# Questions Asked onSeptember 22, 2008

1. ## Physics

A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate? a. The friction force point up the include b. The

2. ## CHEMISTRY

Given the following heats of combustion. CH3OH(l) + 3/2 O2(g) -> CO2(g) + 2 H2O(l) ΔH°rxn = -726.4 kJ C(graphite) + O2(g) ->CO2(g) ΔH°rxn = -393.5 kJ H2(g) + 1/2 O2(g) -> H2O(l) ΔH°rxn = -285.8 kJ Calculate the enthalpy of formation of methanol

3. ## Chemistry

ASpirin, c9h8o4, is prepared by reating salicylic acid, c7h6o3, with acetic anhydride, c4h6o3, in the reaction. c7h6o3 + c4h6o3---> c9h8o4 + c2h4o2 A student is told to prepare 45.0 g of aspirin. she is also told to use a 55.0 % excess of acetic anhydride

4. ## Physics

A flea is able to jump straight up about 0.49 m. It has been said that if a flea were as big as a human, it would be able to jump over a 100 story building! When an animal jumps, it converts work done in contracting muscles into gravitational potential

5. ## Physics

An object falling under the pull of gravity is acted upon by a frictional force of air resistance. The magnitude of this force is approximately proportional to the speed of the object, which can be written as f = bv. Assume b = 19 kg/s and m = 59 kg. What

6. ## chem

Ca(H2PO4)2 and NaHCO3 are ingredients of baking powder which react with each other to produce CO2, thereby causing dough or batter to rise: Ca(H2PO4)2 (s) + NaHCO3 (s) -----> CO2 (g) + H2O (g) + CaHPO4 (s) + Na2HPO4 (s) (unbalanced) If the baking powder

7. ## social studies

What is a fertile farming region located in Saskatchewan and Alberta noted for wheat production (two words)? This is in a crossword puzzle and I can't find the answer.

8. ## Physics

A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 100.0 N at an angle of 25.0° above the horizontal. The box has a mass of 25.0 kg, and the coefficient of kinetic friction

9. ## accounting

Eric Sherm began working as a part-time waiter on April 1st, 2008 at Yard restuarant. The cash tips of 475 that he received during April were reported on form 4070, which he submitted to his employer on May 1st. During May, he was paid wages of 630.00 by

Draw a number line. Make sure the following numbers are on your number line; 1,472; 1,560; 1,481

11. ## Geometry

J is the midpoint of Gk, H is the midpoint of GJ and I is the midpoint of Hj. Suppose GK=64. Find the measure of HJ

12. ## MATH

boating The inclined ramp of a boat launch is 8 meters longer than the rise of the ramp. The run is 7 meters longer than the rise. How long are the three sides of the ramp? let the the rise be x m then the run is x+7 m , and the ramp (the hypotenuse) is

13. ## Physics

A high diver of mass 60.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 2.10 s after she enters the water, what average force did the water exert on her?

14. ## world geogrophy

What river flows just south of cincinnati,Ohio?

15. ## art

i need help with my art test.how is applied art different from fine art?

16. ## Math

Will a parabola intersect its directrix sometimes, always, or never?

17. ## math

plse help me with these questions thx a million 19 2 1/4+3 15/16 22. -5 7/12+10 3/4= 28.-3.5+(-5.2)= is it 9.7 34.-304+9.1= is it 6 thx a million

18. ## chemistry

Write two conversion factors based on the relationship between hours and minutes...

19. ## ecology

How do flowering plants that do not have all four parts make seeds?

20. ## world geogrophy

The prime Meridian passes through which three continents?

21. ## math

I am having trouble rounding numbers for example 67.935 and i have to round it to the tenths, hundreths,and whole thanks

22. ## Stevens

How do you analyze this sentence: 'When the rain began, we were playing soccer.'

23. ## Math

Find the equation of the parabola with directix y=3 and focus (5,7)?

24. ## math

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an

25. ## world geogrophy

If you were in downtown CHICAGO and facing north, what direction would u go to reach lake michigan?

26. ## ecology

explain why outhouses pose a risk to nearby lakes?

27. ## physical science

two tuning forks are struck at the same time. One tuning fork has a frequency 20hz while the second tuning fork has afrequency of 226hz.how many beats will result?

