# Questions Asked onSeptember 24, 2007

1. ## Physics

A cube is located with one corner at the origin of an x, y, z, coordinate system. One of the cube's faces lies in the x, y plane, another in the y, z plane, and another in the x, z plane. In other words, the cube is in the first octant of the coordinate

2. ## math

a company finds it can produce 5 heaters for \$1750, while producing 10 heaters costs \$2900. express the cost y, as a linear function of the number of heaters x. how do u begin 2 do this??

3. ## Engineering Economy

A young engineer wishes to become a millionaire by the time he is 60yrs old. He believes that by careful investment he can obtain a 15% rate of return. he plans to add a uniform sum of money to his investment program each year, beginning on his 20th

4. ## Honors Pre-Calculus

The latitude of Durham, North Carolina is 36 degrees North. About how far from Durham is the North Pole? Use 3963 miles for the radius of the Earth. I believe there is a formula of s=r times the feta angle, but you may have to convert the degrees to

5. ## Engineering Economy

The football coach at the Midwestern university was given a 5yr employment contract that paid \$22500 the first year and increased at an 8% uniform rate in each subsequent year. At the end of the first year's football season, the alumni agreed to buy his

6. ## can anyone tell me if im right if not, help me??

3. Assume that there are 12 map units between two loci in the mouse and that you are able to microscopically observe meiotic chromosomes in this organism. If you examined 200 primary oocytes, in how many would you expect to see a chiasma between the two

7. ## Physics

A spherical surface completely surrounds a collection of charges. Find the electric flux through the surface if the collection consists of each of the following. (a) a single +3.70 10-6 C charge N·m2/C (b) a single -2.90 10-6 C charge N·m2/C (c) both of

8. ## Physics

Speedy Sue during is driving at 30.0m/s and enters a 1 lane tunnel. She then observes a slow moving van 155m ahead traveling at 5.0m/s. She applies the brakes but can only accelerate at -2.0m/s^2 b/c road is wet. a) will there be a collision? How do you

9. ## Math Finance

Rex Corp's EBITDA last year was \$385,000 (= EBIT + depreciation + amortization), its interest charges were \$10,000, it had to repay \$25,000 of long term debt, and it had to make a payment of \$20,000 under a long term lease. The firm had no amortization

10. ## Statistics

A soft drink vending machine is supposed to fill cups with pop. The cups hold exactly 8 oz of liquid. Suppose the actual amount dispensed by the machine follows a normal distribution with mean 7 oz. If it is found that exactly 4 percent of the cups

11. ## literature

what is the climax of the story "Poison" by Roald Dahl?

12. ## need help with these two, please

Given that loci A and B in Drosophila are sex-linked and 20 map units apart, what phenotypic frequencies would you expect in male and female offspring resulting from the following crosses? (Assume A and B are dominant to a and b, respectively). A) AaBb

13. ## math

The smallest non-palindromic number whose square is a palindrome?

14. ## WORLD HiSTORY

EXPLAiN THE MUTUAL OBLiGATiONS OF THE FEUDAL SYSTEMS.

15. ## Chemistry

calculate the wavelength of the second line in the Brackett series (nf=4) of the hydrogen emission spectrum. Rh= 2.180e-18 any help please? i know its energy levels 4 to 6... but that is all.

16. ## science

theodor Schwann work alone to develop the cell theory?

17. ## Math

round 69.2456 to 2 decimal places i don't know how to do it

18. ## physics

a tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.0m/s. the car is a distance d away the bear is 26m behind the tourist and running at 6.0m/s. the tourist reaches the car safely what is the maximum

19. ## Physics

A boat moving at 15 km/h relative to water is crossing a river 1.5 km wide. The river flows at 5.0 km/h a) if the boat heads directly for the opposite shore, how long will the trip take? b)Where will the boat arrive on the opposite shore? c)If the boat is

20. ## Algebra

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home? I don't understand why it has to be converted to

21. ## stats

A soft drink vending machine is supposed to fill cups with pop. The cups hold exactly 8 oz of liquid. Suppose the actual amount dispensed by the machine follows a normal distribution with mean 7 oz. If it is found that exactly 4 percent of the cups

22. ## math

I was given a table that showed a simple random sample of adults' age and annual income living in suburb of a large city. a) What is the probability that a person chosen at random from those in this sample will be the 31-45 age category? The answer I got

23. ## Calculus

Solve. (A) 2sin^2 x = 1 (B) tan^2 x = 3

24. ## Help

The number of days in a lunar cycle

25. ## science

the spine of cactus and thorn of Bougainvillea is an example of homologous or analogous organs?(in evolution)

26. ## physics

A boat moving at 15 km/h relative to water is crossing a river 1.5 km wide. The river flows at 5.0 km/h a) if the boat heads directly for the opposite shore, how long will the trip take? b)Where will the boat arrive on the opposite shore? c)If the boat is

27. ## chem

A blood sample contains several different types of cells, each of which contains different combinations of specific ions and molecules. The cells are suspended in water, and the water also contains many molecules and ions. Which term or terms could be used

29. ## Algebra

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home? I got to this point xy=56 (x-8)(y+10)=56 I

30. ## science

what did robert Hooke first look at with his microscope? What name did he give what he saw?

