Saturday

February 6, 2016
Total # Posts: 669

**college algebra**

A steel drum in the shape of a right circular cylinder is required to have a volume of 100 cubic feet. express the amount of material required to make the drum as a function of the radius r of the cylinder. also how much material is required if the drum is of radius 3 feet?
*February 27, 2012*

**Calculus**

I'm sorry. Looking back at the question I posted, I forgot to made -1 an exponent. It should read: R(x)= 58,000x + 38,000(10+x)^-1 - 4000
*February 18, 2012*

**Calculus**

Suppose that the revenue in dollars from the sale of x campers is given by the formula shown below. R(x) = 58,000x + 38,000(10 + x)−1 − 4000 (a) Find the marginal revenue when 10 units are sold.
*February 18, 2012*

**Calculus**

Find the derivative of the function. Simplify and express the answer using only positive exponents only. y = (x - 4)^2 (x + 3)
*February 18, 2012*

**calculus**

The Revenue from the sale of x units of a product is represented by the following formula: R = 20(3x + 1)^-1 + 50x - 17 dollars. Find the Marginal Revenue when 20 units are sold?
*February 12, 2012*

**Ethics**

I need help in understanding what the viewpoint would be of a virtue ethicist in deciding who should receive a liver transplant. There are 5 candidates: Bob- is 40 years old unemployed, homeless with a severe drinking problem and a criminal record.He was the first to sign up ...
*February 6, 2012*

**Finding distances--fixed question**

Sorry, I meant to put say the person is 1.8 meters tall and they are standing far enough away to have an angular height of 5 degrees. The question then is how far away is the person.
*February 2, 2012*

**Finding distances**

Person is 1.8 meters tall standing far away at angular height of 5 meters. How do I find how far way they are
*February 2, 2012*

**Finding distances**

Person is 1.8 meters tall standing far away at angular height of 5 meters. How do I find how far way they are
*February 2, 2012*

**American Government**

What do America's founding principles have roots in?
*January 29, 2012*

**Chemistry**

How much heat energy is required to raise the temperature of 4.50 liters of water from 36 degrees celcius to 44.6 degrees celcius?
*January 15, 2012*

**3rd grade math**

water makes up 7/10 of your body. Is more than 1/2 of your body water? write a number sentence to compare 7/10 and 1/2. Explain
*January 14, 2012*

**Health Science**

Hi, I'm writing my assignment on people's lifestyles and cant come up with many ideas... this is the question: Why health professionals have to take into account factors that influence people's lifestyle choices?
*January 13, 2012*

**English**

Is it correct to say,"Meetings will be held on the 1st and 3rd Sunday of the month"?
*January 4, 2012*

**algebra 2nd grade**

find the missing number 42-9=43-
*December 12, 2011*

**algebra**

find the vertex, line of symmetry,and the maximum or minimum value of f(x). Choose the graph that represents f(x)=1/4(x+9)^2+7
*November 28, 2011*

**Pre-Algebra**

Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs. When the same airplane...
*November 13, 2011*

**Pre-Algebra**

Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs. When the same airplane...
*November 13, 2011*

**math**

Web Results For:The ratio of john's money to Peter's money was 4:7 at first. After john spent 1/2 of his money and Peter spent $60. Peter had twice as much money as john. How much money did john have at first?
*November 10, 2011*

**Chemistry**

Ok, thank you. That was the only way I could think of doing it too. What would the bond angles therefore be?
*November 10, 2011*

**Chemistry**

Hi, I have to draw a dot and cross diagram for NH2+ and then state the bond angles. I have done NH2-, but I am not sure how to do the + one.
*November 10, 2011*

**IntroductiontoPsychology**

According to Howard Gardner independent intelligence: (a) originates at a single site in the brain (b) comes for a differentsystemin the brain (c) originates inthe limbic system (d) has connections with the hippocampus I have the answer as B
*November 5, 2011*

**Introductin to Psychology**

Alyssa's family had moved in the middle of her junior year in high school. At her old school she was a varsity cheer leader, vice president of the student council, and would ave been presented as the school "sweetheart" at homecoming had her family not moved. Now...
*November 5, 2011*

**Introduction to Psychology**

Ms. Sue, I meant to say hypothesis for the question that starts with Joaquin has been assigned a primary research
*November 5, 2011*

**Introduction to Psychology**

New technology is a wonderul servant, but the learning curve is often steep. Men often viewthemselves are more capable of using new technology that women because: (a) women learnnew skills more slowly (b) men generally have a higher estimation of their abilities than women do ...
*November 5, 2011*

