Friday

September 30, 2016
Total # Posts: 1,605

**Pre Cal**

and x<3/4 or x>6 is the answer?

*July 24, 2011*

**Pre Cal**

isn't it the same as d, because the domain is looked at in the demoninatior?

*July 24, 2011*

**Pre Cal**

find the domains of the following functions: a) f(x)=x^20 b) g(x)=1/(x-3) c) h(x)=1/(4x^2=21x-18) d) k(x)=sqrt (4x^2-21x-18) e) p(x)=1/sqrt(4x^2-21x-18)

*July 24, 2011*

**Pre Cal**

a radio actice substance decays so that half of the substance decays every 2 minutes. if 100 g of the substance are present initially, how many grams will be present after 4 minutes and 8 minutes respectively?

*July 24, 2011*

**Precal**

a 6' person is standing x feet away form a 10' lamppost. what is the distance d from the base of the lamppost to the end of the person's shadow, expressed as a function of x.

*July 24, 2011*

**Pre Cal**

which of the expressions are identical? a) cos^2x b)(cosx)^2 c) cos (x^2) d) (sinx)^-1 E) sin^-1 x f) sin (x^-1) g) 1/ sin x

*July 24, 2011*

**Pre Cal**

simplify the expression 2sin^2 t + cos^2 t-2

*July 24, 2011*

**Pre cal**

a sinusoidal function has a local maximum at (0,2) and the next minimum at (Pi/4, -2). a correct equation for the function is

*July 24, 2011*

**statistics**

calculate the probability that a randomly selected student is taller than 5 feet5 inches in height. there are 31 students out of the 57 students who are 5 feet 5 inches in height. I just want to know how to set this problem up.

*July 10, 2011*

**statistics**

calculate the probability that a randomly selected student is a female if they are at most 30 years of age, there are 27 females out of 57 students.

*July 10, 2011*

**Math/116**

. The function C(g) represents the cost C of filling up the gas tank with g gallons of regular gasoline. Given the equation a) What does the number 3.03 represent?

*June 25, 2011*

**chemistry**

Determine the mass of NaCl present needed to prepare 500mL of 4.0%m/v solution. Please show me how to set up problem

*June 16, 2011*

**matt/116**

b. For the first phase of the project, imagine you want to cover the backyard with decorative rock and plant some trees. You need 30 tons of rock to cover the area. If each ton costs $60 and each tree is $84, what is the maximum number of trees you can buy with a budget of $2,...

*June 12, 2011*

**geometry**

x^3-1

*June 10, 2011*

**business**

Prepare a 700- to 1,050-word paper in which you describe the use of statistics within your workplace or a company with which you are familiar. Address the following questions in your paper: • How are statistics used in your workplace? • What is one example of ...

*June 5, 2011*

**american history**

In Virginia, colonists who could pay their way across the Atlantic were granted 50 acres of land to lease for a modest rental fee. The term for such an arrangement was called

*May 31, 2011*

**math/116**

Solve for the identical letter. n=15-m, for m

*May 29, 2011*

**math/116**

thank you

*May 29, 2011*

**math/116**

The formula b=28a is used in New England to estimate the minimum furnace output, b, BTUs, for a modern house with a square feet of flooring. a. Determine the minimum output for a 2300 ft squared modern house. b. solve the formula for a.

*May 29, 2011*

**Economics**

The firm currently uses 50,000 workers to produce 200,000 units of output per day. The daily wage per worker is $80, and the price of the firm’s output is $25. The cost of other variable inputs is $400,000 per day. Assume that total fixed cost equals $1,000,000. Calculate...

*May 23, 2011*

**Prob and stat**

A survey asked people to respond to the statement "I will begin my shopping at the last minute." Thier responses are categorized below. Admitted last-minute shoppers by age group Last minute shopper, under 25, 25 to 44, over 44 Yes, 510, 420, 308 No, 620, 480, 390 ...

*May 17, 2011*

**Prob and Stat**

A tire manufacturer guarantess that its tires will last for at least 60,000 miles. If the tire fails earlier, the manufacturer offers a prorated replacement. Too many such replacements are bad for business, so the manufacturer tests tires at random to see whether corrective ...

*May 17, 2011*

**Estimating Using Confidence Intervals**

An investor wants to determine the true average yield on a selection of investments from the Business week 1000. Suppose the investor draws a random sample of (n=40 firms) and finds an average yield on investment of (xbar = 5.00%) and a sample standard deviation (s = 1.50%). ...

*May 17, 2011*

**Sampling Distribution**

It was reported by the National Forensic Center in the Guide to Experts Fees, 1998-99 that the average fee of forensic accountants for court testimony was 1500. Assume that the population standard deviation is 600. What is the probability that, in a random sample of 100 ...

