Sunday

October 4, 2015
Number of results: 9,994

**stats**

a random sample of 20 prices for summer sleeping bags was taken with a sample mean $83.75 and a sample standard deviation of $29.97 a) find a 95% confidence interval for the mean price of all summer sleeping bags b)what is m i.e. what is the margin f error?
*April 30, 2012 by Anonymous*

**Math**

A jar of peanut butter which is 3 inches in diameter and 4 inches high sells for $0.60. At the same rate, what would be the price for a jar that is 6 inches in diameter and 6 inches high?
*December 7, 2013 by Mike*

**math**

A jar of peanut butter which is 3 inches in diameter and 4 inches high sells for $0.60. At the same rate, what would be the price for a jar that is 6 inches in diameter and 6 inches high?
*December 14, 2013 by Megan*

**Physics**

A motorbike starts from rest at time t=0 and begins to accelerate around a circular track as shown in the figure below. Eventually, at time t=t1 the motorbike reaches the maximum velocity possible without slipping off the track. What's the minimum length in meters the ...
*May 6, 2013 by Mathslover Please help*

**Physics help**

A motorbike starts from rest at time t=0 and begins to accelerate around a circular track as shown in the figure below. Eventually, at time t=t1 the motorbike reaches the maximum velocity possible without slipping off the track. What's the minimum length in meters the ...
*May 8, 2013 by Mathslover Please help*

**algebra**

A bycicle store costs 2,800 per month to operate the store pays an average of 45$ per bike the average selling price of each bycicle is 125 $ how many bycicles must the store sell each month to break even?
*November 1, 2011 by Anonymous*

**Algebra 1**

A bicycle store costs $2400 per month to operate. The store pays an average of $60 per bike. Then average selling price of each bicycle is $120. How many bicycles must the store sell each month to break even?
*January 9, 2013 by Chris*

**Math (Percent discount)**

With the holiday approaching, Nancy's Closet is having a sale, where all their clothes are 40% off. Mary, who works there, can get a further staff discount of 30% off the sale price. What is the total percent discount that Mary gets?
*April 22, 2013 by Bob*

**physics **

A freshman smart alek lips off onces too often! The assistant principle loses her cool and grabs the 38.0kg punk by the hair- swinging him in a vertical circle of radius 1.20m! if the freshman is moving at 6.30m/s at the bottom of the swing, calculate: A) the tensions in the ...
*March 30, 2015 by greoge*

**Math**

The ratio of white marbles to blue marbles in Jeyan's bag is 2 to 5. If there are more than 50 marbles in the bag, what is the minimum number of marbles that can be in the bag? So what I did was add 2 and 5 which is 7 in total so I answered as 7 marbles, but it wasn't right. I...
*January 25, 2015 by Richie*

**math**

NVM's preferred stock currently has a market price equal to $80 per share. If the dividend paid on this stock is $6 per share, what is the required rate of return investors would get from NVM preferred stock?
*May 4, 2011 by Casey*

**Finance**

Calculate the contribution margin per case based on the following information: (a) Variable cost per case $2,000. (b) Fixed cost per period $200,000. (c) Price per case $4,800.
*June 24, 2011 by Karam*

**Math**

Devon purchased tickets to an air show for 9 adults and 2 children. The total cost was $252. The cost of a child's ticket was $6 less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
*June 3, 2013 by Anonymous*

**Intermediate algebra**

Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single rechargeable ...
*February 21, 2014 by K*

**Intermediate Algebra**

Can you show the work of how to work this word problem ? A local electronics store will sell 7 ax adapters and 2 rechargeable flashlights for $86 or 3 ac adapters and 4 rechargeable flashlights for $84. What is the price of a single ax adapter and a single rechargeable ...
*February 21, 2014 by Anonymous*

**physics**

A small source O of electromagnetic waves is placed some distance from a plane metal reflector M. A reciever R, moving between O and M along the line normal to the reflector, detects successive maximum and minimum readings on the meter joined to it. (a) explain why these ...
*March 26, 2010 by Edwin*

**Statistics 15.42**

For each of 10 popular prescription drugs, below lists the retail price for the drug in several different countris, including the US, Canada, Great Britain, and Austrailia. Determine and interpret the coefficients of correlation and determination for US prices versus Canadian ...
*June 16, 2010 by Julia Brown*

**English**

Can you please check these sentences for me? Thank you. 1)Herewith I'd like to know if it is possible to upgrade my reservation for a family room to (?) Your New Premier Club Room. 2) The total price for the two nights will then be of ..... Euros and includes (?) 4 Full Irish ...
*July 21, 2010 by Franco*