**Introduction to Psychology**

After the day of the wreck, Yung avoided the corner of 9th and Mulberry. He knew that there was nothing wrong with thatparticular location, but since the acident he experienced shortness of breath and tightness in his muscles when he drove past the corner. Classical ...
*November 5, 2011*

**Introduction to Psychology**

Joaquin has been assigned a primary research project in his psychology class. He is to observe student behavior during a learning task andattempt to for a(an) ________. In order to do this, he must be able to describe principlesand events, and how they may be related. Would it...
*November 5, 2011*

**Business English**

Positive roles and actions of individuals that help the group build loyalty, resolve conflicts, and function smoothly include: (a) demonstrating openness and acceptance. (b) taking every opportunityto be the first to speak and insisting on personally responding to everyone ...
*November 4, 2011*

**Business English**

A store is designing a new catalog for its fall collection. Which of the following is LEAST likely to increase the store's credibility? (a) Creating a glossy photo layout with a varety of pictures (b) Stating the facts about each product (c) Promising consumers that these ...
*November 4, 2011*

**Business English**

In which of thefollowing sentences is therefusal iplied rather than directlystated? (a) "We are not hiring anyone at the moment, but thank you for your interest. (b) "You cannot work in the production area because you are under 18 years old." (c) Employees who ...
*November 4, 2011*

**Business English**

Which of the following would be the BEST strategy to follow in the opening paragraph of a letter to clients announcing expanded hours. (a) Explain that the results of a recent survey indicatethat a lot of people are unhappy with the current hours. (b) State what the new hours ...
*November 4, 2011*

**Business English**

"I was sorry to hear about your mother's death." Indicate the alternative that both correctly evaluates the sentence and correctly explains the reason for the evaluation. Would it be: (a) Lacks you-attitude because it begins with the word"I" (b) Lacks ...
*November 4, 2011*

**Business English**

Trevor Collins works in the collections department, and he is very successful at writing professional, effective letters to customers whose accounts are overdue. The human resources department asks to use copies of some of his letters in a training course for new employees to ...
*November 4, 2011*

**Business English**

Which of the following, if any, is the BEST replacement for "seems to be of importance"? I have the answer as (B) "Seems Important" Is this the correct answer?
*November 4, 2011*

**Chemistry**

*decreases and ok, thank you!
*November 3, 2011*

**Chemistry**

This question seems too simple to me but i was just wondering if someone could help me with it? 8 a) Explain why the first ionisation energy values for the Group 1 elements become less positive as you go down the group? I have done this part it's b which is what I would ...
*November 3, 2011*

**physical science**

a charge of + 2x10-7c is 10cm from a charge of -6x10-6c find magnitude and direction of force on each charge
*November 2, 2011*

**PSYCHOLOGY**

He is never going to change. He is set in his ways," the cliet complained. "Let's think about it. Does this hurt you or him?" the therapist is applying: I put the answer as (a) a cognitive treatment approach. Is this correct?
*October 30, 2011*

**Psychology**

Thanks for the answer. I wasn't sure
*October 29, 2011*

**Psychology**

Kevin hates his job, his girl friend dropped him, and he had a headache this morning from staying up too late eating hamburgers and drinking beer by himself. He has decided to initiate a new attack today and take control of his life.He will fin a new job, forget the girlfriend...
*October 29, 2011*

**Psychology**

It may be difficult to sooth a crying baby who needs to befed and changed with cuddling and toys. The strengthof the physical needs in this situation support: Would the answer be B- the incentive approach to motivation
*October 28, 2011*

**physics**

A quarterback throws the football to a stationary receiver who is 16 m down the ﬁeld.The football is thrown at an initial angle of38.5◦to the ground.The acceleration of gravity is 9.81 m/s2.a) At what initial speed must the quarterback throw the ball for it to ...
*October 24, 2011*

**algebra**

2.20
*October 18, 2011*

**cost accounting**

The East Company manufactures several different products. Unit costs associated with Product ORD203 are as follows: Direct materials $50 Direct manufacturing labor 8 Variable manufacturing overhead 10 Fixed manufacturing overhead 23 Sales commissions (2% of sales) 5 ...
*October 14, 2011*

**Finance - Required Return from a Beta**

My bonds have a 12% coupon rate. Interest is paid semi-annually. The bonds have a par vaule of $1000 and will mature 8 years from now. Compute the vaule of the bonds if the required rate of return is 8%?
*October 4, 2011*

