# Questions Asked onNovember 15, 2013

1. ## Chemistry

Complete this Bronsted-Lowry reaction, placing each product by it's appropriate label. HSO4- + BrO- ____ (ACID) + ____ (BASE)

2. ## writting skills part 2

which of the following sentences is written in the passive voice?

3. ## solid chemestry

A membrane is to be manufactured to the following specifications. The leak rate of hydrogen is not to exceed 10-3 mol-cm-2h-1 at 700 C when the concentration of hydrogen is maintained at 1.5 x 1019 atoms/cm3 on one side of the membrane and effectively zero

4. ## Math:Calculating Investment

How would I calculate this problem. plz help I don't know how to... An online store that has been successfully growing on its initial angel investment and revenues wants to invest \$5 million to expand the business. The bank is willing to lend the business

5. ## algebra

Solve D=1/2 fk for f

asked by Mia Dickerson
6. ## Algebra

Remove the parentheses from the following expression, and combine like terms: (a + b – c) + 3a – 2c A. 2a – b + c B. 4a + b + 3c C. 4a + b – 3c D. 2a – b – c

7. ## Chemistry

A solution is prepared by mixing 45.00 mL of 0.022 M AgNO3 with 13.00 mL of 0.0014 M Na2CO3. Assume volumes are additive. Calculate [Ag+], [CO32-], [Na+] and [NO3-] after equilibrium is established.

8. ## geometry

The measure of an angle formed by two secants intersecting outside the circle equals ½ the sum of the intercepted arcs ½ the difference of the intercepted arcs ½ the measure of the intercepted arc

Geometry ***(PLEASE CHECK MY ANSWER)*** 1. If triangle RST = triangle NPQ, which of the following is true? A.) ÚR = ÚP B.) ÚR = ÚQ C.) ÚT = ÚP D.) ÚT = ÚQ

10. ## chemistry

what mass, in grams of nacl formed from the reaction of 2.75ml of a 6.00M Na2SO4 solution and 8.30ml of a 2.50M solution of HCL

11. ## Check my answers?

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for

12. ## nature of science

which of the following is Not part of testing a hypothesis? A. reasoning B. modeling D. gathering evidence

13. ## Chemistry

Two new metallic elements have been discovered, Cimium (Ci) and Sadowium (Sd). Both the pure elements and their solutions form simple cubic lattices. The bond strengths of the Ci-Ci and Sd-Sd bonds are known, but not the Ci-Sd bond. Bond Bond Energy

14. ## college essay cover letter

Can someone edit this Dear Admissions, I was pleased to find that the University of Connecticut allowed for applicants to submit a writing supplement along with their applications. So, I have taken this opportunity to show the main experiences that I have

15. ## Chemistry

Determine for solid manganese (Mn) the following: What is the atomic density (atoms/m) along the [110] direction of the Mn crystal? What are the number of nearest neighbors around an atom in the Mn crystal? Calculate the interplanar spacing (m) between

16. ## internet basics

the characteristics of an instant message include all the following except a.its more structured b.it contains abbreviations c.its more formal d.occurs between pcs my answer is c

17. ## chemistry

which of the following alkane names is correct? a)2-methyl-3-propylhexane b)1-methylnonane c)1,2-dimethylhexane d)4,5-dimethylpentane e)all of the above names are correct

18. ## Statistics

In the following two questions, identify which choices would be considered inferential statistics and which would be considered inferential statistics. 1. of 500 randomly selected people in new york city, 210 people had O+ blood. a) "42 percent of the

19. ## criminal

What steps can local police departments take in order to implement a policy standard for dealing with illegal immigrants?

20. ## calculus

A dog kennel with four pens is to be constructed. The pens will be surrounded by rectangular fence that costs \$23 per meter. The rectangle is partioned into four pens of equal size with three partitions made of fence that costs \$12 per meter. Each pen

21. ## Algebra

Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 – c) + 2 22 A. –3(ax – b2 + 3c – 6 B. 3ax +3b2 – 3c + 2 C. 3(ax + 3b2 – 3c + 6 D. (ax + b2 – c + 5

22. ## American History

How did the textile mills develop in the United States?