**ECONOMICS**

1)A plastic surgeon thinks she can make more revenue by lowering the price of cosmetic surgery. She lowers her hourly rate from $600 to $550. If cosmetic surgery is an elastic service, is she correct in her assumption? A)Yes B)No 2)How would the elasticity of supply relate to ...
*July 10, 2012 by Booker Perry*

**algebra**

In a certain state, people with an income under $15K pay a minimum income tax plus a % of the amount over $12,750.00. The table below shows the income, x, and the taxes paid; y for several people. Using a a linear model, what is the additional % people pay in this state? ...
*January 8, 2010 by bridgette*

**physics**

Find the minimum diameter of a 51.5-m-long nylon string that will stretch no more than 1.01 cm when a load of 68.9 kg is suspended from its lower end. Assume that Ynylon = 3.51·10^8 N/m2 physics - bobpursley, Saturday, October 29, 2011 at 10:32am Hookes Law: elongation= force/...
*October 30, 2011 by maria*

**algebra**

Can someone please tell me if I did this problem right? A new truck that sells for $29,000 depreciates 12% each year. Write a function that models the value of the truck. Find the value of the truck after 7 years. my answer=p(x)=price of truck ($) p(x)=29000(.88)^x value of ...
*March 29, 2007 by Fidelia*

**math check answer**

4. Which of the following is true about a trend line for data? The minimum data point always lies on the trend line. Every data point must lie on the trend line. The trend line describes the pattern in the data if one exists.*** The trend line includes the effect of all ...
*March 22, 2013 by batman*

**Physics (check)**

A merchant in Katmandu sells you a solid gold 1-kg statue for a very reasonable price. When you get home, you wonder whether or not you got a bargain, so you lower the statue into a measuring cup and measure its volume. What volume will verify that it's pure gold...
*May 18, 2008 by Emily*

**macroeconomics**

suppose that congress enacts a significant tax cut with the expectation thatthis action will stimulate sggregated demand and puch the real gdp in the short run. in gact, however, neither real gdp now the price level changes significantly as a result of the tax cut. what might ...
*September 15, 2010 by aimee*

**math**

The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches must be sold? (Round your answer to the ...
*November 14, 2012 by Renee*

**math**

The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches must be sold? (Round your answer to the ...
*November 16, 2012 by Britney*

**Math Help**

1.Of the 80 eith-graders, 32 are going on the class retreat. What percent of the eith grade going on the retreat? A. 25% B. 55%*** C. 40% D. 32% 2.What is the sale price for a pair of shows that was originally prices at $54.99 and now is 20% off? A. $38.49 B. $41.24 C. $43.99...
*December 8, 2014 by Callie*

**phy**

What is the distance between an object and its real image formed by a thin converging lens with focal length f = 21 cm, if the object distance is 100 cm? (b) What is the minimum object-image distance for a real image formed by that lens?
*November 8, 2013 by lin*

**Algebra**

which of the following is true bout a trend line for data? a- the minimum data point always lie on the trend line b- every data point must lie on the trend line c- the trend line describes the pattern in the data if one exists d- the trend line includes the effect of all ...
*March 7, 2014 by Steve*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of copper...
*October 4, 2010 by Max*

**Physics**

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? µm? 2) A rectangular block of copper...
*October 4, 2010 by Tommy*

**Fluid Mechanics**

a masonry dam 7m high has a top width of 1.5 metres and bottom width of 5 metres.maximum water level in the dam is 1m below the top of the dam. determine the maximum and minimum pressure intensities at the base when the dam is full. take weight of water as 9.81KN/m3 and weight...
*May 9, 2011 by Okolo Daniel*

**Finance**

Johnson Motors’ bonds have 0 years remaining to maturity. Interest is paid annually, the bonds have a $1,000 par value, and the coupon rate is 8 percent. The bonds have a yield to maturity of 9 percent. What is the current market price of these bonds?
*August 30, 2011 by Ashley*

**accounting**

On December 31, 2009, $150,000 of 14% bonds were issued. The market interest rate at the time of issuance was 15%. The bonds pay interest on June 30 and December 31 and mature in 8 years. Compute the selling price of a single $1,000 bond on December 31, 2009
*February 21, 2012 by bry*

**math**

Andrea buys four shirts and three pairs of pants for $85.50. She returns the next day and buys three shirts and five pairs of pants for $115.00. What is the price of each shirt and each pair of pants? How would I solve this? I need to show my work...
*February 11, 2013 by ki*