28. ## math

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an

29. ## Math

1. A very magical teacher had a student select a two-digit number between 50 and 100 and write it on the board out of view of the instructor. Next, the student was asked to add 76 to the number, producing a three-digit sum. If the digit in the hundred’s

30. ## Math

A book has n consecutive pages torn out (each paper in a book has two sides - each side is one page). Suppose A is the last numbered page before the torn out section and B is the first numbered page following the torn-out section. Find a formula for n in

31. ## Math

What is the length of the latus rectum of x^2=20y X squared equals twenty Y

32. ## math

Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an idiot... Thank You So Much -The mystery # is a decimal.. -The digit in the 1's place

33. ## math

At a certain range of depths, the temperature of Earth's interior, in degrees Celsius, is expressed as 10d+20, where d is the depth in kilometres. Determine the temperature at a depth of 15km. I really don't get this, plz help!

34. ## chemistry

Write two conversion factors bsd on the relationship between hours and minutes...

35. ## com220

need to find three sources for research paper about legalizing marijuana apa formatted the i need a answer for Practice note-taking techniques by quoting a source you plan to use for your research paper, summarizing a second source, and paraphrasing a

36. ## Math

The question is: The freezing point of helium is -272 degrees celsius. The original temperature of a sample of helium is 3 degrees celsius. a.How much must the temperature change to ensure that helium freezes? -AND- b.Assume the temperature changed at a

37. ## chemistry

Determine the amount of heat (in kJ) given off when 2.07 multiplied by 104 g of ammonia are produced according to the following equation. Assume that the reaction takes place under standard-state conditions at 25.0°C. N2(g) + 3 H2(g) 2 NH3(g) ΔH°rxn =

Discribe the adventage and limitation of three types of model?

39. ## geometry

If b is between A and C, find the value of "x" and BC. AB=3x,BC=5x,and AC=8

40. ## algebra

how would i work out the following problems solve each formula in terms of the given variable 1. 5d-2g=9 ;g The formula A=2h(l+w) gives the lateral area a of a rectangular solids with length l, width,w and height h. 2. solve this formula for h 3. solve

41. ## world geogrophy

What is the capital of the state that is borded by colorado, nebraska, missouri and oklahoma?

42. ## lang. arts

Need to know how to change each decimal to a fraction ... .625 = ??? and how do you figure it?

44. ## English

That is New York Theater. The title of today's movie is E.T. There are 5 show times. The first showtime is 11 a.m. ----------------------- Are the expressions above all grammatical? If there are any wrong expressions, correct them,please.

45. ## MATH Matrix Equation

If 4a + 3b + c = 27 3a + b + 4c = 16 9a + 2b + 3c = 33 then 2a + 2b + 2c = ?

the sum of three intergers is 193.The smaller two are consecutive intergers and the larger two are consecutive even intergers.What are the three intergers?

ALI MADE A MODEL FOR 624 USING 6 HUNDREDS, 2 TENS, AND 4 ONES. WHAT IF ALI HAD NOT HAD ANY TENS? HOW COULD SHE HAVE MODELED 624 WITHOUT USING TENS?

48. ## geometry

what is the solution to this problem? -2=2x^2-7x negative two equals two times "x" squared minus seven "x".

49. ## geometry

Given that B is between A and C, find the indicated length. AB=5.3 and AC=6.7. Find BC

50. ## algebra 2

How do I graph this problem??? HELP!!! P = x-4y 3x - y < or equal to 7 2x - y > or equal to 3 y > or equal to x - 3

51. ## Microeconomics

A couple of assignment questions: Assume that the market for annual physical check-ups is in equilibrium, and not everyone gets an annual physical check-up. What is the effect on price and quantity if a government regulation fixes prices at the current

52. ## Spanish

In act 3 in Knight of Olmedo in the bullfighting scene I need to answer the question how rodrigo reacted to Alonso winning, and also what incident in act 3 made rodrigo want alonso dead more than ever besides alonso loving ines. thanks

53. ## world geogrophy

What is the Caribbean island with the second largest land area?

54. ## geometry

what is the value of "x" when y=0: 8x^2-x-5=y eight times x squared minus x minus five equals y

55. ## Grammar

I am having a great deal of trouble I think I know the answers but am unable to explain why I know they are right can someone please help? Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left

56. ## geometry

Given that B is between A and C, find the indicated length. AB=21 and BC=4.3. Find AC

57. ## avgforce*distance=Original energy=mgh

avgforce*distance=Original energy=mgh mgh? m= mass g= 9.8 h = hr?

