# Questions Asked onMay 10, 2010

1. ## Calculus

How many critical points does the function f(x) = [(x-2)^5][(x+3)^4] have? A. 1 B. 2 C. 3 D. 5 E. 9 --- Ok, these are my thoughts on this question: My impulse was to do derivative of the function. However, if I'm going to set the function equal to zero to

2. ## chemistry

How much heat is evolved when 1258 g of water condenses to a liquid at 100.°C?

3. ## CHEMISTRY!!/science

A mixture of CO2 and an unknown gas was allowed to effuse from a container. The carbon dioxide took 1.25 times longer than the unknown gas to escape.Which of the following gases could the unknown one be Choices A: Cl2 B: CO C: HCl D: H2 E: SO2 I am going B

4. ## chemistry

The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the soution.

5. ## statistics

Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. (0.1 point) If you have a body temperature of 99.00 °F,

6. ## chemistry

A 0.010 M solution of a weak monoprotic acid is 3.0% dissociated. What is the equilibrium constant, Ka, for this acid?

7. ## Physics

An archer applies an average force of 200 N to draw the bow string back 1.3 m. a)How much work did the archer do on the string? b)How much mechanical potential energy is stored in the stretched bow? c)How much kinetic energy does the arrow have before it

8. ## math

if two dice are rolled 360 times, approximately how many times should you expect a sum of 7

9. ## CHEMISTRY!!

Which of the following is NOT a postulate of the kinetic molecular theory? A; the average kinetic energy of the particles is directly proportional to the absolute temp. B;the forces of attraction and repulsion between the particles are insignificant C:the

10. ## Chemistry

What is the equilibrium constant for the reaction: HCOOH(aq)+ OH (aq) HCOO(aq)+ H2O(l) Ka= 1.7 * 10^-4 Kb for the conjugate base= 4.9 * 10^-11 Thank you!

11. ## quimistry

How many grams of chromium are needed to react with an excess of CuSo4 tp produce 27 g Cu?

12. ## CHEMISTRY

Ammonia and gaseious hydrogen chloride combine to form ammonium chloride. NH3(g) + HCl(g) = NH4Cl(s) (balanced) If 4.21 L of NH3(g) at 27 C and 1.02 atm is combined with 5.35 L of HCl at 26 C and 0.998 atm, what mass of NH4Cl will be produced? Which gas is

13. ## statistics

Using the 68-95-99.7rule. Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentage of scores less than 100 b. relative frequency of

14. ## chemistry

A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 23.0°C. What was the final temperature?

15. ## biology

a) Explain why the knee-jerk reflex still functions in a person with a severed spinal cord. b) Why is there no sensation of the stimulus?

16. ## Accounting

Physicians practicing in Eastern University’s hospital have the following compensation agreement. Each doctor bills the patient (or Blue Cross Blue Shield) for his or her services. The doctor pays for all direct expenses incurred in the clinic, including

17. ## Marketing

9. The annual planning at Century Office Systems, Inc. had been arduous but produced a number of important marketing initiatives for the next year. Most notably, company executives had decided to restructure its product-marketing team into two separate

18. ## Chemisrty

Calculate the moles of aluminum ions present in 250.0 g aluminum oxide

19. ## Data Management

A lottery has one \$1000000 prize, two \$50000 prizes, ten \$1000 prizes, and two hundred \$50 prizes. There are to be one milllion tickets sold. How much pofit does the lotto company make if they sell the tickets for \$2.00 each?

20. ## CHEMISTRY!!

Can someone check my answer please: Magnesium metal(0.100 mol)and a volume of aqueous HCL that contains 0.500 mol are combined to react to completion. how many litres of hydrogen gas (measured at STP) are produced choices: 4.42 11.1 22.7 2.27 5.53 I like

21. ## World History

What weaknesses made the League of Nations an ineffective force for peace in the 1920s and 1930s?

22. ## World History

how did the scientific and technological revolutions of the 1920s help set the stage for transportation in the United States today?

23. ## Chemistry

What is the net ionic equation for the ionization of HClO3 in water?

24. ## algebra

How many sets are subsets of set B? List the subsets of set B. Which are proper subsets? B= {1,2,3,4,5} would it be 5 subsets (1 for each number? the subsets would be 1,2,3,4,5 not sure about a proper subset

25. ## Grammar

Jesus Christ died to save the world. Are the verbs died and save because it shows the actions that he did or just one of them?

26. ## Greatest Common factors

I don't know these answers. Can you help me? Greatest common factor in 1.6y^2-9y+18. 2.4x^2y-7xy 3. 30a^3b-40ab^3 4. factor out greatest common factor in 4x^2-12x+20 5. x^4y-6x^3y-6x^2y 4 and 5 are factoring out the greatest common and 1-4 is finding the

27. ## English

i need a palindrome for: old cats who are forgetful (2 words), a hippie with no name would say ( 3 words), Bright male goats ( 2 words) and Shiny rodents ( 2 words)

28. ## Physics

How many excess electrons does an object with a total charge of -1.0 x 10exp-9C have on it? This is approximately the amount of charge involved in commonly encountered static electricity.

29. ## chemistry

Can you please check if I came up with the right answer for this please. A 4.30L container had 55.10 moles of N2O4 added to it. When equilibrium was established the concentration of N2O4 was found to be 1.69M.What is the Kc for the following reaction?

30. ## Physics

How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.

31. ## Intermediate Algebra

How would I figure out this math problem? (a video game was \$49.95. The price dropped to \$45.50. what was the percent of decrease.)

