Wednesday

October 22, 2014

October 22, 2014

Total # Posts: 1,264

**Calculus**

Consider the closed curve in the xy plane: 2x^2-2xy+y^3=14 a) show that dy/dx=2y-4x/3y^2-2x (I got this part) b) find equation lines to the curve when y=2 c) if the point (2.5, k) is on the curve, use part b to find the best approximation of the value of k
*October 20, 2014*

**Calculus**

Consider the closed curve in the day plane: 2x^2-2xy+y^3=14 a) show that dy/dx=2y-4x/3y^2-2x (I got this part) b) find equation lines to the curve when y=2 c) if the point (2.5, k) is on the curve, use part b to find the best approximation of the value of k
*October 20, 2014*

**Chemistry **

Calculate amount of 1 M acetic acid and 1M sodium acetate necessary to prepare 50 ml of a 0.15 M buffer at ph 4.80. (pka acetic acid =4.74)
*October 8, 2014*

**physics**

This question is also frustrating me. I just don't a single clue how to do it. A pilot must fly his plane north with a speed of 550 km/hr. A wind of 138 km/hr is blowing at an angle of 31 degrees N of E . What speed does the plane need to keep the desired ground velocity?
*October 8, 2014*

**physics**

A boat must head due north across a river channel that has a current of 9 km/hr towards the west. The boat is capable of traveling at 28 km/hr in still water. If the boat heads into the current to keep its true north course, what will be the resultant velocity of the boat? I&#...
*October 8, 2014*

**physics**

A bicyclist is pedaling along a road that is sloped upward with angle theta. At which of these road elevation angles must the bicycle wheels exert the greatest force back on the road to move the bicycle forward at the same constant speed?
*October 8, 2014*

**science**

The energy of a mole of photons with frequency 6.00x10^14Hz is what in kJ?
*September 24, 2014*

**Algebra**

Simplify (4-2i/-10+5i) x (3-i/-3+i)
*September 22, 2014*

**Algebra**

Solve -16t^2-8t=10 by completing the square
*September 22, 2014*

**Physics**

The velocity of the transverse waves produced by an earthquake is 6.13 km/s, while that of the longitudinal waves is 9.9919km/s. A seismograph records the arrival of the transverse waves 61.5 seconds after that of the longitudinal waves. How far away was the earthquake? ...
*September 21, 2014*

**eng 122**

Question 6. 6. When using the BEAM style of evaluation, which of the following is UNLIKELY to occur? (Points : 1) Writers will probably
*August 18, 2014*

**math**

what is the difference of complementary and supplementary angles if an acute angle measures 2a+3b
*July 4, 2014*

**english**

I still can`t think of a adjective compound that stands behind the noun... Is it possible that somethink like this exisct? because adjectives give nearer information to nouns and therefor they stand before them, or?
*July 3, 2014*

**english**

can you think of any other compound behind a noun that is written with a hyphen?
*July 3, 2014*

**english**

can you built a sentence where t-none stands after the noun?
*July 3, 2014*

**english**

I saw this page, too but wasn't sure wether it is a always the case that it isen't hypaneted. Dict.leocsaid that there are some cases where it is written with hyphen... Tbe explanation said something like if it is commen to write the word with hyphencit is writtencwoth...
*July 3, 2014*

**english**

Hey everybody, I have a question about compounds... I think I illustrate it to you best with an example: in "an off-campus apartment" off-campus is written with a hyphen BUT in "The apartment is off campus" we wirte it without an campus. why is it that way...
*July 3, 2014*

**chemistry**

What volume of a 0.610 M NH4I solution is required to react with 525 mL of a 0.300 M Pb(NO3)2 solution?
*June 23, 2014*

**chem**

how many NaOH are needed to to react with 98.1 mol AlO3
*June 22, 2014*

**accounting**

As part of their divorce agreement , Harry transfers to Mary, his former spouse, GM stock with a market value of 30000, Harry had $20000 invested in the stock. How does this transfer affect Harry and what is Mary’s basis in the stock.
*June 12, 2014*

