Why does a sheep scratch himself

2. Algebra

The Circumference and area of a circle of radius r are givin by 2 [pie] r and [pie] r, respectively use 3.14 for the constant [pie] A. What is the circumference of a circle with a radius of 2 m? B.What is the area of a circle with a radius of 2 m? C.

3. Honors Pre-Calculus

You are traveling in a car toward a certain mountain at a speed of 80km/hr. The apparent size of the mountain is .5degrees. Fifteen minutes later the same mountain has an apparent size of 1 degree. About how tall is the mountain? I believe you must convert

4. science

What is matter? And four examples of objects/substances that would be classified as ''matter'' Please help me with this question and anyhting else you know about ''matter''

5. Math

I need someone to check my homework answers. I don't really know this stuff but i'm trying to do better in math this year. I didn't understand how to do some either. 1. √12 I got 2√3 2. √9a^3 I got 3a 3. √8 * √2 I got 4 4.3√50 I got 15√2 5.

6. Physics

A 72.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.80 m/s2, N (b) moving upward at a constant speed, and N (c) accelerating downward with an acceleration of

7. social studies

What is General Howe's plan for victory? Why?

8. Social Studies

Could someone give me some major differences and similarities between the Declaration of Independence and Patrick Henry's "Speech in the Virginia Convention"? I have to write a paper on this subject and just want to know the major differences and

9. American Literature

Could someone give me some major differences and similarities between the Declaration of Independence and Patrick Henry's "Speech in the Virginia Convention"? I have to write a paper on this subject and just want to know the major differences and

10. chem

Fe(s) + Cu^2+(aq)--> Fe^2+(aq) +Cu(s)(1) 2Fe(s) + 3Cu^2+(aq)--> 2Fe^3+(aq) +3Cu(s) (2) suppose that you use 1.110 g of Iron in this experiment what is the minimum volume of 1.0M of copper sulfate solution that you should add? Hint: since you don't know

11. Physics

Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.60 m. Two of the spheres have a mass of 2.20 kg each. The third sphere (mass unknown) is released from rest. Considering only the

What did the electrician say after fixing a light bulb at the top of the empire state bulding

13. math

A teacher drove 280 miles to attend a mathematics conference and arrived 1 hour late. The teacher figured out that, had she increased her average speed by 5 mph, she would have arrived on time to the conference. What was her average rate of speed?

14. social studies

Why MUST the Americans have a GREAT victory? Why? American Revolution

15. Social Studies

1. What countries/continents are included in the Americas? 2. What project researched the Mid- Atlantic ridge? 3. What city does the Prime Meridian split? 4. What city in England does the Prime Meridian split? 5. What hemispheres are the US located? 6.

16. Word Problem

A gallon of paint can cover an area of 385 square feet. How thick is the coat of paint in inches. HELP PLEASE!!! thanks

17. Infant and toddler

Keeping in mind that productive play is the pathway to learning for preschool-age children,what interesting materials and experiences might promote cognitive and language growth?( Including activities that promote literacy development)

18. Science

Show me how to choose an element and draw it's atomic model Labeling all the parts and particles

19. Physics

To hoist himself into a tree, a 71.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. He then pulls downward on the free end of the rope with a force of 367 N. Neglect any friction between the rope

You submitted what you thought was a masterful report to your boss over three weeks ago. The report analyzes current department productivity and recommends several steps that you think will improve employee output without increasing individual workloads.

21. MATH

WHAT IS A COLINEAR?

22. Physics

A box is sliding up an incline that makes an angle of 17.0° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.40 m/s.

23. Chemistry

I just need help with this one question, and then once I know how to do the steps, I think can do the others. --- The average atomic mass of argon is 39.95 u. Natural argon contains three isotopes: Ar-36 (35.967 u), Ar-38 (37.962 u)& Ar-40 (39.962 u). If

24. english

what is literature and why do we need literature

25. Canterbury Tales

I need to find an online version of the Canterbury Tales to read the Prologue. I tried three sites but they do not work or I don't understand them. Does anyone know any other websites to find the Canterbury Tales ?

