Questions Asked onJuly 2, 2008

1. Math

The population of a slowly growing bacterial colony after t hours is given by p(t)=3t2+29t+150 . Find the growth rate after 4 hours?

2. Calculus

An air ambulance is travelling from Barrie to Toronto. Toronto is located 90 km [S5°E] of Barrie. If the wind is blowing from the South with a velocity of 62 km/h, and the plane’s air speed is 375 km/h, what direction must the pilot fly to make it to

3. Math

The population of a slowly growing bacterial colony after t hours is given by p(t)=3t2+29t+150 . Find the growth rate after 4 hours?

4. Calc.

If the Queen Bee leaves the hive and travels 210 m [N32°E] and then 37 m [S51°W], how far and in what direction is the bee from its hive? I am unsure of my final answer, can someone please explain this so I know if I am doing this right? THANKS!

5. chemistry

I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the

6. physics

The force shown in the figure below is the net eastward force acting on a ball. The force starts rising at t=0.012 s, falls back to zero at t=0.062 s, and reaches a maximum force of 35 N at the peak. Determine with an error no bigger than 25% (high or low)

7. English

I am worried about his health. I am concerned about his health. I worry about his health. Are all grammatical? (above) Which one is commonly used? Would you let me know other similar expressions? I don't like both of them. (Is this the following in

8. physics

The force sensor measures the force on the sensor due to the bumper, but the cart's momentum change arises from the force on the cart due to the bumper. Which of the following facts are needed to assert that the magnitude of these two forces are nearly

9. Easy Chem 2

17) How many moles of NO2 are in 2.3g

10. chemistry 1c

The first step of the synthesis is described by the reaction below. When 2.000 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of 1.0 M H2C2O4, the theoretical yield of FeC2O42H2O is grams. Fe(NH4)2(SO4)26H2O(s) + H2C2O4(aq) FeC2O42H2O(s) + (NH4)2SO4(aq) +

11. Calculus

So, yet again, I am confused! State whether or not the following statements are true. Justify your reasoning. a). a• ( b+c ) = a• b + a • c b.) a × ( b+c ) = a × b + a × c c.) a × ( b•c ) = a × b • a × c Thanks, again!

12. Macroeconomics

Why do we consider a business-cycle expansion different from long-run economic growth? Why do we care about the size of the long-run growth rate of real GDP versus the size of the growth rate of the population?

13. English

1. On the way home I met my old friend. What is the part of speech of 'home'? Is it an adverb? Then, what does 'home' modify? 2. Probably tomorrow he'll come back. 3. Maybe tomorrow he'll come back. What is the difference between 'probably' and 'maybe'? 4.

14. English

9. Four Seasons in One Day? READ AND LEARN Tony : Hello, may I speak to Mr. Smith? Miss Ford : Who's calling, please? Tony : This is Tony. I'm Mr. Smith's son. Miss Ford : Oh, hello. Hold on a second. Mr. Smith : Hi, Tony. What time is it in Korea? Tony :

15. chemistry

In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is

16. physics

A bat hits a moving baseball. If the bat delivers a net eastward impulse of 0.7 N-s and the ball starts with an initial horizontal velocity of 3.8 m/s to the west and leaves with a 5.2 m/s velocity to the east, what is the mass of the ball (in grams)?

17. history

Compare Nixon's policies of engagment to foreign policy strategies during the Cold War

18. Summer School Calculus

Not sure of this: Describe three situations in which you may want to know the projection of one vector onto another. Merci for the help!

19. URGENT! Calc

If vector |a| = 12 cm, |b| = 13 cm, and the angle between them when placed tail to tail is 35°, find a • b to the nearest centimetre a) a • b = 57 b) a • b = 8 c) a • b = 11 d) a • b = 24

20. Macroeconomics

When one person saves, that person’s wealth is increased, meaning that he or she can consume more in the future. But when everyone saves, everyone’s income falls, meaning that everyone must consume less today. Explain this seeming contradiction.

21. English

Mother wants to see you. Father wants to see you. Sister wants to see you. Brother wants to see you. Uncle wants to see you. Aunt wants to see you. -------------------- Are the expressions above all correct? Do I have to write "Your aunt wants to see

22. English

I am writing a research paper about the developments in literature during the Romantic Period... In today’s society our interpretation of the word ‘Romantic’ might mean an intimate walk on the beach enjoying the pastel painted sunset-sky, a

23. Algebra

3x-27/55÷x-9/15x my answer is =3(11x^2-4)/11x is this correct

24. early childhood

What examples of apprenticeships can you think of in infancy, early childhood, middle childhood, early adolescence and late adolescence?

25. Algebra

SIMPLIFY BY REMOVING FACTORS OF 1. q^2-64/(q+8)^2 q^4+16q^3+64q^2-64/(q+8)^2 is this answer correct, can you help me .

26. Algebra 1

I am kinda confused on this can someone help me? As you are leaving the community, you notice another new community just down the street. Because you are in the area, you decide to inquire about it. The sales representative here tells you they also have

27. Algebra

add. (5r^4-3r^3+3r^2+14r-8)+(r^5+8r^3+7r^2-3r+5)+(-8r^4+r^2-8r-9)the answer I came up with is r^5-3r^4+5r^3+11r^2+3r-12. This is my first time doing this can someone help me to see if this is correct.That is one whole equation.

28. English

A: Who's calling,please? B: This is Mom speaking. What is omitted before 'speaking'? Is 'who is' dropped before 'speaking'?

29. Algebra

Factor. v^2+12v+36 my answer was (v+6)^2 Can you check this for me.

30. enviromental science

What exactly are the differances of conservation and preservation?

