# Questions Asked onAugust 24, 2010

1. ## chemistry

how would you prepare 1.00 L of 0.50 M solution of NiCl2 from the salt nicl2·6H2O? thanks :)

2. ## Math

A donkey (D) and a mule (M) were carrying sacks of apples. The donkey groaned so the mule said to him, "Why are you complaining? If you gave me one sack, I would have twice as many as you; if I gave you one of my sacks, then we would have equal loads." How

3. ## college physics

Each of four particles moves along an x-axis. Their coordinates (in meters) as functions of time (in seconds) are given by: Particle #1: x(t)=2t^2-4 Particle #2: x(t)= -3t-4 Particle #3: -2t^2-4 Particle #4: 2 *[sq. root (t+1)] -4 Which of these particles

4. ## Algebra 2

Make a table with a process column to represent each pattern. Write an expression for the number of circles in the Nth figure. The first figure is 5 circles long and 2 circles wide, the second 5 circles long and 3 circles wide. How do I complete this

5. ## chemistry

how would you prepare 1.00 L of a .50M solution of H2SO4 from concentrated (18M) sulfric acid?

6. ## statistics

Use the random-number table to simulate the outcomes of tossing a quarter 25 times. Assume that the quarter is balanced (i.e., fair). (Start at row 1, and let 0, 1, 2, 3, 4 indicate heads and 5, 6, 7, 8, 9 indicate tails. Enter H for heads and T for tails,

7. ## trig

Given that tan 45=1, use tan(x+y) to show that tan 22.5= /2 - 1. (/is square root sign

8. ## Chemistry

In water conservation, chemists spread a thin film of certain inert material over the surface of water to cut down the rate of evaporation of water in reservoirs. Franklin found that 0.10 mL of oil could spread over the surface of water of about 49 m

9. ## Physics - Forces

A 42kg girl jumps on a trampoline, after stretching to its bottom limit; the trampoline exerts an average upward force on the girl over a diplacement of 0.50m. During the time that the trampoline is pushing her up, se experiences an average acceleration of

10. ## physics

In 1989, Carl Lewis established a world record when he ran the 100. meter dash in 9.92 seconds. What was his average speed (in m/s) for the race? Remember to include your data, equation, and work when solving this problem

11. ## math

which of the following expressions shows the equation to use in the finding the dimensions of a cube N by N by N with a volume 125 1) n3=125 2) n2=125 3) 3n=125 4) n=125/3 5) not enought info given need help with this problem!!

12. ## calculus

Solve this over the interval [0,2pi): sin(3x)=(square root of 2)/2

13. ## trig

Given tan A = .29 find the angle A in degrees. Round your answer to the nearest hundredth.

14. ## AP Physics

A rock thrown straight up with a velocity of 30 m/s from the edge of a building just misses the building as it comes down. The rock is moving at 47 m/s when it strikes the ground. How tall was the building? The accelera- tion of gravity is 9.8 m/s2 .

15. ## math- Calculus

If lim x->6 f(x)g(x) exists, then the limit must be f(6)g(6). True or false? Explain why it's true or false. Help!

16. ## home inspection

Which of the following is the main purpose of home inspection societies and professional associations? A.To license and regulate home inspectors B.To "self-regulate" the home inspection industry C.To certify people starting out in the home inspection

17. ## chemistry

How can i calculate the concentration of each ions remaining in the solution after precipitation is complete? ok heres the full question:: 2KOH + Mg(NO3)2 -------------> 2KNO3 + Mg(OH)2 a 100.0 mL aliquot of 0.200 M aqueous potassium hydroxide is mixed

18. ## literary

Do you think that certain literature should be taught and/or anthologized because it is written by a woman or underrepresented ethnic group, even if it is at the expense of a "more inspiring" author? Do you think you would feel the same way if you were a

19. ## Chemistry

How to solve this: One isotope of a metallic element has mass # of 65 and 35 neutrons in nucleus. The cation derived from the isotope has 28 electrons. Write the symbol for this cation. Would the symbol be Cu? because Atomic # = protons = electrons and