31. ## Early Child Ed.

Can you help me with this question? Please tell me if I have chosen the most appropriate answer. 1. It has been recommended that teachers encourage limited-English parents to: A. speak their native language at home. B. only speak English in the home. C.

32. ## media

I have to make a powerpoint presentation between 6-9 slides including notes. In regards to making people recycle but I just do not know how to make so many slides for just recycling because there is not much information. Can someone help me with ideas or

33. ## MATH repost for Denzel

MATH - denzel, Monday, September 24, 2007 at 6:18pm how do you multiply fractions

34. ## science

what is an example of an unseen receiver of a force?

35. ## math

The smaller of two triangular numbers whose sum and difference are also triangular numbers?

36. ## chemitstry

I would like if you guys could answer me this question or give me a website where I cold find the answer. Lead, mercury and plutonium are very harmful elements, but when you cobined them with what do they become harmless? The element with which they must

37. ## French

I am not sure about the ordering of the words. Are the following correct? Do you speak French? Vous parlez francaise? I speak a little French. Je parle francais comme ci comme ca. My mom speaks french too. Ma mere parle francais aussi.

38. ## Math

Could you please show me how to do this? It says to use the elimination method. 2x-y+2z=-7 -x+2y-4z=5 x+4y-6z=-1

39. ## genetics

need help with these genetics problems. please help with what you can. thanks: Given that loci A and B in Drosophila are sex-linked and 20 map units apart, what phenotypic frequencies would you expect in male and female offspring resulting from the

40. ## finance

Imagine a country that is operating a fixed exchange rate relative to the dollar. The currency is trading at a forward discount of 50 percent, and rumors have been circulating that the government may pursue a large devaluation. Do you expect the

41. ## physics

Olympic champion Justin gaitlin set a new world record for 100.0 m sprint at the last lympics by clocking 9.86 s for the race.Calculate a)His average speed for the race b)Assuming that he accelerated uniformly for the first 4.86 s after taking off the

42. ## math

The number of feared by Pythagoreans, since it lies halfway between the only two integers that can be both the perimeter and the area of the same rectange

43. ## Early Child Ed.

Can you help me with this question? A parent-teacher study meeting should NOT include: 1. classes on setting up a home library. 2. information about the importance of play. 3. a "make it/take it" class on homemade reading materials. 4. a teacher-parent

i need to know the character of Rollie Tremaine in the story "President Cleaveland, Where are You?". i need to know his date of birth, hometown, hobbies, character traits and interesting facts about him.

45. ## Algebra

Calculate, in yards and feet, the perimeter of the playing field. Width=160 Length=360

46. ## SCIENCE

HOW IS WATER IMPORTANT FOR THE FUNCTION OF CELLS?

47. ## Math

Skylar bought seven books at \$12.95 each. How much did Skylar spend?

48. ## Algebra

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home? And please go through the steps and give me an

49. ## Algebra 2

6. Which of these points would be in the solution set of y < 2x – 5? The points would be in the shaded region of the graph: (2, -1) (7, 100) (100, 7) (0 , 0)

50. ## science

what did Anton ban Leeuwenhoek first look at with his microscope and what did he name it?

51. ## American republic

What was the main difference between hessian soldiers and patriots?

52. ## Parts of Speech

I had a list of 50 words to change the parts of speech of. I got most of them but I can't seem to find these anywhere. Conjure - change to a noun and adj. pernicious - change to a noun and verb diffident - change to a noun and verb lament - change to an

53. ## Math

I am a prime number between 40 and 50. If you add one to me the sum of the prime factors of that composite number is 11. What number a I.

54. ## Chemistry

An element consists of two isotopes of mass 36.4681 and 43.59612 amu. If the average atomic mass of the element is 40.741 amu, calculate the percent abundance of the first isotope.

55. ## math

lauren wants to put a border around the perimeter of her room.the room is 13feet long and has a perimeter of 48 feet.how long is the room?

56. ## algebra

Solve: 8t + 11 = 7t - 6 I get -17 for the answer, is that correct?

57. ## math

what is the equation passing through a)y=5.04x=50 y=6.13 x=100 y=8.24 x=150 y=10.3 x=200 y=10.45 x=250 b)y=7.63 x=50 y=11.3x=100 y=12.52x=150 y=14.45x=200 y=14.48 x=250

58. ## Review of Logs

I can't seem to get the answer to this; the answer key says log(base 8)6 Write as a single logarithm log(base 8)42log(base 8)3 - log(base 8) 6 I'm hoping the key is wrong :) Thank you for your help!