23. ## math

numbers from least to greatest 11/20, 1/2, 0.51 numbers least to greatest 1/3, 1 1/4, 0.27,1.35

24. ## Earth space science, check answers?

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for

25. ## solid chemestry

A membrane is to be manufactured to the following specifications. The leak rate of hydrogen is not to exceed 10-3 mol-cm-2h-1 at 700 C when the concentration of hydrogen is maintained at 1.5 x 1019 atoms/cm3 on one side of the membrane and effectively zero

26. ## internet basics

which of the following meta-search engines was an attempt at natural language inquires a.dogpile b.internet sleuth c.metacrawler d.ask my answer is d

27. ## science

Calculate the time in seconds an Olympic Skier would take to finish a 5,000 meter race at an average velocity of 25 m/s downhill.

28. ## Math

I don't even know where to start with this. -_- As A and B range over all ordered pairs of distinct coprime positive integers, how many different possibilities are there for: gcd((A+B)^12, (A-B)^61)

29. ## English

1. Only then did I understand the problem. 2. Only then I understood the problem. (Which one is grammatical?) 3. Only after understanding the situation did he make a comment. 4. Only after understanding the situation he made a comment. 5. Only after

30. ## English

1. On the hill an old tree stood. 2. On the hill stood an old tree. 3. On the hill, an old tree stood 4. On the hill, stood an old tree. 5. On the hill it stood. 6. On the hill stood it. (Which ones are grammatical?)

31. ## Math

C:\Users\Owner\Pictures\Graph.png Each square on this graph paper is 1/4 Scale: 1/4 inch = 18 inches What are the actual dimensions of the sofa in inches? a. 90x45 b. 90x36 c. 75x25 d. 80x30

32. ## Geometry

If RS = 4x, Line RS approximately equal to line ST and RT = 24, then find the value of x. Can someone please help me, i don't understand this at all!

33. ## Trig

2 vectors act on a bolt. vector 1(1200/70 degrees) vector 2(900/205 degrees) then E = ? must show work!

34. ## math, facorinf

Find the LCD 19/y6-12y5+36y4

35. ## Math Question

Can y = 20x be a possible function rule?

36. ## Government

What is the state-level equivalent of the president?

37. ## biology

ou sequence many of the recombinant plasmids generated. You find three mutant versions of the inserted gene. (This is likely due to errors introduced during the PCR amplification.) The sequences of the gene found in the three mutants are given below.

38. ## Maths

How can I do 1/2y+3=9? I can only do y+3=9! HELP!

39. ## stastics

Salaries of 31 college graduates who took a course in college have a mean, x of 66,700 a standard deviation , o of 17,120, construct a 90% confidence interval for estimating the population mean u.

40. ## U.S. and Global Economics:Involving math

Just show me how to calculate it and I'll do the rest. I just don't understand how to calculate this problem. Thank you, An online store that has been successfully growing on its initial angel investment and revenues wants to invest \$5 million to expand

41. ## Chemistry

Hydrogen is a solid at low temperature and elevated pressure. Do you expect it to be a metal or an insulator?

42. ## writting skill part 2

read the word in parentheses; which of these sentences most effectively translates an abstract concept into a mental picture? a.(freedom) on her twenty-first birthday, lola declared herself a woman. b.(sunrise) the rising sun transformed the canyon into

43. ## statistics

an airline has a policy of booking as many as 24 person on an airplane that can seat only 23 (past studies have revealed that only 94 % of booked passengers actually arrive for the flight) find the probability that if the airline booked 24 persons, not

44. ## Maths

HOW DO I DO: 1/3(3x+9)=2x+3? HOW DO I SOLVE IT?