*May 17, 2011*

**Math**

Find the difference of two cubes 16y^2-49

*May 15, 2011*

**Sociology**

Study of dorm life on campus discovers 60% of residents violate restrictions on alcohol consumption. Publication of the finding would create a furor on campus community. Because no extensive analysis of alcohol use is planned, the researcher decides to keep his findings quiet...

*May 15, 2011*

**Normal Probability Distribution**

A professor at a local college noted that the grades of his students were normally distributed with an average percentage of 74 and a population standard deviation of 10. He found that 6.3% of his students received A's while 2.5% of his students failed the course and ...

*May 14, 2011*

**Probability**

A college professor has been studying the relationship between the attendance habits of his students and the grades they earn in his courses. A breakdown of 200 of his students revealed the following: Attended regularly --- 160 Attended sometimes --- 40 Passed --- 170 and ...

*May 14, 2011*

**ga**

NQU

*May 11, 2011*

**ga**

What letters are needed to complete this pattern? ADF GJM

*May 11, 2011*

**Business Calc**

Hercules Films is deciding on the price of the video release of its film Bride of the Son of Frankenstein. Marketing estimates that at a price of p dollars, it can sell q = 240,000 − 15,000p copies, but each copy costs $4 to make. What price will give the greatest profit?

*May 8, 2011*

**math**

how to find the area of a sector when the radius is 8 and you leave it in terms of pi

*May 5, 2011*

**math**

The problem describes a debt to be amortized. A man buys a house for $350,000. He makes a $150,000 down payment and amortizes the rest of the debt with semiannual payments over the next 12 years. The interest rate on the debt is 11%, compounded semiannually. (Round your ...

*May 1, 2011*

**Math**

gallons of milk were $2.30 each. Write an expression to show this for “g” gallons.

*April 26, 2011*

**english**

select the sentence that is punctuated correctly. The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties. The oil from Eucalyptus ...

*April 25, 2011*

**english**

Please check for any error and correctt them. THanks!!! We have your letter dated August 17; concerning alternative dates to take discover disposition of the plaintiff and the defendant of this case. We suggest that the disposition be scheduled 1:30 p.m. at your office on ...

*April 21, 2011*

**ENGlish**

Please check for errors and correct them. Thanks!!! I received your proposal concerning our collaboration on a play. Your basic plan sound fascinating. I have a cabin on the north shore of Lake Michigan, and if we decide to write the play together I would be happy to offer you...

*April 20, 2011*

**ENGLISH**

o ok thanks

*April 20, 2011*

**ENGLISH**

where are you talking about?

*April 20, 2011*

**ENGLISH**

Please check for any errors. Please make corrections. Thanks!!! Alexandria treasure may have been found after more than three hundred years! The wreckage of a ship believed to be Alexandria has been located off the coast of Florida. The Alexandria disappeared during a ...

*April 20, 2011*

**EnGlIsH**

thanks

*April 20, 2011*

**EnGlIsH**

Please check for any errors. Correct them and I would appreciate it. Thanks!!! This will confirmed your reservation for a sweet of four rooms on a non-smoking floor for the dates of July 3-July 9. As you requested, we will hold your sweet for your late arrival. Incidentally, ...

*April 20, 2011*

**ENGLISH**

Please check for any errors. Correct them for me. Thanks!! Congratulation on your superb achievement. Your new position offers a quite challenge. And I am sure, John that you are the right person for the job. I can think of no one that deserves the promotion more than you do. ...

*April 20, 2011*

**English**

ok thanks

*April 20, 2011*

**English**

Please check for any errors and correc them. Thanks!!! As we discussed, I have made reservations for three days for a sweet of rooms at the North British Hotel in Glasgow Scotland. There are three connection rooms in the sweet. It should suite your needs quite satisfactorily. ...

*April 20, 2011*

**calculus**

find the inflection points for f(x)=x^3-6x-1.

*April 12, 2011*

**Help with English**

thanks so much....there are two other posts that i did that has not been check can u check them for me

*April 6, 2011*

**Help with English**

Pleae check for any comma errors or capialization.If I need to add or delete any commas, please let me know where. Thank you!! You are invited to our private inventory sale, beginning on Wednesday, June 1 through Saturday, June 12. It is a Kingston tradition to feature on of ...

*April 6, 2011*

**Enghlish-Now**

Thank you

*April 6, 2011*

**Enghlish-Now**

Please read any if I need to add any commas or delete any, please let me kow where. Thank you!! Your presentation the Martin Managerial Conference in Chicago was excellent. While you were speaking, the audience was more attentive than they had been at any time during the ...