20. ## Chemistry

How can i calculate the concentration of each ions remaining in the solution after precipitation is complete? ok heres the full question:: 2KOH + Mg(NO3)2 -------------> 2KNO3 + Mg(OH)2 a 100.0 mL aliquot of 0.200 M aqueous potassium hydroxide is mixed

21. ## English check

1.)Supported the ideas of plainness, divine mission, and grace =a.)The North--Puritanism b.)The South---Gentlemen Planters c.)Both 2.Came to America to find freedom to worship and the Promised Land =a.)The North--Puritanism b.)The South---Gentlemen

22. ## college physics

An object thrown vertically upward with initial velocity from the surface of the Earth reaches a height H before falling back toward the Earth. If initial velocity is doubled, the object reaches a maximum height equal to ________. Ignore air resistance.

23. ## 11th grade Chemistry 1

If your weight is 120 pounds and your mass is 54 kilograms, how would those values change if you were on the moon? The gravitational force on the moon is 1/6 the gravitational force on Earth.

24. ## algebra

Diagonal brace. The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures square root of 6. Find the width and height.

25. ## Math

Evaluate the difference quotient for the given function. f(x)=1/x, f(x)-f(a)/(x-a). Is the answer 1

26. ## Physical Science

The density of sea water is slightly higher than that of fresh water. The higher density is due to the fact that sea water contains salts such as sodium choride and magnesium chloride. Suppose you have a container that holds 5.00 kg of freshwater, which

27. ## General Chemistry

Given 115 grams of Na2SO4 find: a. the # of moles in sodium sulfate b. the # of moles in sodium ions Please explain all work and fully explain where each # came from. Thanks.

28. ## science

what is a hypothesis? or something like that.

29. ## English: Ms. Sue

Ms. Sue you've helped out in the past haha maybe you can help me again :D we learned about objective and subjective opinions authors may have today and although I got every other question, I can't seem to figure out the following three: tell the objective

30. ## physics

A first object is thrown vertically upward with some initial speed and some initial height above the ground. Simultaneously, a second object is thrown straight down with the same initial speed and same initial height above the ground. Before the second

31. ## college math

the height (in cm) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with s slope of -0.4 suppose the height of the candle after 14 hours is 18.45 centimeters. What will be the

what is the number of protons in Oxygen?

33. ## English

we learned about objective and subjective opinions authors may have today and although I got every other question, I can't seem to figure out the following two: tell the objective and subjective opinion in each statement and list if the subjective opinion

34. ## Language Arts

Use the fallowing sentences and use vivid verbs and adjective to rewrite the sentences. The sentences that I'm having problem with is : I play video game. Could anyone give me idea on how to improve that sentences? Thanks

35. ## algebra

Hoe do you do the equation 8y=4x+16 solve for y and x

36. ## Biology Diffusion

This is what i read from wikipedia: "Dialysis tubing is not permeable to glucose." Is that true? Visking tubing (Dialysis tubing) DOES allow glucose molecules to pass through it right?? So what types of molecules can pass through visking tubing? Can

37. ## math

If the oldest individual in an office is 57 and the range of employee ages is 29, what is the age of the youngest person in the office?

38. ## Maths - Properties of Planes

write a scalar equation, given it's vector equation. [x,y,z]= [3,7,-5] + s[1,2,-1] + t[5,-2,3] ( I remember my teacher saying that you have to cross s and t, and that will be my normal and thereafter I substitue the point to find the 'D' value of the

39. ## phy

1. A Uniform rod AB 3m long weighing 3 Kg is held horizontally by two strong vertical strings at its ends. A weight of 7 kg is hanging on the rod at a distance of 1m from end A and another weight of 12 Kg is hanging at 0.5 m from end B.(a)Make the free

40. ## College Alegebra

The line through (1, 3) with slope of 1/2 (I used the point slope equation) y-y1 = m(x-x1) y-3 = 1/2(x-1) (work the parenthesis first) Y-3=1/2x-1/2 +3 +3 Y = 1/2x+5/2 LCD of 2 to convert fractions into whole numbers. 2y = x+5 Answer, however I need to

41. ## biochemistry

A weak base has pKb = 9.25.. A. Calculate the % ionization at pH = 8.25 B. Calculate the % ionization at pH = 10.25 C. What is the pH when 50% of the weak base is ionized?. Is calculating ionization for pkb the same as pka? How do I go about doing it?

