# Questions Asked onSeptember 27, 2011

1. ## Physics

A 0.28-kg stone is held 1.5 m above the top edge of a water well and then dropped into it. The well has a depth of 4.8 m. (a) Taking y = 0 at the top edge of the well, what is the gravitational potential energy of the stone–Earth system before the stone

2. ## Physics

A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30m/s at an angle of 33deg above the horizontal. Ignore air resistance. Calculate: a) the maximum heigh above the roof reached by the rock b) the magnitude of

3. ## chemistry

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of ammonia is consumed by the reaction of 4.5g of oxygen gas? Round your answer to significant digits.

4. ## Grade 12 Data Management

There are 12 questions on an examination, and each student must answer 8 questions including at least 4 of the first 5 questions. How many different combinations of questions could a student choose to answer?

5. ## CHEM AP

Complete and balance the following equation. MnO4^‾ (aq) + CH3OH(aq) ¨ Mn^2+(aq) + HCO2H(aq) (acidic solution) I KNOW ITS a redox, so i followed the steps and got: 4MnO4^- (aq) + 5CH3OH (aq) + 11H2O (l) + 12H^+ (aq) ¨ 4Mn^2+ (aq) + 5HCO2H (aq) can

6. ## science - physics

A plane flies with a velocity of 52 m/s east through a12 m/s cross wind blowing the plane south. Find the magnitude and direction (relative to due east) of the resultant velocity at which it travels.

7. ## social studies

give me examples of physical features?

8. ## physical science

give one word/term for each of the following descriptions. 1.A substance that donates electrons in chemical reaction. 2.The formula showing the simplest whole number ratio in which the atoms combine to form a compound.

9. ## Algebra2

There are 52 blades of grass in 2 square inches of lawn. there are 580 blades of grass in 8 square inches of the same lawn. what equation models the y blades of grass found in x square inches of lawn?

10. ## statistics

at a certain college, there were 700 science majors,100 engineering majors and 500 business majors. if one student was selected at random, the probability that they are an engineering major is?

Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. "As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be processed."

12. ## pre cal

please help don't understand this...Assume f(x) = 2x + 8 and g(x) = 5. What is the value of (f + g)(3)?

13. ## geometry

measure of angle ABC=4x-12 measure of angle ABX=24 BX bisects ABC solve for X and find the measure of angle ABC **page 48 # 11 of prentice hall,california geometry**

14. ## Body systems/ terminology

Which of the following best describes the overall function of hormones? A. To control physiological processes in the body B. To provide a pathway for nerve messages C. To stimulate the growth and maturation of body organs D. To determine masculine or

Is the subject line "Improving Customer Service" appropriate in a message to superiors? a. Yes, because it focuses on solving the problem. b. No, because the word "service" makes the subject line seem negative. c. No, because the boss is likely to think

16. ## physics 11

A 1200 kg car on a horizontal surface starts from rest and accelerates uniformly to 72 km/h in 20.0 s. Friction exets an average force of 450 N on the car during this time. a) what is the net work done on the car b) how far does the car move during this

17. ## organic chemistry

what compound would form if acetyl salicylic and sodium hydroxide are reacted?

18. ## Geometry

Write a two column proof. Given: angle STV is congruent to angle TVU, angle STU is congruent to angle UVS. Prove: Angle SVT is congruent to angle UTV.

19. ## Math

A basketball team won 28 more games than they lost. They won 35 games, how many games did they play? Please help, Thanks!

20. ## English

what is the adjective in sentence "Sam sees a yellow bus"

21. ## physics

A Christmas tree ball will break if dropped on a hardwood floor with a speed of 2.0 m/s or more. If it falls 15 cm from a tree branch to the floor, will it break?

22. ## chemistry thank you

concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid

23. ## chemmistry

30.ml of carbon tetrachloride (density=1.595g/ml)is added to a graduated cylinder that weighs 47.98 g. what will be the weight of the cylinder plus the carbon tetrachloride?

24. ## psychology

Some children require a "carrot on a stick" to get them to clean their room, behave well in public places, or make good grades. This suggests that?(a.) the incentive approach pulls the child toward the goal. (B.)the drive-reduction approach guides the

25. ## psychology

Some children require a "carrot on a stick" to get them to clean their room, behave well in public places, or make good grades. This suggests that?(a.) the incentive approach pulls the child toward the goal. (B.)the drive-reduction approach guides the

26. ## math

3000 exercise books are arranged in 3 piles.The first pile has 10 more books than the second pile.The number of books in the second pile is twice the number of books in the third pile.How many books are there in the third pile?

10x10x(8x8)=

28. ## trig

Find a cofunction with the same value as sin 19 degrees

WHATS THE ANSWER TO 10 + ? = 20 + 110

30. ## Geography

What are the capitals of the two states that border both the Mississippi and Ohio Rivers?

31. ## chemistry

Suppose we want to charge a flask with 4.0 g of sugar. We put the empty flask on a balance and it is determined to weigh 190 g. Enter the weight we would expect to see on the balance when we're done adding the sugar.

32. ## chem

Suppose it takes 35 min for 4.0 g of sugar to completely react with another reagent added to the flask. What would the reaction rate be?