**statistics**

True or false> in a physics class there are 9 juniors and 21 males. Then there must be 30 male juniors in this class.
*September 27, 2011*

**statistics**

if there are 12 likely events, the the probability of the first one occuring is 1/12> True or false
*September 27, 2011*

**statistics**

at a certain college, there were 700 science majors,100 engineering majors and 500 business majors. if one student was selected at random, the probability that they are an engineering major is?
*September 27, 2011*

**statistics**

Will the sampling distribution of means be approximately normal if n=25 or so, even if the frequency distribution of X values is not normal?
*September 25, 2011*

**math**

Jill ley took out a loan to pay for education for $60,000. would be repay back in 8 years with the interest of 6% what will be jill pay back at the end of the loan is:
*September 22, 2011*

**6th grade math**

3/4x-2/3x=2/5
*September 21, 2011*

**math**

3a^2+25a+28/3a+4 =
*September 20, 2011*

**biology**

the ability to cause change: organisms use energy to perform biological functions
*August 25, 2011*

**Child Care Managment**

I think the answer is D but i cant seem to find it any where in the book. Pages 125-126
*August 19, 2011*

**math**

how to solve (1/291 - 1/x)
*August 17, 2011*

**child developement**

according to erickson, lack of identity is
*August 8, 2011*

**accouting**

Horton Company, as lessee, enters into a lease agreement on July 1, 2008, for equipment. The following data are relevant to the lease agreement: 1. The term of the non-cancelable lease is 4 years, with no renewal option. Payments of 422,689 are due on June 30, of each year. 2...
*August 1, 2011*

**Algebra**

translate to an algabric expression; one more than foru times a number
*August 1, 2011*

**Organic Chem**

I had posted this question yesterday morning at 4:58am. Any possibility someone can help? I just completed a lab called "Acid-Catalyzed Dehydration of an Alcohol: Synthesis of 2-Octenes." I started with 2-octanol and the lab instructions said the product had the ...
*July 15, 2011*

**Organic Chem**

You have a bottle of cyclohexane and a bottle of cyclohexene, but they are unlabelled. Which of the following reagents would be the best choice to use to distinguish which was which? a. KOH/H2O b. KOH/CH3OH c. CH3ONa/CH3OH d. CH3CH2ONa/CH3CH2OH e. (CH3)3COK/(CH3)3COH My ...
*July 15, 2011*

**chem**

Which of the following species is isoelectronic, Ba2+ and Ba, Al3+ and Ar, Cl - and Na+ , or Sr2+ and Se2-
*July 12, 2011*

**Stats**

Thanks so much!!!
*July 10, 2011*

**Stats**

Can you tell me what ∑xy means? Like is in the sum of all x times y or what?
*July 10, 2011*

**Economics**

2. Lucy quits a $50,000 job to open her waffle business. She makes $225,000 in revenue from her first year of waffle sales. She pulls $50,000 out of an account that returns 3% interest per year and invests the entire amount in her business. She also borrows $50,000 at 10% ...
*July 9, 2011*

**Economics**

The lost interest from the savings she used to start her business. -- is this an implicit or explicit cost? Is this a fixed or variable cost?
*July 9, 2011*

**chemistry**

a 30.0 ml solution of potassium nitrate was diluted to 125 ml and 25 ml of this solution were then diluted to 150 ml. the concentration of the final solution is 0.00307 M. Calculate the concentration of the original solution.
*July 7, 2011*

**chem**

What pressure (atm) is exerted by a column of ethanol 86.0 cm high. The density of ethanol is 0.789 g/cm3 and 9.8 m/s2 as your gravitational constant.
*July 6, 2011*

**geometry**

determine the length of the sides and the measures of the angels for the congruent quadrilaterals ABCD and A'B'C'D' there are 2 diagrams but don't know how to show it to you
*June 28, 2011*

**Physics**

1. A 0.200kg ball moves with a velocity of 0.3m/s. It collides with a second ball that is at rest and has a mass of 0.1kg. After the collision, the velocity of 0.1kg ball is 0.26m/s. What is the new velocity of the first ball. Please indicate which equation you use, what ...
*June 26, 2011*

**SCI/275 (Risk Assessment)**

I don't know this math, but the instruction of the assignment says that we are to make a "projection chart" based on the information of record. How do I multiply/divide, etc., in order to find the "future" numbers?
*June 19, 2011*