42. ## AED 204

In 200 to 300 words name two other factors that have potential to prevent equality in education. Elaborate on the two you choose. Other than the obvious obstacles of prejudice and discrimination (such as, boys getting more attention than girls; minorities

43. ## Math

A man left his property to his wife, his son, his daughter, and his sister. His son and daughter got half of the property, sharing in the ratio of 4 to 3. His wife got twice as much as the daughter. If his sister received \$15,000, what was the value of all

44. ## high school algerbra class

2/x^2-4+3/x^2+x-6+1/x+3 Could someone help me with this fraction? I have tried to answer it over three days now without any luck. If anyone can help please show the steps,so I can see how you got the answer. Thanks in advance!!!

45. ## algebra

Select the ordered pair from the choices below that is a solution to the following system of equations: 4y = x - 13 2x + 16y = 20

46. ## Math

Solve the following equation 1) root(2x+4)= root(6x+1) -1

47. ## science

Ozone, a gas found in the upper stratosphere and lower mesosphere, would burn our throats if we tried to breathe it. ozone is composed of

48. ## Trig

verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0

49. ## Accounting

Please check my answers. Identify each of the following as either assets, liabilities, or owner's equity. 1. Petty cash- Owner's Equity 2. Mortgage payable- Liabilities 3. Furniture- Assets 4. Owner's Capital- Owner's Equity 5. Food inventory- Assets 6.

50. ## University of Phoeniz

What does je dois aerer pour vivre mean?

51. ## social studies

who did the mexican american war favor?

52. ## statistics

A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the

53. ## Algebra

How do I express this in algebraic form? And could you please explain how you came up with the expression? "Come up with a number. Add 3 to it. Muliply by 1 more than the original number. Subtract 3. Divide by the original number. Subtract 4. You should

54. ## math

A certain medicine is given in an amount proportional to a patient’s body weight. Suppose that a patient weighing 100 pounds requires 125 milligrams of medicine. What is the weight of a patient !@#\$%^&quires 200 milligrams of this medicine? I am totally

1. Use the Internet to identify an example of a real-life team. Be sure to choose one that meets two criteria: (1) it’s not part of a for-profit business and (2) you can argue it’s highly effective. State the name of your team list its web site and

56. ## Math

Solve for the indicated variable p I don't know what you do to solve it. A=P+Prt

57. ## com 285

E-mail etiquette

58. ## algegra

find an equation of the line that is parellel to the line y=-4x+3 and that passes throught the point (-1,-8) HELP!!

59. ## math

4.2 18. show that the equation 2x-1-sinx=0 has exactly one real root.

60. ## Math

Solve for y x-2y/5=3(y+2)/4 +3 This is what I did and I don't know if it's right or what to do next. Find the Lcd which is 20. I get: 4x-8y=15y+30=60 I don't know what to do from here. I'm so confused.

61. ## math

what is range

62. ## Maath

Solve the equation for the indicated variable. 4x-3a-(10x+7a)=0 solve for x This is all I know how to do & don't know if it's even right. 4x-3a-(10x+7a)=0 solve for x 4x-3a-10x-7a=0 -6x-10a=0

63. ## Maths - Properties of Planes

Wrtie a scalar equation given it's parametric equation. x = 3-2s+2t y = 1+3s+t z = 5-s-2t

64. ## Math

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

65. ## Math

What is the easiest way to figure this out? 5 yrs 21 days 4 hours 32 min 17 sec _ 2 yrs 93 days 7 hours 47 min 24 sec _______________________________________

66. ## Physics - Satellite Motion

Calculate the acceleration of two different satellites that orbit Earth. one is located at 2.0Earth radii and the other located 4.0Earth radii.