26. Physics

In a supermarket parking lot, an employee is pushing ten empty shopping carts, lined up in a straight line. The acceleration of the carts is 0.080 m/s2. The ground is level, and each cart has a mass of 25 kg. (a) What is the net force acting on any one of

27. Social Studies

Nicolas Sanson drew an ancient Babylonian map of the known world on what? What was it drawn on, I am taking this to mean what type of paper, etc. The question reads as follows: An ancient Babylonian map of the known world was drawn on ________ and labeled

28. physics

In order to open the clam it catches, a segull will drop the clam repeastedly onto a hard surface from high in the air untill the shell cracks. If a segull flies to a height of 25 m, how long will the clam take to fall?

29. Math 11

The equation y= x^2-8 is translated 7 units to the left. Which equation describes the graph after it has undergone this translation? a) y=x^2-1 b)y=x^2-15 c) y=(x+7)^2-8 d) y=(x-7)^2-8 e) y=-7x^2-8

30. AP English 11

I need to write a comparison essay between The Catcher in the Rye and A Farewell to Arms. I'm having trouble coming up with a thesis because these books are extremely different. Any help would be appreciated. Thank You

31. Algebra 2

1. Give 3 points that lie on the line 4x-y=6. 2. Give 3 points that lie on the line 3x+2y=6. 3. Give 3 points that lie on the line y= -4. Can someone please help because I have no clue how to do these problems.

32. criminology

What are some physical factors, social factors, and environmental factors that my influence criminal behavior? What kind of criminal behavior might result from each factor?

33. Physics

A 8.70-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.400. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, N (b)

34. Physics

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,

35. u.s. government

what are the major advantages and disadvantages of government? what is the meaning of limited government?

36. word problem - I may have the format correct

Te perimeter of a rectangleular backyard is 6x+6 yeards. If the width is x yards, find a binomial that represents the length. would it be.. (6x+6)/x division?

37. Algebra 2

1. Give 3 points that lie on the line 4x-y=6. 2. Give 3 points that lie on the line 3x+2y=6. 3. Give 3 points that lie on the line y= -4. Can someone please help because I have no clue how to do these problems

38. chemistry

Fe(s) + Cu^2+(aq)--> Fe^2+(aq) +Cu(s)(1) 2Fe(s) + 3Cu^2+(aq)--> 2Fe^3+(aq) +3Cu(s) (2) suppose that you use 1.110 g of Iron in this experiment what is the minimum volume of 1.0M of copper sulfate solution that you should add? Hint: since you don't know

39. Geography

Explain why urban exclusion appears to be growing in large cities. I thought along the lines of large cities=large populations=larger observable spatial inequalities= more urban exclusion. Is this any help?

40. french

how do you say i brush my teeth at 7:30am

41. SOCIAL STUDIES

PLEASE GIVE ME A SHORT ESSAY ON 'DESERTS'.

42. Word Problem-Icky

Two sailboats are 9.8 miles apart and sailing toward each other. The larger boat sails 4 miles per hour faster than the smaller boat. The two boats pass each other after 0.7 hour. Find the speed of each boat. I cannot figure out for the life of me how to

43. Math

Choose four number from one to five, with reprtitions allowed, to creat the largest standard deviation possible.

44. Org Chem

When doing an acid-base extraction, there are certain rules when chosing the solvent that is to be used in extraction.. one being that it should have a low boiling point. I understand this to be so that the solvent (in this case, ethyl) can be removed

45. Math

A gallon of paint can cover an area of 385 square feet. How thick is the coat of paint in inches. HELP PLEASE!!! thanks

46. Physics

A 51.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.710 and 0.440, respectively. (a) What horizontal pushing force is required to just start the crate moving? N (b) What horizontal pushing force

47. Physics

A passenger is pulling on the strap of a 13.5-kg suitcase with a force of 67.0 N. The strap makes an angle of 34.0° above the horizontal. A 37.8-N friction force opposes the motion (horizontal) of the suitcase. Determine the acceleration of the suitcase.

48. Social Studies repost for Tiffany

SOCIAL STUDIES - Tiffany, Monday, September 17, 2007 at 4:31pm According to Article 1 Section 2 of the constitution, how were slaves to be counted when determining the number of congressional districts per state

49. MATH

on a compass,north has a heading of 0 degrees what is the heading when your going east,south or west

50. Algebra 2

The Goodyear Tire Company is testing a new tire. The tires are placed on a machine that can simulate the tires riding on a road. The machine is first set to 60 mph and the tires run at the speed for 7.2 hours. The machine is then set to a second speed and

51. Math

Could you help me with this? If there are penny, nickel and a dime are tossed what are the outcome for eact event? Pls help, Thank you. 1/3 for each coin.