58. ## History

Did King Richard 111 deserve to die in battle

what is the change in temp when the thermometer reading moves from the 1st temp to the 2nd temp. 20degree F to -10 degress F.Please explain to me how you get the answer for future problems.

60. ## chem2

A small piece of zinc is dissolved in 22.29 mL of 0.968 M HCl. Zn (s) + 2 HCl (aq) ----> ZnCl2 (aq) + H2 (g) At the end of the reaction, the concentration of the 22.29-mL sample is redetermined and found to be 0.691 M HCl. What must have been the mass of

61. ## Research Writing

1. A blowout, or a flat tire that occurs ____ while you are driving, can be frightening. sudden suddenly -------------------------------------------------------------------------------- 2. Blowouts happen less ____ than they used to. frequently frequent

62. ## chemistry

A 20.00 ml stock sample of HBr is diluted to 50 mL. If 18.76 ml of 0.1345 M KOH was required to reach the equivalence point, what is the concentration of the stock HBr solution? Is my answer correct? Titration problems can be solved with the MV=MV

63. ## english

I am 11 years old. I need to write 3 sentences about the word "destiny," and why i believe in it? I kinda have an idea what it means, just need help putting it into words. Any ideas?

64. ## Science

Is wood cut in boards is it a physical change or chemical change, explain

65. ## writing

use a subordinate clause with one sentence. The city had one public pool, it stayed packed with children all summer long.

66. ## Math

The width of a rectangle is 2 ft less than the length. The area is 8 ft squared. Find the length and the width.

What are two reasons why scientists study earthquakes?

68. ## History

why were the British so surprised by the American Patriots reaction to the Stamp Act?

69. ## american government

In a dictatorship supreme authority rests solely with the people

70. ## buisness

Use the example on p. 97 of the text as a guide.Edu the example on p. 97 of the text as a guideWrite a 700- to 1,050-word paper in APA format explaining the business plan youselected and your SWOT analysis discussing the strengths, weaknesses,

71. ## History

was Rupert's Land named after King Rupert?

72. ## math

a local hardware store has a 10-gallon can of gray paint left over that is a mixture of 35% black paint and 65% white paint. how many gallons of white paint will be needed to make the gray mixture 20% black? note: answers must be 5 gallons, 7.5 gallons, 12

73. ## socil studies

recast as one independent clause. Wind power for the home is a supplementary source of energy, it can be combined with electricity, gas, or solor power.

75. ## French

I need to write a paragraph about something that happened during my childhood, and so I decided to write about when I was 10 and ran through the sliding glass door like an idiot. But I don't know much hospital/injury vocabulary and my french isn't perfect

You have been asked to evaluate the country you selected as a potential market for your product(s)/service(s) and present your findings to other managers of the organization in a memo. In your memo, be sure to address the following: Provide a brief

77. ## Physics lab

During a lab, we dropped a ball from the second story of our school and found out the distance, ave. time, ave. velocity, final velocity and the acceleration. One of the questions is: If we could redo this experiment from a 300 ft radio tower instead of

78. ## physical science

If it took 5 seconds to lift the crate, using a machine what was the power rating of the machine?

79. ## Acct

What type of financial reports would you expect to see in a business, and how can these reports be used to make business decisions?

80. ## Language Arts repost for Adam

I need help understanding simple subject, & simple predicate of this sentence? Sentence #1 The first movies ere different from today's films.

Complete the following exercise in your groups: Kim and Dan Bergholt are both government workers. They are considering purchasing a home in the Washington D.C. area for about \$280,000. They estimate monthly expenses for utilities at \$220, maintenance at

82. ## Calc

How do you find the points of the derivative of a function just from the graph of the function? It wants me to find f'(0), f'(1), etc just from the graph-thanks

83. ## Stats

What are variance and covariance? What do they mean? What are their differences/relationship?

84. ## music

What developments of the Baroque made the most signicant contributions to the future of music?.

85. ## Chemistry 2 Ap

can someone check these for me ? Lead(IV)nitrate-- Pb(No3)4 Aluminumoxide-- Al2O Ammoniumphosphate-- NH4(Po4) Perchloric Acid-- Clo4 Copper(II)bromide-- CuBr2 Thankss!

