# Questions Asked onJune 12, 2009

1. ## trig

The expression 4 sin x cos x is equivalent to which of the following? (Note: sin (x+y) = sin x cos y + cos x sin y) F. 2 sin 2x G. 2 cos 2x H. 2 sin 4x J. 8 sin 2x K. 8 cos 2x Can someone please explain how to do this problem to me?

2. ## Thermochemistry

When 1.477 mole of an inorganic salt were dissolved in 1.00 L of water in a constant pressure solution calorimeter, the temperature of the calorimeter changed from 25.00oC to 24.40 oC. The total heat capacity of the calorimeter including all its contents

3. ## Enthalpy Change?

Given the thermochemical equation SO2(g) + ½ O2(g) ® SO3 (g) DH = -99.1 kJ calculate the enthalpy change (DH) when 89.6 g of SO2 is converted to SO3 a. -69.3 kJ b. -139 kJ c. 69.3 kJ d. 139 kJ e. -111 kJ

4. ## Biology

Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced

5. ## Biology

Part 1: Genetics – From Genes to Proteins, Mutations (Chapter 10) Overview: Genetic information in DNA is transcribed to RNA and then translated into the amino acid sequence of a Protein. A) Step 1 - Transcription: During the process of transcription,

6. ## spanish

"¿De qué se trata la película Frankenstein?" "Se trate de un científico y un _____." a. policía b. director c. monstruo d. vaquero C

7. ## geology(science) am i correct

What are the two categories of metamorphic rocks? What are the distinguishing characteristics between the two categories of rocks? the answer? Is that foilated and nonfoilated?

8. ## math

A golf ball is hit with an initial velocity of 135 feet per second at an angle of 22 degree above the horizontal. will the ball clear a 25-foot-wide sand trap whose nearest edge is 300 feet from the golfer?

9. ## spanish

"Doctor, me corté el dedol. ¿Me puede ayudar?" "Claro que sí. Le voy a _____." a. hacer puntadas b. sacar una radiografía c. poner unos frenillos d. quemar A

10. ## spanish

"¿Qué te dio el médico para la tos?" "Me dio _____ para un jarabe." a. una muleta b. unas gotas c. una alergía d. una receta D

11. ## spanish

"¿Cómo se lastimó Carmen?" "Estaba preparando la cena cuando _____ el debo." a. se cortó b. se coratba c. se corta d. se cortaron i tried to use the previous posts of Sra to understand this, but i don't get it at all. can you pleaaase explain one more

12. ## Math

if 7y=2x-5 what does x=

13. ## geology

can you help me find some sites on these please... thank you. Where do metamorphic rocks originate? How are they formed? What are the two categories of metamorphic rocks? What are the distinguishing characteristics between the two categories of rocks?

14. ## spanish

"Qué estaban haciendo Elena y tú cuando se lastimaron la muñeca?" "_____ tenis." a. estaban jugando b. estamos jugando c. estábamos jugando d. están jugando same as the post below this... (I'm sure it's not D)

15. ## spanish

"Doctor, ¿cómo está mi padre?" "No sabemos todavía. Vamos a hacer _____ de la sangre para buscar algún virus." a. una radiografía b. un marisco c. una operación d. un análisis D

16. ## spanish

"¿Qué le pasó al Sr. García anoche?" "Fue en ambulancia a la sala de emergencia y tuvieron que hacerle una _____ de emergencia." a. hormiga b. operación c. radiografía d. receta B

17. ## spanish

"Agustín, ¿por qué no fuiste a la escuela ayer?" "Porque el médico dijo que tuve una _____ leve con fiebre." a. sangre b. síntoma c. mosca d. infección i'm confused between B and D , but i think D fits best

18. ## spanish

"¿Qué estabas haciendo cuando tuviste el accidente, Daniel?" "_____ el desayuno cuando me corté el dedo." a. Estoy preparando b. Estaban preparando c. Estaba preparando d. Estuve preparando ......? "Tengo hambre, pero no quiero comer demasiado antes de

19. ## spanish

"Esteban, ¿qué te pasó?" "¡Estaba jugando en el jardín cuando me _____ una abeja!" a. picaste b. picó c. picaba d. pica B

20. ## spanish

Me vas a lastimar el pe donde me hicieron ______. a. calamina b. puntadas c. gotas d. pastillas B

