population reach 75,0007
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A small monster collector has captured thirty-one Anachronism-type small monsters. Each Anachronism-type small monster has a 27% chance of being a Phlogiston-subtype and a 47% chance of being an Aether-subtype; it cannot be both. a- What is the probability that exactly seven of the captured small monsters are Phlogiston-subtypes? b- What is the

(Or foo = FEXTH for PEX= 2. , good ~ Unit for = = 70. so . for is always thereas maxx fix) = 2. ( 2+ 1) = 5 90 ~ Urif(1 2 ) there fore Want M 1 M Z FOX aut (b ) maxx for ) = s when azz go) ~ unit 10, 10 ) = - IT - 0 Mg ( 2 ) 2 fly M M Z 2. Let f (2:) and 9(a) be the target and trial distributions, respectively, in the rejection sampling method.
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Find the work done by the force fieldF(x,y,z)=7xi+7yj+2k F(x,y,z)=7xi+7yj+2kon a particle that moves along the helixr(t)=1cos(t)i+1sin(t)j+2tk,0t2 r(t)=1cos(t)i+1sin(t)j+2tk,0t2.

I continue to brake my head with this assignment to the point that my professor says I keep getting this wrong. I got a 10/50 last time I tried this and I truly don't know what I Am doing wrong. Can someone please help me understand this? She wants this in an excel document which I get that because it's easier to write formula and do graphs there
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The "true" mean of a random variable would not involve the relative frequency terms, but instead, the probability of outcomes. We call it____________? options: Moment Sample Mean Variance Expectation

~ Details Week 2: Wine, Spirits, and Beer Assignment: Students will select the types of beverages their business will offer, including a curated list of wines, spirits, and beers. They will describe each selection, its arigin, and how it fits into the overall theme and customer experience of their business. Deliverable: A beverage menu (minimum 10
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why can i not open anything why does it say "blocked by security rules"??

for the initial treatment of alchohol dependency vivitrol should be continued for at least

Hello, please answer. Determine the coordinates of the following points. 1. Point A G 2. Point B 3. Point C 4. Point D N 5. Point E C 6. Point F A D 7. Point G 8. Point H L R K 9. Point I F P 10. Point J -8 -7 6 -5 -4 -3 -2 -1 2 3 4 5 6 7 8 11. Point K m B 12. Point L 13. Point M 14. Point N M 15. Point O 16. Point P H 17. Point Q 18. Point R
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Let C be a constant. For which C does the Integral Converge? (1 point) Let C be a constant. For which C does the integral /m( x C )d 0 x2+1 3x+1 x converge? Evaluate the integral for this value of C. (3: Value of convergent integral = u
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Please explain how to prove the following trigonometric identity: sin(x+y) - sin(x-y) = 2cosx sinx Also - what rule (ie - sum and difference) applies to each step in the process of proving this?

Can youanswer this question pls. The random variable Xcan take one of the three discrete values: 1. 2 or 4. The probabiiity mass function '5 such that P(X = 1) = (I. P(.X = 2) = kc: and P(.X = 4) = 3a, where a and k are positive constants. Compute P[X > 2] given that E[X) : 17/6. Give your answer to 3 declmai pieces
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Please show the work Graphing Linear Equations Graph the line with the given slope that goes through the given point. 7. Through (-1,3) with m= 0 10-9 -8 -7 -6 -5 -4 -3 -2 -10 _11 2 3 4 5 6 7 8 9 15 x For 8 Indicate whether line I and line 2 are parallel, perpendicular, or neither. 8. m, = 2 m, = -1/2
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3. The median is the preferred measure of central tendency when a. the scale of measurement is nominal. b. the scale of measurement is ordinal. c. the scale of measurement is ratio. d. the distribution is svmmetrical and the scale of measurement is interval or ratio
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You measure 49 backpacks' weights, and find they have a mean weight of 56 ounces. Assume the population standard deviation is 13 ounces. Based on this, construct a 99% confidence interval for the true population mean backpack weight. Give your answers as decimals, to two places ________________________ounces

Determine the volume generated by rotating the region bounded by the curves x = 1 y^4, x = 0 about the line x = 2. Using cylindrical shells.

A study of a country's colleges and universities resulted in the demand equation q = 20,000 2p, where q is the enrollment at a public college or university and p is the average annual tuition (plus fees) it charges. Officials at Enormous State University have developed a policy whereby the number of students it will accept per year at a tuition

1) Change each of the following percents into a decimal. a) 0.15% b) 8.6% c) 124% d) 1 1/3% e) 150 3/4% f) 25 2/11%

For f(x) find a g(x) < f(x) and an h(x) > f(x) which allow you to use the Squeeze Theorem, then find the limit. lim 2x 3 / x +1 x-->0

Explain the differences between qualitative and quantitative research and the purpose of each, and discuss the benefits of a mixed methods approach?

( 1 point Let X and I have joint density function F( 5 3 ) = ( 3 ( + 2x ) for O s x 5 1 0 sys 1 otherwise Find the probability that ( 2 ) X 1/3 probability ( b )
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Graphing Linear Equations 1. Determine if the ordered pair satisfies the equation. y = 8X - 3 (0,3) For the equation, complete the given ordered pair. 2. y = 3x - 5 (,13)
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Select all of the vendors to be recommended. (Check all thatapply.)???????? You are in charge of analyzing five new vendors of an important raw material and have been given the information shown below (1 = worst, 10 = best). Management has decided that criteria 2 and 3 are equally important and that criteria 1 and 4 are each four times as
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I need help with this question please Solve. W2 - 4w=0 The solution(s) is/are w = (Type an integer or a simplified fraction. Use a comma to separate answers as needed. Type each solution only once.)
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As production increases TC increases by the rate equal to the Avc =mc (average cost equal to marginal cost

A college professor randomly selects 25 freshmen to study the mathematical background of the incoming freshman class. The average Sat score of these students is 565 and standard deviation is estimated to be 40. Using using this information can the professor reject the null hypothesis that the average test score is 550 or less. The use 5%level of

How many liters of paint must you buy to paint the walls of a rectangular prism-shaped room that is 17m by 13m with a ceiling height of 8 m if 1 L of paint covers 40m2? (Assume there are no doors or windows and paint comes in 1-L cans.)

