Monday

September 22, 2014

September 22, 2014

Total # Posts: 3,162

**Physics**

A 2.40 kg mass, m, on a frictionless table is moving in a circle with radius 0.500 m at a constant speed. m is attached to a 5.70 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest
*September 30, 2011*

**C#**

Write a program that displays your initials in a pattern on the screen. Compose each initial with six lines of smaller initials, as the following example: J FFFFFF J F J FFF J F J J F JJJJJJ F
*September 29, 2011*

**Programming using C#**

Write a program that displays your initials in a pattern on the screen. Compose each initial with six lines of smaller initials, as the following example: J FFFFFF J F J FFF J F J J F JJJJJJ F
*September 28, 2011*

**geometry**

What is the perimeter of PQR with vertices P(–2, 9), Q(7, –3), and R(–2, –3) in the coordinate plane?
*September 22, 2011*

**Gov**

what was the overall problem with the Articles of Con.? give 4 examples that illustrate the problem
*September 17, 2011*

**Math**

A sofa and chair have a total price of $ 600 not including tax. The tax rate is 6.25 %. Find the tax on the sofa if the price of the chair is $200. (a)$ 625 (b)$ 637.50 (c)$ 25 (d)$ 612.50 (e)$ 47.50
*September 15, 2011*

**Marketing**

Explain in detail how you would use the new-product development process if you were thinking about offering some kind of summer service to residents in a beach resort town
*September 14, 2011*

**math**

51200 customers customers decline each year by 3.8% what is the approx # of cust after 14 years
*September 14, 2011*

**science**

I have a question I was wondering if someone could give me a link or idea how to find the answer: What structure on HIV makes it necessary for the virus to be transmitted in moist secretions?
*September 13, 2011*

**math**

polynomials (3x + 1)(2x - 5)
*September 13, 2011*

**spanish/chech**

translate to spanish our father's office -la oficina de nuetro padre 2-translate the possesine adjective in parentheses into spanish -su escuela(their) can you check my answer thank you
*September 13, 2011*

**spanish/check**

translate to spanish our father's office -la oficina de nuetro padre 2-translate the possesine adjective in parentheses into spanish -su escuela(their) can you check my answer thank you
*September 13, 2011*

**Chemistry**

Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.890-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
*September 13, 2011*

**Chemistry**

Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.890-g sample of Mg metal is added to 125.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
*September 13, 2011*

**Algebra**

The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in what relation not being a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5), (2, 3)}
*September 11, 2011*

**calculus**

given that f(x)=x^11h(x) h(-1)=4 h'(-1)=7 find f'(-1)
*September 10, 2011*

**chemistry**

The vapor pressure of water at 25.0 C is 23.8 mm Hg. If 250. mL of water is placed in a chamber with a volume of 1.00 cubic meters, how many mL of water will evaporate
*September 6, 2011*

**algebra**

amy paid 78.42 for a pair of running shoes during a 25% off sale what was the regular price?
*September 6, 2011*

**world history**

Which civilizations were likely to have contact with each other?Why? _answer: Indus valley and Shang because they are close geographically B)Between which lines of latitude did early civilizations develop? Why? _Between lines of 20N and 40N. Because at this latittude they have...
*September 5, 2011*

**algebra**

(5x-4)/3=12
*September 4, 2011*

**Physics**

Suppose you are given that z = c x2 y4 where c is some number. For a particular value of c, x and y, z is equal to 7. Suppose x is decreased by a factor of 2.6 and y is increased by a factor 4. What is the new value of z?
*September 1, 2011*

**Calculus**

Infinite series question. an=2+(0.99)^n Converge or Diverge?
*August 31, 2011*

**geometry**

m<AOC=7x-2, m<DOC= 2x+8,m<EOD=27
*August 30, 2011*

**Math**

2 minutes
*August 29, 2011*

**psychology**

Much of brain research you have read about in this chapter was carried out using animals. In many studies, it is necessary to euthanize animals to study their brain tissue directly. Many people object to this practice, but others say it is justified because it advances ...
*August 29, 2011*

**Math**

Write 0.2 in the form a/b using integers to shoe that it is a rational number
*August 28, 2011*

**Math Place Value**

Please!!! Need help with this question asap!!!
*August 22, 2011*

**Math**

Sue's friens Kat has these numbers 89378, 42327,49734 and teacher has shown a 3, how many points will Kat have? What digit does she hope teacher will pull next week so she has the highest score?
*August 22, 2011*

**Chem**

Consider the balanced chemical equation: 3Sr(OH)2(aq) + 2H3PO4(aq) → Sr3(PO4)2(s) + 6H2O(l). How many moles of Sr(OH)2 remain if 0.10 mol of H3PO4 react with 0.40 mol of Sr(OH)2?
*August 20, 2011*

**english**

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events. When comparing, ...
*August 14, 2011*

**statistics**

A simple random sample of FICO credit rating scores is listed below: 714 751 664 789 818 779 698 836 753 834 693 802 Find range, variance, and standard deviation.
*August 7, 2011*