33. ## algebra find the outlier

i need to find the outlier of each set of data. and I need to describe how the outlier affects the mean? 1) 75 72 74 46 77 70 80 68 2) -15 -12 -19- 0 -20 -14 3) 5.3 5.1 5.2 14.7 5.8 5.9 5.4 4) 4 -1 -16 2 0 -3 6 -2 i got for the outlier the highest value

34. ## computer science

Write a declarations and input statements necessary to read each of the following sets of data values into variables of the appropriate types. You choose the names of the variables. In some cases, punctuation marks or special symbol must be skipped. a. 100

35. ## Chemistry

What is the oxidation number of chromium in K2Cr2O7? I know that K = 1 O=-2 so 7*-2=-14 I do not know what to do now. Thank you for your help!

36. ## history

Was the Declaration of Independence a conservative or liberal document? According to the 18 century definition of conservative and liberal.

37. ## physics

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

38. ## physics

an empty coal car is moving along the tracks to a loading chute a 7km/hr., the mass of the empty car is 2000kg what is the speed of the loaded coal if the total mass of the car is now 10000 kg? give you answer in meters per second.

39. ## Math

The riddle of my paper is asking "What Do the Fans Sing at University of California Football Games? Please help me out. The page is 75.

40. ## math

how do you find the square root of 57 and then round to the nearest tenth

41. ## Pre-Calc

Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330

42. ## Social Studies

How did Henry the Navigator help more people explore??

43. ## calculus

If an equation of motion of a particle is given by s(t)= Acos(ùt + ä), the particle is said to undergo simple harmonic motion. Find the velocity of the particle at time t. When is the velocity 0?

44. ## Physics

A person pushes on a 62-kg refrigerator with a horizontal force of -256 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.61. (a) If the refrigerator does not move, what are the magnitude and

45. ## maths

an isosceles triangle is such that each of the base angles is twice the vertical angle. Find the angles of the triangle

46. ## trig

Suppose that the point P(13,-30) is on the terminal side of the angle theta in standard position. What is sin(theta)? Give your answer to the nearest thousandth

47. ## Pre-Calc-Please check I'm desperate

Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this

48. ## Math

Why did the cow keep jumping over the barrel

49. ## chemistry 1

From data below, calculate the total heat (J) needed to convert 0.757 mol of gaseous ethanol (C2H6O) at 151°C and 1 atm to liquid ethanol at 25.0°C and 1 atm. Boiling point at 1 atm 78.5°C cgas 1.43 J/g·°C cliquid 2.45 J/g·°C ΔH°vap 40.5 kJ/mol

50. ## math

Six hundred pennies are placed in a row. If every other penny is replaced by a nickel and every third coin is replaced by a quarter, what is the final value of the 600 coins?

51. ## Chemistry

Hard water contains Ca ,Mg ,Fe and , which interfere with the action of soap and leave an insoluble coating on the insides of containers and pipes when heated. Water softeners replace these ions with Na. If 1100. of hard water contains 0.021 M of Ca and

52. ## statistics

1. On final examination in Business Law, the mean was 68 and the standard deviation was 12. Determine the standard scores of students receiving marks of 50?

53. ## Chemistry

Search: How much energy (in Kj) is relased when 25.0g of ethanol vapor at 93, is cooled to -10? Ethanol has a melting point of -114.5, bp of 78.4, specific heat= 2.10J/g, heat of fusion =4.60Kj/mol, specicic heat= 1.9j/g, heat of vaporization = 38.56Kj/mol

After completing your study reading, it is vital that you complete which of the following steps? A. answer question B.Go back and read all subheadings again C. complie neat and detailed notes. D. Review and rehearse the main points you just read. i got D

55. ## math

Mr. and Mrs. Smith each bought 10 raffle tickets. Each of their three children bought four tickets. If 4280 tickets were sold in all, what is the probability that the grand prize winner is: a. Mr. or Mrs. Smith? b. one of the 5 Smiths? c. none of the

56. ## math

show25 broken key is 5 show in 3 ways

57. ## math

suppose ua penguin eats about 5 pounds of akrill aday.about what number of krill does the penguin eat in 100 days (hint :1pound =16 ounces)?

58. ## physics

an arrow is shot from a cliff at an angle of 0 degrees with respect to the vertical at a speed of 30m/sec. It takes 4 seconds for the arrow to hit the ground. how high is the cliff?

Sentence for the word BEATIFICALLY?!?

60. ## chem

the element nitrogen and magnesium react to give magnesium nitride according to the balanced equation N2 + 3Mg = Mg3N2 suppose you have 0.3616 mol of n2 1-how many moles of mg are needed for complete reaction? 2-what mass of Mg3N2, in grams can be

61. ## calculus

Two lines through the point(1,-3) are tangent to the curve y=x2. Find the equations of these two lines and make a sketch to verify your results. Thank you

62. ## physics

A force of 1.35 N pushes against an object with a mass of 0.16 kg for 4.00 min. The object does not move. What is the work done on the object by the force?

4/x^2 - 4x + 3 < 5/x^2 - 9 This is a rational inequality. it is 4 divided by x squared minus 4x plus 3 is less than or equal to 5 divided by x squared minus 9. Please help!!!

64. ## chem

mercury melts at -38.87 c. what is its melting point in f ?

65. ## statistics

for a distribution standard deviation=10.If every item is increased by 2 then what will new standard deviation?

66. ## us history

Identify the political, social, and economic aspects of Reconstruction?

67. ## chem

a piece of (density= 10.5 g/ml)dropped into water displaces 21.56 ml of water. what is the mass (in grams) of this piece of silver?

