Thursday

October 30, 2014

October 30, 2014

Total # Posts: 144

**Calculus**

Derivative of the implicit Function: arctan(x^5y)=xy^5 Here is where I am at. I am pretty frustrated: arctan(x^5y)-xy^5=0 1/1+(x^5y)^2 * (d/dx(x^5)*y+x^5*d/dx(y))-(d/dx(x)*y^5+x*d/dx(y^5))=0 1/(1+x^5y)^2 * (5x^4y+x^5dy/dx) - (y^5+x^5y^4dy/dx) (5x^4y)/[(1+x^5y)^2] + (x^5dy/dx...
*October 16, 2014*

**math**

5hexponent2/5 =3645/5 find the value of h
*September 20, 2014*

**math**

Write an equation which models how old in years each of you will be when you are three times as old as the younger person use age 10 and 48?
*September 6, 2014*

**computer literacy**

booles theories of ligic set the foundation for what aspect of computing today
*April 27, 2014*

**physics**

A stationary speaker is emitting a sound of frequency 1330 Hz. The air has a temperature of ^oF. Taking right to be positive, a person is moving toward the source (to the left) at 8.2 \frac{m}{s}. The person will hear a frequency of ... f =
*April 21, 2014*

**math lit,business studies,accounting and computer **

Can I be an accountant when doing these subjects?
*April 4, 2014*

**chemistry**

what is the total mass of Rn-222 remaining in an original 160-mg sample of Rn-222 after 19.1 days?
*March 31, 2014*

**physics**

A ball is projected upwards from a platform 8m above the ground,with an initial velocity of 3m/s.How long does it take for the ball to reach the ground.
*March 10, 2014*

**Algebra**

Please help me find the value of the annuity for the following: a1= $8000, I=0.06, n=10 $8,000 invested for 10 years at 8% compounded annually$8,000 invested for 10 years at 0.06% n = 10 Thank you.
*December 8, 2013*

**math models**

If $3800 is invested in a savings account for which interest is compounded quarterly, and if the $3800 turns into $4300 in 2 years, what is the interest rate of the savings account?
*October 12, 2013*

**Math 140**

To help pay for a class trip at the end of the senior year, the junior class at a high school invests $1800 from a fund-raiser in a 18-month CD paying 2.6% interest compound monthly. Determine the amount the class will receive when it cashes in the CD after 18 months.
*July 19, 2013*

**s**

According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from ...
*June 3, 2013*

**Math**

3765
*May 21, 2013*

**Life orientation**

What, according to the BCEA with regard to the contraventions in work place?
*March 13, 2013*

**devry math**

I am really have a hard time I need help. Prime factorization of 343
*November 3, 2012*

**Statistics**

A standard deck of cards contains 52 cards. Of these, 12 are face cards (kings, queens, and jacks), 13 are hearts, 13 are clubs, and 3 of these are both hearts and face cards. A card is drawn. What is the probability that the card is either a jack of hearts or a queen of clubs?
*September 18, 2012*

**Chemistry hnrs**

what is the electron configuration of vanadium?
*September 14, 2012*

**Science 2**

How does TCDD act as an endocrine disruptor?
*August 13, 2012*

**Science**

What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people?
*August 13, 2012*

**Science**

what does LD50 stand for in science terms?
*August 13, 2012*

**Science**

What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people?
*August 13, 2012*

**Science Biology**

What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people?
*August 10, 2012*

**science**

what are atoms
*July 25, 2012*

**geometry**

An open rectangular glass tank with a horizontal base PQRS measures 80 cm by 50 cm by 34 cm. 110 liters of water is poured into the tank. v The tank is tilted towards edge PQ until the water just reaches the edge TU. w Calculate the value of d. s
*June 19, 2012*

**Classical Mythology**

Sorry, forgot to write that down. The Cremaster Cycle
*May 10, 2012*

**Classical Mythology**

Throughout this film, characters appear, or things happen, that are reminiscent of people or events in classical mythology. What do they make you think of? Pick 4-5 things (people, incidents events, costumes, whater) and explain waht they remind you of from classical mythology...
*May 10, 2012*

