# Questions Asked onSeptember 13, 2009

1. ## MATHS

The recipe for mint chocolate ice cream requires 2 1/4 cups of creams for 5 people. You need ice cream for 8 people. How much cream will you need? Please explain,thanks.

2. ## physics

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a (vector) = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the x component of velocity as a function of time t. Determine the y component of

3. ## Chemistry

Vitamin B12, cyanocobalamin, is essential for human nutrition. It is concentrated in animal tissue but not in higher plants. Although nutritional requirements for the vitamin are quite low, people who abstain completely from animal products may develop a

4. ## chemistry.

How many sulfur atoms are there in 25 molecules of C4H4S2?

5. ## algebra 1

Charles wants to build a vegetable garden such that three sides of the garden are fenced and the fourth side of the garden will be the existing back fence. He has 30 feet of fencing available. Find the dimensions of the garden that will produce the maximum

6. ## Physics

An electron's position is given by r = 2.00t i - 7.00t2 j + 5.00 k, with t in seconds and r in meters. (a) In unit-vector notation, what is the electron's velocity v(t)? (Answer in terms of i, j, k, and t.) (b) What is v in unit-vector notation at t = 2.00

7. ## Org. Chem.

1. Are the following soluble, insoluble, or partially soluble. - Benzophenone in hexane? - 1-octanol in hexane? I think soluble? - 1-butanol in water? in hexane? - methyl alcohol in hexane? I think partially soluble? Please help me and explaining would be

8. ## physics

A baseball is seen to pass upward by a window 29 m above the street with a vertical speed of 15 m/s. The ball was thrown from the street.After how many more seconds does it reach the street again?

9. ## science

mosquito larvae can tolerate extremely low dissolved oxygen concentrations, yet cannot survive at temperatures above 25 degrees celcius. how might you aaccoundt for dissolved oxygen concentrations of such a low value at a temperature of 25 degree celcius?

10. ## physics

A car is driven east for a distance of 50 km, then north for 30 km, and then in a direction 30 degrees east of north for 25 km. Sketch the vector diagram and determine a) the magnitude and b) the angle of the car's total displacement from its starting

11. ## art

Match the artwork with the correct description Woman with Packages Housepainter III First Communion Composition IX Hathor and Sety with Non-Representational B. Representational C. Stylized D. Tromp l'oeil E. Abstract

12. ## Science

We did a refraction lab and we used a semi circular prism and through it we shot a light beam in order to find the angle of refraction. Why is it that we used a semi circle and not perhaps a per circle or some other kind of prism? Thanks :)

13. ## Accounting Math

Can anyone please show me the calculation for these problems: Burlin Company starts the year with \$100,000 in assets and \$80,000 in liabilities. Net Income for the year is \$25,000, and no dividends are paid. How much is owner’s equity at the end of the

14. ## Physics

A man drops a stone into a water well on his farm. He hears the sound of the splash 3.25 s later. The acceleration of gravity is 9.8 m/s2 and the speed of sound in air is 326 m/s. How deep is the well?

15. ## physics

The x-component of vector A is -25.0 m and the y-component is +40.0 m. a) what is the magnitude of vector A? b) What is the angle between the direction of vector A and the positive direction of vector x? can you please help me with the steps to

16. ## Biology

1. Which of the following is a biotic factor that might affect the life of a water-dwelling organism? A. Temperature of the water B. Speed of water current C. Pollutions in water D. Bacterial population in water My guess: D? 2. Which of the following

17. ## Physics

A heavy piece of machinery is raised by sliding its 12.5 m along a plank oriented at 20 degrees to the horizontal. How high above its original position is it raised? How far is it moved horizontally? Can you please give me the formulas for these? Thank you

18. ## science

I posted this before but i realized i posted somethings that were wrong. mosquito larvae can tolerate extremely low dissolved oxygen concentrations, yet cannot survive at temperatures above 25 degrees celcius. how might you account for dissolved oxygen

19. ## marketing

what is the decision facing facebook

20. ## social studies: geography

What feature makes up part of the U.S border with Canada? What feature makes up much of the U.S border with Mexico?

