Questions Asked onAugust 26, 2010

1. chemistry

2H2O2 --- 2H2O + O2 is this a redox reaction if so what is the oxidized reactant and reduced reactant

2. Chemistry

What would be the steps to solving this problem? The aluminum sulfate hydrate [Al2(SO4)3 (times) xH2O] contains 8.20 % Al by mass. Calculate x, that is , the number of water molecules associated with each Al2(SO4)3 unit.

3. Chemistry

The steps to getting the answer. A certain metal oxide has the formula MO where M denotes the metal. A 39.46g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules. At the end, 31.70g of the metal is

4. physics

The disk shaped head of a pin is 1.0 mm in diameter. Which of the following is the best estimate of the number of atoms in the layer of atoms on the top of the surface of the pinhead? 1. 10 to the 34th power 2. 10 to the 19th power 3. 10 to the 24th power

what is the analogy to height:inches:weight?

6. Calculas

In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones of people alive at the time. If the half-life of strontium-90 is 32 years, what fraction of the strontium-90 absorbed in 1965

7. physics

A car going at 30 m/s undergoes an acceleration of 2m/s squared for 4 seconds. What is it's final speed? How far did it travel while it was accelerating?

8. English

I need help to error free assignment. Sappho born 630 B.C. in Lesbo. She was lyric poet. She wrote poetry that was admired by ancient world. Her poetry work was very personal in nature .She talk about herself, family , daughter and lovers. She also

9. algebra1

an internet serive provider charges \$9.95/month for the first 20 hours and \$0.50 for each additonal hour. write and expression presenting the charges for h hours of use in one month h is more than 20 hours. what is the charge for 35 hours... pls show me

10. physics

a rock is dropped from a cliff falls one-third of it's total distance to the ground in the last second of it's fall. how high is the cliff?

11. Chemistry AP-Density

The level of water in a graduated cylinder is at the 100 mL mark. When a platinum crucible floats on the surface of the water, the level reads 157.9 mL. When the crucible is totally immersed in the same cylinder, the level reads 102.70 mL. What is the

12. physics

A stone is dropped from the top of a cliff. It hits the ground below after 3.10 s. How high is the cliff?

13. algebra 1

real- world situation that could be modeled by the expression b less than 17

14. algebra1

friday's temperature was 20 degrees warmer than monday's temperature t. write an expression for friday's temperature.... my answer is 20dregees + T is that correct?

15. science

Which of the following is the MOST destructive force associated with tornadoes? a) The destructive pressure of the high winds associated with the tornado. b) The explosive pressure difference between the inside of a home and the lower pressure outside due

asked by carl bennett
16. science

how are fossil fuels formed???

17. NSU

The Omega pharmaceutical firm has five salespersons, whom the firm wants to assign to five sales regions. Given their various previous contacts, the salespersons are able to cover the regions in different amounts of time. The amount of time (days) required

18. Calculus

A baseball, hit 3 feet above the ground, leaves the bat at an angle of 45' and is caught by an outfielder 3 feet above the ground and 300 feet from home plate. What is the intitial speed of the ball, and how high does it rise? So far i have got a few

19. physics

To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights and hot energy,” by which we mean turning off lights and hot water when they are not being used, and keeping thermostats at a moderate level. In

20. dynamics, check my ans

Three identical train locomotives, on separate tracks, apply the maximum force needed to begin moving. The first train consists of a single empty freight car, the second train consists of 50 empty freight cars, and the third train consists of 50 equally

21. phy

A baseball is hit nearly straight up into the air with a speed of 24 m/s. (a) How high does it go? (b) How long is it in the air?

22. algebra 1

ASTRONOMY- an object's weight on mars can be found by multiplying 0.38 by the object's weight on mars. a) an object weighs p pounds,on earth. write an expression for its weight on mars. my answer is 0.38p, is it correct? b)dana weights 120 pounds, and her

23. spanish 1

1-7 What would you say in the following situations? 1. You are dancing with a friend and accidentally step on his/her toe. 2. A friend gives you a birthday present. What do you say to him/her? How does he/she respond? 3. You want to pass by some people who

what three criteria can help you evaluate health information

25. Algebra

Kate cut a 100-foot rope into two pieces. One piece was 5 feet longer than 4 times the length of the other. Find the length of each piece.