*April 6, 2011*

**ENGLISH **

ok thanks

*April 6, 2011*

**ENGLISH **

Please check for commas errors and capilization. If I need to add or take out any commas, please show me where. Nashville, TN, November 9, 2011: Anisha Carter was named the new president of M& M Industries, and will take commands of the company on November 14. For the past ...

*April 6, 2011*

**English-Help**

thanks

*April 6, 2011*

**English-Help**

Please check for commas errors. If I need to add or take out any commas, please show me where. Have you quit trying to train your dog? Don’t be discouraged. We have the answer to your problem. Professional obedience training can make an amazing different in the enjoyment ...

*April 6, 2011*

**English**

Thanks

*April 6, 2011*

**English**

Please check for comma errors. If I need to add any commas or take some out please show me where. Thank you!! You seem to be progressing nicely after your back surgery; however, I do want to remind you of the importance of the instructions that was give to you prior to your ...

*April 6, 2011*

**Math**

4, -4 38, -38 260, -260 4092, -4092

*April 6, 2011*

**Physical Geography**

On the windward side of the mountain, should the relative humidity of the parcel change as it rises from 2000 m to 4000 m?

*April 1, 2011*

**Matt 116 Algebra**

This is a discussion problem. y = 45x + 12 I need help solving it

*March 31, 2011*

**English**

Make sure all of the commons are used correctly. If I need to add commas please show me where.And any other errors Thanks In your letter of July 18, you made a settlement demand of $20,000; accordingly, we have forward your settlement demand, the medical reports from Doctor ...

*March 31, 2011*

**business**

It's on page 53 under question number three first bullet :) if we have tha same books lol

*March 24, 2011*

**business**

B :)

*March 24, 2011*

**Math**

what is the rational exponent form of ratical b to the 7th power?

*March 24, 2011*

**English**

Please check for any type of errors. And corect them for me. Thanks!! RE: Evans vs. Brown I tried to call you about the above case, but learned that you were out of town and would not return until Wednesday. You wrote to me on June 1 to ask what authority I have or to get to ...

*March 10, 2011*

**English**

Please checka nd correct fr any errors. Read Johnson vs. Ralston We have received medical information from Midvale Clinic and copies of all the documents we received are enclosed. We received nothing from Dr. Vest and the only items we received from Dr. Greenville were x-rates...

*March 10, 2011*

**English**

Please check for any errors. Correc them for me and I would appreciate it. Thank you for your interest in Rogers Video Theater. I am enclosing a copy of the leased agreement. The $1695.00 unit can be leased for $98.00 a month for 24 months. The first and last to payments are ...

*March 10, 2011*

**English**

Please check for any errors. Let me know if i need to place commas anywhere or delete. Attached are the Widget Sales figures for the past six months. My principle concern is the lack of effectiveness of the sales manager in the Southwest Division. The sales has drop in each of...

*March 9, 2011*

**grammar**

Linda Robbins worked in our payroll Department last summer.

*March 8, 2011*

**ENGLISH**

thank you

*March 3, 2011*

**ENGLISH**

Please check for commas errors, speling and any other grammer error. Please provide the correc answer. The quality in the air in our community interests all of us. We must all work together to keep the air safe for our children. During the past six months we have observed that...

*March 3, 2011*

**geometry**

Trapezoid JKLM has an area of 54. If RC = 6 feet and ML = 8 feet, find JK.

*March 2, 2011*

**+ --> a sphere --> (+)**

Multiple Choice Help: ** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed ...

*February 25, 2011*

**Friction and Charge (Physics Pre-AP 11th Grade)**

Here are my guesses for the answers: A. The hazard of charge build up is that the truck could catch on fire. The static buildup could spark. If it did the fuel and air, all at the same time would allow for it to ignite. The static discharge would cause an explosion into fire, ...

*February 25, 2011*

**Friction and Charge (Physics Pre-AP 11th Grade)**

When a fuel truck is moving, the friction between the truck tires and the road causes charge to build up. This is an example of charging by conduction. a. Explain why the build up of charge is a hazard. b. What can be done to prevent the hazard that would otherwise be produced...

*February 25, 2011*

**Electrical versus Gravitational Forces (Physics)**

Multiple Choice help: * _____ forces between charges are enormous in comparison to ______ forces. * A. electrical, gravitational (possible?) B. gravitational, electrical (possible?) C. positive, negative (wrong, I think) D. negative, positive (wrong, I think) According to the ...

*February 25, 2011*

**[+] (+) [-] PHYSICS PRE-AP 11th GRADE**

Thank you very very much, bobpursley!

*February 25, 2011*

**[+] (+) [-] PHYSICS PRE-AP 11th GRADE**

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Could you please describe the ...