21. ## Graphing on Calculator

An appliance manufacturer estimates that the profit y (in dolars) generated by producing x cooktops per month is given by the equation y= 10x + 0.5x^2 - 0.001x^3 - 5000 where 0 ¡Ü x ¡Ü 450. Graph the equation. I punched in the equation and I didn't get

22. ## Geometry 1

This is probably quite simple, but I was sick and missed the last few lessons. Anyway, here's the problem: Draw, mark, and label each figure: Rhombus EQUL with diagonals EU and QL intersecting at A. The intersecting at A is what's confusing me--as I said

23. ## AP Bio - same question

My teacher said this is a very hard question, but I'm trying to make an attempts. Can you guide me? A biologist places a plant in a closed chamber. A sensor in the chamber maintains the carbon dioxide level at the normal atmospheric concentration of 0.03%.

asked by muffy - still stumped
24. ## math

if a recipe calls for 3 1/4 cups of flour, how many cups is 1/4 of this recipe

26. ## algebra

Simplify the following expression 2(3 x - 2)(2nd Power) - 3x (x + 1) + 4

27. ## accounting

Determine the missing amount for each of the following: Assets = Liabilities + OE a. x = 250,000 + 780,000 B. 125,000 = X + 39,500 c. 60,000 = 7,500 + x

28. ## speech

Can some one please help me complete PRIMARY SUPPORT and SECONDARY SUPPORT for this speech topic outline? Thesis statement: studying foreign languages has influenced the way i think about people from other countries in 3 main ways..(why?) Primary Support

29. ## physics

A stone is thrown vertically upward with a speed of 10.0 m/s from the edge of a cliff 59.0 m high. How much later does it reach the bottom of the cliff? What is its speed just before hitting? What total distance did it travel?

30. ## chemistry

If you had used a different mass of magneisium metal would you expect the empirical formula of the compiund to be the same? explain

31. ## BOBPURSLEY or anyone

h t t p : / / w w w . j i s k h a .c o m / d i s p l a y . c g i ? i d = 1 25 2 8 8 8 9 2 9 ok hmmm m2 g = m1 (acceleration radial) so then if this is the correct equation my question... is how do you know when to consider the masses as a system and when

32. ## science lab

I got these results from my dissolved oxygen lab: Temperature Dissolved Oxygen in Celcius (mg/L) 17 5.8 21 5.4 23 5.3 27 5.1 I understand that as the temperature increases the dissolved oxygen concentration decreases but i don't understand how to answer

33. ## health

I am having trouble starting off this essay. Can someone help me?? Write a 700- to 1,050-paper responding to the following: You have recently been employed by a small local hospital as an administrative assistant in the emergency room. The hospital does

34. ## english

There are a few questions about the novel The Scarlet Letter that I am not to sure about. Can someone please check them. True of False 1) Chillingworth escaped from Indian captivity by drugging his guards with an herb potion? My answer was true. 2)

35. ## Physics urgent help needed!

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s.

asked by How do you do this?
36. ## algebra

elmer burns works for a ready-mix concrete cmpany. elmer receives an order for 3.5 cubic yards of concrete. this mixture of concrete contains sand, cement, gravel, and water, for each pound of water, there are 5 lb of sand, 2 lb of cement, and 6 lb of

37. ## Algebra

If 3 is the index, and there is no radicand, and inside of that radical is another radical with ten being the radicand, how could the result be 6 as the index with ten being the radicand? I thought you multiply the outer index with the inner one. In that

38. ## AP Physics B

can you check my reasoning 1. The problem statement, all variables and given/known data ok well then... we did a lab were you have a hanging mass attached to a stirng that went through a straw and was attached to a rubber stopper. The lab was to find the

39. ## geography

What are the 5 themes of geography?

40. ## chemistry

A sample of C3H8O that contain 200 molecules contains ________carbon atoms??