67. ## science

Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic

68. ## HUMANITIESSSS!

Was Pope Gregory VII trying to purify the Church of corrupt bishops or trying to increase his power over kings? I know for sure that the answer is to increase power over kings. But I don't exactly know WHY.

69. ## math

how to solve logarithms symbolically? log17(17)^(x+3)= log7(1) thank you

70. ## English

I'm sorry I don't think I'm following. I re-read the sentences and it's obv that the answers aren't meant to be clear, but I'm finding it hard to distinguish the difference. am I supposed to separate the sentences "in half" with a part being subjective and

71. ## MATH!!!!!!

16b^2 - 25z^2 = A- (4b-5z)^2 B- (4b+5z)^2 C- (4b-5z)(4b + 5z) D- (16b-25z)^2 E- (5z-4b)(5z+4b)

72. ## Language Arts

Does anyone know a word that mean the same as " a computer's user"? I try googling and all I got was "Hacker".Thanks

73. ## algebra

What is 7/16+2x=9/8 if you solve for x?

74. ## MATH

( 6t^2 + 2t + 1 ) 3t A) 9t^2 + 5T + 3 B) 18T^2 + 6T + 3 C) 9T^3 + 6T^3 + 3T D) 18t+6T^+3T

75. ## Chemistry

Please explain the process of diffusion.

76. ## english

is the vowel sound in the word cat a) a front low short sound b) front low long sound im guessing A because how CAT is spelt "kaet" ae is a short vowel

77. ## Math

So i was given a graph of h(x) and i am supposed to approximate h^-1(3) but i'm not sure about how to do it. could anyone tell me how to find the solution? THANKS!

78. ## physics

two llong parallel vertical wires 0.3m apart are placed east-west of one another.The current in the eastely one is 30A and that in the other is 20A.Both currents flow upwards.The earth"smagnetic field is horizontal directed north and has magnetude field

79. ## English

Is there a story in America Street, edited by Anne Mazer, similar to The Journey by Duane Big Eagle?

80. ## algebra

How do you do the equation 8x+20y=10 solve for y and x

81. ## math

from the looks of things I am in good company when it comes to having problems solving algebra equations. I hope you can help with this one I have been working on for two days and still don't understand. I need ordered pairs for y=5x-8 and the y intercept.

82. ## physics

A car starts from rest with a velocity given by v=kt^3 where k is a constant. The expression for the distance traveld by the car from its position at t=0 is: a] 3kt^3 b] kt^3 c] 6kt d] kt^4/4

83. ## Psychology

How do you think individual personality characteristics influence social and occupational choices?

define these terms or questions: what is an inital observation? what is an independent variable? what is an dependent variable? what is a control group?

85. ## algebra

Sharing cost. The members of a flying club plan to share equally the cost of a \$200,000 airplane. The members want to find five more people to join the club so that the cost per person will decrease by \$2000. How many members are currently in the club?

86. ## CONFUSED~MATH

if f(x) = (x/7)-3 find f^-1(x) I'm completely lost! Help

87. ## environment and health

THE QUESTION IS EXAMINE THE LINK BETWEEN ENVIRONMENT AND HEALTH and ILLUSTRATE HOW CHANGES IN THE BUILT ENVIRONMENT CAN BE HEALTH PROMOTING. SOME USEFUL GUIDELINES:From quickly looking at the question, I think that you need to include the following areas

88. ## math

3x + 2y +16z +3z + 6y = 19x + 8y 3z

89. ## Maath

5(4r-3c)-2(7r-9c)=0 solve for r This is all I know how to do and don't know if it's even right. Or what to do from here. 5(4r-3c)-2(7r-9c)=0 solve for r 20r-15c-14r-11c=0 6r-26c=0

90. ## english

what would the complete subject and simple subject be of the following sentence Some people like to take classes to learn new things

91. ## math

24b^4c^3 / 6b^2c A) 3b^2c^2 B) 4b^4c^2 C) 4b^3c^2 D) 4b^2c^2 E) 3b^4c^3

92. ## Biology

Lisst some nonliving things and tell what characteristics each has in common with a living thing

93. ## Math

How many sig figs does tan^-1(9/7) have?