52. MATH

DID Blaise Pascal help the map the foundation for the theory of probility

53. agricultural science

how many gallons does it take to equal one inch of rainfall

54. Algerba

would you expect a positive, a negative, or no association between the number of hours of daylight during a day and the number of hours of darkeness?

55. Am I doing Algerba right?

6a for a = 3 and a = -4 So is it A. 6a = 6*3 = 18? B. 6a = 6*-4 = -24?

56. physicssss

a uniquw type of baskettball is played on the planet zarth. During the game a plyer flies above the basket and drops the ball in from a height of 10m. IF the ball takes 5.0 s to fall find the acceleration due to gravity on zarth.

57. Algebra 2

Two sailboats are 9.8 miles apart and sailing toward each other. The larger boat sails 4 miles per hour faster than the smaller boat. The two boats pass each other after 0.7 hour. Find the speed of each boat. I cannot figure out for the life of me how to

58. Infant and toddler

Dramatic play allows children to explore many roles. What might some of these roles be and how does role playing influence psychosocial and cognitive development?

59. HHS 205

In what ways do laws like the Americans with Disabilities Act affect human services organizations?

60. Math

Suppose a large number of people take a take and every single student gets half of the answers correct. In this case, the standard deviation is: A) Equal to the mean B) Equal to the median C) Equal to zero D) Impossible to determine without more

61. language

i have a writing project due on verbal/linguistic. write a story, such as a day in the life of a pencil, in which narrate the writing process from the pencils ( or the writing objects)point of view. it says to describe your day as a student takes you

62. algebra 2 Equations and Inequalities

In 90% of the last 30 years, the rainfall at shell beach has varied no more than 6.5 of its mean value of 24 inches. Write and solve an absolute value inequality to describe the rainfall in the other 10% of the past 30 years.

63. Algebra Help

I am not sure how to set this problem up.. A car uses 12 L of gasoline in traveling 150 km. At that rate, how many liters of gasoline will be used in a trip of 400 km?

64. math

what is the answer for : q(-3)+3(2+q) i don't understand my homework plz help me

65. Algebra 1

Write the equation of the line with slope 4 and y-intercept (0,-5).Then graph the line.

66. science

kevin has a piece of aluminum which has a density of 2.7gms/cm3 and a mass of 63 grams what is the volume of the piece of aluminum

67. SAT -English

Hi here is a following sentence. I know what is wrong with it, but I can't find the word to replace the incorrect word. ________________________________________________________________________________________________________________ Intense preoccupation

68. algebra 1

Jaun drives to work. he averages 22mph, he returnes home averaging 32mph. total travel time is 2.25 hours. a. define a variable for the time Jaun takes to travel to work. write an exprension for the time it takes to return home. b. write and solve an

69. Algebra

I need help solving the following. Perform the indicated operatioons and write them in standard form. (-4 - squareroot of -36)^2

70. History

How exactly did the invention of the cotton gin affect the constitution? I know it increased the cotton production and slaves but i don't see how ti did anything for the constitution.

71. health

im doing an acrostic poem in health on good self esteem i need some help w/words or phrases on the letters n a p t i h l s e

72. Math

On a business trip a salesman traveled 40 mph for the first third of his trip and 50 mph for the remainder. If the entire trip took 4 hours and 20 minutes, how many miles did he travel? any help is grately appreciated!

73. chem

how would you make a 4% percent paraformaldehyde solution? Work: starting from 20% (diluted with PBS) V1C1=V2C2 (100)(20)=(x)(4) x=500 so add 496 ml of PBS (accounting for 4% paraformaldehyde) or would you add 500ml of PBS Thank you

74. algebra - Am i doing this right?

5y^3(y^5)2 _______________ 10y^5(y^2)^6 5y^3 * y^10 _______________ 10y^5* y^12 5y^30 _______________ 10y^19

75. last algebra question

P((1 + r)^2)^3 To simplify this expression would I distribute first or square the parentheses and tehn cube the numbers in the parenthesis?

76. AP English 3

How do I write a rhetorical precis for the article, "The Ashen Guy" by Thomas Beller?

77. Man My Algebra must be annoying

3m __ for m =20 and m = 1 5 __ 3 A. 3m = 320 / 5 = 64? b. 3m - 3 1/3 / 5 = 0.666?