68. ## science

why are minerals important and what are 2 examples

69. ## statistics

for a distribution standard deviation=10.If every item is increased by 2 then what will new standard deviation?

70. ## social studies

what are the continents that are entirely in the southern hemisphere

71. ## 2nd grade math homework

does the broken key 5 means not to use the number5

72. ## physics

The sum of two forces, one having a magnitude of 8 N acting due west and other having a magnitude of 6 N acting due north is ___. What is the magnitude of that force? Answer in units of N

73. ## chemm

find the density of ethyl alcohol if 80.0 cm^3 "weighs" 63.3g.

74. ## biology

Evidence of bacteria-like life has been found in fossils that date back between 3.4 and 3.5 billion years. Can you find out what the oldest evidence of multi-celled life is?

75. ## MATH help

a certain radioactive isotope has a half life of approx 1,300 years . How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount. So I am not sure where to put the 1,300 1,300=2600*e^t or

76. ## science

what is a life cycle for a frog

77. ## History

Is it a false statement to say that every single group of people who have wished to establish their independence and their own individuality from a corrupt form of government will eventually succeed at doing so? Like with segregration and everything and

78. ## chemistry

a rectangular block of the element barium is 5.00cm long , 3.00cm wide and 1.00cm high and it weighs 52.5g. what is the density of the element barium?

79. ## chemistry

How many milliliters of a stock solution of 5.40 M HNO_3 would you have to use to prepare 0.150 L of 0.510 M HNO_3?

80. ## Is this write or wrong?

Which of the following is an example of active readiing? A.skimming over information and taking notes. B.reviewing a chapter, question as you read, and review notes. C.speed reading and taking notes in your own words. D. Both B & C. i got B what do you

81. ## math

The lengths of two sides of a triangle are 6cm and 4cm and the angle between them is 130degree. What is its area?

82. ## sociology HS 2nd year

What are some of the rules that the caste system imposes?Give me the ans in point ways.

Which of the following statements explains why threats are NOT effective for motivating people? a. Threats reduce tension. b. Threats ensure that appropriate actions are not abandoned. c. Threats produce permanent change. d. Threats provoke

84. ## chem

given that 140.ml of chlorine gas weighs 0.450 g find the density of chlorine in grams per liter(g/liter).

85. ## English

Thank you. I just wanted to know if everything is OK. Which sentence should I include (4 or 5)? 1) At the end of the lessons we walked in (??) Dublin and also visited some museums. 2) On weekends we made excursions. 3) On a Saturday we went to Kilkenny, a

86. ## calculus-derivatives

y=cos^3(12theta) find derivative using chain rule

87. ## Physics

An automobile accelerates from rest at 1.3 m/s 2 for 19 s. The speed is then held constant for 23 s, after which there is an acceleration of −0.9 m/s 2 until the automobile stops. What total distance was traveled? Answer in units of km

88. ## Calc BC

1. Find the indefinite integral. Indefinite integral tan^3(pix/7)sec^2(pix/7)dx 2. Find the indefinite integral by making the substitution x=3tan(theta). Indefinite integral x*sqrt(9+x^2)dx 3. Find the indefinite integral. Indefinite integral

89. ## Honors Physics

An automobile accelerates from rest at 1.3 m/s 2 for 19 s. The speed is then held constant for 23 s, after which there is an acceleration of −0.9 m/s 2 until the automobile stops. What total distance was traveled? Answer in units of km

90. ## statistics

M=76 then what is the z-score for the sample mean?

91. ## Chemistry

Sam Student calibrates a flask with water at 20C. Patricia Pupil borrows the flask and Sam's calculated volume for the flask, and uses it to do her unknown at 25 C. What, if any specific effect will this have on the results of Patricia's density

92. ## Social Studies

What are the purposes of a Government. Here are some purposes that I already have : Gov't provides rules/laws for the country, Rights and freedoms, puts limit on what we can and can't do.

93. ## Math

If B is between A and C, AB=6x, BC=8x and AC=42, what is the value of x?

94. ## math

simplify the following problems. show all work 1) -1[-2(-3)^3]^2 2) -3{3-2{10-3(-2)^2}^2]^2 3) -3[4-7(-3-5)]-(-5)^2

95. ## Math

If B is between A and C, AB=3x-1, BC=2x+4 and AC=38, what is the value of AB?

96. ## math

simplify the following problems. show all work 1) -1[-2(-3)^3]^2 2) -3{3-2{10-3(-2)^2}^2]^2 3) -3[4-7(-3-5)]-(-5)^2

97. ## Pre-Calc P lease check

Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330

98. ## MATH

GIVE AN EXAMPLE OF THE SUM OF 2 BINOMIALS THAT IS A BINOMIAL

99. ## Geometry

the measure of an angle is 7 less than 10 times its supplement

100. ## chemistry

What is the mass of 1.2 grams of oxygen if it occupies a volume of 500 cubic centimeters at s.t.p?

101. ## physics

A 70.8 kg man is standing on a frictionless ice surface when he throws a 2.3 kg book at 10.5 m/s. With what speed does the man move across the ice as a result?

102. ## Science

if 1.2 g of sodium metal is reacted with 2 mL of H20, how many grams of NaOH will be produced

103. ## math

if a bag contains 6 red and 4 blue marbles and one is taken out and not put back and another is taken out is the problility that both are red

104. ## physics

into which part of the fridge-freezer will the rate of heat transfer be greater?