26. History

Please give me suggestion on this essay that I wrote. Thanks. Discuss the origins of World War I. Can any single country be blamed for starting the war? In what ways did the alliance system, implemented to maintain a peaceful balance of power in Europe, in

27. Physics

When two vectors vector A and vector B are drawn from a common point, the angle between them is phi. If vector A and vector B have the same magnitude, for which value of phi will their vector sum have the same magnitude as vector A or vector B?

28. percentages

You and your coworker together make \$ 16 per hour. You know your coworker earns 10 percent more than you do. Your hourly wage is \$ ???? your hourly wage is raised to \$ 12. This is a raise of ??? After returning to work you can't help mentioning casually to

29. math

unscramble letters into 3 words m a s r r l a e a e h c d d i

30. math

If a ball is dropped from from 288 ft above the ground, how long does it take to reach ground level?

31. Algebra

After a 5% raise your new salary is \$ 63000. Before the raise your salary was?? Help. Please.

32. Chemistry Help!

The reaction is O3 + NO arrow O2 + NO2 If 0.740 g O3 reacts w/ 0.670g of NO, how many grams of NO2 will be produced? I've tried to solve this. but I can't seem to get the right answer

33. English Help 2

Through out her poetry, she seems to be very passionate about her love .she talks about her lover “He seems to me Equal to Gods” .She thinks ,Her love for that man is undesirable .She loves him very much that she worship him like a God. She is at the

34. zoology

why all chordates are vertebrates but all vertebrates are not chordates? i need it badly

35. math

two angles are complementry. one angle measures 50 degrees what is the measurement of the other angles 180-50=130 so it 130

36. Math

Eve:"Doris and I are twins" Ann: "Doris and Eve are not twins" Doris: "Ann and I are not twins" Who are the twins?

37. algebra1

write an algebraic expression for each verbal expression. then write a real-world situation that couyld be a modeled by expressio. (what does it mean by real-world) like theres this on. the product of 2 and x, my answer is 2x, 2 times x... is it correct?

38. chemistry

An aluminum engine block has a volume of 4.86 L and a mass of 12.75 kg. What is the density of the aluminum in grams per cubic centimeter?

39. Chem 101. Science

Rank the following samples in mass from least to greatest. a) 2 x 1023 S atoms b) 0.25 mol of Cu atoms c) 2 mol of N atoms d) 6 x 1023 Na atoms

40. spanish 1

Can any one help me answer these questions, i am having trouble because i haven't received my book yet. Modelo: Elena / Colorado ¿De dónde es Elena? Es de Colorado. 1. la profesora Guzmán / España 2. usted / Texas 3. tú / Arizona 4. ellas / Chicago

41. Economics

A factory producing motorcycle helmets employs six workers. At the current production level, each worker produces 20 helmets per week. Assuming that labor is the only variable input and that the weekly wage equals \$600 per week, average variable cost: a.)

42. Chem 101

Consider the reaction of 82.0 g of oxygen as follows: 4Fe + 3O2 2Fe2O3 How many moles of oxygen react? How many moles of iron must react? How many moles of product form? What mass of product forms?

43. math

Part 1 If 1/4 cup of Egg Beaters equals 1 egg, how much Egg Beaters do we need if we only want 1/3 egg? The solution should be expressed in cups. Part 2: Convert your answer in part 1 to tablespoons or teaspoons, whichever unit gives a whole number. Let

44. phy

A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the

45. Math

An equilateral triangle is one in with all three sides are length. If two vertices of an equilateral trangle (0,4) and (0,0), find the third vertex. How mant of these triangles are possible? How would you slove this??

46. economics

can anyone explain to me how to solve for P, if Q=240-2P?