**Algebra confused/Thank you**

The function h(x) =1/98x^2 describe the height of part of a roller coaster track where x is the horizontal distance in feet from the center of this section of the track the towers that support this part of the track are the same height and are 150ft apart what is the best ...
*June 7, 2014*

**British Literature**

Compare and contrast Samuel pepys's style in his diary entries and Jonathan swifts style in Gulliver's travels. Both John Bunyan and Jonathan swift criticized society. Compare and contrast John Bunyan style in the pilgrims progress and Jonathan swifts style in Gulliver...
*May 28, 2014*

**Business math**

The Treasury Department auctioned $21 billion in 3-month bills in denominations of $10,000 at a discount rate of 4.965%. What would be the effective rate of interest? (Use calendar year. Do not round intermediate calculations. Round your answer to the nearest hundredth ...
*April 7, 2014*

**business Math**

Please help? The Treasury Department auctioned $21 billion in 3-month bills in denominations of $10,000 at a discount rate of 4.965%. What would be the effective rate of interest? (Use calendar year. Do not round intermediate calculations. Round your answer to the nearest ...
*April 7, 2014*

**business Math**

Carl Sonntag wanted to compare what proceeds he would receive with a simple interest note versus a simple discount note. Both had the same terms: $19,500 at 8% for 2 years. Use ordinary interest as needed. a. Calculate the simple interest note proceeds. Can someone help me? ...
*April 7, 2014*

**business Math**

You were offered the opportunity to purchase either a simple interest note or a simple discount note with the following terms: $33,353 at 7% for 18 months. a. Calculate the effective interest rate. (Do not round intermediate calculations. Round your final answer to the ...
*April 7, 2014*

**Business Math**

Can someone help me with this problem: On September 5, Sheffield Company discounted at Sunshine Bank a $9,000 (maturity value), 120-day note dated June 5. Sunshineâ€™s discount rate was 9%. (Use Days in a year table.) What proceeds did Sheffield Company receive...
*April 7, 2014*

**business Math**

Abe Wolf bought a new kitchen set at Sears. Abe paid off the loan after 60 days with an interest charge of $9. If Sears charges 10% interest. What did Abe pay for the kitchen set? (Use 360 days a year. Do not round intermediate calculations.)
*April 3, 2014*

**business mat**

Abe Wolf bought a new kitchen set at Sears. Abe paid off the loan after 60 days with an interest charge of $9. If Sears charges 10% interest. What did Abe pay for the kitchen set? (Use 360 days a year. Do not round intermediate calculations.)
*April 2, 2014*

**business mat**

Carol Miller went to Europe and forgot to pay her $740 mortgage payment on her New Hampshire ski house. For her 59 days overdue on her payment, the bank charged her a penalty of $15. What was the rate of interest charged by the bank?
*April 2, 2014*

**business mat**

On September 14, Jennifer Rick went to Park Bank to borrow $2,500 at formula9.mml interest. Jennifer plans to repay the loan on January 27. Assume the loan is on ordinary interest. (Use Days in a year table.) a. What interest will Jennifer owe on January 27? (Do not round ...
*April 2, 2014*

**business Math**

Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115. What is the percent of interest paid on this loan? (Do not round intermediate calculations. Round your answer to the nearest whole percent.)
*April 2, 2014*

**Business Math**

Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,307 interest on $45,000 at 4.0%. What was the time, using exact interest? (Do not round intermediate calculations. Round up your answer to the nearest day.) Please help!
*April 2, 2014*

**math angles**

thank you ms. sue
*April 1, 2014*

**Calculus **

You are given a piece of sheet metal that is twice as long as it is wide an has an area of 800m^2. Find the dimensions of the rectangular box that would contain a max volume if it were constructed from this piece of metal by cutting out squares of equal area at all four ...
*March 26, 2014*

**english**

Identify the number of independent and subordinate clauses in the following group of words. If you could come in on Sunday, that would be great
*March 25, 2014*

**Physics**

You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass m is fired into a block of mass M. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal spring whose ...
*March 23, 2014*

**english**

17. In which sentence is the word but used as a preposition? A. John liked baseball but not football. B. We would like to visit the Grand Canyon, but our vacation time is up. C. Children should be seen but not heard. D. None but the brave shall enter in.
*March 21, 2014*