**University of Phoenix**

inventory turnover ratio analysis for Dell Inc.FINANCIAL STATEMENTS April 29,2011 and January 28,2011
*August 5, 2011*

**Math**

What is the answer to the below math problem? 78000 x (1.7% x 20 years) + (1% x 10 years)
*July 26, 2011*

**Basic Statistics **

A population of 200 voters contains 52 Republicans, 128 Democrats, and 20 independents and members of other parties. A simple random sample of 20 voters will be drawn from this population. The expected number of Republicans in the sample is ______ ? The standard error of the ...
*July 25, 2011*

**4th grade math**

40
*July 25, 2011*

**Basic Statistics **

A population of 300 voters contains 147 Republicans, 135 Democrats, and 18 independents and members of other parties. A simple random sample of 30 voters will be drawn from this population. Consider repeatedly drawing simple random samples of size 30 from the population (...
*July 24, 2011*

**statistics**

Two dice are rolled and two fair coins are tossed. Let X be the sum of the number of spots that show on the top faces of the dice and the number of coins that land heads up. The expected value of X is _____ .
*July 22, 2011*

**statistics**

Two dice are rolled and two fair coins are tossed. Let X be the sum of the number of spots that show on the top faces of the dice and the number of coins that land heads up. The expected value of X is _____ .
*July 22, 2011*

**intermediate algebra**

Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3
*July 22, 2011*

**algebra**

this could be a start if the website could find its file:o(
*July 21, 2011*

**Math**

A cylinder is inscribed in a right circular cone of height 8 and radius (at the base) equal to 2.5. What are the dimensions of such a cylinder which has maximum volume? What is the radius, and height?
*July 20, 2011*

**intermediate algebra**

find the product.(7x^2-y)(7x^2+y)
*July 20, 2011*

**intermediate algebra**

find the product. (5x-6y)(5x+6y)
*July 20, 2011*

**intermediate algebra**

Find the product. -9y^2(y^4+8y^3-y^2+8y+7)
*July 20, 2011*

**intermediate algebra**

plz help I'm lost word problems
*July 19, 2011*

**intermediate algebra**

Essay. Show all work. find the quotient: 49a^2-b^2 --------- 7a-b
*July 19, 2011*

**intermediate algebra**

Essay. Show all work. find the quotient: y^4+3y-1 -------- y^2-3
*July 19, 2011*

**physics**

Five boxes, each having weigh 100N, are stacked up. The bottom box is the fith from the top. What is the magnitude of the normal drove upward exerted by the fourth box from the top on the third box from the top
*July 19, 2011*

**algebra**

Essay. Show all work. Find the following quotient: 36x^2-49y^2 ----------- 6x+7y
*July 18, 2011*

**algebra**

short answer. find the following quotient: x^2-36 ------ x+6
*July 18, 2011*

**algebra**

find the following product:(x-3)(x+3)
*July 18, 2011*

**algebra**

short answer. find the following product -7z(-8z^3+3z^2+8)
*July 18, 2011*

**algebra**

find the following product: 5x^2y(-4x^5y^4)
*July 18, 2011*

**algebra**

One of the authors of this text is moderately active, weighs 87kg, is 185cm tall and is 59 yr old. what are his daily caloric needs?
*July 18, 2011*

**algebra**

Essay; show all work. Find the product: (1/7x^2-2/5)(1/2x-1/2) any help would be appreciated
*July 17, 2011*

**chemistry**

If I have 30 glucose molecules, how many CO2 molecules will that produce?
*July 14, 2011*

**chemistry**

if someone has a blood sugar number of 200 after 12 hours of fasting, what would you tell the patient?
*July 14, 2011*

**chemistry**

if a sample of alloy containing magnesium and metal that doesn't react wtih hydrochloric acid are reacted, how much heat would be evolved from a 5 gram sample that is 30% magnesium?
*July 13, 2011*

**statistic**

Identify the level of measurement for the following? 1)What state/country were you born? 2)What is the temperature outside rigth now? 3)Rank all of the courses you are currently.The class you look most forward to taking will be rank one ,next two ,and so on . what is the rank ...
*July 13, 2011*

**statistic**

Identify the level of measurement for the following? How long does it take you to drive to the school on average ( to the nearest minute)
*July 12, 2011*

**math**

thank you. It worked
*July 11, 2011*

**math**

the computer said my answer was correct like this (a/b)+(1/d)=(1/c) but I need to do the reciprocal of (1/c) and I dont know how that will look in the equation
*July 11, 2011*

**math**

I need help with rearranging this equation to isolate c a=b((1/c)-(1/d)) I got this (a/b)+(1/d)=(1/c) but I dont know the last step with the reciprocal. Could someone please help, thank you
*July 11, 2011*

**Math**

is it then a=(ef/d)-(b/c) ?
*July 11, 2011*

**Math**

Hi I need help with this question. Rearrange this equation to isolate a ((a+(b/c))(d/e)=f I know you first should divide both sides by (d/e) Can anyone help, thanks
*July 11, 2011*