47. Chem 101 science

Rank the following samples in number of atoms from least to greatest. a) 2 mol of K atoms b) 48 g of S c) 27 g of Be d) 50 g of Na

48. MATH

What is 3/4 of 4/9 kilogram?

asked by Sammy J
49. 12th grade - Math

Identify the system as consistent, inconsistent or dependent. Explain your choice. 1.) 3x - 2y = 12 6x - 4y = 24 2.) x= -5 y= 4

50. geometry

The coordinates for points C and R are (-1, 4) and (6, 4), respectively. RS and CD intersect at P (3, 2)

51. Physics 1

The cartesian coordinates of a point in the xy plane are x= -3.64 m, y = -1.75 m. 1. Find the distance, r, from the point to the origin. Answer in units of m. 2. Calculate the angle between the radius-vector of the point and the positive x axis (measured

52. science

Which of the following statements is FALSE? a) The first stage of a thunderstorm's development is the cumulus stage. b) Warm air is less dense than cold air c) The cumulus stage of a thunderstorm usually features heavy rains.

asked by carl bennett
53. phy

A horse canters away from its trainer in a straight line, moving 140 m away in 16.0 s. It then turns abruptly and gallops halfway back in 5.0 s. (a) Calculate its average speed. (b) Calculate its average velocity for the entire trip, using "away from the

54. physics

. When a driver applies brakes to keep a car going downhill at constant speed and constant kinetic energy, the potential energy of the car decreases. Where does this energy go? Where does most of it appear in a hybrid vehicle?

55. biology

what is the geologic time scale

56. marketing

Mass marketing is dead versus Mass Marketing is still a viable way to build a porfitable brand?

57. Physics

Within a book on a desk there are billions of forces pushing and pulling on all the molecules. Why is it that these forces never by chance add up to a net force in one direction, causing the book to accelerate "spontaneously" across the desk?

58. algebra

Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for both variables. In a basketball game, Will scored 26 points, consisting only of three-point shots

59. Density

A new penny has a mass of 2.54 g and a volume of 0.354 cm3. Is the penny made of pure copper? what is its density? thanks:) Density is mass/volume but I don't know how to find it with g and cm3

60. physics

To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights and hot energy,” by which we mean turning off lights and hot water when they are not being used, and keeping thermostats at a moderate level. In

61. algebra 1

this promblem will prepare you for the real world connection. the air around u puts pressure on ur body equal 14.7 pounds per square inch (psi). when you are underwater, the water exerts additional pressure on ur body. for each foot u r below the surface

62. chemistry

how could you find the mass and volume from this info Acetone (fingernail-polish remover) has a density of 0.7857 g/cm3.

63. History

Please give me suggestion on thie essay that I wrote.However, maybe there is some points missing. Thanks. How did imperialism impact non-western economies? How did Europeans achieve these transformations of local economies? What were the effects of those

64. Math

Dave has quarters, dimes and nickles in his bank. He has 3 more dimes than quarters and 6 less nickles than quarters. There are 63 total coins. How many are quarters?

65. History

I have read the suggested link you and my conclusion is writting below. Thanks,for all your suggestions. Question 2 During World War I the most striking break from pre-war conditions on the home front was Answer (A)the use of volunteer armies. (B)central

66. math

write the following science ideas mathematically using symbolic representation you observe that one fox eats 100 rabbits each year. you have an idea that every increase of one in fox population will cause the rabbit population to decrease by 100 fx100=

67. math

the expression 1/12 / (1/4 + 5/12) is equivalent to a - 1/18 b - 7/12 c - 1/8 d - 1/2 1/4= 3/12 3/12 + 5/12= 8/12 1/12 / 8/12 = 1/12 x 12/8 12/96=1/8 c-1/8

68. Science

how do the properties of compounds often compare with the properties of the elements that make them?

69. geometry 11th grade

suppose the coordinate of 9 is 2, pq=8 and pr=12. what are the possible coordinates of the midpoint of the given segment qr

70. math

explain how you can find the sum 25+59 using mental math

71. language

I am trying to do a report on the following and can't find any sites that contain info to make report. Looking for various types of humans that have lived on earth since time began. thanks for any help

Simplify the expression: (x^9y^-4)^6 x^54/y^24 Is this correct?