**probability**

a multiple choice test consists of 8 questions, each with 4 possible answers but only one of which is correct.what is the probability that an unprepared student will, by chance, get, a. all correct answers, b. exactly 5 correct answers, c. at most 4 correct answers, d. at most...
*March 12, 2014*

**probability and statistics**

a multiple choice test onsists of 8 questions, each with 4 possible answers but only one of which is correct.what is the probability that an unprepared student will, by chance, get, a. all correct answers, b. exactly 5 correct answers, c. at most 4 correct answers, d. at most ...
*March 12, 2014*

**URGENT physics**

The escape velocity of a bullet from the surface of planet Y is 1695 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.37 times that of Y, and its radius is 0.887 times the radius of Y (in m/s).
*March 11, 2014*

**URGENT physics**

M1 is a spherical mass (38.6 kg) at the origin. M2 is also a spherical mass (10.3 kg) and is located on the x-axis at x = 59.8 m. At what value of x would a third mass with a 20.0 kg mass experience no net gravitational force due to M1 and M2?
*March 11, 2014*

**physics**

The escape velocity of a bullet from the surface of planet Y is 1695 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.37 times that of Y, and its radius is 0.887 times the radius of Y (in m/s).
*March 11, 2014*

**physics**

Find the speed of a satellite in a circular orbit around the earth with a radius 2.69 times the mean radius of the earth; Radius Earth= 6.37E+3km; Mass Earth= 5.98E+24kg.
*March 11, 2014*

**physics**

M1 is a spherical mass (38.6 kg) at the origin. M2 is also a spherical mass (10.3 kg) and is located on the x-axis at x = 59.8 m. At what value of x would a third mass with a 20.0 kg mass experience no net gravitational force due to M1 and M2?
*March 11, 2014*

**physics**

The builders of the pyramids used a long ramp to lift 21000-kg (21-ton) blocks. If a block rose 1.0 m in height while traveling 21 m along the ramp’s surface, how much uphill force was needed to push it up the ramp at constant velocity?
*February 26, 2014*

**Physic**

a bullet is fired from at a shooting range. The bullet hits the ground after .32 seconds. How far did it travel horizontally and vertically in this time if it was fired at a velocity of 1100 m/s?
*February 11, 2014*

**English**

You're suppose to have answers there and then let Ms. Sue check it.
*January 30, 2014*

**Science**

Oh ok good. Thanx again!
*January 30, 2014*

**Science**

Does anybody know?
*January 30, 2014*

**Science**

Which of the following shows the correct order from coldest to hottest average annual temperature? a. Taiga-Tundra-Rainforest-Temperate forest b. Rainforest-Temperate forest-Taiga-Tundra c. Temperate forest-Taiga-Tundra-Rainforest d. Tundra-Taiga-Temperate forest-Rainforest*
*January 30, 2014*

**Science**

Yay! Thanx!
*January 30, 2014*

**Vocabulary**

8. Do you think the United States should take the___ in trying to bring about a compromise peace in the region? initiative
*January 24, 2014*

**English**

Did you eat my cookies while I was soundly sleeping? Can somebody help me with an interogative sentence with the same parts of speech as in the above sentence?
*January 23, 2014*

**Math!**

Please Please Please help me! I'm really behind and need to get this done and i'm really confused. 1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite ...
*December 16, 2013*

**magnetic field**

A straight copper wire that is 1 milimeter in diameter carries a current of 20 miliamps. Whas the magnitude of the largest magnetic field created by this wire in Tesla?
*December 16, 2013*

**Science!**

Whoops!! Can someone please check these and if they're wrong help me correct them? Thanks! :)
*December 6, 2013*

**Science! **

2. Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum? (1 point) X-rays infrared radio waves gamma rays*** 3. What is true about X-rays and microwaves? (1 point) X-rays have greater speed than microwaves. X-rays have greater amplitude ...
*December 6, 2013*

**Western Civ.**

Thank you! - Oh and by the way, I should probably let you know that I know that Napoleon was dead before WWI, but his actions caused a chain of reactions that led to WWI. I just needed to know what those actions were. Thanks, once again
*December 4, 2013*