105. ## Is this write or wrong ?

By spending 5 to 15 minutes following the ten steps of study reading , you should improve your absorption and retention of the information by: A. 15% - 25% B. 25% - 50% C. 30% - 40% D. 50% - 60% i got D what do you think?

how many periods are there in the main body of the periodic table?

How many supporting details should you develop to back up your thesis? A. Four B.five C.three D.As many as you want I got A. But now im thinkiing its C But ima stay with my first answer which is C What do you think?

108. ## english

Each of the following exercises shows the original source, and then a student’s sentence and/or citation about that source. Each sentence and each citation has at least one thing wrong with it (most have more than one). Correct each of them Source C: An

109. ## statistic

For a given month, a random sample of 30 sales girls from a superstore has a sample mean of salary of RM 800 with standard deviations of RM 140. Estimate the mean monthly salary for all employees using the 95% confidence interval.(what does mean of 95%

110. ## Calculus

tan^-1 (x^2 y) = x+xy^2

111. ## math

i am two-digit even number between 60 and 65.my two digits add up to 10.what am i ?

112. ## physics

what is the average velocity of a vehicle that uniformly accelerates from rest to 38 fps?

113. ## chemistry

a speed sign in England reads 30. km/hr,over what speed in mph (miles/hr) would you get a ticket?

114. ## managment

Toyota used to sit on top of the world. It basked in the reputation of building high-quality cars efficiently. It enjoyed unprecedented growth, even surpassing General Motors as the largest car manufacturer in the world. But all of that came tumbling down

134. ## math

i have three digits. the ones dijit and the ten's dijits are the same. the ten's digit is 3 less thantheb hundreds digit. the hundreds digit is 6. what am i ?

135. ## math

emilio can type 60 words in 1 minute marg can type half as many how many total words can emilio and marg type in 3 minutes

136. ## algebra find the mean of each set of data

1) -6 3 -2 6 7 -3 -5 8 2) -17 32 -2 6 7 -3 -5 8 im not sure how to do this i know i need to add up but not sure if im right 1) 40 2) 80

137. ## statistics

according to a survey of men interviewed 20% had asked for a raise and 59% of the man who asked for a raise received the raise if a man is selected from the survey population of men fine the folowing proability P(man asked for raise and received raise)

138. ## binomials

GIVE AN EXAMPLE OF THE SUM OF 2 BINOMIALS THAT IS A BINOMIAL

139. ## Math

An aircraft flew 3hrs with the wind. The return trip took 4hrs against the wind. If the speed of the plane in still air is 180mph more than the speed of the wind, find the wind speed and the speed of the plane in still air.

140. ## physics

At t=0 seconds, a ball is located at 1.9 m. At t=10 s,the position is 9.7 m . Calculate the position at t=5.8 s

141. ## Social Media

What protest and of-the-moment commentary songs have been most influential and successful at getting their point across?

142. ## physics

A horizontal spring attached to a wall has a force constant of 800 N/m. A block of mass 1.10 kg is attached to the spring and oscillates freely on a horizontal, frictionless surface as in the figure below. The initial goal of this problem is to find the

143. ## Math

Jan is on year younger than her brother Bill and on year older then her sister Sue. The sun of the three children ages is 57. How old is each child.k

144. ## CHEMISTRY

what volume of .0250 M MgCl2 should be diluted to 250.0 mL to obtain a solution with [Cl]=.0135?

145. ## Math

Layla is sorting 18 spoons into stacks of 5.One stack is not complete.How many spoons are in that stack?

146. ## physics

Jason drives due west with a speed of 55.0km/hr for 30.0 min, then continues in the same direction with a speed of 95.0km/hr for 2.00 hr, then drives farther west at 40.0km/hr for 10.0 min. What is the magnitude of Jason's average velocity

147. ## civics

what is a good strategy for remembering 2 paragraphs of the constitution?

148. ## math

how do you solve f(x)=(x-2) squared

149. ## physics

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

150. ## SCIENCE (NEED NOW!!!!)

NEED NOW!!!!!!!!!!!!!! how many groups are there in the periodic table? and how many periods are there in the periodic table?

151. ## social studies

what are human features

152. ## science

what we can made out of trees?

153. ## chemistry 1025

a shoe box measures 12.0 inches by 5.5 inches by 3.5 inches. calculate its volume in cubic centimeters.

154. ## Physics!

A quarterback takes the ball from the line of scrimmage, runs backward for 10 yards, and then runs sideways parallel to the line of scrimmage for 4 yards. At this point, he throws a 32 yard forward pass straight down the field. What is the magnitude of the

155. ## Calculus

ã27 + ã12 - ã32 - ã8 ã27 = ã3*3*3 = 3ã3 ã12 = ã2*2*3 = 2ã3 ã32 = ã2*2*2*2*2 = 4ã2 ã8 = ã2*2*2 = 2ã2 3ã3 + 2ã3 - 4ã2 - 2ã2 Here is where I get sort of confused. Because the like terms are 3. And so

156. ## english

in the book the diary of Anne Frank the diary provides anne with a means of working through her internal conflicts. provide two examples of personal conflicts Anne is struggling with

158. ## English

Can you please check if everything is OK in these sentences? Thank you. 1) He can’t sleep for hours but then he falls asleep after drinking the drugged water. When he wakes up he can see the size of his prison and realizes that the pit is about half the

159. ## math

simplify the following problems. show all work 1) -1[-2(-3)^3]^2 2) -3{3-2{10-3(-2)^2}^2]^2 3) -3[4-7(-3-5)]-(-5)^2

160. ## statistics

if there are 12 likely events, the the probability of the first one occuring is 1/12> True or false

161. ## calculus

given the graph of f(x) = x sinx, 0

162. ## MATH

I AM A FOUR-DIGIT EVEN NUMBER. THE SUM OF MY DIGITS IS 15. THE ONES DIGIT IS ONE MORE THAN TENS DIGIT,WICH IS ONE MORE THAN THAN THE THOUSANDS DIGIT. THE HUNDREDS DIGIT IS THE SUM OF THE ONES AND THOUSANDS DIGITS. THE TENS DIGIT IS 3. WHAT AM I ?