73. spanish

and then from this i got 2 correct Modelo: You want to greet Mrs. Gutiérrez. It is 10:00 A.M. Buenos días, señora Gutiérrez. 1. You want to greet Mr. Gutiérrez. It is 2:00 P.M. Your response: Buenos días, señor Gutiérrez. es el dos de la mañana

74. Algebra Help

Write the equation of a perpendicular bisector of the segment joining the points: (7,2) and (3,0). Okay, so I don't even know what a bisector is. Is there a formula for this or something? If some could someone tell me it. Or tell me the process.

75. Chemistry

What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.

76. psychology

Within groups, differences in intelligence are highly correlated with_______. Between groups, differences are highly correlated with ________. a) heritability: environment b)environment: genes c) heritability:random error in measurment d) genes: the

77. Physics

100= 1/2 50 v* v=? *squared* 10=(50-v)/4 v=?

78. math

You make \$ 90000 a year, and you get a 10% raise. Your new salary is \$ .??? The next year you get a 10% cut. Your new salary is \$ ????. That is ??? % less than your initial salary. How would I go about solving this??

79. calculus

Find the anti-derivative of x^4... Isn't it 4x^3+c? Please help... Thanks!

80. reading (Beloved by Toni Morrison)

In the book Beloved by Toni Morrison, who or what is Beloved? (need at least 3 theories, suggestions, guesses, etc)

81. English

can anyone come up with an idea for a short narrative for the poem "In the tube" by Richard Aldington. it has to fill a gap in the poem, in other words it has to say what it hasn't in the poem. the focus is on 'marginalization' i have to write an

82. math

What if Julie is thinking of an even number between 12 and 29with digits whose difference is 7? What is the number?

83. conversion problems

convert 3.1 L to quarts

84. pre-algebra

Think of a 1-9 multiplication table, are there more odds or evens, is it different from a 1-9 addition table

85. MATH!

bob and his dad visited the hardware store on saturday. they observed the following transaction: Mr. Harris bought 4 for \$0.50, Mrs. clark bought 21 for \$1.00, Mr. Montaro bought 1,134 for \$2.00 and Ms. Park bought 450 for \$1.50. what were they buying?

86. English

I had to write five sentences in which I used 5 different tenses. Here is what I wrote: Education helps financial planning by giving basic skills needed for better jobs and higher wages. (Present) Education will help financial planning by giving basic

87. science

writ the following science ideas mathematically using symbolic representation You learn that for every 1,000 meters you know the temperature drops by 6`c. You have the idea that if you know the temperature at the base of a mountain and its height you can

88. domains of development

describe why it is important to consider each domain in the study of adult development

89. math

a car is traveling at the rate of 40 miles per an hour. how many minutes will it take it to travel 220 miles? 220/40=5.5 5.5*60=330 330

90. math

14m^2n-6m^2n= a- 20m^2 b- 8m^2n c- 8m d- 8 e- 8m^4n^2

91. math

2/3=n/72 3n=144 144/3=48 48

92. math

Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

93. science

A mixture of two gases, Xe and H2, has the properties listed below. PXe=190torr PT=250torr What is the ΧH2 for this mixture? I'm sorry I really don't get this.

94. Cultural Diversity

what are two to three characteristics of Orientalism? How may Orientalism and prejudice contribute to hate crimes against Muslim and Arabic groups?

95. algebra 2

1/5(b+10)-7=1/3(b+9)

96. ALGEBRA 2 W/TRIG

What is the slope for y=3/4x+1?

97. spanish

in Latin America, to several friends Your response: ellos Points earned: 0 out of 1 what pronoun would you use??

98. Math

how do I graph the equation 2x+y=0?

99. algebra1

which expression represents x? _________________________ x ^ 5 _________________________ 12 a) 12-5 b) 12 + 5 c) 12(5) d) 12 divied by 5... my answer is A, is it correct?

100. Critical thinking

Explain in a easy way of abiguity

asked by dave johnson
101. math

i don't know how to get rid of the fractions in these linear equations, can someone help ? one: 9/2(x+3) -4 =23 two: 3/4(24-8x)=2(5x +1)

102. biology

do some seeds have no cotyledons?

103. Chemistry

What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.