123

46. ## calculus

A closed cardboard box is made with a square top and bottom, and a square horizontal shelf inside that divides the interior in half. A total of 12 square meters of cardboard is used to make the top, sides, bottom, and shelf of the box. What should the

47. ## biochemistry

i am currently doing an iodine value lab an error occured in my results and i do not know how to write up the conclusion and the discussion

48. ## solid chem

A p-n junction is obtained at a depth of 3 x 10-3 cm below the surface by diffusion of antimony (Sb) into p-type germanium. What is the donor concentration in the bulk germanium if the diffusion is carried out for three hours at 790 C? Express your answer

asked by solid chem
49. ## solid chemestry

Diffraction from an unknown cubic metal is observed to occur at the following value of θ when using CuKα radiation. Determine the (a) crystal structure and (b) the atomic radius. 20.1o 29.2o 36.6o 43.5o 50.2o 57.4o 65.5o a. Crystal structure: SCFCCBCC b.

50. ## Chemistry

Complete these Brønsted-Lowry reactions: HSO4- + H+ HSO4- +OH-

51. ## solid chem

A p-n junction is obtained at a depth of 3 x 10-3 cm below the surface by diffusion of antimony (Sb) into p-type germanium. What is the donor concentration in the bulk germanium if the diffusion is carried out for three hours at 790 C? Express your answer

asked by solid chem
52. ## Math (ALGEBRA)

–2x(–3x 2y)(2y) = ? A. 12x3y2 B. –3xy2 C. 3xy2 D. –12x3y2

2. In several of the selections in this unit, immigrant parents play an important role. How does the fact that some of these parents are immigrants affect their children? Choose two selections and explain your answer. hi im sure some of you have read

54. ## Algebra

Divide –50m3n5 by –5m2n2. A. –10mn3 B. 10mn3 C. –45m5n7 D. 45m5n7

55. ## Algebra

Remove the parentheses from the following expression: (2y + x) ÷ z. A. 2yz + xz B. 2y/z + x/z C. Z/2y + x D. 2y + x + z

asked by Ashley Sammson
56. ## Physics

In a slide caliperse 99 divisions of main scale is equal to 100 divisions of vernier scale.Determine the vernier constant.

57. ## Science need help

Choose the words or phrases that most accurately complete the sentences below. One of the most effective measures that a government can undertake to reduce cardiovascular disease is to ………………..Individuals can also decrease their own risk of

58. ## Computers (Internet)

I have been doing research on my family for awhile, and it was hard because of my ethnicity. So, I have to write a statement of why it was difficult to do it. Could you help me on how I can write it. Like what should I bring up in my statement? Please

59. ## Algebra

Remove the parentheses from the following expression, and combine like terms: (2x + 3y – 4z) – (x – y – z) A.3x +4y+5z B. 3x + 4y – 3z C.x +4y–3z D. x + 2y – 5z

60. ## algebra

What is the first step you should take to solve the following expression: 2 – 16 ÷ 4 × (3 + 2)2 + 1 ? A. 16 ÷ 4 B. 2 – 16 C. 3 + 2 D. 22

24x^2y^2 ?

62. ## Computers (Internet

What does Submission number mean?

63. ## solid chemestry

Consider the gold-platinum system which has a value of delta w of -4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole.

64. ## Calculus

Find the particular solution of the differential equation particular solution of the differential equation dy/dx=(x−7)e^(−2y).

65. ## Calculus

Solve the seperable differential equation 8yyŒ =x. Use the following initial condition: y(8)=4. Express x^2 in terms of y.

66. ## math

Do I use the Foil method to find the product of (9-3i)(9+4i)?

67. ## Math

Unit Rates.. But trying to find the unit cost.. \$2.00/64 \$7.50/256 My answer for the first one is 32. Not sure about the second one .