**Calc**

radio active radium(226)
*April 15, 2012*

**Calc**

Radioactive radium () has a half-life of 1599 years. What percent of a given amount will remain after years?
*April 15, 2012*

**Physical science**

The engine of a car is being lifted out of the car by using a pulley system. The weight of the engine is 8000N. Use a scale diagram to determine the horizontal force, F1 that a mechanic has to use to hold the engine in such a position that the rope makes an angle of 30degrees ...
*March 7, 2012*

**Thesis statement**

I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help!
*March 7, 2012*

**Thesis statement**

I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help!
*March 7, 2012*

**chemisty**

14KMnO4+4C3H5(OH)3----->7K2CO3+7Mn2O3+5CO3+16H2O how to do it help me if you can I spend days to find this but I couldnt please help mee.....
*January 6, 2012*

**Algebra: Statistics**

Five years ago, you bought a house for $151,000, with a down payment of $30, 000, which meant you took out a loan for $121,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information. ...
*December 14, 2011*

**Intermediate algebra**

The current in a typical mississippi river shipping route flows at a rate of 4mph. In order for a barge to travel 24mi upriver and then return in a total of 5hr, aproximately how fast must the barge be able to travel in still water?
*November 11, 2011*

**College Algebra**

Evaluate the function y=2.55^(x+1) at the value x=1.83
*November 4, 2011*

**math**

what is 216.3 divided by 10.5? please show the work
*September 21, 2011*

**Chemisty**

Consider a hydrogen atom that goes from the n = 2 to the n = 1 state. (a) Calculate the wavelength, in nm, of the photon emitted. (b) What part of the electromagnetic spectrum is it?
*September 20, 2011*

**Chemistry**

What is the frequency of light having a wavelength of 5.6 micrometers?
*September 20, 2011*

**science**

scientist do their experimental test more than once so they can reduce the effects of chance errors this is called conducting what
*August 31, 2011*

**Physics**

A runner runs around a circular track with a radius of 50m.if he runs half way round the track from a to b.am i correct if i say his distance is 100m?
*August 17, 2011*

**Chemistry**

4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks
*July 17, 2011*

**Chemistry**

In this balanced equation 4Al + 3O2 = 2Al2O3. When 0.54 mole aluminum is reacted in a closed container with 7.80 g oxygen, how many grams of aluminum oxide can form. Please show steps to work out. Thanks
*July 16, 2011*

**Global Help!**

oh ok thanks again good night
*May 26, 2011*

**Global Help!**

Thanks! i have one more question that i cant seem to find: how did the first Global Age affect culture? should i just ask my Global teacher for help and leave it blank til then?
*May 26, 2011*

**Global Help!**

is this right?: socialy- Native Americans were at the bottom of the social pyramid and the fully spanish were at the top. political- the spanish were allowed to force Native Americans to work for them economic- trade was great but many people died and .... i need help with ...
*May 26, 2011*

**Global Help!**

Describe social, political and economic aspects of spanish rule in the Americas. I cant find this answer anywhere help please!!
*May 26, 2011*

**Social Studies**

1. Describe social, political and economic aspects of spanish rule in the Americas. 2. How did the first Global Age affect culture? 3. Why did the slave trade prosper? what effects did it have on Africa? 4. How did the colonization of the Americas affect Europe?
*May 26, 2011*

**Social Studies**

oh okay sorry.. so if I answer them myself may you tell me of they are right?
*May 26, 2011*

**Social Studies**

1. describe the achievements of the Maya, Inca, and Aztec. 2. what were the major similarities and differences between the Maya, Inca, and Aztec? 3. why did the Europeans begin to explore? 4. How did the Spanish conquer the Aztec and Incan empires?
*May 26, 2011*

**algebra**

Annual profit in thousands of dollars is given by the function,p(x)=200square x-3 +10,000,where x is the number of items sold in thousands, x less than 3. describe the meaning of the numbers 3 and 10,000 in the formula. find the profit for 5 different values of x. graph the ...
*May 21, 2011*

**Chemistry**

yes, each half-cell contains 1.00 L of solution so that is the volume thank you!
*April 28, 2011*