78. social studies

what is a resource map

79. Social Studies

In June, 1777, who was in charge of the British's Northern Army and what is his plan?

80. social studies

What happens at the 2nd battle of Ticonderoga in July, 1777?

82. math

write an equation thirteen decreased by n is equal to 9.

83. General

Why might cramming the night befor cause a problem when taking exams?

84. Chemistry

compute volume and/ or weights of reagents to make the following solution. Desired concentration: 40% NaOH + 4% Na2S2O3 Desired quantity: 1500 mL Given: 90% w/w NaOH, pure Na2S2O3 I'm not sure how to do this so any help would be great. Thanks!

85. windows server 2003

**This question I don't understnad**If you do a full backup to a single tape on a Friday night and then an incremental backup to a single tape on all other days of the week (including the weekend), if a system failure occurs, what is the maximum number of

86. Word Problem

A quarterback and end play on their team. From the start of a play, Pete, the end, runs down the field at about 25 feet per second. Two seconds after the play starts, Phil, the quarterback, throws the ball, at about 50 feet per second, to Pete, who is

87. Math

Express this function in vertex form by completing the square: 3x^2 - 4x + 1 PLEASE SHOW STEP BY STEP!!!

88. Math

The mean of five whole numbers is 12. If you take away the smallest number, the mean is 16. What is the smallest number?

89. Elem. Ed.

Please look over these questions and my answers to see if I have chosen the most appropriate answer. 1. Luis is being introduced to the finger play "Friends at Play." It is very likely that Luis will: A. do the finger movements first. B. learn the words

w/2+7=w/3+9

91. Algerba

Evaluate the expression by substituting the givin values for each variable b - for A = -2 and b = 8 a So is it like this b - = -2 divided by -8 a

92. CHEMISTRY

How do I use the distribution coefficient to find the amount of a substance extracted?

93. Algebra

what is 3*-7a*-b for a=9 and b=-3?

94. science

What are some of the health problems associated with anorexia nervosa, bulimia nervosa, and binge-eating disorder?

95. math

on a compass,north has a heading of 0 degrees what is the heading when your going east,south or west

96. math

what do you call the numbers that cannot be arranged into 2 row arrays?

97. math

the number of quarts you need to buy to paint a room any room

98. MATH

WHAT IS AN NEGATIVE ANGLE

99. social studies

where was the first major battle of the civil war

100. Statistics

a little bit rusty on statistics, i generally know how to set up the problems but not how to solve. thanks for any help you can give, especially with the integration bounds I'm confused with. X & Y have a joint distribution, and the following is the joint

101. Algebra help

Would someone help me through this one...? (-10rs^9t4/2rs^2t^7)^3

102. Algebra

If an even is certain to occur, the probability that the event will occur is ___?

103. Algebra 1

Find the y-intercept. -7x-y=7

104. science

does the bubbles in coke disappear faster or does the bubbles in the sprite disppear faster?

105. English paper

i need to come up with a symbol for the them of "When you put effort into reaching your goals, you can succeed." but i cant think of any! pleas help! its due 2morrow!

106. Math

4 dice are rolled. What is the possible outcome for each event? Confused!!! Would you get an outcome of 4/6 or 2/3 Please HELP me!!

107. science

Systems in space are called blank science?

108. anatomy

what is the function of stratified columnar epithelium? I know it's found in ducts of large glands, but I just don't know its function.

109. science

THE PRACTICAL USE OF SCIENCE;APPLIED SCIENCE

110. physicssss

At six flags great adventure amusment park in new jersy, a popular ride known as "free fall" carries passangers up to a height of 33.5 m and drops them to the ground inside a small cage. How fast are the passengers going at the bottom of this eshilirating

111. math

The binomial x-3 divides exactly the polynomial x^3-2x^2+cx-12 and c is a whole number then c is what?

112. social studies

which are the 3 border towns of elmont?

113. History

What does my teacher mean by doing a profile of the Lincoln-Douglas debate of 1858?

114. Math

There are 4 quarterbacks and 6 centers on a football team that has 60 players. How many quarterback-center pariing are possible? I think there would be 4 possible but don't know if this is correct. Please help! Thank you in advance.

115. health

why is it so imporrtant to drink a lot of water when working out or doing sports

116. Infant and toddler

What are some adult interactions that support self control,compliance,and social competence and how do they benifit from clear guidence goals?