68. ## Physics

A ball, of mass 0.3Kg, is held on the inside of a smooth hemispherical bowl at a height 0.09 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

69. ## Chemistry

a)The Young's modulus for a material is 5.0*10^10 N/m2. The material is stretched to a strain of 4.0*10^-3. How much elastic energy will be expended? (Express your answer in J/m3) Knowing that the energy associated with the formation of 1 mole of vacancies

70. ## chemestry

The Young's modulus for a material is 11.0 x 1010 N/m2. The material is stretched to a strain of 1.0 x 10-3. How much elastic energy will be expended? (Express your answer in J/m3) unanswered

asked by solid chem
71. ## Chemistry

You are operating an X-ray tube with a cobalt (Co) target by applying an acceleration potential of 53 kVolt. Calculate the value of the characteristic wavelength λKα. Express your answer in meters.

72. ## Math

How do you convert a map scale to a unit rate?

73. ## chemestry

Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1197 K. Assume the pre-exponential factor is one.

74. ## solid chemestry

A p-n junction is obtained at a depth of 3 x 10-3 cm below the surface by diffusion of antimony (Sb) into p-type germanium. What is the donor concentration in the bulk germanium if the diffusion is carried out for three hours at 790 C? Express your answer

75. ## Physics

A 153 g bullet is fired from a rifle having a barrel 0 . 794 m long. Assuming the origin is placed where the bullet begins to move, the force exerted on the bullet by the expanding gas is F = a + bx − cx 2 , where a = 12600 N, b = 8420 N / m, c = 10100 N

76. ## algebra

Solve D=1/2 fk for f

asked by Mia Dickerson
77. ## math

If m#= m/m^2-m ,what is the value of 6#-[(-5)#]? a. 1/30 b. 1/20 c. 1/4 d. 11/30 e. 9/20 please answer and explain

78. ## math

If #(a,b,c,d)means you subract the absolute value of d from the sum of a,b,and c,then #(2,5,6,-10)+#(1,2,3,7)= a. 2 b. 4 c. 16 d. 22 e. 36 please answer and explain

79. ## English

Can someone check my post? It's urgent. Thank you very much in advance! I like the urban look the most/the worst because it is so cool. These clothes are baggy and comfortable enough to wear anywhere/for work/for school/at parties/to go out. I like to wear

80. ## Mathematics

What is 3 divided by -1/2?

81. ## Taylor

To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 12.6 g, and its initial temperature is -10.4 °C. The water resulting from the melted ice reaches the temperature of your skin, 28.1 °C. How much

82. ## chemistry

The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, and the specific heat of water is 4.184 J/deg/g. How many grams of ice at 0 ° could be converted to steam at 100 °C by 9,946 Joules of heat?

83. ## statistics

Use the given information to find the minimum sample size required to estimate an unknown population mean u. How many adults must be randomly selected to estimate the mean FICO (credit rating)score of working adults in a country? We want 95% confidence

84. ## college letter edit

can someone help edit this? I literally need this in by tonight Dear Admissions, As I was recently speaking with an admissions officer from Uconn, I was exponentially pleased to be informed that the University of Connecticut has allowed for the submition

85. ## Math

If a boat travels at 5 miles per hour, how many feet per second does it travel? Round your answer to two decimal places if necessary. 26400 feet per second

86. ## Calculus

What would the derivative of c(x) = (10 - x) + 1.4*sqrt((x^2) + 25)

87. ## writing

what is diction ?

88. ## Chemistry

Thank you for your rich explanation,but..... I don't get how "In this case both reactions are exothermic and the total is exothermic BUT both could be positive, both negative, or one each to give a final equation that is either + or - (or zero) however it

89. ## CHEMISTRY

Calculate the volume in liters required to prepare a 5.00M solution of HCL using 15.4gof HCL.

90. ## college essay conclusion edit

can someone edit this. also, does it sound too melodramatic? And so, dear reader, I am no longer a child. I was unable to maintain my simplest and purest form, as the fragile innocence of my childhood has been taken. I am like an old book, torn and

91. ## College and Math Courses

Is statistic 243 equivalent to AP Statistic?

92. ## College and Social studies Courses

Is Economic 201 or 202 equivalent to AP Microeconomic or AP Macroeconomic?