**maths**

1.a cloth merchant on selling 27 metres of cloth obtains a profit equal to the selling price of 9 metres of the same cloth . find the profit percent. 2. by selling cloth at rupees 9 per metre a shopkeeper loses 10% . at what rate should it be sold so as to gain 15%.
*June 26, 2013 by tina*

**Finance**

You have just purchased a new warehouse. To finance the purchase, you have arranged for a 30-year mortgage loan for 80 percent of the $2,800,000 purchase price. The monthly payment on the loan will be $22,000. a. What is the effective annual rate (EAR) on this loan?
*November 17, 2013 by lp*

**Algebra**

A boy was sent with $2.10 to buy oranges. He found the price 3 cents higher per dozen than he had expected to pay, and so he bought 6 fewer oranges than he had intended to buy and received 1 cent in change. How much did he pay for a dozen oranges?
*April 17, 2014 by Summer*

**probability**

A stock market analyst figures the probabilities that two related stocks, A and B, will go up in price. She finds the probability that A will go up to be 0.6 and the probability that both stocks will go up to be 0.4 What should be her estimate of the probability that stock B ...
*July 7, 2013 by sarah*

**Physics**

A dirt biker races up a 15° incline and then takes off in an attempt to clear an obstacle. The end of the ramp is 3 m off the ground. A 4-m high obstacle is located 20 m from the base of the ramp. What minimum take-off speed is required for the daredevil to clear the obstacle...
*January 28, 2014 by Anonymous*

**MATH :DD**

Mr. Keskin and his wife have a cell phone plan that charges them $5 for 200 text messages per month for each of their phones. The Keskins are charged an additional $0.12 for each text message over their 200-text-message limit. Their carrier has offered them unlimited text ...
*March 9, 2014 by Yummi *

**Physics**

the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an applied force of 200N is needed to move a block...
*January 21, 2009 by lulu*

**physics**

the inclined plane is 30* from the ground a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job? c) Suppose that an applied force of 200N is needed to move a block...
*January 21, 2009 by sasha*

**Math: Calculus**

Answer the following questions for the function f(x)=sin(x/4)^2 defined on the interval [-12.266371, 2.241593]. Rememer that you can enter pi for as part of your answer. a.)f(x) is concave down on the interval ____. b.) A global minimum for this function occurs at ____. c.) A...
*November 3, 2010 by NEED HELP!!!!*

**Physics**

A contestant in a winter games event pushes a 59.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. The block is being pushed at a direction of 23 degrees below the ...
*February 17, 2015 by Mariah*

**Math209**

Selling shirts. If a vendor charges p dollars each forrugby shirts, then he expects to sell 2000 - 100p shirts ata tournament. a) Find a polynomial R(p) that represents the total revenuewhen the shirts are p dollars each. b) Find R(5), R(10), and R(20). c) Use a bar graph to ...
*March 13, 2010 by Joseph*

**Microeconomics**

I am having a hard time answering these questions. I just need them explained to me so that I really understand them, when I get ready to take my test. 1. How do changes in demand/supply affect prices? 2. How does a change in demand/supply affect the equilibrium price? 3. How ...
*September 11, 2011 by Ms. Jones*

**Bank management**

You own a corporate bond that carries a 5.8 percent coupon rate and pays $10000 at maturity in exactly 2 years. The current market yield on the bond is 6.1 percent. Coupon interest is paid semiannually and the market price is $9944.32. Calculate Macaulay's duration and ...
*October 27, 2013 by chris*

**PHysics**

Consider a space habitat that consists of a rotating cylinder. If the variation in g between one's head and feet is to be less than 1/105 g, then compared to one's height, h, what should be the minimum radius of the space habitat? (in terms of h) The centripetal acceleration ...
*November 20, 2006 by Stephen*

**Calculus **

An OPEN box has a square base and a volume of 108 cubic inches and is constructed from a tin sheet. Find the dimensions of the box, assuming a minimum amount of material is used in it's construction. HINT: the goal is to minimize the surface are of the OPEN box; this is the ...
*May 14, 2013 by Jennifer*

**Economics for Manager**

Hello, Could someone please help me find the answer to this question: The two largest diner chains in Kansas compete for weekday breakfast consumers. The two chains, Golden Inn and Village Diner, each offer weekday breakfast customer a “breakfast club” membership that entitles...
*December 7, 2010 by Daniel*