104. science

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

105. Child psychology

Studies on the development of sexual orientation highlight the importance of A.genetics B. environment C. prenatal hormones D. multiple factors I said A the enviroment, Now thinking its D

asked by Anonymous 2
106. math

n/12=3/4= 4n=36 36/4=9 9/12=3/4 9

107. math

1.032+0.987+3.07= 1.032+0.987=2.019 2.019+3.07=5.089 5.089

108. math

(2r+s)14r= A-28rs B-15p^4t C-15p^4t^2 D-8p^2t e-8p^4t^2 c

35ab/105bc

110. 8th grade math

The area of Manhattan Island is 641, 000,000 square feet. According to legend, the Indians sold it to the Dutch for \$24. Estimate the area that was purchased for one cent.

111. science

fog forms whenever there is a loss of heat from the earth through

112. us history

where can i go to read a text book if i forgot it at school

113. chemistry

Fill in the blanks. (a) 5.6 ft2 = ____ in2 (b) 5.6 yd2 = _____ ft2 (c) 5.6 m2 = ____ yd2 can you please explain how to do it

114. science

how are fossil fuels a part of the carbon cycle?

115. English

1. When you call to others, use the home phone. 2. Call to others' home phone numbers. 3. With the home phone, call to others' home phones. Don't use cell phone when you call others' cell phones. Use the Interphone. It's much cheaper. (Are the expressions

116. IDk wut subject

how do you know if a penny is pure copper?

117. English

Sometimes he painted in his studio based on the sketches he drew outside. (is this sentence grammatical? What is the sense subject of 'based'? What other sentences can we make which have the same meaning?)

118. math

Explain what benchmark you would use to estimate the number of people that can ride on a bus.

119. algebra1

for many skyscrapers, the height of one story is equal to about 12 feet. (a. write an expressing that approximates the height in feet of a skyscraper that is s stoires tall. (b. estimate the hieght in feet of skyscrapers that are 20, 24, 28, and 32 stories

120. History

Please can anyone check my answers to this question if is correct or not. Thanks. Question 1 In 1907, in order to balance the Triple Alliance, the Triple Entente was formed by Answer (A)Italy, France, and Britain. (B)France, Russia, and Britain. (c)

Already Tried: Proposal to Solo Practitioner or Head of Firm For your Midterm Project, you will draw upon what you have learned so far in this course. Recall back to Unit 2, where you developed guidelines for ensuring network security in your office. In

122. phy

what assumption have you made in performing the free fall lab experiment and analyyzing the results?

123. Calc HELP!

an equilateral triangle is one in with all three sides are length. If two vertices of an equilateral trangle (0,4) and (0,0), find the third vertex. How mant of these triangles are possible? How would you sove this???

124. math

which number is greater 3.546 or 3.56

125. trig

How do I find 2 tan squared time x = sec times x -1

-1

127. science

When cold air moves below warm air (which rises), we feel _______, depending on how fast the air moves. a) an earthquake or earth tremor b) a drizzle or rainstorm c) a breeze or wind d) a tornado or thunderstorm d

128. math

cos((sin^-1) 1/2)) sin^-1(sin 7pi/6)

129. math

the circumference of the circle is 24cm what is the radius? 24=2 pi r 24/3.14=8 8/2=4 4cm

130. language fundemtal

nouns? happy child

131. math

a wheel has a diameter of 31.8 inches. what is the circumfernce?

3% of 80 2.4

133. math

unscramble letters into 3 words m a s r r l a e a e h c d d i

134. Alg 2

Complete the equation for te function picturEd in each mapping diagram. The domain is 1,2,3,4 and the range is 2,4,8,16. The equation is a number times X what's the equation. The book says that the answer is 2x but I don't know how they got that. Please

7.5*100=7500

136. math

16/24=_________ 16/8=2 24/8=4 1/2

137. MATH

WRITE IN WORD&EXPANDED FORM 4,568,347

138. History

Thanks, for for your suggestion.Please check on the following questions, if I have the correct answers. Question 1 During World War I the most striking break from pre-war conditions on the home front was Answer (A)the use of volunteer armies. (B)central

4+6x-9x=3x

two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful

141. math

sin^-1(sin 7pi/6)

142. chemistry

28.66ml(.7857 g/cm cubed)= meters

143. algebra 1

please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line

144. math

why, when doing probability and rolling dice with inclusive numbers.... do you subtract 1 ?