163. ## US History

Does any one have ideas to this question? Compare and Contrast the 1920s with the prosperity and difficulties we have in 2011. Be sure to use specific examples. My ideas : 2011 : Secularism , Gay marriage rights, abortion rights still on going, Legalizing

164. ## statistics

True or false> in a physics class there are 9 juniors and 21 males. Then there must be 30 male juniors in this class.

165. ## Social Studies

Do Lobbiest/Single interest groups help or hinder goverment. One dvantage I have is that they provide funds for the government, and one disadvantage I have is that they sway the government.

166. ## Trig!

The identities cos(a-b)=cos(a)cos(b)sin(a)sin(b) and sin(a-b)=sin(a)cos(b)-cos(a)sin(b) are occasionally useful. Justify them. One method is to use rotation matricies. Another method is to use the established identities for cos(a+b) and sin (a+b).

167. ## Enghlish

What is the simple subject in this sentence: Do all those television ads feature talking pandas?

When is the best time to read review or discussion questions? A. Immediately after you have finshed all of the reading. B. After you write your notes. C. Before you begin any details reading. D. Throughout your detailed reading. i got A what do you think?

169. ## 7th grade social studies

what are some unique facts about the Acoma pueblo? if you are going to say anything about looking in my textbook, well there is no information in ther. and i looked at some websites and they don't provide much except some original stuff. Please help!!

Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? a. "Let us know if model #A01 would be a suitable substitution." b. "Our layaway plan will enable you to purchase all the clothes the children need for

When you are writing subject lines for negative messages to peers and subordinates: a. put the topic, but not your action on it, in the subject line. b. put the topic, including your action on it, in the subject line. c. do not include the topic in the

172. ## math

there were 36 hheads and 104 legs in a group of horses and riders. how many horses were in the group? how many riders were in the group?

173. ## math

to grandma's house -scott and his family live 15 km south of grandma. -steffi lives 20 km north of byron -robin lives 5 km south of scott -byron lives 10 km north of robin -caitlin lives 15 km south of byron Question: how far does each liv from grandma?

174. ## Fractions

Convert to fractional notations 3 3/10

175. ## physics

a European farm has a land area of 0.425km^2. determine this area in acres . 1.000 acre =43,560ft ^2

176. ## English

the design of a document reflects on the writer in terms of all of the following except: A. social status, B professionalism, C. competence, D. credibilty

177. ## physics

IF A RUNNER RUNS THE 100 METER DASH IN APPROXIMATELY 9.7 SEC, WHAT IS THE AVERAGE SPEED OF THE RUNNER IN MPH?

178. ## science

what are the pros and cons of controlled experimentation

179. ## algebra

sam mowed half of the yard on friday and half of the remaining grass on saturday what fractional part of yard still needs to be mowed

180. ## physics

A spring has a force constant of 50 N/m. The spring is compressed by 0.4 m. How much energy has the spring stored?

181. ## Algebra

At noon, your family starts out .from Louisville to go to Memphis driving at 40 mi/h. Your uncle leaves Memphis to come to Louisville two hours later. He is taking the same route and driving at 60 mi/h. The two cities are 380 miles apart. At what time do

182. ## trig

Find all values of x in the interval [0, 2π] that satisfy the equation. 6 sin2(x) = 3

183. ## Fractions

Hi Sue, That's the same answer I got, but for some reason I got it wrong on one of my test and I'm not sure why.

A shopper pushes a cart 43 m south down one aisle and then turns 90.0° west and moves 15 m. He then makes another 90.0° turn and moves 10 m. (a) What is the largest possible displacement of the shopper? ______ m _____° counterclockwise from west (b)

185. ## Chemistry

1. Which of the following will result in a chemical change? A. Melting ice to obtain water B. Evaporating alcohol into vapor C. Drying wood in a shed D. Burning coal in a furnace(My answer) 2. A salt is obtained as a reaction between A. a nonmetal and a

186. ## :)

simplify the following problems. show all work 1) -1[-2(-3)^3]^2 2) -3{3-2{10-3(-2)^2}^2]^2 3) -3[4-7(-3-5)]-(-5)^2

187. ## chemistry

2NaCl+2H2O >>2NaOH+H2+Cl2 if 1.9×10^6 (1900 metric tons) of Cl2 produced daily, estimate the quantities of H2 produced.

188. ## chemistry

A 8.00 M solution of hydrochloric acid is provided. You need to make 25.0 mL of a 0.490 M HCl solution. What volume, in mL, of the 8.00 M solution should you use?

four basic rights that form the foundation of capitalism

Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? a. "Let us know if model #A01 would be a suitable substitution." b. "Our layaway plan will enable you to purchase all the clothes the children need for

If you cannot recall what you have just read, it is most likely because: A. you did not ask questions while reading. B. You were passively reading. C. The information was too difficult to fully understand. D. Both A & C. i got B what do you think?