*February 25, 2011*

**Force between Charged Spheres (Physics 11th Grade)**

What is the force between two small charged spheres that have charges of 2 x 10^-7 and 3 x 10^-7 if the distance of r is 30 cm. I think you use Force = the constant of K multiplied by the product of the charges divided by the square of the distance again. If you plug in the ...

*February 25, 2011*

**Force if Distance is Doubled (Physics 11th Grade)**

Two like-charged balloons, placed at a distance of .5 meters, experience a repulsive force of .32 N. What is the force if the distance between the two balloons is doubled? If you use Coulomb's Law, the equation used to find .32 N was Force = the constant of K multiplied by...

*February 25, 2011*

**Value of a Charge of a Body (Physics 11th Grade)**

What is the value of a charge of a body that carries 20 excess electrons? I think that the question asks you to pretend that something is negatively charged by 20 electrons. So I think you take the charge of an electron, which is 1.6 x 10^-19, and multiply it by 20. If you do ...

*February 25, 2011*

**Static Electricity. 11th Grade Pre-AP Physics**

Hi everyone. I also broke these up into separate questions because I figured it would be easier to answer that way in case your specialty is one of the questions and not static electricity as a whole. Thanks to everyone who helps!

*February 25, 2011*

**Static Electricity. 11th Grade Pre-AP Physics**

Hi everyone! I need some help studying for a test on Static Electricity. I have a few review questions that I don't know how to do. Below they are numbered and in parenthesis I answered what I think you might have to do to get the answer. Please help me in any way you can...

*February 25, 2011*

**Science. 11th Grade Pre-AP Physics**

Hi bobpursley. Thank you very much for the starting point. Here goes my guess at the explanation: The positive ball would go first to the negatively charged plate. After which, it would hold a more negative charge. Due to the negative charge, it would travel towards the ...

*February 25, 2011*

**Science. 11th Grade Pre-AP Physics**

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Thank you so much! Could you please...

*February 25, 2011*

**Physics (Pre-AP)**

Hahah. Answering my own questions since I posted this twice accidentally and someone helped me out already. Here's my expansion on their answer, which I think is right. The positive ball would go first to the negatively charged plate. After which, it would hold a more ...

*February 25, 2011*

**Physics (Pre-AP)**

I have the same exact question as BAdams did in 2008! I was wondering if anyone could explain this in further detail. A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once...

*February 25, 2011*

**physics**

double the height.

*February 25, 2011*

**Please Help-English**

Proofread for spelling Capilization, commas error,any other mistakes, and correct them for me. To all ABC Internet Customers we have resolved the problem we were having with the Internet backbone for Southern Illinois. There was an NAP connection that was having trouble in ...

*February 24, 2011*

**English Now**

Correct any errors found.Thank you! Thank you for your request for a credit card with our store. Before we can issue you a credit card, we must ask you to furnish the information on the enclosed credit application. When we receive it we will process your application as quickly...

*February 24, 2011*

**Math**

Solve the linear programming problem by the method of corners. Minimize C = 3x + 7y subject to 4x + y ≥ 39 2x + y ≥ 29 x + 3y ≥ 42 x ≥ 0, y ≥

*February 23, 2011*

**Precalculus**

The directions are write the expression as the sine, coine, or tangent of an angle. (tan 25 degrees + tan 10 degrees) / [1 - [(tan 25 degrees)(tan 10 degrees)]]

*February 23, 2011*

**Chemistry**

What mass of Cr(OH)3 would be produced if 500ml of 0.250M KOH were added to a solution of CrCl3. I need to understand how to set this up, not just get the answer. I have the balanced equation figured out.

*February 21, 2011*

**english**

the most effective way to scan material for information is to

*February 20, 2011*

**physics**

W=F(cosx)d=mgh(potential energy) 25(cos0)(15)=375 mgh=(12.77)(9.8)h 375=125h 375/125=h h=3

*February 19, 2011*

**social studies**

responsibility to ensure the prosperity of the city rome

*February 17, 2011*

**ENGLISH**

OK WILL DO SO

*February 8, 2011*

**ENGLISH**

What do I do forr the title of a book because in the second paragraph American Literature Masterpieces is the title. Also pllease check for any other errors. Would you be interest in owning one of the most important books collection in our nation history? American Literature ...

*February 8, 2011*

**ENGLISH**

why would i use addition instead of edition. It is saying that the new edition will be shipped within the next ten days.

*February 8, 2011*

**ENGLISH**

Please make the correction so that my paper is error free. Dear Ms. Powell Thank you for your order. The enclosed invoice indicted that the shipment was sent under separate covers. This shipment includes all volumes except the final volume that is being represented. The new ...

*February 8, 2011*

**ENGLISH**

Thanks ms. SUE

*February 8, 2011*