86. ## Research writing

1. A blowout, or a flat tire that occurs suddenly while you are driving, can be frightening. sudden suddenly -------------------------------------------------------------------------------- 2. Blowouts happen less frequent than they used to. frequently

87. ## calculus

Consider a plane curve which is described in polar coordinates (r, @) by r = g(@) for @ for all [a,b] (@ representing theta). Starting from the known expression for the length of a plane curve in Cartesian coordinates and the equation x = rcos@, y = rsin@,

88. ## geometry

If b is between A and C, find the value of "x" and BC. AB=3(x+7),BC=2(x-3),and AC=50

89. ## science

What are two sources of air pollution?

90. ## algebra 2

How do I graph this problem??? HELP!!! P = x-4y 3x - y < or equal to 7 2x - y > or equal to 3 y > or equal to x - 3

91. ## physical science

a 50kg crate is lifted to a height of 10 meters. how much potential energy does the crate have after being lifted?

92. ## Science

What makes everyone think that their better than the other when really they are really messed up in beauty?

93. ## Calculus

Consider a plane curve which is described in polar coordinates (r, @) by r = g(@) for @ for all [a,b] (@ representing theta). Starting from the known expression for the length of a plane curve in Cartesian coordinates and the equation x = rcos@, y = rsin@,

94. ## English

Do I have to go back home? 1. Yes, you do. 2. No, you don't 3. Yes, you have to. 4. No, you don't have to. Are all the answers correct? Can we answer like #1 and #2?

95. ## Logic

From these premises... Ken is a killer and Sam is a saint. Ken is a killer. ...which of the following conclusions are implied? a. Sam is a saint. b. Ken is a killer or Sam is a saint. c. Sam is a saint or Sam is not a saint. d. All of the above are implied

96. ## math

Find the common factors of each pair of numbers. a)14 and 21 b)20 and 12 c)45 and 15

97. ## Psychology

What in the brain produces meaningless visual sensations that are later transformed into meaningful objects in the association area?

99. ## world geogrophy

BOLIVIA is one of two landlocked country in south america. what is the name of the other countries?

100. ## Math/Chemistry

The density of water i 1.00 g/cm^3. Express this density in lb/ft^3. (1 lb = 454 grams)

101. ## spell

Is the following words nouns/pronouns or verbs. They're you've weren't needn't there'd they've mustn't what'll doesn't hadn't

102. ## french

Hi I have an assignment where I need to find facts about Paris. I don't want ho hum stuff with statistics, I want an interesting quirky fact. Does anyone know any off hand? Thanks!!

103. ## geometry

the #'s given are the coordinates of two points on a # line. find the distance between the two points. -3 and 5 what is the distance between these

104. ## Economics: Shortage

Would a shortage of goods exert upward or downward pressure on prices? I'm thinking it's upward, correct?

105. ## Writing

Im writing this paper on James M. Henslin Urban Legends. Can you help me in my writing? what were some of your opinions on this reading?

106. ## math

solve -15x - 2y = -31, 4x + 6y = 11 using Linear Combination Method?

107. ## Chemistry

Help! A solution is made by dissolving 33.7 g of MgCl2 in .35L of H20. What is the mass of the solvent? The density of water is 1.oo g/ml. Thanks!

108. ## geography

what do we call the black dots on a map?

109. ## Calculus

At STP, 1.00 g of calcium is placed into an acidic solution, and 407 mL of hydrogen gas is collected. What is the ratio of moles of calcium consumed to moles of hydrogen produced? a)1.37:1.00 b)1.00:1.64 c)0.928:1.00 d) 0.500:1.00 Is the answer A, if so,

110. ## management

How does a manager know when to use teams and when not to use them?

111. ## english

In addition to the following, "I am going to write about ..." What are other examples of bad beginning sentences? Thanks

112. ## Computers

I have an assignment where I had to interview a classmate about an experience over the Summer. He told me about his trip to California, to participate in a boot camp for the company Idel Information. The class was soon over, and I did not find out much

how does ozone form?

114. ## geometry

the #'s given are the coordinates of two points on a # line. find the distance between the two points. -11 and -27 what is the distance between these

115. ## music -year 8

i`m doing a school project in music about buddy holly. i need info about when he died and how, all about his music , if he was married had any children . thanks so much to everyone who helps!