192. ## Science

Describe the correlation that exists between the density of a liquid and the float height of a dowel in that liquid.

193. ## English

What is the meaning of this quote and how does it relate to the King Lear play? Give me your hand. You are now within a foot Of th' extreme verge. For all beneath the moon Would I not leap upright.

194. ## Biochem

How many silver coins (weighing 26g each) would it take to provide 5 moles of silver(Ag).

195. ## science

if you filled a 150ml container w/100ml of substance and the substance quietly filled the container what would it be

196. ## News

I need this unscrambled: jjj.sdyyufpzrevryyt.ttfz/oannpnra

197. ## 1234

Do Lobbiest/Single interest groups help or hinder government? And then say one advantage I have is that they provide funds for the government, and one disadvantage I have is that they sway the government.

Which of the following is considered plagiarism? A. copying someone eles's work. B. using a statistic and forgetting to give credit to the source. C. Buying a pre-written essay from the internet and using it as your own. D. All of the above. I got D am I

199. ## physics grade 11 one word term

one word/term. 1.3.The minimum amount of energy required to start a reaction. 1.4.The distance between the centre of a lens and its focal point. 1.5. The type of image formed on a screen when light rays converge.

200. ## U o p

6. What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the importance of that distinction.

201. ## Physics

In physics, how do you solve for the magnitude in 2-D kinematics and what are the x and y-components?

Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. "As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be processed."

203. ## Chemistry

An unknown element reacts with bromine to give bromide, MBr3. If 2.809g of the unknown element gives 27.765grams of MBr3, what is the element? ( give the symbol ) I don't understand the M in the MBr3...can someoen please help me with this question ASAP

204. ## precalc

find two functions f and g such that (f+g)(x) = 5 and domain of f + g is [0, infinity)

Which sentence presents an alternative in appropriate way? a. "The 11 a.m. flight is completely sold out, so I booked you on the 2 p.m. flight. Hopefully that will work for you." b. "We are out of the red units, so we went ahead and shipped you 12 green

206. ## Physical Science

True or False. To a scientist, work is done when a force is exerted through a distance.

207. ## Accounting-HELP ME!

A company purchased machinery for $660,000 on May 1,2008. It is estimated that it will have a useful life of ten years,salvage value of$45,000, production of 350,000 units, and working hours of 60,000. During 2009 the company uses the machinery 3,050

208. ## College physics (simple)

Two blocks (one on top of the other), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant velocity. (a) Find the

Crystal agreed to serve on a company's advisory board and now has to contact them to say she cannot attend a scheduled meeting where she was to be one of several key speakers. What should she do? a. Let the company know she cannot attend and that they will

210. ## College physics (simple)

Two blocks (one on top of the other), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant velocity. (a) Find the

211. ## Pre-calc

square root(x+1)+ square root(x-1)= square root(2x+1)

plagiarism is often times described as: A. An honest mistake B. literary threft C. cheating D. both B & C i got C.Is it right? What do you think?

213. ## physics

A car travels along a straight stretch of road. It proceeds for 14 mi at 50 mi/h, then 28.3 mi at 48 mi/h, and finally 37.4 mi at 38.3 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h Can u show the steps and

214. ## science

Can you protect a falling egg?

215. ## physical science

17. In the Mass in Motion lab, you rolled a ball down a ramp to see how far it moved a cup. What did this experiment demonstrate? (Points : 3) An object´s momentum increases with velocity. An object´s momentum decreases with velocity. An object´s mass

216. ## Pre-Calc

Please check my answers;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not

217. ## college math

please help me write the equation and solve for it. 1).in a basketball game, eric made half as many free throws as dan. if the total number of free throws made by both men was 18, how many free theows did eric make?

218. ## math

estimate the quotient 2 divide 704

219. ## English

I urgently need to check these sentences. I included an alternative in brackets.Thank you. 1) I went to Dublin two weeks ago with the school. (better with other students from my school and two teachers) 2) I attended a summer course in Dublin for two

220. ## Math

How you multiply/divide negative numbers,negative with positive numbers?

221. ## MATH HELP!!!!

3000 exercise books are arranged in 3 piles.the first pile has 10 more books than the second pile.the number of books in the second pile is twice the number of books in the third pile.how many books are in the third pile?

In order to change information from useless facts into information you can absorb and retain , You should do which of the following? A. Ask questions B. Draw conclusion C. Anticipate information to come D. All of the above i got D what do you think

223. ## chemistry

What is the concentration, in units of molarity, of a 350 mL solution containing 0.298 moles of sodium chloride in water?

224. ## Math

The basketball team won 28 more games than they lost. If they won 35 games, how many games did they play? Thanks

What is the most important key to an effective essay? A. A focused thesis sentence. B. Five paragraphs in the body. C. interesting supporting details. D. A conclusion sentence. I got A. Is it right? What do you think?

226. ## math

how many feet are in 6,756?

227. ## 7th grade social studies for ms.sue

Well ms.sue, would it be the pueblos from Acoma pueblothat is different from Albuq?

228. ## Last question for lesson 2 yay!

All of the following are goals of study reading EXPECT: A. greater speed B. retain information in your long-term memory C. be an active reading D. active reading i got B what do you think ?