93. ## internet basics

a space on a server where users can interact with one another as if in a physical room is called a a.chat room b.newsgroup c.blog d.mailing list my answer is a

94. ## interenet basics

real player,flash player ,and shockwave are examples of a.plug ins b.domains c.protocols d.isp's my answer is a

A planet A of mass m is in a circular orbit of radius "a" around a star ( M_star >> m ). Another planet B with the same mass m is in an elliptical orbit around the same star with its length of the semi-major axis equal to "a" . We have just learned that,

96. ## internet basics

an online journal or diary you create to share thoughts,opinions and personal news is referred to as a/an a.chat room b.newsgroup c.e-mail list d.blog my answer is d

97. ## interenet basics

in the language of the world wide web this page cannot be displayed means a.your computer s software is damaged b.the browswe cant find the web site you are seeking c.the e-mail youre trying to open has been lost d.the isp you've chosen is going to go out

98. ## physics

The angular momentum of a planet is conserved if taken with respect to: a)The center of the ellipse b) The focus of the ellipse at the sun c)The focus of the ellipse opposite the sun d)Both foci of the ellipse

99. ## internet basics

the software program you need to have to read pdf file ,such as the pdf files you download from your my course page is a.shock wave b.adobe reader c.applet d.flash my answer is b

100. ## Math

Convert each of the following. Round your answer to two decimal places if necessary. 0.68 miles = 43084.80 inches 10259 feet = 3419 yards

101. ## iinternet basics

firefow,chrome,opera,and safari are examples of a.browsers b.applets c.malware d.plug ins my answer a

102. ## Algebra

Can logarithms have negative answers?

103. ## Physics

A 1000N crate is being pushed across a level floor at a constant speed by a force F of 300N at an angle of 20.0 degrees. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 300-N force is instead pulling the block at

104. ## Trig

2 vectors act on a bolt. vector 1(1200/70 degrees) vector 2(900/205 degrees) then E = ? must show work!

105. ## Precalculus

I know I posted this but I have some questions.. So is the general solution: theta= +/- 222+360k Then is it legal to .... -222+360(1)???? 222+360(0)=222(just like your answer) How come there is only one answer????

106. ## SCIENCE / ROCKS

what are rocks made up of ?

107. ## Trigonometry

A box is on a 10 degree incline with 180 pounds of force against the box. What is the weight of the box?

108. ## internet bacis

a web site created the maui services has a url of pro which of the following types of organizations is maui services a.for profit organization b.licensed professionals c.non profit organization d.professional association my answer is b

109. ## Chemistry

Dr.Bob, this is regarding to the enthalpy posts.... I don't understand why you just switch it to negative??How do you know that it is neg???? I thought it started out neg though the problem does not give the number.... I am sorry,but I am a very slow

110. ## Statistics

To do inferential procedures comparing two proportions, we need another variance formula (our ruler). This formula is based on what principle? A) The variance of the difference of two statistics is the difference of the variances of each statistic. B) The

111. ## Trigonometry

a 100 pound box hangs between two ropes T1 and T2 the angle at the top of T1 is 28 degrees and the angle at the top of T2 is 35 degrees. what does T1 and T2 equal? Must show work

112. ## Statistics

A survey was conducted to determine if there is a difference in gasoline mileage for two types of trucks, truck A and truck B. A random sample was taken for each model of truck, and the mean gasoline mileage, in miles per gallon, was calculated. Identify

113. ## science / rocks

what step in the rock cycle creates the sediment from which sedimentary rocks form I think its erosion please see if im right or not

114. ## Trig

Plane leaves airport with heading of 110 degrees at 300 mph, the wing out of the southwest is 42 mph. locate the plane after 4 hours? find the distance back to airport and angle from due east?

115. ## history

Why did the English establish colonies in the Americas?

116. ## science

What is the otter's acceleration if it increases its speed 3 m/s each second for 4 seconds

117. ## Chemistry

How much energy would be needed to turn 183.7 g of Ice at -27 degrees celcius to steam at 135 degrees celcius?