116. ## Algebra 2

how do I solve -15x-2y=-31 4x+6)=11 using linear combination method?

117. ## social studies

give to reasons why african slaves were needed

118. ## Math

Find the equation of the straight line joining a)(4, 4) and ( 2, 0) b)(3, -1), (5, 4) i also need to know how you went about solving this problem so i can understand.. many thanks

119. ## management

How does a manager know when to use teams and when not to use them?

120. ## management

2. Suppose you are a manager forming a team at work, what things will you consider when selecting employees for this team?

121. ## health

The purpose of environmental epidemiology studies is to prove that an environmental agent is the cause of a particular adverse effect. True False 2. Which of the following is not an accurate statement about dose-response? The NOAEL is the highest data

122. ## geography

the question reads as follows, black dots on a map represents cities or towns what are these black dots called?

123. ## geometry

Y is the midpoint of line xz. Find the coordinates of the third point if z(2,8) and y(-1,6)

124. ## Algebra 8

How many values of x make each statement true? Explain your reasoning. a) 3x+3=3(x+1) b) x-4-x=0 I don't get what the question is telling me to do. Help?

125. ## geometry

what a good way to learn geometry if you are completely clueless on what to do and you have a 65 and you only have 2 weeks to correct that

126. ## Math(check)

Solve 1= (y+3)(2y-2) Use foil on the right side. 1 = 2y^2 +6y -2y -6 so 1 = 2y^2 +4y -6 Now subtract 1 from boths sides giving us 0 = 2y^2 +4y -7 Now we need two numbers that multiply to be 2*(-7) or -14 and add to be 4. There doesn't appear to be any

127. ## english

what is a preposition?

answer in simplest form -5/7(2/5) give me step by step

129. ## chem/ health

if it takes alcohol 185 cal to evaporate and water 552 cal to evaporate, which is better to use to reduce a fever?

130. ## Algebra 1: 8th Grade

How many values of x make each statement true? Explain your reasoning. a) 3x+3=3(x+1) b) x-4-x=0 I don't get what the question is telling me to do. Help?

131. ## calculus

I have to help teach this class tomorrow for my Senior Seminar Math class. The lesson is over Exponential and Logarithmic Functions and L'Hospital's Rule. I have all the problems needed to review this lesson, but i can not solve any of them. My teaching

132. ## environmental

What problems may arise from mixing household hazardous waste with other domestic waste?

133. ## science

What do you think causes certain landforms to be in same place and not others?

134. ## technology

Describe a hypothetical scenario in which you would write a proposal. How would this differ from a situation in which a standard report would be more appropriate? How do these two report types differ in purpose and structure?

135. ## math

solve -15x - 2y = -31, 4x + 6y = 11 using Linear Combination Method?

136. ## arithmetic

Clue 1: each digit increased by 1 and clue 2 add the numbers and the answer is 21. whats the six digit number?

137. ## intermediate algebra

solve each equation and check the result 7 3 40 x-5 - x+5 = x^2 - 25 there is a line in between each equation how would i start something like this?

138. ## essay

im including Sonny Bono in the essay im going to write... i googled him and read his wiki page but could you tell me more about what he did in what you said earlier ms.sue

139. ## Re

i need to find eveidence of 3 things that jesus did and 3 things jesus didn`t do. thanks!

140. ## Vegetables

Whats the difference between a vegetable and a fruit?

141. ## Social Studies

How are the seasons of the mid latitudes affected by air masses from the tropics and the north and south poles?

142. ## World History

How do I find and calculate the coordinates for all of the huricaines and tropical storms from Aug 28th until now?

143. ## science

I need to know at least 5 control variables for the following questions. 1.Which tennis shoe, Nike or New Balance, will help me improve the time it takes me to run the 100-meter dash? 2. Does Bazooka or Double Bubble gum blow a bigger bubble?

144. ## English- COM 150

Does anyone have the explanations to week 9 Appendix H Grammar Checkpoint?

145. ## Ethics

What is feasibility of enforcing the code of ethics? I don't know understand this question, any help would be appreciated.

146. ## chemistry

complete the following questions. Express all answers in scientific notation. i) 24.67 – 9.42 + 0.2 ii) 6340 * 5348 / 2345 iii) 5.35 x 10-3 M x 69 mL

147. ## Scocial sudies

How can air masses affect the nile river lower africa wouldnt the mountains protect it?