94. ## MATH

-3p + 1 > 16 A) P > -5 B) P > -17/3 C) P < -17/3 D) P < -5 E) P > 5

95. ## math

I am supposed solve these SYMBOLICALLY but i don't know how since i was never taught in school. Could someone help me solve these? 1. 7(e^(2x))^3 = 35 2. 7^(x^2-x)=7^6 3. log3(5x)=4 Thank YOU very much!!

96. ## biology

Over a period of time what happens to carrots if placed in water and salt?..

97. ## sociology

arlie Hochschild? rsearch indicated what

98. ## physics

A box is pushed without acceleration 9.0m along a horizontal floor against a frictional force of 100N. How much work is done?

99. ## algebra

solve for y and x, please show steps 3x+3y=9

I have to write an insightful handwritten reflective response via essay about a passage in a novel. The passage is about 3 sentences. It is a summer reading book. How many pargraphs do i need and help with layout of essay.

101. ## LIT 210

Which author do you think most effectively utilized dramatic literary devices and conventions—Sophocles or Lorraine Hansberry? Explain your answer.

102. ## Chemistry

How would I determine the ratio of neutrons and protons in the nucleus of each atom? 1) He 2protons , 2 neutrons

103. ## social studies

what are types of land and waterways also known as? Physical features or landforms?

104. ## math/multiplying decimals

I know how to multiply ,but i have to use it in a model. 0.2 x 0.7 the answer is 1.4 show my how to use a model to solve.

105. ## algebra word problem

During the first part of a trip a canoeist travels 55 miles at a certain speed the canoeist travels 15miles on the second part of the trip, 5 miles per hour slower. The total time for the trip is 4hours. What was the speed on each part of the trip. This is

what is a root word

107. ## MATH

Does g squared-9 have factors? (g squared minus 9)]If so, how come they don't have any "middle terms"?

108. ## math

HOW MANY \$2 DOLLAR TICKETS DID WE SELL? 240 SOLD AT THE SCHOOL CARNIVAL COST \$1 AND \$2 \$3 WORTH OF TICKETS

109. ## computers

can the linear nested IF/ENDIF structures can contain other decision or looping structures inside their code block

110. ## Calculus

(sin(47))^2 + (cos(43))^2 = With the correct number of significant figures.

111. ## STASTICS

If the median home price in your area has decreased in your area in the last 2 years, how does this differ from the mean price in your area? Please explain why and include examples.

112. ## math

4/N = 8/5 8 / 4 = 2.5

113. ## History

(1) Which is not a reason why the Nazi regime ultimately lost the war? (2) What role did the United State play in the European conflict before December 7, 1941?

114. ## com 155

· Use at least five adverbs and five adjectives to write a 150- to 300-word review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events.

115. ## English

Im writing an essay and i need to know how religion of the ancient times has influenced western civilization?? Any info?

116. ## math

7Z+1-Z=2z-7 is z = -2

117. ## algebra

what does x equal in the equation 3x-35=9x-59

was pope gregory VII trying to purify the church form corrupt bishops or tryingto increase his own power ?

119. ## math

3X + 2Y + 16X + 3Z + 6Y = 19x + 8y + 3z

120. ## physics

How deep can a diver go without a pressure suit? How deep can we go with a pressure suit?

121. ## Math

Rewrite this without the coefficient. Example: 3m = m+m+m However, I cannot seem to figure out what to do with this problem: -5m^3n^2 I can't figure out how to rewrite so the -5 is gone and without changing the exponents!

122. ## math

how do you find the length of a leg in a trangle with only one angle and one line measurement?

123. ## journalism

What first organized as a press in 1907 by E.W. Scripps and later merged with International News Service?