145. algebra

what is four less than eighteen

146. mat115

please help with math problem. Can you show me the work. 7(-7)-7(2-3) ____________ 2(-6+9) Thanks for your help!

147. science

what is a control?

148. history

what presidents make up mt rushmore

149. mat115

Please help me with this math question. I am asked to show my work but I don't know how to solve the problem to show my work. The question is: Choose the correct list of factors of the number 8. Again, I have to show my work with this question. Please help

150. Algebra

Write the equation of the line that passes through the (-2,1) and is perpendicular to y=5. Okay, I don't understand how I can do this without a slope.

151. algebra

what is -2=6/7p

152. geometry

the length of a rectangle is 9 inches. write an expression for the area of the rectangle if the width is w inches. find the area of the rectangle when the width is 1,8,9, and 11 inches.

153. math

Explain what benchmark you would use to estimate the number of people that can ride on a bus.

154. science

what is the meaning of denitrification?

155. Algebra

how do i get rid of the fractions in this expression ? its supposed to be using order of operations original problem: (6^2 + 18) divided by 9 + 2/3(8)-6

156. mat115

Need help with this math question and need to show work. A computer transmits 11 web pages in 4 seconds to a web server. A second commputer transmit 33 pages in 8 seconds to the server. are these two computers transmitting at the same speed. Yes or no and

157. mat115

need help with computing this problem: -81 + (-13) need work shown. Thanks for your assistance

158. math

What geometrical shape is a top hat?

159. high school

Explain in your own words the difference between an account that is earning simple interest for 5 years and another account that is earning interest that is compounded annually for 5 years

160. Math

Vehicle A averages 14 miles per gallon of gasoline, and Vehicle B averages 36 miles per gallon of gasoline. At these rates, how many more gallons of gasoline does Vehicle A need than Vehicle B to make a 1,008-mile trip?

161. mat115

Need assistance with this problem. I have computed the problem but my answer isn't matching one of the multiple choices. What am I doing wrong? 11-6 ____ 7-7 11 - 7 = 4 4 - 6/7 = 3 + 7/7 - 6/7 =3 1/7 which is the same as 22/7 the multiple choices on my

162. science

The measure of the weight of the air above us is called "________."?

163. science

Hail is only observed directly under the cumulonimbus cloud in which it's formed. a) true b) false

164. algebra1

can someone please tell me if my answers are correct to my previous question...

165. math

what is the largest whole number x for which 2x is less than 13.7?

166. chemistry

28.06 mL to grams

167. math

what are some rational expressions used by accountants

168. economic

Imagine that you are a business owner. Choose whether to hire a new person in the marketing department or upgrade your computer system. Each choice requires the same amount of investment. Address the following topics: What factors do you use to determine

169. literature

hopkins's use of "seared","bleared",and "smeared"is an example of?

170. math

what is the prime factorization of 84 a-2^2x3x7 b-2^2x3+7 c-2^3x3^2 d-2x3^2

171. science

how to find out the mass of your shoe

172. math

evaluate 7/15 + 2/5 7/6 + 1/4 + 7/12

asked by Sammy J
173. math

A pack of 250 key blanks cost \$23.50. What is the unit price? If each key costs a customer \$1.75, and it takes 2 minutes for Darren to cut a key, how much does Darren make per hour? If Darren, as the business owner, pays himself \$800 per week, how much

174. math

Simplify the expression: (x^9y^-4)^6 x^54/y^24 Is this correct?