**chemistry**

Why can’t ethyne be turned into trans or cis isomers?
*July 10, 2011*

**physics**

thank you!
*July 8, 2011*

**physics**

A car traveling 95 km/h slows down at a constant 0.80 m/s^2 just by "letting up on the gas. A) Calculate the distance it travels during the second second. B) Calculate the distance it travels during ninth second.
*July 8, 2011*

**Chemistry**

Compare the water solubility and expected BP of propanol, propyl acetate, and acetic acid. Briefly explain why the difference are evident. Thanks!!
*July 7, 2011*

**stats**

If other factors are held constant, how does increasing the sample variance affect the value of the independent-measures t statistic and the likelihood of rejecting the null hypothesis?
*July 3, 2011*

**Physics**

A rectangular coil of 70 turns, dimensions 0.100 m by 0.200 m and total resistance 10.0 ohms, rotates with angular speed 32.0 rad/s about the y axis in a region where a 1.00 T magnetic field is directed along the x axis. The rotation is initiated so that the plane of the coil ...
*July 2, 2011*

**Physics**

How much heat must be transferred to each kilogram of aluminum to bring it to its melting point, 660°C, from room temperature, 20°C?
*June 29, 2011*

**albebra**

Thanks drwls, I knew the answer, I just don know how to properly express it in an algebraic formula? Thanks
*June 29, 2011*

**albebra**

The answer is the easy part, but how do I express it in an algebraic formula? Ken purchased an investment property for 245,000 and sold it at a 12% loss. How much did he sell it for?
*June 29, 2011*

**trig **

A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
*June 28, 2011*

**Math**

Find the probability of the following if there are 30 students in the class who have been numbered and you use a calculator to generate random numbers between 1 and 30. A number less than 10.
*June 28, 2011*

**overton high**

two crates weigh 9kg and 14kg with a force of 195 newtons. what is the acceleratio?
*June 26, 2011*

**statistics**

Find the value of t(10, 0.01)
*June 22, 2011*

**math**

A cube has 6 sides. Each side has a number from 1 to 6. Each number is used only once.
*June 18, 2011*

**persuasive essay **

need help checking grammar errors please and how good is it? Credits cards have some positive value to them from being able to make big purchases, to making an everyday purchase. This reminds me of a quote said by John Mc Donald’s “Everything that has a positive side...
*June 17, 2011*

**grammar**

5.The external oblique fascia was then incised, and the incision was lengthened in the direction of the fibers. pls let me know all verbs in this sentence.
*June 15, 2011*

**calculus**

Differentiate. sqrt((6x^2 + 5x + 1)^3)
*June 14, 2011*

**calculus**

Differentiate. sqrt((6x^2 + 5x + 1)^3)
*June 14, 2011*

**Algebra**

Given a= -3 and b=4 and c= -5, evaluate |c-a-b|
*June 13, 2011*

**Trig**

URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x-1+Arctan x-1/x)
*June 11, 2011*

**Trig**

give the value of tan(arctan x+1/x-1+arctanx-1/x)
*June 9, 2011*

**algebra/trig**

1. find domain f(x)=(sqrt(x^(2)-9))
*June 8, 2011*

**algebra/trig**

1.Find the domain f(x)=ã(x^(2)-9) 2. Find all six trig functions for (-3,4)
*June 8, 2011*

**math**

Suppose the cost of producing x items is given by C(x)=1000-x^3, and the revenue made on the sale of x-items is R(x)=100x-10x^2. Find the number of items which serves as a break-even point.
*June 6, 2011*

**math**

John owns a hotdog stand. He has found that his profit is represented by the equation P(x)=x^2 + 12x + 46, where x is the number of hotdogs. What is the most he can earn?
*June 6, 2011*

**Algebra**

x= } 1/ã2
*May 31, 2011*

**trig**

y = sin (3x-2pi)
*May 30, 2011*

**eco**

A?
*May 26, 2011*

**HISTORY**

In the eleventh and twelfth centuries, the Song Dynasty had all of the following characteristics except equal status for men and women?
*May 26, 2011*

**History**

Why was president Johnson impeached and do you think it was the right action to take? * I have to write a paragraph on this and was wondering if someone could explain it a little better to me because from what im reading it says the impeachment didnt work because they didnt ...
*May 24, 2011*

**med**

Making use of the following terms, write a fictitious medical report of about two paragraphs describing a dermatologic condition or disease. Focus the report on the onset, progression, location, and etiology of the condition or disease, and the treatment parameters. All terms ...
*May 23, 2011*

**chem.**

What is an ionic substance made from?
*May 22, 2011*

**chem.**

If 130.0 g Zn reacts, what mass of ZnCL2 are produced?
*May 22, 2011*

**biology/honors**

Charle Darwin made theory of natural selection but couldnt explain why there is variation within populations. Explain two reasons why there is variation within population ? PLEASE help me answer this question is for my test
*May 20, 2011*

**biology/honors**

How does genetic variation lead to speciation ? Can you help me answer this question please for the review test ? thank you .
*May 19, 2011*

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