148. ## essay writing

ok well... my prompt is what is the artist's responsibility to right(correct) societal wrongs? i'm just looking for some ideas to write about and how i should set it up because this prompt is giving me lots of trouble.

149. ## algebra

What is a meassure of center?

150. ## math

what is and line plot?

Discribe the advantage and limitation of the three tyeps of models?

152. ## math

each player is given a rectangular piece of graph paper that is 56cm long and 84 cm wide. The horizontal and vertical lines are spaced 1 cm apart. The paper is to be cut along the grid (graph) lines into square pieces that are all the same size without

153. ## civics

how does the responsibilty for excuting the law give the president great power

154. ## music

i need to find 10 musical things about buddy holly and how he died. thanks!

155. ## History

Did the Micmaq reside in New France?

156. ## Math

Name the numerical coefficient, the variable and the constant term of each of these algebraic expressions. 1.3x + 2 2.5n 3.w + 3 4.2p + 4

157. ## Science

What are some dangers of nuclear radiation that can cause nature

158. ## Science

What Dangers does Nuclear radiation do to humans

159. ## Pre-Calculus

I want to know how we know if a function is continuas or discontinuos and what are the types and diff if discontinuos functions?

160. ## math

If someone is Typeing 360 words at 90 minutes words per minute, is getting paid 10\$ per 1800 words a better pay?Please show how you got the answer cause i don't get it.

161. ## math

one half gallon equals ----- quarts. i think it 2 gallons can you correct me please?

162. ## Math Matrix EQ

If 4a + 3b + c = 27 3a + b + 4c = 16 9a + 2b + 3c = 33 then 2a + 2b + 2c = ?

163. ## world geogrophy

How many states are west of mississippi river?

164. ## writing

make 2 sentences Viewers saw two people smashed by a boat, one person choked, and another shot to death, what purpose does this violence serve.

165. ## music yr 8- re- drwls

thankyou drwls for your help on buddy holly

166. ## social studies

why would it be important for a pharoh to unite upper egypt and lower egypt

167. ## re

for my re homework i need to find 3 pieces of evidence of what jesus did and 3 pieces of evidence what jesus didn`t do . i only need a little bit of info not pages of it. thanks!

168. ## History

Were all the Native peoples helpful to the French in New France and Acadia?

169. ## beh

help please i need examples, causes, treatment and symptoms for each of the following: acute, biopolar, mood,and eating disorders.ASAP

What makes a job different from a career.

171. ## Biology lab - hypothesis?

For each of the observations, list a possible question, hypothesis and prediction. 1. Observation: Chicken soup seems to cure a cold. Question: Hypothesis: Prediction:

172. ## Spanish

I have a windows, how do I place accent marks? (e.g. for Spanish) Thanks

173. ## Geography

How do I find and plot the coordinates for all of the Florida huricaines in 2008 from Aug 28th until now?

174. ## Calculus Derivatives

what's the equations of both lines through the point (2,3) that are tangent to the parabola y=x^2+x

175. ## theology

can you give me a site that have an outline about the topic "The Historical Development of Church Marriage" and best explain about it.. thank you so much, its my report today so please help me.. :)

176. ## government

Government branch

177. ## math

solve -15x-2y=-31 4x+6y= 11 using linear combination method?

178. ## music-buddy holly

i`m doing a school projrct about buddy holly ive looked in the site drwls suggested but i can`t find much info or many pictures . any ideas thanks

179. ## MATH

factor completely z^2-18z+81-25x^2 (z-9)^2-(5x)^2 (z-9+5x)(z-9-5x) am I on the right track?

180. ## management

how should people who work on teams be trained and paid

181. ## Science

What are some things Nuclear Radation Can affect?

182. ## Spanish

I have a windows, how do I place accent marks? (e.g. for Spanish) Thanks

15=4x+7

184. ## health

muscular atrophy involves a process in which

is a number with the most ditis always greater and why/

186. ## math, triangles

what do the angle measures of a triangle add up to? is it 180?

187. ## social studies

What did the woodland cree people do?

What are some benefits and challenges of urbaniZation?

189. ## math

one difference between identity,zero, commutatiive and associative property

190. ## english

How do heros inspire you?

191. ## science

what are two ways matter diffrent?