**Chemistry**

A zinc-copper battery is constructed as follows at 25°C. Zn|Zn^2+ (0.15 M)||Cu2+(3.00 M)|Cu The mass of each electrode is 200. g. a) Calculate the cell potential when this battery is first connected. - i got this to be 1.14V b.) Calculate the cell potential after 10.0 A of...
*April 28, 2011*

**chemistry**

our lab experiment was Isolationa nd Identification of the Major Constituent of Clove Oil. We know the major component is Eugenol, but our professor wants us to write the equations for the extraction of eugenol from the distillate with dichloromethane and then the equation for...
*April 20, 2011*

**social studies **

Thank you so much!!
*April 3, 2011*

**social studies **

No they're not in the book because she discussed these questions in class. the class was suppossed to take notes on what she was saying. We barely use textbooks because she plans lessons and we have to go by what she says. I missed a couple of her classes. can you with any...
*April 3, 2011*

**social studies **

I have a test on this tomorrow and I can't seem to find the answers to these questions
*April 3, 2011*

**social studies **

Help! 1. Describe the social strusture of feudal society. 2. what were the similarities and differences between feudalism in Euope and Japan? 3. How did the Roman Catholic Church influence social, political, and economic life during the Middle Ages? 4. How did England, France ...
*April 3, 2011*

**Europe**

how did europe's geography affect its development?
*April 3, 2011*

**epidemiology**

For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department. You are not sure ...
*March 30, 2011*

**strayer**

For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department. You are not sure ...
*March 30, 2011*

**math**

Suppose the 435 members of the house of representatives are placed on committees consisting of more than 2 members but fewer than 30 member of members and each member is to be on one committees. Each committee is to have an equal number of members and each member is to be on ...
*March 12, 2011*

**5th grade**

what is 9 /24794
*November 29, 2010*

**Cognitive psycology**

by giving a model of answers
*November 20, 2010*

**IT/236**

List three things that a Web designer must consider and understand about the purpose or target audience prior to site development. Why do you feel each of these is important to a successful plan?
*November 1, 2010*

**math**

Brenda's dog is 5 times as long as Hugh's dog. Together the dogs are 48 inches long.How many inches long is Hugh's dog?
*October 14, 2010*

**Math**

Express the quantified statement in an equivalent way. Some students are bored. Would it be Not all students are bored?
*October 4, 2010*

**math**

Using the Octagonal formula how do you get the 6th octagonal number 96?
*October 4, 2010*

**college chemistry**

How much heat is needed to convert 2.00 kg of liquid ammonia at -40.0 oC to its vapor at -11.0 oC? The specific heat of liquid ammonia, NH3 (l), is 4.70 J/g-K and that of the vapor NH3 (g), is 2.20 J/g-K. The enthalpy of vaporization of ammonia is 23.3 kJ/mol and its boiling ...
*May 25, 2010*

**biology**

Thank you!
*May 7, 2010*

**biology**

A group of specialized cells that transport fluids and nutrients is called a. a multicellular autotroph b. a methanogen c. an aggregation d. vascular tissue A?
*May 7, 2010*

**biology**

Thank you!
*May 7, 2010*

**biology**

Which of the following are NOT used to classify kingdoms of organisms? a. complexity of the organism b. invertebrate or vertebrate c. method of obtaining nutrition d. type of cell that makes up the organism D?
*May 7, 2010*

**math 4th grade**

You see that all the numerators (top numbers) are the same. The bottom numbers (denominators) tell us how big the pieces are. The larger the denominator, the smaller the pieces. So if the top numbers are the same, then the fraction with the biggest bottom number is the ...
*April 13, 2010*

**MATH**

The 6th octagonal numbr is 96. Verify this fact using the formula for O n.
*April 2, 2010*

**science**

how does air pressure affects the outer space
*March 6, 2010*

**chemistry**

What information does this value of Kc indicate with regard to the amount of NO(g)in the equilibrium mixture at a 25 degrees celcuis?THe cointainer is heated and the system reacheas a new equilibruim at 2500 degrees celcuis at this temperature there 0,4 moles of NO(g)present.
*March 3, 2010*

**7th grade math**

How do you figure out the place value of the stem and leaf of a stem-and-leaf plot???????????????
*February 26, 2010*