270. ## Anthropology11

What type of researcher is Jane Goodall?

271. ## Physics

A iron skillet displaces 1.5 L of water. What is the mass of the skillet?

272. ## nervous(ms.sue)

ms.sue im about to put my lesson 2 exam in hopefully i pass :)

273. ## Journalism

any mistakes or errors? Any suggestions to make it better? Olivia Hertog Personality Profile Written By: Bryce R Cameras are flashing everywhere, as Junior Olivia Hertog poses for her new shoot as sweat drips off her face from the heat of the lights,

274. ## Geometry

Find the area of the rectangle that has the following ordered pairs: F(-3,1) G(-1,0) H(-2,-4), J(-5,-2)?

275. ## algebra find outlier describe affect

just want to double check on 2 problems that we did -15 -12 -19 0 -20 -14 the outlier is 0 the mean with the outlier 0 is: -13.33 the mean without the outlier 0 is: -16 is this correct? next one: 4 -1 -16 2 0 -3 6 -2 for this i added positive got: 12 i

276. ## Algebra 1a

translate 38 less than q to algebraic expression

277. ## math

how to find the derivative of y=3tan(piex^2) using the chain rule?

278. ## Math

A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

279. ## Statistics

the mean age for 12 students in a math class is 20. 2 older students, age 32 and36, respectively enroll. what is the new mean age for the class?

280. ## Science

What are the three different ways that heat can be transferred from one object to another Explain each method

Why is it important to read the title of a reading passage first and think about the information to come? A. It help up your reading when you know what is to come. B. Knowing what information to expect increases your comprehension. C. it activates prior

282. ## Chemistry, Physics (Radiation Toxicology)

a) Na-22 decays in two ways. In 100 atoms of Na-22 decaying, how many would decay by positron emission and how many would decay by electron capture? Why is the yield of photon gamma (+/-) so high? b) In 100 decays of Ra-226, how many decays would result in

283. ## trig

Suppose that the point P is the point on the unit circle that is associated by the wrapping function with the number 31. In which quadrant is the point P located?

284. ## geometry

given: line DF congruent line EF; line DF perpendicular line AB; line EF perpendicular BC. prove line BF bisects angle ABC

285. ## Chemistry

Concentrations of Cs-137 reached 29KBq/kg in reindeer meat after the 1986 Chernobyl accident. How many grams and picograms of Cs-137 were initially found in 1kg of meat in 1986?

286. ## Science

Why is 100g of water and 1000g of water the same density?

287. ## mba

Antique Arts Company would pay Rs. 2.50 as dividend per share for the next year and is expected to grow indefinitely at 12%. What would be the equity value if the investor require 20% return?

288. ## chemistry - ASAP

An unknown element reacts with bromine to give bromide, MBr3. If 2.809g of the unknown element gives 27.765grams of MBr3, what is the element? ( give the symbol ) I don't understand the M in the MBr3...can someoen please help me with this question ASAP

When an individual, non-cabinet member, proposes a bill. Terms I have are: Cabinet Civil Servant NDP Representative Democracy Three First 19 Party Communist Municipal Patronage Private members bill Speaker of the House Order paper I have all these terms

what were the two major uses of hieroglyphics? how did it affect egyptian culture?

291. ## computers

I need some good links for technology newsletter related to information technology.

292. ## Physics

A person walks 15.0° north of east for 3.70 km. How far due north and how far due east would she have to walk to arrive at the same location?

293. ## social studies or language arts

jack layton what new role did this party take on because of this electoral success?

294. ## physics

A vector has an x-component of −21.0units and a y-component of 36.5 units. Find the magnitude and direction of the vector.

295. ## Physics

A fire helicopter carries a 555 kg empty water bucket at the end of a cable 20.9 m long. As the aircraft flies back from a fire at a constant speed of 38.4 m/s, the cable makes an angle of 38.3° with respect to the vertical. A) After filling the bucket

In order to get an idea of significant subject areas in chapter, it is best to read the : A. subheads B. Graphics C.Captions D.table of contents i got A what do you think ?

297. ## :0

I got a 85 on my exam that's good yay! i could of got higher but still good

298. ## Algebra 1a

Graph the number on the number line 3 - 2

299. ## physics

It two objects are thrown off a tall building and one is three times the mass of the other, do they hit the ground at the same time?

300. ## algebra

Joe has a ring weighing 15 grams made of an alloy of 20 silver and the rest gold. He decides to melt down the rings and add enough silver to reduce the gold content to 67 . How many grams of silver should he add?

301. ## science

which of the following does not affect reaction rate balancin, temperature surface area or concentration?

302. ## calculus

Let f(x)+10x^2+9x+10. Find f(x+h)-f(x).

303. ## Chemistry

What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency 1.7×10^{15} Hz?

304. ## Dentistry

Does bleaching teeth damage enamel?

305. ## Physics

Problem 22.2 2 *10 ^13 electrons flow through a transistor in 1.0 ms. Part A - What is the current through the transistor? Express your answer using two significant figures.

306. ## Chemistry

You measure out 45.0 mL of a dense liquid. Its mass is 63.3 g. What is the density of this liquid?

307. ## physics

how to solve for velocity using these values... distance time(s) 28.5 (initial) 4.26 (initial) 89 (final) 6.77 (final)

308. ## college algebra

Could I please have 1 example of a piecewise-defined function problem, with 2 function pieces and the domain and range of each piece. Thank you

309. ## Physics!