**Western Civ.**

How did Napoleon cause WWI?
*December 4, 2013*

**COM321: Communication Theory **

Sue has given campus tours to prospective students for so long that she knows exactly what to do next. Her knowledge of the sequence of actions involved in giving a tour is
*December 2, 2013*

**History!!!!**

Please Please Please Check my answers!! 1. The leaders of the Virginia Company recruited more settlers and reorganized the colony. They allowed the new settlers to own land. Those settlers began to grow tobacco, a crop they learned about from the Indians. By 1612, Virginians ...
*November 7, 2013*

**Sowela**

Two objects of the same size fall from a tall building , object A=6kor B=12k which hits the ground first
*November 1, 2013*

**Science**

What if you quadruple the force and keep the mass constant, what will happen to the resulting acceleration?
*November 1, 2013*

**Mcneese**

What if you quadruple the force and keep the force constant what will happen to the resulting acceleration?
*November 1, 2013*

**Science**

Which statement is true regarding nuclear energy?
*October 27, 2013*

**business math**

10. Simms Trucking Company received an invoice showing 20 tires at $99.00 each, 16 tires at $120.00 each, and 12 tires at $150.00 each. Shipping terms are FOB shipping point. Freight is $350.00; trade discount is 12/4; and a cash discount of 2/10, n30 is offered. Assuming ...
*October 9, 2013*

**Science~ **

Please! Please! Please help me really quick! Pleae check my answers! 1. A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What determines how this ...
*October 8, 2013*

**chemistry**

A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.77 nm. It then gives off a photon having a wavelength of 1100 nm. What is the final state of the hydrogen atom
*October 2, 2013*

**History!!**

Thank you Mrs.Sue! :)
*October 1, 2013*

**History!!**

6,9,12,13
*October 1, 2013*

**History!!**

Here ya go! :) don't worry about the map. because i can't get it to copy! 1. Which of the following describes the role of an anthropologist? (1 point) a person who studies the origin and development of humans*** a person who searches for artifacts from prehistoric ...
*October 1, 2013*

**History!! **

PLEASE PLEASE PLEASE HELP ME!! <3 1. Which of the following describes the role of an anthropologist? (1 point) a person who studies the origin and development of humans*** a person who searches for artifacts from prehistoric people a person who excavates remains from early ...
*October 1, 2013*

**History!**

Nevermind! I got it now!!
*October 1, 2013*

**History!**

Please please help me! :(
*October 1, 2013*

**History! **

***IGNORE THE CHARTS/GRAPH QUESTIONS!! UNLESS YOU KNOW THE ANSWER OR HAVE SEEN THE CHARTS! THANKS!! :) *** For whom was South Carolina named? (1 point) Queen Caroline King Charles I**** King Charles II Queen Elizabeth 2. What is an important reason to study the history of a ...
*October 1, 2013*

**Math!**

Steve, I tried it that way but i never get the right answer! i'm still so confused.
*September 27, 2013*

**Math!**

Please help me! I do not under stand any of this! I know i should do it on my own. but please help me!! 1.(6.0 x 10^5) x (3.0 x 10^4) = (1 point) 18 x 10^20 18 x 10^9 1.8 x 10^20 1.8 x 10^10 2. (5 x 10^–2) ÷ (2 x 10^3) = (1 point) 2.5 x 10^-5 2.5 x 10^-1 25 x 10^1 ...
*September 27, 2013*

**Language Arts**

9. Read the following sentence: Brian, would you please take that binder to Mrs. Smith with the red cover? What is the best way to correct the misplaced modifier in the above sentence? (1 point) a. Brian, would you please take that binder with the red cover to Mrs. Smith? b....
*September 26, 2013*

**College Math**

Brandywine Homecare, a not for hire business, had revenues of $12 million in 2011. Expenses other than depreciation totaled 75 percent of revenues, and depreciation expense was $1.5 million. All revenues were collected in cash during the yar and all expenses other than ...
*June 30, 2013*

**Chemistry**

Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of Na+ given that the average density of sea water is 1.02 g/ml.
*June 12, 2013*