**Thermodynamics**

Design Problem- A steam boiler may be thought of as a heat exchanger. The combustion gases may be modeled as a streram of air because their thermodynamic properties are close to those of air. Using this model, consider a boiler that is to convert saturated liquid water at 500 ...
*October 31, 2012 by Alyssa*

**Thermodynamics**

Design Problem- A steam boiler may be thought of as a heat exchanger. The combustion gases may be modeled as a streram of air because their thermodynamic properties are close to those of air. Using this model, consider a boiler that is to convert saturated liquid water at 500 ...
*October 31, 2012 by Alyssa*

**math**

need to calculate total purchase price I can afford for a home. monthly income $5875. .28 x $5875.=$1645.monthly mortgage 7.70 interest for 25years.placing 25% of my yearly income down. this is as far as I have gotten... 7.70x = 1645. 7.70x 1645 7.70 7.70
*October 11, 2011 by old me*

**Finance**

Harrison Inc. has issued a zero/ coupon bond with par value of $1000. The bond pays no coupons until the end of the 6th year, at which point it pays 10% annual coupons. What is the issue (initial) price of this bond if it has a 20 year maturity and yield to maturity of 6%?
*October 7, 2013 by Kay*

**stats**

You are a travel agent and wish to estimate, with 95% confidence, the proportion of vacationers who plan to travel outside the United States in the next 12 months. Your estimate must be accurate within 3% of the true proportion Find the minimum sample size needed, using a ...
*November 13, 2012 by Anonymous*

**economics**

Which of the following is an example of market size affecting demand? A. Restaurant visits drop after a causes a city to be evacuated. B. A computer chip maker moves to a town and hires hundreds. C. After a team wins the World Series, it becomes a fad to buy their caps. D. ...
*May 20, 2013 by Mitchel*

**Physics**

One end of a uniform 3.20-m-long rod of weight Fg is supported by a cable at an angle of θ = 37° with the rod. The other end rests against the wall, where it is held by friction as shown in the figure below. The coefficient of static friction between the wall and the rod...
*April 5, 2014 by Joe*

**Physics**

A stunt motorcyclist is attempting to jump over a river of width 60m using a ramp which is inclined at 30 degrees to the horizontal. Assume the height of the ramp is small enough to be ignored in the calculations. a) What is the minimum speed the stunt motorcyclist would need ...
*March 2, 2014 by Bonnie*

**marketing**

There are four Ps in marketing. These are Price, Product, Promotion, and Place. Choose a product or service with which you are familiar. Describe the product or service. Then, in your own words, describe the 4-P decisions which would be important when marketing this product.
*January 24, 2010 by Anonymous*

**math**

Straub's Bakery makes 200 Danish cakes that cost $2.70 each. Straub's needs a 66% markup on cost and normally discards 10% of what it makes. At what price should Straub's sell the Danish cakes?
*February 16, 2015 by mo*

**Math (please help!)**

The largest Ferris Wheel in the world is the London Eye in England. The height (in metres) of a rider on the London Eye after t minutes can be described by the function h(t) = 67 sin[0.2094(t-30)] + 70 Using this equation i'm supposed to find the diameter, the maximum (top of ...
*January 23, 2011 by Haley*

**Pre-Calc**

A wire 100 centimeters in length is cut into two separate pieces (not necessarily equal). ON epiece is bent to form a square and the other to form a circle. Let x equal the length of the wire used to form the square. a. Write the function that represents the are of the two ...
*January 22, 2014 by Andy G*

**Physics, Please Help**

A homeowner is trying to move a stubborn rock from his yard which has a mass of 1025 kg. By using a lever arm (a piece of wooden board) and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum 24.4 cm from the ...
*November 25, 2012 by Mike*

**relations and functions**

Seeds of type A and type B are sold ihna packet each packet must contain 1) both type a and type b seeds 2)at least tewice the number of type B seeds s there are of type A 3)no more than 12 seeds a) state the minimum number in each packet of type a and of type B seeds b)if ...
*February 26, 2008 by Keisha*

**Calculus**

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs 37˘/square foot, the material for the sides costs 10˘/square foot, and the material for the top costs 13˘/square foot, determine the dimensions of the box that can be ...
*June 17, 2013 by Anonymous*

**Physics**

To qualify for the finals in a racing event, a race car must achieve an average speed of 225 km/h on a track with a total length of 1.4 km. If a particular car covers the first half of the track at an average speed of 205 km/h, what minimum average speed must it have in the ...
*June 15, 2014 by Piper*