Suppose that you are standing on a train accelerating at 0.39g. What minimum coefficient of static friction must exist between your feet and the floor if you are not to slide?

310. ## History

What event used by Nazi Germany is symbolic with censorship of books and printed media? I think Nazi Book Burnings. Am I correct or not?

311. ## science

what was the moon altitude, direction, and apperence 4 the last 30 days?

312. ## physics

If I threw a ball vertically at an initial speed of 34.5 m/s, how many seconds would it take to reach its maximum height?

313. ## calculus

what does 4 ( x - 5 ) = 4x - 20 equal if x equals 7

314. ## Chemistry

Given the following thermodynamic data, 2H2O(g) → O2(g) + 2H2(g) ∆Hrxn = 483.6kJ H2O(g) → H2O(l) ∆Hrxn = −44.0kJ What is the molar heat of formation for liquid water, H2O (l)? Answer in units of kJ/mole

315. ## biology

ok so i was learning about cell theory and i am really stuck on this question The text describes one of the scientific theories of where life comes from(which was the cell theory). Find one other scientific theory of how life began and tell me about it.

316. ## beowulf

why was the importance of adding the passage about Queen Modthryth in Beowulf?

317. ## physics

A diver leaves the board traveling at 3.5 m/s at an angle of 75º with respect to the horizontal. What is her speed when she hits the water, 3 meters below?

As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses

319. ## Math

If 2t + 3 = -9, what is the value of -3t - 7?

320. ## math

What is the interest amount on \$1,800 for a year at 1/2%

321. ## writing decimals

How do you write 0.013 in expanded notation

The density of water is 62.4 lbs/ft^3. what mass of water in kg will a rectangular can hold if it measures 2.00 ft by 3.00 ft by 6.00 inches?

323. ## Final Draft, English essay

Hey could you please check this. It is supposed to be an illustrated essay. Is it illustrated enough? _______________ Illustration essay: Successful student The value of education has really fallen in the past years; some say college is hard to cope with

how would you solve this? x - 5

325. ## Math

A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

326. ## algebra

The value of a particular car dropped from 25,000 in may 21,000 in october.find the rat of change in the value of the car.

327. ## Physics

A 70.0-kg runner has a speed of 5.90 m/s at one instant during a long-distance event.What is the runner's kinetic energy at this instant? If he doubles his speed to reach the finish line, by what factor does his kinetic energy change?

Thank you very much for the answer stated below: A perfect square will have an even number of repetitions of each prime factor. 180 = 2*2*3*3*5 e have 2^2 and 3^2, but we need another 5. So, 180*5 = 900 = 30^2 = (2*3*5)^2

330. ## chemistry

what volume of .0250 M MgCl2 should be diluted to 250.0 mL to obtain a solution with [Cl]=.0135?

331. ## Media Influences on America

Bill Goodykoontz states that media and popular culture often understand society better than straight coverage. Why is this so? Can you name any examples?

332. ## Mrs. Sue Algebra outlier/mean recheck

find the outlier of each set of data describe how the outlier affects the mean. just want to double check on 2 problems that we did -15 -12 -19 0 -20 -14 the outlier is 0 the mean with the outlier 0 is: -13.33 the mean without the outlier 0 is: -16 is this

333. ## calc

A basic fact of algebra states that c is a root of a polynomial f(x) if and only if f(x) = (x-c)g(x) for some polynomial g(x). We say that c is a multiple root if f(x) = [(x-c)^2](h(x)) where h(x) is a polynomial. Show that c is a multiple root of f(x) if

334. ## math

Use a centimeter ruler and a separate sheet of paper to draw an 8cm by 6cm rectangle. List its perimeter on the table below. Use your two pieces to create 4 new geometric shapes. After making each shape, determine its perimeter.

335. ## math

expand (3x-2)squared

336. ## Physics

The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. The total mass of the train is 565 g. Find the average power delivered to the train during its acceleration.

337. ## Physics

When a 3.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.07 cm. (a) What is the force constant of the spring? N/m (b) If the 3.00-kg object is removed, how far will the spring stretch if a 1.50-kg

338. ## Math

Evaluate: (without using Hopital's rule) d) lim (6-3x)/(((5x+6)^1/2)-4) x->2

339. ## Maths

Who do you figure out the surface area of a cylinder

340. ## Physics

A 0.38-kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B. (a) What is its kinetic energy at A? J (b) What is its speed at point B? m/s (c) What is the total work done on the particle as it moves from A to B?

341. ## college physics

cost of homework help for college physics

342. ## chemistry help

calculate the volume in ml of a sample of ccl4 having a mass of 80.0 g if the density of ccl4 is 1.60 g/ml.

Which of the following is an example of active readiing? A.skimming over information and taking notes. B.reviewing a chapter, question as you read, and review notes. C.speed reading and taking notes in your own words. D. Both B & C. i got B what do you

344. ## statistics

1) A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately normal with a mean of 31 and a standard deviation of 5. What percentage of sample had scores below 20?

345. ## geometry

measure of angle ABC=4x-12 measure of angle ABX=24 BX bisects ABC solve for X and find the measure of angle ABC **page 48 # 11 of prentice hall,california geometry**

346. ## maths

in right angled triangle ABC, angleBis90 degree and C is an acute angle of60degree. Also sin m

347. ## Pre-Calc

Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this