118. ## english

is it possible to find evidence that could ever disprove a conspiracy theory? why/why not?

119. ## Math

I don't even know where to start with this. -_- As A and B range over all ordered pairs of distinct coprime positive integers, how many different possibilities are there for: gcd((A+B)^12, (A-B)^61)

120. ## history

Why did the English establish colonies in the Americas?

121. ## Math

Suppose an urn contains 8 red,5 white and 7 blue marbles.a.If 3 marbles are drawn at random from the urn with replacement,what is the probability that three marbles are red?

122. ## Electricity help needed please

Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the power delivered to wire A to the power

123. ## Math

Choose True or False for each of the following. 87% is equivalent to 0.87 True or False 1.29 is equivalent to 129% True or False 0.5% is equivalent t0 0.05 True or False 5.6 is equivalent to 56% True or False

124. ## Social Studies

Why were the Native Americans so important in the clash between the French and British? Explain which side, French or British, received the best advantage with the Native Americans. Provide evidence supporting your reason for selecting that side.

125. ## Chemistry

Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1139 K. Assume the pre-exponential factor is one.

126. ## Chemistry

The Young's modulus for a material is 8.0 x 1010 N/m2. The material is stretched to a strain of 2.0 x 10-3. How much elastic energy will be expended? (Express your answer in J/m3)

127. ## English

1. Outside the village, Naki is sitting on the ground. 2. Outside the village Naki is sitting on the ground. 3. Outside the village is Naki sitting on the ground. 4. Outside the village, she is sitting on the ground. 5. Outside the village she is sitting

128. ## math

A couple plans to save for their child’s college education. What principal must be deposited by the parents when their child is born in order to have \$100,000 when the child reaches age 18? Assume the money earns 4% interest, compounded quarterly.

129. ## math

A committee of 12 students must select from their group a president, a vice-president, and a secretary. In how many possible ways can this be accomplished?

130. ## math

using the laws of exponents simplify (25)^3 so (5x5)^3 (5^2)^3 so I got 5^6 Is this correct?

131. ## physics

A planet A of mass m is in a circular orbit of radius "a" around a star ( M_star >> m ). Another planet B with the same mass m is in an elliptical orbit around the same star with its length of the semi-major axis equal to "a" . We have just learned that,

132. ## Math

Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%? Some people tell me approx. 500% and 405% Which is it and how do you do the math for the correct answer?

133. ## math

On checking with 100 families, it was found that 25 families subscribe to Time, 30 to Newsweek, and 65 to neither magazine. How many subscribe to both?

134. ## Pre-Calc

A wrecking ball attached to a crane swings back and forth. The distance that the ball moves to the left and right of its resting position with respect to time is represented by the following graph.

135. ## Social Science

I have to conduct a project that will be time consuming and costly and I need to justify to my principal investigator why he should approve the funding for this project.

136. ## English

Then in 1996, Nokia introduced the a PDA with full mobile phone functionality, the 9000 Communicator, which became the world's best-selling PDA. (Is 'the a PDA' correct?)

137. ## Geometry

If ST = y + 2, RT = 5y – 10 and RS = 2y, then find the value of y and all three lengths. If RS = 4x, Line RS approximately equal to line ST and RT = 24, then find the value of x.

138. ## English

1. He went up. 2. Up he went. 3. Up went he. 4. The princess went up. 5. Up the princess went. 6. Up went the princess. (Which ones are grammatically correct?)

139. ## Math

need a answer mary hD 9 yards of ribbon to make bows for each of her 12 dolls. if mary wanted all the ribbons to be the same length , how long would each ribbon be

140. ## nature of science

which of the following would increase friction. A.Soap B.water C. sand

141. ## nature of science

Two objects or 5kg to 10kg respectively and they're 10m apart. If the distance between them is increased to 20m, what happens to the gravitational force? A. it decreases B. it is doubled C. it increases slightly

142. ## nature of science

which of the following best explains velocity? A.the speed & direction of an object in motion C.only the change of direction of an object in motion D.the direction of an object in motion