41. ## Physics

A fire helicopter carries a 615 kg bucket of water at the end of a cable 19.5 m long. As the aircraft flies back from a fire at a constant speed of 40.5 m/s, the cable makes an angle of 35.2o with respect to the vertical. Calculate the force of air

42. ## algebra

HOw do I make a table of values for y equals 3/2? Am I supposed to plot 3/2 on the graph and then draw a line? I know on the y side of the table I'm supposed to have 3/2, but I don't understand how to do the table of values.

43. ## Geometry

I need help asap please Which figure above, if any, is topologically equivalent to the given figure? Identify the topologically equivalent figure by letter. A pretzel a.pencil b.pipe, c.trophy

Why is history important to be studied? Include 3 events in history as supporting evidence. How are these events relevant today?

45. ## algebra

1. you randomly choose an integer from 10 to 20. what are the odds that the integer is 15 or less? 2. you toss a six-sided number cube 15 times. for nine of the tosses the number tossed was 4 or more. what is the experimental probability than a number

46. ## physics

hi, if anyone could give me any sort of help on how to solve this problem i would greatly appreciate it. thank you. A 2.66 kg object placed on a frictionless horizontal table is connected to a string that passes over a pulley and then is fastened to a

47. ## Biochemistry

A protein molecule in its folded native state has one favored conformation, but when it is denatured it becomes a random coil, with very many possible conformations. What must be the sign of the change in entropy (S) for the change native---> denatured

48. ## physics

Each of the four wheels of the vehicle weighs 40 lb and is mounted on a 4in diameter journal. The total weight of the vehicle is 960 lb, including wheels, and is distributed equally on all four wheels. If a force P = 16 lb is required to keep the vehicle

49. ## College Algebra

Solve the system of equations using matrices. If system has no solution say its inconsistent. 6x + y = 5 3x - y + z - w = 8 z + w = 2 Solve the system of equations using Cramers Rule if applicable. 4x + 2y = 8/5 5x - 5y = 5

50. ## MATHS

Could you please help? The Christmas tree store has a parking lot that will hold 1000 vehicles. 2/5 of the parking spaces are for cars. When you went to buy your tree, there were 200 cars and some trucks in the parking lot. The parking lot was 3/4 full.

51. ## physics

In the sum A+ B =C , vecto rA has a magnitude of 11.0 m and is angled 32.0° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 18.0° counterclockwise from the -x direction. What are the magnitude and the angle

52. ## physics

can you walk me through this problem At what distance from the Earth will a spacecraft on the way to the Moon esperience zero net force due to these two bodies because the EArth and Mon pull with equal and opposite forces? mass of earth = m1 = 5.98 E 24 kg

400 divided by 2?

54. ## 12th grade A.P. Economics

which of the following is the most essential for a market economy? 1.) functioning labor unions 2.) good government regulation 3.) active competition in the marketplace. 4.) responsible action by the business leaders. I think its choice no. 3, am i right?

55. ## HCA 240

Radio Ad: Write a 150 to 200 word script for a radio ad that promotes a healthy musculoskeletal system in old age. Address the risk factors for arthritis, osteoporosis, and injuries from falls. Incorate prevention strategies such as proper nutrition

This is my intro for my Julius Caesar essay. _____ represents different characters and qualities in the play. Please check any mistakes or awkward phrases thanks Julius Caesar, written by William Shakespeare during the Elizabethan era, is one of the most

57. ## English

1. I'd like a large sized cheese pizza. 2. I'd like a large-sized cheese pizza. 3. I'd like a large size cheese pizza. 4. I'd like a large-size cheese pizza. 5. I'd like a cheese pizza, the large size. (Which ones are correct?)

58. ## physics

A block sits against a vertical wall and a 120 lb force P acts diagonally to the left on the block at an angle below the horizontal. Determine the magnitude and direction of the friction force which the vertical wall exerts on the 100 lb block if theta is

59. ## MATHS

Could you please help? The Christmas tree store has a parking lot that will hold 1000 vehicles. 2/5 of the parking spaces are for cars. When you went to buy your tree, there were 200 cars and some trucks in the parking lot. The parking lot was 3/4 full.