Which of the following sentences advocates an idea in a positive way? A."I can't see anyone buying the product at that price." B."The unit is way overpriced." C."Customers can get a better deal anywhere else." D."We can corner the market if we discount the

176. Chem 2 enthalpy

How much heat is evolved when 25.5 g of benzene freezes at 5.5 Celcius (molar heat of fusion is 9.94 kJ/mol and molar mass of benzene= 78.0 g/mol)

177. math

have to label the sides of a vertices

178. math 5th grade

Q 1. Find all the multiplication combinations you can for these two numbers, using whole numbers. Start by multiplying two factors. Then find ways to multiply with more than two factors. 18 & 180 Q 2. How did finding the ways to multiply with two numbers

179. science

the absorption of heat by any substance is dependant upon

180. algebra1

evalute each expression for r=6, s=5, and t=3.... sr, 56? what do i do next? i don't think i can do anything else, pls help me

181. Math

Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

M/5=30 M=?

183. digital photagraphy

What would be in the priiciple of design abobut a tree in front, and the backround being dark?

184. algebra 1

for many skyscrapers, the height of one story is equal to about 12 feet. (a. write an expressing that approximates the height in feet of a skyscraper that is s stoires tall. (b. estimate the hieght in feet of skyscrapers that are 20, 24, 28, and 32 stories

185. Rational Expressions and Equations

How do you know when to move the number to the left or the right. For example (x-5)/(x+8)=5/7 or (y-2)/(y+2)=3/7

186. calculus help

Find the points where the tangent line is horizontal or vertical. Find the area under one period of the curve. x= r(deta - cos deta) Y= r(1- sin deta)

187. 12th grade - Math

Explain. 1.) To solve x(x-5)=0 either factor may be equal to zero. 2.) | 8-15i | = 17 3.) The solution for x^2 = -2 cannot be found graphically. [any help or explanation is greatly appreciated]

188. Math

how do you add,subtract,and multiply decimals? please don't put a link.

189. science

how long is earths orbit and its roatation?

If a parking meter has 100 coins in it that add up to \$14.50, how man are dimes and how many are quarters?

191. English

I just would like to know if the following sentences are possible. Thank you. She wasn't allowed to enter the bus.(or get on/take the bus?) The price of sugar increased of 20% (better by?)

192. Psychology

Within groups, differences in intelligence are highly correlated with_______. Between groups, differences are highly correlated with ________. a) heritability: environment b)environment: genes c) heritability:random error in measurment d) genes: the

193. Calc. Help

Simplify. #1. 5(2-i) - 3(4+3i) ..my work: 10-5i-12-9i -2-14i Do you leave this as the answer or can you simplify it further? #2. (2-i√2)²

194. math

Aparty has a \$500,000 IRA. How should he divides the money into fund A for 5.2% annually, and Fund B for 7.7% annually, to produce an annual income of \$30,000?

195. chemistry

to DrBob222 wouldn't it be like this then 4.86L/12.75kg*1000cm^3/1L*(1kg/1000g)^3

196. computers

How does organization culture play a role in the successful reliance on the JAD process to identify and gather business requirements? Would JAD work in your company? Why or why not?

197. 5th grade math

what is 2 to the first and second power? component problem

198. Intermediate algbra

How can I solve t^4 - 11t^2 + 18 = 0

199. math

50% of 182 182x.50=91 91

200. science

THE VOLUME OF A GLASS OF JUICE

201. math

x+y=7 x-y= -3 2+5=7 2-5= -3 7,-3

202. math

4/n = 8/5 8n=20 20/8=2.5 2.5

203. math

28/32 28/4=7 32/4=8 7/8

204. math

4x-2=10 4x2-2=10 2

Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

206. Rational Expressions

How do you know when to move the number to the left or the right. For example (x-5)/(x+8)=5/7 or (y-2)/(y+2)=3/7 I know the first problems answer is 2/75 and the second is 5 and in both cases I seem to mess up on the last part of moving the numbers like

I am woking on Patterns and Inductive reasoning. I need help on numbers 14-16. Find the next two sequence. 14. Martha, Abigail, Martha, Dolley... 15. Geroge, Thomas, Abe, Alexander.... 16.Aquarius, Pisces, Aries, Taurus.... Please help me!

patterns

209. science

As the atmosphere heats, the air _______ and becomes _________.?

210. math

Roundes to the nearest ten I am 40. The sum of my digits is 11.

211. computer science

Describe how an operating system that uses paging could make stacks grow dynamically if the original size proves too small. What would the page table data structures look like? Explain what would happen when a thread's stack grows past the area that has