21. ## spanish

"¿Te gustan las películas románticas?" "Sí. Siempre me gusta la escena cuando la heroina y el galán _____." a. se enamoran b. actúan c. se esconden d. arrestan A

22. ## spanish

"¿Te gusta ver los programas de entrevistas?" "No. Creo que son demasiado _____." a. principales b. excelentes c. internacionales d. sensacionalistas D

23. ## spanish

"¿Sabías que ayer hubo un terremoto muy violento en California?" "Sí.l Mis tíos dijeron que _____ muchas casas." a. destruyó b. dirigió c. arrestó d. robó A

24. ## spanish

RECETA 1 Ingredientes 1 taza de papas, cortadas en cubitos y cocidas sin cáscara 1 taza de zanahorias, cortadas en cubitos y ya cocidas 1/2 taza de guisantes cocidos 1/2 taza de judías verdes cocidas 3 cucharadas de aceite de olivia 1 cucharada de

25. ## spanish

Read these excerpts from national park brochures written for vacationers. Then write Sí if the statement is correct or No if the statement is incorrect. Folleto 1 Queremos que todos se diviertan, pero hay que tener cuidado con los animales que son

26. ## spanish

Cuando hay fuertes tormentas de lluvia, muchas veces hay _____. a. vaqueros b. extraterrestres c. inundciones d. entrevistas C

27. ## spanish

"¡Ese actor es horrible!" "Sí. La _____ es muy exagerada." a. tormenta b. actuación c. ayuda d. entrevista B

28. ## spanish

"¿Qué pasó en la última _____ de la película?" "El galán regresó a Europa y arrestaron al criminal." a. dirección b. fotografía c. víctima d. escena D

29. ## spanish

"¿Qué hace aquel detective?" "Está _____ un crimen.: a. tratando de b. investigando c. haciendo el papel de d. montando a caballo B

30. ## chemistry

Use the following reaction to answer the questions 4Fe(s) + 3O2(g) ® 2Fe2O3(g) ÄH = -1700 kJ How many kJ are released when 2.00 g Fe react? How many grams of rust form when 453 kJ of energy are released?

31. ## SOCIAL STUDIES

I had to outline the achievement of Erasmus and I wrote: as a young man, he tried to live in monk, but instead went ot university of paris, where he like the other humanists became popular for his learning & travelled to England where he got to meet king

32. ## SOCIAL STUDIES

the achievevment I have outlined for Luther is : that he was the !st one to begin a reformation. He drew list of arguements against church practises and nailed them to door of church in German city of Wittenberg. The list which became known as Luther's

33. ## gr 10 art

what are the seven ways to portary depth or distance on a 2-d surface?

34. ## SOCIAL STUDIES

the outline achievement of Pope leo x I got: Lorenzo de Medici's son who published a bull disapproving of many of Luther's teachings & threatning the monk with excommunication or removal from church. This pope officially excommunicated Luther & put him on

35. ## SOCIAL STUDIES

John calvins achievements = french lawyer who set up a christian state in city of Geneva in Switzerland. His state was ruled by religious authorities. His government was really strict. People in that city had to get used to his "blue laws", because of

36. ## PLEASE AND THANK U

i just want to sat that I appreciate all u teachers helping me, but please don't provide one site for me which is Wikipedia. I don't understand a single thing wen I reach that page. It confuses me more, but thanx

I have filled in an Excel spreadsheet. On the far left column are itemized numbers from 1-619. When I print the document, the far left column of itemized numbers does not print. How do I tell the computer to print the far left column of items?

a concrete border is to be built around a traingular flower garden that has sides of 10m , 7m and 8m. the border is to be staight walking path 1m wide on all sides of the garden. before the concrete can be poured, wooden forms need to be placed on the

39. ## Medical Transcriptionn

2 part question: When must a new medical employee be trained in privacy practices? What is required if an employee does not comply?

40. ## geology

can you help me plz find more information thanks What are the two categories of metamorphic rocks? What are the distinguishing characteristics between the two categories of rocks? the answer? Is that foilated and nonfoilated?

I went to File/Print Area and selected Clear Print Area. Then I went to File/Print Preview and the far left column of itemized numbers 1-619 do not show up. How can I get the far left column of itemized numbers to be printed in my document?