**240**

Design a series of three presentations/activities for parents and students at your school wherein cultural diversity is honored and respected. Your plan should include a purpose for each activity, a description of the target group you are addressing, an explanation of the ...
*June 10, 2013*

**math**

identify the variable, population and is this quantitative or qualitative The archaeological site of Tara is more than 4000 years old. Tradition states that Tara was the seat of the high kings of Ireland. Because of it's archaeological importance, Tara has received ...
*June 8, 2013*

**Spanish **

1)No tengo tiempo para arreglar mi cuarto. Voy a poner la ropa _____ de la cama. Nadie puede verla. A. encima B. debajo C. delante D.al lado I said B 2) He probado el cafè sòlo _______; no me gusto. A. una vez B. siempre C. nunca D. casi nunca I said A 3) ¿...
*May 26, 2013*

**physics**

thus far in the course we have ignored that on the earths surface an object must have a slightly unbalanced force to rotate with the earth, pretending that the normal force precisely balances the objects weight. A student with a mass of 65.0kg stands at the equator. The radius...
*May 14, 2013*

**physics**

the space shuttle typically orbits 400 km above the earths surface. The earth has a mass of 5.98 * 10^24 kg and a radius of 6380km. A) How much would a 2000 kg part for the space station weigh when it has been lifted to that orbit in the shuttles cargo bay? B)Use your result ...
*May 14, 2013*

**MATH**

if $250.00 IS INVESTED AT 6% COMPOUNDED MONTHLY WHAT IS THE AMOUNT AFTER 8YEARS
*May 3, 2013*

**Chemistry**

DrBob I wrote back and wanted to know if I did it right can you check my answers please
*April 30, 2013*

**Chemistry**

Consider 18.0 M H2SO4, if you need to make 250.0 mL of a 3.0 M solution of H2SO4, how would you do this? 18.0 M H2SO4 has a density of 1.84g/mL what is the molality of solution? Mass % of H2SO4 in the solution and the mol fraction of H2SO4 and water in the solution?
*April 30, 2013*

**chemistry**

#1 250mL x 3.0 M/18.0M = 41.67mL? #2 molality of solution??? Mass % 1764/1840x100= 95.87% Mol fraction...H2SO4. 18/22.2=.81 H2O 4.2/22.2=.18
*April 29, 2013*

**chemistry**

Consider 18.0 M H2SO4, if you need to make 250.0 mL of a 3.0 M solution of H2SO4, how would you do this? 18.0 M H2SO4 has a density of 1.84g/mL what is the molality of solution? Mass % of H2SO4 in the solution and the mol fraction of H2SO4 and water in the solution?
*April 29, 2013*

**Computer Programming**

Hello, Any help on the following problem would be greatly appreciated. The assignment is done with .java in eclipse. I have a class and a form with a Jlist, 2 text fields to enter the check amount and the ending Balance and a calulate button. I have some aspects working, but ...
*April 13, 2013*

**Accounting**

Basic NPV: No Salvage Value or Taxes Carrie Rushing is considering the purchase of a new production machine that costs $120,000. She has been told to expect decreased annual operating expenses of $40,000 for four years. At the end of the fourth year, the machine will have no ...
*April 13, 2013*

**Chemistry**

What kind of energy is primarily used to bring electricity to remote areas that are far from power lines? A. Kerosene B. Batteries C.Solar electric units D. Electrical network
*April 5, 2013*

**Physics**

An iron railroad track 1000 feet long is at a temperature of 0 oC. How much does it expand when heated to 33 oC?
*April 2, 2013*

**math**

thank you so much....what would be the domains of these though?
*March 26, 2013*

**math**

for the given functions f and g, find the specified value of the following functions and state the domain of each one. f(x)=2+3/x; g(x)=3/x a.(f-g)(2)= b.(f/g)(3)= how do I do this? I need help! it throws me off because of it being in fraction form.
*March 26, 2013*

**math**

thanks alot
*March 23, 2013*

**math**

consider the functions f(x)=x^3-2 and g(x)=3 sqrt x+2: a. find f(g(x)) b. find g(f(x)) c. determine whether the functions f and g are inverse of each other. I have no clue where to even begin!
*March 23, 2013*

**math**

x-(-7)=4
*March 21, 2013*

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