31. this is a survey i have to do

STORY: MY QUESTION: after you read the story: DO you agree with Susan that all Kerry is saying is that Patti is thin with shape STORY: The two players are Kerry and Patti. Kerry and Patti who were having a conversation about many things and then all of a

32. Math:Calculus

State whether or not the following statements are true. Justify your reasoning. a. a• ( b+c ) = a• b + a • c b. a × ( b+c ) = a × b + a × c c. a × ( b•c ) = a × b • a × c Appreciating any help!

33. Algebra

REWRITE THE FOLLOWING EXPRESSION WITH POSITIVE EXPONENETS.(11xy)¯^5/^7= 1/(11xy)¯^5/^7 .is this answer correct. cAN SOMEONE HELP ME WITH THIS EQUATION ,I AM TRYING TO LEARN.

34. English

Posted by John on Wednesday, July 2, 2008 at 4:36pm. 9. Four Seasons in One Day? READ AND LEARN Tony : Hello, may I speak to Mr. Smith? Miss Ford : Who's calling, please? Tony : This is Tony. I'm Mr. Smith's son. Miss Ford : Oh, hello. Hold on a second.

35. Chemistry

How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water?

36. Algebra

Solve. ã9x+81=x+5 this is my answer:x=35+3ã61/2,35-3ã61/2 is this correct.

37. Easy Chemistry

How many atoms are there in 1.0 gram of iron, Fe?

38. psychology

This is a survey for school: STORY: My question: Do you agree with Alicia’s friend - give details? This conversation took place at a local drugstore between Alicia (a customer) and Francine (who works in the store). Keep in mind that Alicia and Francine

39. Health Care

I am need of some help with this; Employees from the billing department are not receiving the accurate codes and information needed for data entry,slowing production and payment for the doctor. As head of the billing department, you have been delegated to

40. microeconomics

Veena always consumes 3 times as much y as she consumes x. She will consume these goods in no other ratio. The price of x is three times the price of y. Veena has an endowment of 18 units of x & 78 units of y which she can trade at the ongoing prices. She

41. Macroeconomics

In an economy, in a given year the production of capital goods increases by Rs.100, of which Rs.80 worth of goods can be sold in the mkt. In the same year there takes place a simultaneous decline in the import of Rs.30 worth of capital goods. Everything

42. Grammar

This is silly, really. What is the possessive form of class? Is it "center of the class’s attention" or center of the class' attention"? I think it's the first one, but I don't know for sure. Thanks!

43. AE

In any given multicultural classroom, what are the concerns in terms of social justice for all students? How could we address these concerns? Describe a strategy we might use to ensure that all students are treated equally and fairly?

44. CALCULUS!!!!!

Given the vectors a = (1, 3, 4) and b = (4, 5, -4), what is the angle between the two given vectors to the nearest degree?

45. gender roles

asked by klar maesen
46. MAth

help me please Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The

47. algerba

does anyone have a clue how to do this. I am so lost. If you can please explan why you do what you do when working this out so maybe i can better understand this. thanks a bunch. Prove (algebraically, not numerically) that the product of the solutions of

48. Physics - same ? as marina but im smarter, lol

Marina is my bf and we both attend a educational program called proyecto science. In it, when we were to attend the physics course, we had this ?: T = 2ð² L/G in this equation, T represents time, L represents Length and G represents Gravity. We are

49. Algebra

(11xy)¯^5/^7= 1/(11xy)¯^5/^7 Is this answer correct. Can someone tell me if I did this expression right. The instructions are to rewrite the following expression with positive exponenets.

50. physics

i do not get this question at all and if u could help it'd be a real HUGE help. solve these equations (sorry i do not have the symbols so i will just write the words out. sorry again for any inconveniance. ): time= 2pi x squareroot of length/gravity ....i

51. COM220

Do you think Eliminating Negative Thinking is a controversial, supportable and sound topic for a research paper?

52. English

* This is Tony. I'm Mr. Smith's son. How do you pronounce 'Smith's son'? It's difficult to pronounce. * Hold on a second. Q1) Is 'for' omitted before 'a second'? Q2) What is the opposite of 'hold on' in the telephone conversation? Q3) Can we use 'hang on'

53. critical thinking

The New York steak, the Maine lobster, and the beef stroganoff at that restaurant are all exceptionally good. All the entrees are excellent.

54. Algebra

let do some corrctions sqrt9x+81=x+5= answer was x=35+3sqrt61/2,35-3sqrt61/2. please work with me.

55. Algebra

Factor the trinomial. t^3-4t^2-32t = t(t+4)(t-8) can someone help me pleaseand check my answer.

56. scien- need some info.

Need some infos. that could help me answer this questions. four factors that produce changes in population size.

asked by rose - Ms. sue
57. English

1. Fast food is bad for health. 2. Fast food is poor for health. 3. He is bad at swimming. 4. He is poor at swimming. Is #2 correct? Can we use 'poor' instead of 'bad'? I think both #3 and #4 are grammatical. Am I right?

58. Science

How do we write numbers in standard notation?

59. algebra

Can someone please help me, I'm stuck. Find all numbers for which the rational expression is undefined. 7/(3v+7)

60. Science-Biology

How does the blood cell reproduce?

61. Integers

When you add integers, why do you subtract? -9+5=-4. I do not understand why there is an addition sign. How do you know when you are suppose to subtract.

62. Spanish

I need help in breaking this down. Write a conversation of at least 6 sentences among two or three students. They introduce themselves, ask each other what they do, where they go and with whom. They explain what they like and dislike about their

63. help

Subtract. Simplify by collecting like radical terms if possible. 3sqrt18-3sqrt2 =6sqrt2 I did help.

64. Algebra

Can I get some help on this one I need to know if I got the right answer on this equation. Factor. v^2+12v+36 my answer was (v+6)^2 Can you check this for me.