42. ## geology(this correct)

Where do metamorphic rocks originate? How are they formed? What are the two categories of metamorphic rocks? What are the distinguishing characteristics between the two categories of rocks? Metamorphic gets their name from change which is called "meta" and

43. ## Algebra

It's been so long since I've donw combinations, and now I have a question about them in my algebra homework packet. Question is....Marcie has a collection of 9 DVDS. She will choose 4 of them to take in the car to watch during a long trip. How many

45. ## *SOCIAL STUDIES*

why did the slave trade become such an important part of overseas trade?

46. ## chem

What mass of lithium (in g) is required to react completely with 59.1 mL of gas at STP? given the equation 6Li+N2=2Li3

47. ## world history

what set the stage for vietnamese resistance againts the french?

48. ## SOCIAL STUDIES

for the question: how did the catholic church respond to the Protestant Reformation. I got: The Catholic Church responded to the Protestant Reformation by I don't know if this is right but this is what it says under the heading THE CATHOLIC CHURCH

49. ## psychology, counselling

An assignment on interviewing a counsellor. What are the appropriate questions to ask a counsellor? I would like to know more about his job and the problems that he is dealing with.

50. ## Calculating DH°rxn?

What is DH°rxn for the following reaction, CH4(g) + 2 O2(g) ---> CO2(g) + 2 H2O(l), given DH°f[CH4(g)] = -74.8 kJ; ...DH°f[CO2(g)] = -393.5 kJ; ...DH°f[H2O(l)] = -285.5 kJ. a. ) -604.2 kJ b. ) 869.7 kJ c. ) -997.7 kJ d. ) -889.7 kJ e. ) 997.7

51. ## q, w, and DU

A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and DU? Pay careful attention to units. a.

52. ## math

Which situation describes a correlation that is not a casual relationship? 1 The rroster crows, and the sun rises. 2 The more miles driven, the more gasoline needed. 3 The more powerful the microwave, the faster the food cooks. 4 The faster the pace of a

53. ## Algebra

Given that f(x) = x^2-3 and g(x) = 2x+1, find each of the following, if it exists. a. (fg)(-root3) b. (gf)(-1/2)

54. ## science

why a necked human body bursts in space

55. ## Calculus

Let f be the function defined by f(x)=2x+11-3e^x If the equation of the tangent line to the graph of f at the point (0,8) is given by y=mx+b then: m=? and b=?

56. ## Animals

Can you tell me where I can find some good ansewer

57. ## Animals

Can you tell me where I can find some good places where I can learn about dogs

58. ## physical science

what is the weight in newtons of a 250-g package of breakfast cereal?

59. ## Bus207

Individual Portion: Discuss the roles of government, business, and the consumer in environmental protection. Justify your position. To participate fully in this discussion, you can locate information using the Library’s web links and article search

60. ## Bus207

"Drug use is information that is rightfully private and only in exceptional cases can an employer claim a right to know about such use." Defend or oppose this statement. How is your response to this assignment consistent with the moral philosophy you

61. ## Biology

Read Scientific Inquiry, Controlled Experiments Then and Now, pages 6-7 of your textbook. Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a

62. ## Biology

Bacterial cells are prokaryotic. Select two structures of bacterial cells and briefly describe them; what do they look like, what are they composed of? Then, explain how these two structures allow bacterial cells to survive as unicellular organisms. There

63. ## English

Can anyone help me to outline the article, "What \$1.2 Trillion Can Buy-NYTimes"? I'm not allowed to post website,but the article can be googled. I'm not quite sure which sentence among the article is the the thesis. thanks

64. ## biology

help me to do an research design

65. ## Math

Can someone help me find the technique or techniques used in this problem? 146 divided by 68. I thought that 14 and 7 are easy to divide, so I used 140 divided by 70, which is 2. The quotient is about 2.

66. ## Algebra

Given that f(x) = x^2-3 and g(x) = 2x+1, find each of the following, if it exists. a. (fg)(-root3) b. (gf)(-1/2)

67. ## Algebra

Solve 2+y/7+5=4+1-y/7 for y. Book says the answer is y=-7 How can this be the answer when the y/7 can each other out when you simplify? 7+y/7=5-y/7 -7____-7 ___________ y/7=-2-y/7 This is what I come down to.

68. ## Us Goverment

I need to know what the different Taxes are, what % of people have to pay serten taxes and about civil rights. if you know a website that can help i would be very grateful. i tryed google but all i get are tax formes. thanks.