Section 5.5, Exercise 23: Use the given inner product to compute the length ||1 + 2t|| and the distance d(3 5t, 4 + t). 23. In the space P1 of the polynomials of degree 1, we define the inner product = 1/2(f(0)g(0) + f(1)g(1)) Find an orthonormal basis for this inner product space. Hi, you don't need to solve 21, please follow the instructions

Susan's Plastics, Inc., manufactures a line of office desk accessories. The company's newest and most popular product is a plastic paper holder for holding the paper up while working at the computer. Production began on February 1, 2019. Plastic is poured into molds to form the product, and the entire process takes place in the Molding Department.

Find the profit function if cost and revenue are given by C(x)equals189plus7.9x and Upper R left parenthesis x right parenthesis equals 5 x minus 0.02 x squared

Is it correct? possible Solve the given quadratic equation by completing the square. (R + 7)(R +1) = -6 R= -4+13, -4-13 (Simplify your answer. Use a comma to separate answers as needed. Type an exact answer, using radicals as needed.) 2
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The slope of a regression line represents: O a. The average change in the dependent variable for a unit change in the independent variable Ob. The intercept of the regression line Oc. The correlation coefficient between the variables Od. The residual value in regression analysis

Question 13 A function that converts dress sizes in the United States to those in Europe is given by D = f(ac) = 2x + 24 where a is the size in the United States. a. Find the European dress size that corresponds to a U.S. dress size of x = 12. D = b. Find the function that converts European dress size to U.S. dress size. x = f-1(D) = c. Use part
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what is the probability of either odd or black on an american roulette board

we saw a graph on n vertices with only 11 1 edges with diameter 2. The (Iowa-side of that graph {as a network) was that taking out the center vertex left us without any connections at all. Describe a graph with the feWest number of edges so that even if a vertex is taken out, everybody is still connected to everybodv elm fevpmf For the vertex that
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Hi, I needed help with this question Thank you In a time-use study, 63 randomly selected managers were found to spend a mean of 3.70 h each day on paperwork. The population standard deviation is known to be about 0.81 h. Construct the 95 % confidence interval for the mean time spent on paperwork by all managers. Round the z-value to 3 decimal
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(X 1,X2)T has a bivariate normal distribution. Suppose that X1 and X 2 are uncorrelated. Are they independent
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Not sure how i can solve this Score: 2.5/9 2/9 answered Question 9
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What's the expected payoff will be $? The owner of Pearl Automotive Dealers is trying to decide whether to expand his current facility. If he expands and customer demand turns weak, there is a chance he could lease part of his newly constructed facility to another dealer. If he doesn't expand and strong demand occurs, he could attempt to lease
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H1 maths statistics 11 The times taken, in minutes, for runners from two large athletics clubs, the Arrows and the Beavers, to run 5000 metres have independent normal distributions with means and standard deviations as shown in the following table. Mean Standard Deviation Arrows 14.8 0.55 Beavers 15.2 0.65 (i) Find the probability that the time
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content area top Part 1 Simplify the complex rational expression. StartStartStartFraction 7 OverOverOver 7 plus StartStartFraction 7 OverOver 7 plus StartFraction 7 Over x EndFraction (Simplify your answer. Use integers or fractions for any numbers in the expression.)

Determine a p-value using the applet. Explain how you did so.id narrow wide 1 5.5 5.55 2 5.7 5.75 3 5.6 5.5 4 5.5 5.4 5 5.85 5.7 6 5.55 5.6 7 5.4 5.35 8 5.5 5.35 9 5.15 5 10 5.8 5.7 11 5.2 5.1 12 5.55 5.45 13 5.35 5.45 14 5 4.95 15 5.5 5.4 16 5.55 5.5 17 5.55 5.35 18 5.5 5.55 19 5.45 5.25 20 5.6 5.4 21 5.65 5.55 22 6.3 6.25

1. Find the determinant of the following matrix: 4 3 CT 2. Find all vectors b so that AT = b is consistent where CT 0 A = 1 0 09 11_ 3. Verify that A" A is symmetric if 1 2 0 A = 4
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SUMMARIZE the essential question SWBAT understand the properties and characteristics of parallelograms. This includes recognizing that opposite sides of a parallelogram are equal in length, opposite angles are equal, and the diagonals bisect each other

The width of a rectangle is 4 units less than the length. The area of the rectangle is 32 square units. What is the width, in units, of the rectangle

Graph the function over a two-period interval. Give the period and amplitude. y equals negative 8 cosine 3 x Question content area bottom Part 1 The amplitude is enter your response here. (Simplify your answer.) Part 2 The period is enter your response here. (Simplify your answer. Type an exact answer using pi as needed. Use integers or fractions

which one of the following should be classified as indirect labour: A . Assembly workers on a car production line B Bricklayers in a house building company Machinists in a factory producing clothes Forklift truck drivers in the stores of an engineering company
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2. The Office of the Student Admissions is studying the relationship between the score in the entrance exam during application and the General Weighted Average (GWA) upon graduation among graduates of the university from 2017-2020 Population: Sample: Variable of interest
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Would a VT of 750 mL be appropriate for a 5'4" female weighing 76kg

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