**Conflict Management Communications**

I would say yes. Your thoughts?
*February 20, 2010*

**Conflict Management Communications**

These are all good ones! What about terrorists and hardened criminals?
*February 20, 2010*

**Conflict Management Communications**

Provide 2 examples of passive aggressive societal groups and behaviors. I thought the KKK would be one good example, any other thoughts would be most appreciated! Thank yoU! :)
*February 20, 2010*

**7th Grade Literacy**

I think a class president needs to be twustworthy, responsible for his/her actions, and honest but thats my opion
*February 17, 2010*

**Language Studies**

I suppose these work. I think I am putting more thought than necessary into this question. Thanks for your insight!
*January 29, 2010*

**Language Studies**

What are some ways that language can be used to perform the act of giving someone a warning?
*January 29, 2010*

**Math**

If a car is driven 372 miles in 6.5 hours, then what is the average number of miles per hour?
*November 16, 2009*

**Quantitative Methods of Business**

Karl's monthly expenses are $3,000. Of this 1/4 is for the mortgage payment, 1/8 is for credit cards, 2/5 if for the car payment, and the rest is for food and miscellaneous expenses. What is the amount of Karl's car payment?
*October 26, 2009*

**Media Law**

What are the most pressing challenges facing U.S. copyright enforcement interests today in the context of the proliferation of overseas, especially third-world copyright piracy?
*October 7, 2009*

**Writing in Math**

Every digit in 8,999 is greater ,than any digit in 24,005 is greater than 8,999.
*September 30, 2009*

**Algebra Help**

Thanks! You have been a BIG help! I will do that!
*August 5, 2009*

**Algebra Help**

Thank you this really helps! So I got Exponential form is 2^-3 = 1/8 and To solve x = -3 So this is all of it?
*August 5, 2009*

**Algebra Help**

Now what about the Exponential form ? 2^-3 = 1/8 This isn't correct? If not then how do i show Let x = log_2 1/8 in exponential form?
*August 5, 2009*

**Algebra Help**

Solve for x i got, the exponential is the problem for me...Here is what i got for x. To Solve: 1/8=8^-1 8=2^3 1/8=2^3^-1=8^-1 =2^-3 Log_2 1/8 = log_2 2^-3 =-3log_2 2 x =-3 To Check: 2^x=1/8= 2^-3 x=-3
*August 5, 2009*

**Algebra Help**

x = log_ 2 2^-3 ? I am lost now. I really thought I had it from what I just posted. Exponential form is 2^-3 = 1/8 This isn't correct? To Check: 2^-3=1/2^3=1/8
*August 5, 2009*

**Algebra Help**

Let x = log_2 1/8 Write the exponential form of the equation and solve the equation for x. Does this work? Thanks! Exponential form is 2^-3=1/8 To Check: 2^-3=1/2^3=1/8
*August 5, 2009*

**Algebra**

Does this work? Thanks! Exponential form is 2^-3=1/8 To Check: 2^-3=1/2^3=1/8
*August 5, 2009*

**Algebra**

2x = 2^log2(1/8) 2x = (1/8) Are these acceptable answers?
*August 5, 2009*

**Algebra**

Let x = log_2 1/8 Write the exponential form of the equation and solve the equation for x.
*August 5, 2009*

**Algebra**

Suppose A is the amount borrowed, r is the interest rate (in decimal form), and m is the total number of monthly payments. Let w = (r)/(12) Then the formula to determine the monthly payment amount for a loan is given by (Aw)/1-(1)/(1+w)^m Suppose Alice buys a car and obtains a...
*July 31, 2009*

**Algebra**

I figured 4*4 = 16. This is not right is it?
*July 7, 2009*

**Algebra**

Would this be an appropriate answer for b? x= 4+3i/2, 4-3i/2
*July 7, 2009*

**Algebra**

Consider the equation 4x^2 – 16x + 25 = 0. (a) Show how to compute the discriminant, b^2 – 4ac, and then state whether there is one real-number solution, two different real-number solutions, or two different imaginary-number solutions. (b) Use the quadratic formula ...
*July 7, 2009*