**Physics**

To qualify for the finals in a racing event a car must achieve an average speed of 250 km/h on a track with a total length of 16,000 m if a particular car covers the first half of the track at an average speed of 230 km/h what minimum average speed Must It have in the second ...
*September 10, 2015 by Aleksa*

**MBA Executive : Banking & Finance**

1) The right under which an unpaid seller who is in possession of the goods is entitled to retain them until payment of the price is done is termed as....... 2)If the no of level investments be ‘t’, total no of level installments be ‘n’ and total charge for credit be ‘c’ then ...
*April 10, 2011 by sushma*

**Information Technology**

I have this assignment due tonight in about 2 and a half hours. I am going to try to finish it the best that I can but I do not know if I will be able to. I really am stuck. I have no idea where to even start on this. Can somebody please help?! • Read the following scenario: ...
*May 28, 2011 by Josh*

**physics**

In a popular amusement park ride, a rotating cylinder of radius 4.00 m is set in rotation at an angular speed of 5.00 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between a rider's ...
*July 11, 2008 by Elisa*

**Science**

Two satellites are launched at a distance R from a planet of negligible radius. Both satellites are launched in the tangential direction. The ﬁrst satellite launches correctly at a speed v0 and enters a circular orbit. The second satellite, however, is launched at a ...
*December 22, 2011 by Anonymous*

**Calculus**

A rectangular box with square base (which is NOT necessarily a cube) and NO top is to be made to contain 9 cubic feet. The material for the base costs $2 per square foot and the material for the sides $3 per square foot. Find the dimensions that minimize the cost of the box ...
*March 24, 2013 by Marto*

**Precalculus**

I'm working on a project and I need some help with figuring out the equations to write. Here is all the information about the project: You and your friends decide to produce your own CD. After searching on the Internet, you find a low-cost CD duplication outfit that will let ...
*November 18, 2007 by Courtney*

**Algebra 1**

Mr. Keskin and his wife have a cell phone plan that charges them $5 for 200 text messages per month for each of their phones. The Keskins are charged an additional $0.12 for each text message over their 200-text-message limit. Their carrier has offered them unlimited text ...
*March 8, 2014 by Jackie*

**7th grade math**

Can you check the following? 10. A store pays $10 for a bracelet, and the markup is 115%. A customer will also pay 5 1/2% sales tax. What will be the total cost of the bracelet to nearest cent? t = 1.15 x 10 t = $11.5 (markup price) t = $10 + 11.5 t = $21.50 (cost of bracelet ...
*January 16, 2015 by Alexis*

**Math percentage**

I don't really understand percentages grade 6 math. 1.60% discount on a 7$ item so items price is 40% of original so 0.4 x 7= 2.8$? 2. A population of 1500 people increases 15% each year how would this question be done? 1500 x .15=225 so the next years population would be 225...
*July 27, 2009 by kelly*

**algebra**

if a vendor charges p dollars each for rugby shirts, then he expects to sell 2000-100p shirts at a tournament. a. Find a polynomial R(p) that represents the total revenue when the shirts are p dollars each b. Find r(5), R(10), and R(20) C. Use the bar graph to determine the ...
*February 25, 2011 by Anonymous*

**algebra **

The price of a small cabin is $85000 the bank requires a 5% down payment the buyer is offered two mortgage options: 20 year fixed at 9.5% or 30 year fixed at 9.5% calculate the amount of interest paid for each option how much does the buyer save in interest with the 20 year ...
*November 7, 2012 by tracy*

**Math**

The price of a small cabin is $40,000. The bank requires a 5% down payment. The buyer is offered two mortgage options: 20-year fixed at 8.5% or 30-year fixed at 8.5 %. Calculate the amount of interest paid for each option. How much does the buyer save in interest with the 20-...
*November 17, 2012 by kaitlyn Blackmon*

**Managerial Economic**

Mr. Smith has the following demand equation for a certain product: Q = 30 - 2P. a. At price of $7, what is point elasticity? b. Between prices of 5$ and 6$, what is the arc elasticity? c. If the market is mark up of 100 individuals with demand curve identical to Mr. Smith's, ...
*December 8, 2013 by sophea*

**math**

The price of a small cabin is $35,000. The bank requires a 5% down payment. The buyer is offered two mortgage options: 20-year fixed at 7.5% or 30-year fixed at 7.5%. Calculate the amount of interest paid for each option. How much does the buyer save in interest with the 20-...
*September 25, 2015 by jessica*

**English**

Does anyone have the superior knowledge as to where I could find an easy read translation of Romeo and Juliet for no price at all on the Internet?? Thank you for your valuable time and wonderful guiness. you could just read spark notes summaries Thank you for using the Jiskha ...
*February 22, 2007 by Caroline*