**SCI/275 (Risk Assessment)**

There is a direction in this assignment where the projection of WNV in Genericville is 50 cases. It also mentions that in 2006, there were 4,269 cases, of WNV including 177 fatalities. It follows with the proposal that the Malathion would reduce the mosquito population by 90% ...
*June 19, 2011*

**Financial Accounting**

, how much manufacturing overhead was allocated to production? Archangel Manufacturing has just finished the year 2012. They created a predetermined manufacturing overhead allocation rate at the beginning of the year based on a percentage of direct labor costs. Below are ...
*June 15, 2011*

**physics**

a) 4
*June 15, 2011*

**Math**

In a geometric series, t1=12 and S3=372. What is the greatest possible value for t5? Justify your answer.
*May 30, 2011*

**whole number**

When stacking bags of dog food, the heaviest items should be placed at the bottom. Starting at the bottom, in what order should bags of dog food weighing 25 pounds, 20 pounds, 30 pounds, and 28 pounds be stacked?
*May 30, 2011*

**computer science**

in visual logic You will need to design an application that it will prompt a user for their hourly pay rate, their hours worked, and whether they are single, married, divorced, or widowed. It will then calculate their gross and net pay. If they work more than 40 hours, ...
*May 22, 2011*

**computer science**

it has to be in visual logic.. can u help me just with the input??
*May 22, 2011*

**computer science**

Your goal is to solve the following programming lab activity. Write a program that prompts & accepts a number between 1 and 12. After getting the input, display the number with the appropriate month. (example: This is the 1st month…January, This is the 2nd month…...
*May 22, 2011*

**childhood education**

what does reseach show about the child;s relationship with the primary parental figure when the child has additional attachments to other people
*May 13, 2011*

**College Stats**

Is .09 less than .05?
*May 8, 2011*

**Alg. 2**

determine if equation represent ellipse or hyperbolas. Example 4x^2 = 5y^2 + 6
*May 6, 2011*

**math**

In solving the equation (x + 4)(x – 7) = -18, Eric stated that the solution would be x + 4 = -18 => x = -22 or (x – 7) = -18 => x = -11 However, at least one of these solutions fails to work when substituted back into the original equation. Why is that? Please ...
*May 4, 2011*

**math**

Solve using the substitution method. Sh 3x + 24y = 24, 27x – 15y = -15 .
*May 4, 2011*

**math**

h(t) = -9.8t^2-10t + 250
*May 4, 2011*

**math**

Express in terms of i.-(-496)
*May 4, 2011*

**math**

(4a^3 - 7a^2) - (8a^3 + 1a^2) Subtract = 4a^3 - 7a^2-8a^3 - 1a^3 = 4a^3 - 8a^3 - 7a^2 - 1a^2 = (4-8)a^3 - (-7 - 1)a^2 = -4a^3 - 8a^2 Is this correct?
*May 4, 2011*

**math**

If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest ...
*May 3, 2011*

**math**

Subtract. (4a3 – 7a2) – (8a3 + 1a2)
*May 3, 2011*

**math**

Solve by factoring: 9t2 + 3t= 0 p2 + p + 4 = 0
*May 3, 2011*

**math**

Navigation. The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a barge to travel 24 mi upriver and then return in a total of 5 hr, approximately how fast must the barge be able to travel in still water?Solve by factoring: 9t2 + 3t= 0
*May 3, 2011*

**math**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.2x + 2y = 202x – 2y = 4
*May 2, 2011*

**math**

Use polynomial long division to divide -4x3 + 24x2 – 24x + 4 by x2 – 5x + 1
*May 2, 2011*

**math**

Multiply 3x + 3 by -4x2 + 4x – 2 (Points : 20)
*May 2, 2011*

**math**

Joe has a collection of nickels and dimes that is worth $8.55. If the number of dimes was tripled and the number of nickels was decreased by 2, the value of the coins would be $23.45. How many nickels and dimes does he have?
*May 2, 2011*

**math**

Given the quadratic function f(x) = x2 – 18x + 81, find a value of x such that f(x) = 16.
*May 2, 2011*

**math**

Use polynomial long division to divide -4x^3 + 24x^2 – 24x + 4 by x^2 – 5x + 1
*May 2, 2011*

**math**

use the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this 3x + 24y = 24s,27x – 15y = -15 .
*May 2, 2011*

**math**

. Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. 8x2 + 2x + 4 = 0 Two different irrational ...
*May 2, 2011*

**math**

Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.8x2 + 2x + 4 = 0
*May 2, 2011*

**math**

If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest ...
*May 2, 2011*