59. ## philosophy

if i define philosophy as an "Investigation of the nature, causes, or principles of reality, knowledge, or values, based on logical reasoning rather than empirical methods" what should i answer for the next question, such as "evaluate a definition of

60. ## geography

The waterway that extends north of the dead sea?

61. ## Statistics

I have a problem understanding how to set this problem up and get a solution: Consider a binomial experiment with n = 10 and p = 0.10. a. Compute P(x less than or equal to 2). b. Compute P(x greater than or equal to 1).

62. ## Communication

What guidelines appear less important to the message of a business document but more important to the message of an academic paper?

63. ## computer network

Any experts in communications/information theory can help me on this? Consider a fiber optic communication channel with cross over probability of 10^-2 and a wireless mobile channel with erasure probability of 10^-2. Calculate the mutual information

64. ## Literacy

Which would have the greatest negative influence on child literacy? single parenting, minority ethnicity, minimal parental education, or low socioeconomic status I am thinking low socioeconomic status, but I am not real positive. Please give help.

65. ## physics

Olympic champion Justin gaitlin set a new world record for 100.0 m sprint at the last lympics by clocking 9.86 s for the race.Calculate a)His average speed for the race b)Assuming that he accelerated uniformly for the first 4.86 s after taking off the

66. ## math

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home?

67. ## algebra

solve: 0.1p + 2.1 = 4.6p - 1.9 + 0.5p

68. ## math

Mr. Balk and Mr. Sullivan have created their own cookie factory. In their factory, they bake two and only two types of cookies: the Balkster and the Sullivander. The Balkster cookie requires 1 pound of cookie dough per dozen while the Sullivander requires

69. ## algebra

Solve: 0.1p + 2.1 = 4.6p - 1.9 + 0.5p I am getting all confused on how to solve this problem. can someone explain it to me?

70. ## english

How do i write out a reference for the following: It is a poem (it has an author and date) in one of my books (the book cover has a different authors then the one in the poem) this is what i think but i am not sure: authors name (date). title. In title of

72. ## Geography

describe and explain the atmospheric processes that influence global climate please could somebody point me in the right direction

In what industries would it make sense for government regulation that ensures all customers receieve some basic level of service?

74. ## math

Find the products. Use cancellation when possible. 7 x 4 - - 8 5

75. ## Math repost for Kenya

math - kenya, Monday, September 24, 2007 at 6:42pm the cds cost 9.95 each cd if the discount were only 1% what totaldiscount amount would Mr.knapp receive on the 15 cds

76. ## Algebra

A train takes 40 min to travel 18 mi. What is the average speed? ___mph

77. ## math

explain divisabilaty

78. ## Math

-731/2 - 86 =?

79. ## Algebra 1

Use the quadratic formula to find the x value that will solve the equation 2x^2-3x+10=0

80. ## Math

How do you know if it makes sense to connect the dots on a plot graph

81. ## English

What does this paragraph mean---what did Martin Luther abominate? "For when we have laid bare our conscience to our brother and privately made known to him the evil that lurked within, we receive from our brother's lips the word of comfort spoken by God

82. ## Robinson

need to know which sign is greater than:< or >

83. ## social studies

Why did the author write "I am the mummy" from the role of the mummy"

84. ## math

What is equivalent to 7/10? A.21/30 B.12/15 C.13/10 D.18/20

85. ## history

what is the orgin for maryland?

86. ## rational expressions

I was asked how rational expressions might be used in my daily life, and I am at a loss.

87. ## Thermodynamics

I am doing a lab and there is one question I can't get. We have the enthalpy of fusion of crystalline polyeythlene, mass, onset temperature and energy required for a phase change of both low density polyethylene and high density polyethylene. They as to

88. ## Engineering Economy

A realtor sold a house on August 31, 1997 for \$150k to a buyer in which a 20% down payment was made. The buyer took a 15yr mortgage on the property with an effective interest rate of 8% per annum. The buyer intends to pay off the mortgage owed in yearly

89. ## Social Studies

The world is divided into 24 of these? It strts with the letter "T"

90. ## Algebra 1

Determine the maximum and minimum values for the following set.10, –45, 46, 15, –42, –13

91. ## Algebra 1

Solve. 6(x + 9) + 4x = 5x – 6

92. ## Grammar

Dangling Modifiers If your baby does not like cold apple juice, it should be heated. Your answer: 1. If your baby does not like cold apple juice you should heat it. Dangling Modifiers When they are fresh, eating oranges can often keep away the cold virus.

93. ## Math

5 3/4 - (-8 1/2) = ?

94. ## philosophy

"So, if we have awakened, we are all philosophers by default, not by choice." In other words, we were born as philosophers, but waht do you think we are not? please help me to answer this question too. thx

95. ## math

what is 25 percent of 100?

96. ## chem

write the abbreviated notation 9based on noble gas) for S:

97. ## math

i need to write a multipication sentence for 2+2+2 1+1+1+1 i do not understand the commutative,associative,identity, zero and distributive property