60. ## Biology

1. Are the third-order heterotrophs consumed by gungal decomposers? My guess:Yes? 2. Which of the following fixes atmospheric N2 (nitrogen gas)? A. photosynthesis B. symbiotic bacterianon the roots of legumes C. uv light D. decay organisms E. autotrophs My

61. ## chemistry

did i do this right calculate the con of cu(nh4)^2+ of solution. Mass of cuso4*5h20=.6000g First i dissolved the sample into 50.00ml of water. I filled up volumetric flask to 100.00 ml mark I then, pipetted 10ml of this sample into a 50.00ml volumetric

62. ## world history

im writting an eassy and our topic question is " how did the early civilization learn to cope with the complexities of growing civilizaions"?' but i have know idea

63. ## world issues

i'm having trouble grasping what happened in the Solomon islands 'tensions' could you help me understand the main points/events whatever thanx

64. ## Repost- Biology

Will someone please help me out.. I have been posted these questions for 7 hours .. but no one has helped me out..please help me out..I got to figure it out within today..please.. 1. Which of the following is a biotic factor that might affect the life of a

65. ## algebra

A passenger train's speed is 60 mi/h, and a freight train's speed is 40 mi/h. The passenger train travels the same distance in 1.5 h less time than the freight train. How long does each train take to make the trip?

66. ## physics

you are standing on one side of the river. Figure out the width of the river. All calculations have to be made on the side you are standing on. You cant step into the river or cross it. You may use the 2 laws ( sine and cos ). no guessing allowed. has to

67. ## Physics

If the rectangular coordinates of a point are given by (4,y), and its polar coordinates are (r,25 degrees), determine y and r.

68. ## fisica

como puedo representar un vector en un plano cartesiano a 45 km por hora con un angulo de 45 grados

69. ## Psychology

Present a situation in which you acted or reacted ‘mindlessly’ (see web links below), rather than thoughtfully, and which did not turn out well for you. Using the critical thinking concepts discussed in Chapter 1 and concepts of Chapter 8 and/or from

70. ## chemistry/physics

i need to determine how many protons, neutrons, and electrons are in these but they arent just straight elements tehy are singly ionized hydrogen (positive) doubly ionized hydrogen(positive) and singly ionized oxygen (negative) these are my answers,

71. ## Biology

Stored energy is stored where in living tissue?? -Ecological pyramids worksheet

72. ## History

During the debate over Reconstruction, is it more likely the moderate or radical republicans would gain the upper hand? Are there any sources available that could help me come to a reasonable conclusion?

How can Seasonal be a weakness for McDonalds company?

74. ## physics

Person X travels from A to B and then back the same route at a constant speed of 50 km/h. Person Y travels the same route to B at half the speed. How fast does person Y have to travel back to make the complete return trip in the same time as person X?

75. ## math

My teacher said we are supossed to solve this using systems of equations: Let a, b, and c be real numbers such that a-7b+8c=4 and 8a+4b-c=7. Then a^2-b^2+c^2= ? can someone please help?! i don't know what method to use to solve this or where to start

76. ## Math

a real estate broker earns a salary of & 21,000 plus 2.5% of the value of any real estate sold. Last year the broker earned \$ 52,000. What was the total vaule of all real estate sold by the broker.

77. ## social health

Please take one of the Emotional Intelligence tests at the sites listed below. Reflect on your results and explore ways that you might develop an enhanced emotional IQ. The sites below have informal self-administered surveys that introduce the concept of

78. ## Algebra

Factor each of following expressions x (4th power) - x (3rd power) - 6x (2nd power (a-b)(2nd power) - (a 2nd power + b) 2nd power

79. ## writing/language arts

Hey! I'm supposed to write a 3-4 page essay, describing something or someplace. So I choose my balcony.. I live on the seventeenth floor and using my 5 sense I described it as best as I could :) I was wondering if you would suggest some similes, metaphors,

80. ## finance

Part I: Compute the worth of Arcadia Hospital in 2005 using rules of thumb, adjusted book value, and discounted cash flow valuation (for this final method, use the table provided). Assume the cash flow for 2005 is the same as 2006. 1) Rules of thumb: 2)

81. ## Biology

" Are hunters for or against managing predators?" what does this question mean? What does it mean by managing predator? Thank you!