69. ## eng comp 1

can someone give me an example of a compare and contrast essay just thinking what can i do it of

70. ## Algebra

State the center and the radius of the circle represented by the equation (x + 1)^2 + (y – 5)^2 = 64

71. ## spanish

"¿Quieres ver las noticias locales esta noche?" "No. Prefiero ver las _____ para recibir información sobre lo que pasa en otros países. a. principales b. basadas c. excelentes d. internacionales can someone please explain this question to me thanks

72. ## spanish

Esta mochila es demasiado pesada. ¿Está muy lejos el _____? a. fósforo b. palito c. valle d. campamento D

73. ## spanish

"Tío, ¿podemos usar estas hojas y estos palitos para encender un fuego??" "Ahora no, porque están mojados. Primero tenemos que _____." a. coserlos b. secarlos c. escalarlos d. ponerlos B

74. ## spanish

"¿Cómo sabes qué animales salvajes viven por aquí?" "Hay que estudiar todas las _____." a. huellas b. ardillas c. velas d. piedras A

75. ## spanish

"Papá, Arturo y yo vamos al bosque para buscar plantas silvestres." "Bueno, pero ya son las seis de la tarde. No quiero que Uds. _____ muy lejos." a. van b. fueron c. vayan d. iban C

76. ## spanish

"Hay gorilas en los bosques de los Estados Unidos?" "No, pero hay muchos _____." a. venados y ardillas b. fósforos y espinas c. ballenas y lobos d. coyotes y canoas A

77. ## spanish

"¿Es difícil escalar montañas?" "Sí. Por eso es importante que _____ buen deportista." a. eres b. eras c. seas d. fuiste B

78. ## spanish

Rosa, lleva este suéter. No quiero que _____ frío. a. tengas b. tienes c. tenías d. tuviste C

79. ## spanish

"¿Qué olla debo usar para cocinar los frijoles?" "Es mejor que _____ ésta." a. usaste b. usas c. usabas d. uses D

80. ## spanish

"¿Sabes hacer esquí acuático?" "Sí, pero frefiero practicar otros deportes como _____." a. poner la tiend b. coser c. hacer surf d. secar C

81. ## spanish

"Abuelo. Está roto este saco de dormir. ¿Lo puedes _____?" "Sí, nieto. Espera un momento." a. recoger b. coser c. secar d. navegar B

82. ## social studies

Which characteristic do most countries with a market economy share?

what is the amplitude of y=6 sin 1/8x

84. ## MOLARITY QUESTION

I am trying to answer a bunch of lab questions about a lab I did and am stuck on finding the morality of the diluted vinegar solution? Can anyone help me? (I hope I gave enough info) Here where the lab procedures that I already went through: Transfer 10mls

85. ## college

Consider how employers and fellow team members could use this instrument at work. Is this test reliable? Is it valid? What are the potential benefits and drawbacks of a test that attempts to measure skills, abilities, or traits?

86. ## pyschology

Consider how employers and fellow team members could use this instrument at work. Is this test reliable? Is it valid? What are the potential benefits and drawbacks of a test that attempts to measure skills, abilities, or traits?

87. ## marketing

What are some of the different stages that a company goes through when developing their IMC strategy? Am I on the right track? Establish the Communication Objectives Determine and Allocate the Marketing Communication Budget Design the Promotion Mix

88. ## AE

You're an elementary teacher in a self-contained classroom. You've got a class of 29 lively sixth graders, and you've been struggling all year with classroom management. Damien, a larger than average boy, seems to resist your efforts at every turn. You

89. ## chemistry

I am trying to answer a bunch of lab questions about a lab I did and am stuck on finding the morality of the diluted vinegar solution? Can anyone help me? (I hope I gave enough info) Here where the lab procedures that I already went through: Transfer 10mls

90. ## College Writing

where can i find reliable resources on college athletics for a paper? i am writing about student athletes and i have used the NCAA website, but are there any journals? can i use newpaper articles or would those be considered too biased?

91. ## Algebra

Given that h(x) = x+4 and g(x) = rootx-1, find each of the following, if it exists. a. (gh)(10) b. (h/g)(1) c. (hg)(3)

92. ## SCI 275 Environmental Science

CheckPoint: Energy Resource Challenges Assignment: Energy Resource Plan --------------------------------------------------------------------------------

93. ## pr

Find the lower control limit for using in p]chart