**Math 116**

could someone please help me with this question. I have no clue where to start... the line: y = 0.15x + 0.79 represents an estimate of the average cost of gasoline for each year. the line: 0.11x - y = -0.85 estimates the price of gasoline in January each year. a) do you expect...
*October 15, 2008 by Carmen*

**Economics**

The Law of Supply (movement along the curve due to the price effect) occurs because A) producers usually offer more for sale at lower prices than at higher prices. B) marginal production costs usually fall at higher rates of production. C) people can buy only so much of a ...
*June 26, 2013 by Allison*

**math**

black tea at $2.40 per kg is mixed with green tea at $3.20 per kg in the ratio 1:3 calculate the weight of each type of tea in 40 kg of the mixture and calculate the price per kg of the mixture
*August 15, 2015 by shah*

**physics PLEASE HELP**

A hydraulic cylinder with a radius of 0.0268 m has a piston on the left end and a safety valve at the right end. The safety valve is a circular opening with a radius of 0.00639 m, sealed with a disk. The disk is held in place by a spring (spring constant = 964 N/m) that is ...
*November 1, 2012 by Cat*

**math**

The lengths of what are considered "1 inch bolts are found to be normally distrubted with a mean of 1.001 inches and a standard deviation of 0.002 inches. If a bolt measures more than 2 standard deviations away from the mean, it is rejected for not meeting factory tolerances. ...
*April 12, 2011 by david*

**calc**

let f be function given by f(x)= Ln(x)/x for all x> 0. the dervative of f is given by f'(x)= (1 - Ln(x))/x squared. a) write equation for the line tangent to the graph of f at x=e squared b) Find the x-coordinate of the critical point of f. Determine wheter this point is a ...
*May 19, 2008 by sarah*

**AP Calculus**

Consider the curve given by x^2+4y^2=7+3xy a) Show that dy/dx=(3y-2x)/(8y-3x) b) Show that there is a point P with x-coordinate 3 at which the line tangent to the curve at P is horizontal. Find the y-coordinate of P. c) Find the value of d^2y/dx^2 (second derivative) at the ...
*January 26, 2011 by Leanna*

**physics**

a kicker kicks a football from the 5 yard line to the 45 yd line ( on the same half of the field). Ignoring air resistance, where along the trajectory is the speed of the football a minimum. what formuls is used and show work a) at the 5 yd line, just after the football leaves...
*September 6, 2010 by Alli*

**managerial economics**

When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within two weeks sales had ...
*March 14, 2008 by jean*

**managerial economics**

When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within two weeks sales had ...
*March 14, 2008 by jean*

**Critical Thinking**

Is the following passage valid/sound/strong arguments and what is the reasoning? If you want to see the best version of the three muskateers, try the 1948 version. Lana Turner is luscious, Vincent Price is dastardly; Angela Lansbury is exquisitely regal; and nobody ever has or...
*March 29, 2010 by Lo*

**Physics**

Monochromatic light of wavelength, λ is traveling in air. The light then strikes a thin film having an index of refraction n1 that is coating a material having an index of refraction n2. If n2 is larger than n1, what minimum film thickness will result in maximum ...
*August 6, 2015 by Julie*

**STATISTICS**

Births are approximately uniformly distributed between the 52 weeks of the year. They can be said to follow a uniform distribution from one to 53 (spread of 52 weeks). a. X~ b. Graph the probability distribution. c. f(x)= d. u= e. o= f. Find the probability that a person is ...
*September 19, 2015 by BORNIUCS*

**science **

A ball of mass m is attached by two strings to a vertical rod. as shown above. The entire system rotates at constant angular velocity about the axis of the rod. a)Assuming is large enough to keep both strings taut, find the force each string exerts on the ball in terms of , m...
*April 8, 2012 by tammy *

**MicroEconomics**

A firm currently uses 50,000 workers to produce 120,000 units of output per day. The daily wage per worker is $100, and the price of the firm's output is $48. The cost of other variable inputs is $400,000 per day. (Note: Assume that output is constant at the level of 120,000 ...
*April 19, 2015 by Samantha*

**Physics help.**

The 78.0 kg climber is supported in the "chimney" by the friction forces exerted on his shoes and back. The static coefficients of friction between his shoes and the wall, and between his back and the wall, are 0.840 and 0.630, respectively. What is the minimum normal force he...
*February 21, 2012 by Lilly *