82. ## English language learned

How do the varieties of standards available to teachers provide a focus on high expectations and the motivation needed to tailor instruction to meet the needs of the learner

83. ## geometry

Can some one please help me figure the angles out? sorry I can't copy and paste the figures... The 17in x 17in square below is given. We have chosen 4 points M, N, P, and Q one on each of its sides as shown in the figure and joint them to obtain a new four

84. ## Algebra

I need to rationalize the denominator of 2/3 square root of five, (three being the index). My book suggests you should multiply this by 3 square root of 5^2 over 3 square root of 5^2. I thought the numbers that you rationalize the original with should be

85. ## science

Explain and give examples as to how these tenets support science literacy

86. ## english

I am doing a book report on the book my sister keeper i need to give a description of two characters in the book and also the page number i found it on ??

87. ## AP Stats B

B is the one without calculus I belive... anyways so descriptive statistics I\'m doing the 2004 AP Statisics AP test Section II part A like my teacher gives us old exams and this is one of those questions the question asks for a boxplot there are outliers

88. ## LANG ARTS

What is the noun in Stop it immediately.

89. ## Science

I need help on one question why is it important to test scientific ideas? plz help and thank you

90. ## question about math (law of syllogism/detachment)

Does anyone know about the law of syllogism and law of detachment. If so, can you check my work.

91. ## calculus

solve for x: a)e^x=5 b) lnx=2

92. ## math!

My teacher said we are supossed to solve this using systems of equations: Let a, b, and c be real numbers such that a-7b+8c=4 and 8a+4b-c=7. Then a^2-b^2+c^2= ? can someone please help?! i don't know what method to use to solve this or where to start

93. ## math

can u give me five percentagesx for homework Thanks

94. ## algebra

I am trying to solve 5x+y=30 - this is what I have completed so far. 5x+y=30 -5x =30-5x y= 25x so the points to plot would be -5,25 ? I do not think is correct - please help

98. ## chemistry

What is the difference between a metal and an alloy?

99. ## Physics

Three forces acting on an object are given by F1 = (-8.79i + 8.34j) N, F2 = (7.06i + -3.02j) N, and F3 = (-3.05i) N. The object experiences an acceleration of magnitude 2.26 m/s2. What are the components of the acceleration vector?

100. ## socio

what are the consequences of health disparities on everyone

101. ## US History

Why is history important to be studied? Include 3 events in history as supporting evidence. How are these events relevant today?

102. ## Social Studies

What is the mountain range that stretches across west virginia? thnx

104. ## marine science

I have to find the type of organisms that the Black alder (plant) competes with or will displace. I have been googling this forever but I still cannot find the answer. Can someone please help!! Thanks

105. ## Biology

hypoxia triggers increased ___ secretion? is it carbon monoxide? or erythropoietin? After oxygen diffuses into pulmonary capillaries, it diffuses into ___ and binds with __? a;interstitial fluid;RBC? b;interstitial fluid;C02? c;RBC:hemoglobin? d;RBC:C02?

106. ## math

is 1 a composite number or a prime number?

107. ## Blue laser discs

How many configurations blue laser discs (standard, physical size, number of layers, capacity, etc) are currently available?

108. ## Math

Simplify the following expression 2(2x - 2)2 - 3x(x + 1) + 4

109. ## law

Who established the first legal law codes? And in what country?

110. ## history

I have already been to this site and I cannot find an answer to this question.

111. ## college

Analyze and post, in 350-700 words, how the human resources assistance plan and aids you have been working on for your final project fit into the company's strategic plan MEDICAL RECORD MANAGER

112. ## english

I had to to an exercise on summarizing a paragraph. Can I get an opinion and help revising it. Help me to add what I need and delete what I don't to rewrite it. This below is the summarized paragraph Arizona has become a principal area where drugs are

113. ## MATH

how do you factor x^6+512?