124. ## math

julie is thinking of an even number between 12 and 29 with digits whose difference is 7? what is the number?

125. ## art history

o Describe how the Cold War ideology that crystallized after WWII changed wartime alliances that had existed during the war. o Describe how American Cold War policies and practices influenced international relations from the late 1940s to the mid-1950s.

what does unraavel mean

127. ## algebra

Select the ordered pair from the choices below that is a solution to the following system of equations: 4y = 2x + 10 8x - 3y = -14

128. ## college physics

A car starts has a position (in meters) given by x=kt^3 +2t where k is a constant ans t is in seconds. The velocity (in m/s) of the car at t=1 is:

129. ## English

What is the object of preposition in this sentenc? Sheepishly, she told her father the story.

130. ## math

Can someone please help me with this math problem. My teacher is looking for me to show my work, but I don't how to solve the problem to show my work. Please help!!! The problem is 2 1/2 + 3 1/4 + 3 5/8. Thank you for your help.

131. ## math

1/2x-3 - 8 C)x < 8 D)2 < x < 8 E)x>8

132. ## Philosophy

What ideas and events in Europe influence philosphy in the USA. How are these philosopies similar and different?

133. ## physics/math

Does the formula Sum of internal angles of a polygon = (n - 2)x180 degrees, where n represents number of sides, work for polygons of interacting sides?

express 3.84 as a fraction in simplest form

135. ## algebra

solve for y and x 2x+4y=8 show steps

136. ## algebra

solve for y and x show steps 4x+4y=7

137. ## science

Could anyone please explain this formula to me, and give me an example of how it is used? Pa=Xa*Pt the "a" and the "t" are subscripts.

138. ## conversion problems

150. cm to millimeters i got it to 1500mm. but it said check the number of sig figs.

139. ## dif. bet. Mm and mm

I was just working on a problem and i seem to keep getting it wrong. I think i might be converting wrong. all im wondering is.. is Mm the same as mm(millimeters)?

140. ## math Help

Okay so i know the domain of ~fx= 1 / (x^3-4x)~ is all real numbers except -2, 0, 2 so how do i express it in INTERVAL NOTATION? Thank You!

141. ## Math/Chem

1 teragram = __?___ kilograms how do you do this problem?

142. ## math

how do you combine and simplify (5x/(x^2+x-6))- (6/(x^2-x-2)) Thank you!

143. ## MATH HELP

14m^2 n^3 + 6 m^3 n^3 + 3m^2 n^3 = ANSWER: 23m^6 n^9

144. ## college algebra

how do you evaluate this matrix [12 -9] [-3 5]

145. ## math

The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. I am a prime number. What number am I? I think it is 19

146. ## medical information management

you're the chairperson of the form committee. discuss the basic specifications for designing a form

147. ## math

How many inches is in 3 3/4 yard? THANK YOU:))))

148. ## algebra

how do you do the equation y=x +6

149. ## MATH

4X-2=10 IS X =2

150. ## math

6x+5y=-4 3x-3y=9 A- 1,-2 B- 1,2 C- 2,-1 D- 3,-1 E- -1,2

151. ## MATH

0.4P+1=0.7P-2 IS IT 3

152. ## Math

i need help with diviging decimals.

153. ## math

how do I solve -7

154. ## MATH HELP

14m^2 n^3 + 6 m^3 n^3 + 3m^2 n^3 = ANSWER: 23m^6 n^9

155. ## english

write ur views on television has turned out to isolate people instead of bringing them together

write in scientific notation: 1.7500 2.75000000 3.1250

157. ## math

what is three over seven in simplest form

158. ## math

(x^2 + x-6) / (x-2) = A) x-3 B) x+2 C) x+3 D) x-2 E) 2x + 2

4T^3 - 20T =

160. ## MATH

(M^2 + M - 14)/(M + 4)= A- X-3 B- X+2 C- X+3 D- X-2 E- 2X+2

161. ## science

what is scientific notation?

3m+25/3 B-m