117. math

solve the following equation for x: 8x10^x=2e^x

118. math

solve the equation 3=4tan(2x+Pi/6) for x

119. general

what are some tips to help me earn better grades on my projects and papers.

120. Science

Metric System How do I know when to multiply and when to divide when converting to metric or from? Sample- 450km=______mi

121. Math

How many different four-digit numbers can you make using all the digits in each set only once? a. 1,2,3,4 b. 0,1,2,3 c. 0,0,1,2

122. Math

Still have trouble with this question. If four dice are rolled what is the possible outcome? Could it be something out of 24? Thank you for your help.

123. Health Manpower, Education 7 Financing Healthcare

Should the tuition paid by a medical student be considered the full and final payment on his/her education? Is society owned anything given the true cost is not paid for by students?

124. Lions Creek

What is a 12 letter word the is the observations involving descriptions based on instrument measurements

125. Social Studies

What was the name of our first Constitution?

126. Math

Mr.Lin gave \$3600 to his wife and kids. His wife got \$500 more than the first child. The second child got half of what the first child got, how much did the first child receive?

127. Science

What is a 12 letter work that has a t as its 5th letter that means an observstion involving desctriptions based on instrunent measurments.

128. Math

What is the smallest deviation you can figure, and when would that value happen?

129. Science

Should there be more or less exploration and mining on public lands in the United States? Explain your answer. Background: In completing this discussion question, you may want to list the pros and cons of allowing more mineral exploration and mining on

130. human bones

Im studying a handout on human bones for a quiz. This handout shows the leg bones being Tibia and Fibia. But which is which? Same for ulna and radius please.

131. algebra 2 Equations and Inequalities

In 90% of the last 30 years, the rainfall at shell beach has varied no more than 6.5 of its mean value of 24 inches. Write and solve an absolute value inequality to describe the rainfall in the other 10% of the past 30 years. how do I do this problem and

132. CT

How does our family employment size differ from our grandparents

133. Science

How can u spot the difference between an Alkali and an Acid in its name

134. Algebra 1

How to solve multistep equations with fraction involved?

Solve. -6x=6

136. management

Hello, can someone help me by discussing the importance of an administrator’s vision in turning the challenge into an opportunity?

137. helphelphelp

The binomial x-3 divides exactly the polynomial x^3-2x^2+cx-12 and c is a whole number then c is what?

138. chemistry

how can you find temperature of sodium?

140. Math- Linear Functions

Okay so suppose only dotted lines(rather that solid lines) border a solution region.The given linear objective function is Q=x+y, which is based on contiuous variables. Can the obejective function have a maximum or a minimum value??

The length of a rectangular swimming pool is 2x-1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters. (2(5)-1) (5+2) (10-1) (9* 7) 63 My answer is 63. Do you agree?

142. another problem for checking - algebra

P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial P(q + r/2)^2 represents the value of the investment after 1 year. Rewrite w/o parenthesis and eval if P= \$200 and r = 10% P(1 +

143. science

if a cyclist is traveling at 20km in a half in hour, is her average speed 1okm pher hour?

144. math

how would you make an equation for a decreasing linear relation?

145. Biology

Have to make a model of a cell with all its parts listed. Anyone have an ideal on what to make it out of?

146. Algerba

algebra is so confusing 1/8 (b - a) for a = 2 and b = 10 So is it 1/8 (b - a) = 1/8 (2 - 10)= 1/8 (-8) = -100?

147. physics question

If you are asked to calculate the accleration due to gravity, is that not a trick question? We did an experiment similar to Galileo's (cart down a ramp and measure time, distance, acceleration, and at diferent inclinations)...but if asked to find the

148. CHEMISTRY

I still don't get it. See question in previous post

149. Physical Education

Three Roles Describing What You Did In Each Of Them?

150. law

hi, im having trouble thinking of my own laws. can someone help me out. thank you very much. Some examples: Cell ban in cars, raising lowering an age limit (driving, voting retirement etc.)

151. Social Studies

What is the meaning of the 16th Amendment?

152. Algebra 2 (Angel Series)

I'm having trouble understanding the motion comparison word problems. Help!

153. Algebra 1

Write an expression that gives the value of the quantities asked for. Then pick a reasonable value for each variable, substitute it into the expression, and evaluate. 31. If t gives the number of hours you have hiked at s mi/hr, what is the distance

154. Chemistry

What is the accepted value of the height of a molecule of oleic acid? I cannot find it to do my percent error.