114. ## us history

list some of the advantages of using indentured servants

115. ## Science Question

ok i will copy and paste the question here! thnx Using the internet or books, write a summary about 2 ways the surface of the roads have been made safer for car passengers. but the hard bit is i have to write down a rerence of the internet pages i use to

116. ## Math

Evaluate the expression. m/4 if m=1/5

on a map I need to lacate Mt.Olympus,Mt.Parnassus,Mt.Pindos and Mt.Helicon all on one Mythology map.

118. ## math

how do you find the missing lenght of a right triangle if you have 20 on the left side and 48 on the bottom and you need to find the missings number

119. ## English

I still don't get it, can you give me an example from the Hobbit book, thanks

120. ## crossword puzzles sports

Is there a website that will help me find words for a "World Sports" cross-word puzzle?

121. ## TO BOBPURSLEY

I have responded

122. ## Math

36/4+5-1+2x3+12/3+1=6 Insert parenthesis and other group symbols.

123. ## cultural diversity

when the Scot-Irish immigrated to America did they face prejudice, segregation, racism, or any combinatio of the three?

124. ## French

I really need your help What English word is similar to adorn? give an equivalent in French to decorate? Give two synonyms in English comprehension? please help and thank you

125. ## 9english

This is for anyone who has seen the movie "Remember the Titans". Give three specific examples of the different coaching styles of Boone and Yoast. Three examples per coach. I know that Coach Boone wants everything to be perfect, he's tough,and runs a

126. ## crossword puzzle sports

Words with 8 or more letters Positioned behind the line of scrimmage? Sports shoes?

127. ## health

Beside cost containment, what are some other advantages for using Outpatient as opposed to Inpatient

128. ## Into to LAN

• Explain how you would create the users for the sales organization unit and how to set up work groups in this particular situation. Keep in mind that you may have to name certain applications and allowable tasks for each individual or job role.

129. ## math-quotient

Help me please. My mind is mush.... need to find the quotient of: a. 3/4÷-12 b. 5/4÷2 2/3 c. 18 ÷4.6 d. 3.06 ÷0.22

130. ## us history

american value that was developed during the enlightment?

131. ## Poetry

I need to write a poem with the word ALGEBRA but the only problem is that my teacher wants complete sentences with each letter instead of a word for a letter. Can you please help?

Was world war two hitlers war?? if so why.

133. ## math

I can understand in my head how to solve it I can't figure it out on paper. Help......I'm sure this will be easy for someone. The Rental Depreciation Problem. The owner of a rental house can depreciate its value over a period of years, meaning that the

134. ## math

How do I add the rational expressions 5x/(x^2-16) and 2/(x+4)?

135. ## science

what is an answer reached at the end of an experiment ?

136. ## home economics

what are the careers in home ecomics?

137. ## english

it is my summary I just need it to be revised

138. ## Algebra

could you show me how to solve for x it is killing me y/x^2 = b/(a-x)^2

139. ## French

I need to translate this paragraph. Can someone check my work? I didn't write it so I can't just change it to have only words I know so I need help to translate it. Thanks! I would like to travel if I had the time and the money. I would like to see the

140. ## social studies

5 paragraphs on how a city establishes food and water?

141. ## Physics

I have no idea how to do this problem At what distance from the Earth will a spacecraft on the way to the Moon esperience zero net force due to these two bodies because the EArth and Mon pull with equal and opposite forces? there\'s no data in the question

142. ## social studies

HOW would you analyze 2 kinds of economic systems

143. ## algebra

My algebra book says that a^-n is equal to 1/a^n, which is equal to (1/a)^n. Does that then mean that a^n/m would be equal to (a/m)^n? Thank you very much.

144. ## Critiical Analysis Form

September 11, The threat

145. ## home economics

what is churned food turned into a thick liquid?

146. ## esl

is practices (z or iz)

147. ## esl

is uses z or iz

148. ## History

What was the United State's roll in the Mexican Independence?

149. ## math

find two numbers whose sum is 64 if one of the numbers is one seventh the other.

150. ## math

if a recipe calls for 3 1/4 cups of flour, how many cups is 1/4 of this recipe

(-6)-((-2)-5(2nd power)

152. ## LANG ARTS

What is the noun in Stop it immediately.

153. ## world history

renaissance

what are proteins?how are they important to our body/