32. ## Chemistry

Calculate the moles of aluminum ions present in 250.0 g aluminum oxide

33. ## statistics

Bellevue Hospital in New York City uses 100.6 °F as the lowest temperature considered to indicate a fever. a. (0.1 point) What percentage of normal and healthy adults would be considered to have a fever? : b. (0.1 point) Does this percentage suggest that

34. ## investing

Discount Sales sells some used store fixtures. The acquisition cost of the fixtures is \$12,500, the accumulated depreciation on these fixtures is \$9,750 at the time of sale. The fixtures are sold for \$4,500. The value of this transaction in the Investing

35. ## Social Studies

I'm doing an ABC book for Medieval words, and I need to do one for the letter Z. I found the word Zupan, but I'm not entirely sure on the definition, and how I can illustrate it. So can anyone give me some help on the word Zupan, or suggest any other

36. ## history

the political system in which the citizens are likely to have the most immediate influence on their government is a? 1)direct democracy 2)representative democracy 3)aristocracy 4)constitutional monarchy 5)dictatorship

37. ## Data Management Probability

A toy manufacturing company that 5% of there toys are defective. A quality control person checks 50 toys. a) What is the probability that there will be exactly two defective toys found? b) How many defective toys would quality control expect to find?

38. ## physics

The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

39. ## Algebra

Write the expression 3X^12+20X^6+6 in quadratic form.???

40. ## Grammar

Adam and eve lived in the garden of Eden. What are the verbs in this phrase.

41. ## chemistry

The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the solution.

42. ## algebra

What is the volume of a box whose length is 12-2x, width is 7-2x, and height is x. l*w*=height 12*7=84 2x=84 x=42 Is this right, check for me please

43. ## Math

A rectangle is 3 times as long as it is wide and has the same perimeter as a square whose are is 4 sp.ft. larger than that of the rectangle. What are the dimensions of both the rectangle and the square?

44. ## Physics

calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm

45. ## math

A polyhedron has 15 vertices and 31 edges. How many faces does it have?

46. ## statistics

A usu today survey foudn that of the gun owners surveyed 275 favor sticter gun laws. The survey involved 500 gun owners. Test the claim that a mojority( more than 50%) of gun owners favor stricter fun laws. use .05 significane level

47. ## science

compare and contrast a latent virus and an active virus. Give an example of each.

48. ## geography

Germany and France are located next to eachother. What geographic advantages do they have in common that would help their economies prosper? what geographic features might create differences in their economies?

49. ## science

For the following reaction if the reaction temperature was increased would the equilibrium shift to the right or the left,not shift at all,or you cant answer the question because Keq is not given? 2SO3(g)2SO2(g)+O2(g)..(deltaH degrees =198kj) Why???

50. ## Chemistry

A steel container of oxygen has a volume of 20.0 L at 22 C @35 atm. What is the volume @ STP? How many mol of oxygen are in the container?

51. ## statistics

Which of the following statements are correct? a. a normal distribution is any distribution that is not unusual b. the graph of a normal distribution is bell-shaped c. if a population has a normal distribution, the mean and the median are not equal d. the

52. ## Physics

Calculate how far and apart two indentical charges of 1.0 C must be in order for the Coulomb force between them be less than 500 N

53. ## math

thirty-sit people are registered for an evening class. if twice as many men as women are registered for the class, how many men are registered? 1)24 2)18 3)12 4)6 5)not enought information

54. ## Math

What is 4.85 divided by 5

55. ## CHEMISTRY

At what temperature does a 16.3 g of nitrogen gas have a pressure of 1.25 atm in a 25.0-L tank? Plz show me step by step how to do this, with using pressure as atm.

56. ## Geometry

Please Someone Help!!! Find the coordinates of a point on the unit circle corresponding to a 36 degree angle rotation. Find the coordinates of a point on the unit circle corresponding to a 115 degree angle of rotation. Find all angles between 0 degrees and

57. ## math

a fence post a 4-foot shadow at the same time that a tree next to it cast a 64-foot shadow. how tall os the tree? a)66 b)70 c)74 d)78 e)not enought information is given

58. ## math

an appliance salesman receives a commission of 15% of all sales. last week he sold a refrigerator priced at \$755,a dishwasher priced at \$450, and a range priced at \$535. what is the total commission he earned for the week? 1)\$26.10 2)\$104.40 3)\$116.00

59. ## geology

What are the major differences between topographic and geologic maps? • Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is

60. ## math

A total of 129 players entered a single elimination handball tournament. In the first round of play, the top seeded player received a bye and the remaining 128 players played in 64 matches. Thus 65 players entered the second round of play. How many matches

61. ## physics

The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

62. ## math

a triangle has three internal angles. one angle measures 37 degrees another one measures 67 degrees. how many degrees does the third angle measure? 1) 28 2) 34 3) 76 4) 256 5) not anought information is given

63. ## math

if patrick can paint a wall in 40 minutes, what part of it can he paint in 1/2 hour? 1/4 1/2 2/3 3/4 4/5

64. ## Algebra

3x^4-31x^2+28=0 Solve the equation??

65. ## CHEMISTRY

Dr Bob Can you confirm please Given a cylinder of fixed volume filled with one mole of Ar gas,which of the following is CORRECT? (assume that all gases obey the ideal gas laws) A: if the cylinder temp. is changed from 20 to 25 deg.C the pressure will

66. ## language arts

unscamble the letter to find the name of a mall trrlnematitanaaon

1(a)Let Y have a binomial distribution with parameters n and p. We reject Ho: p=1/2 and accept H1: p>1/2 if Y>=c. Find n and c such that the probability of a Type I error is .10, and P(reject Ho/p=2/3)=.95. (b)What is the probability of a Type II error?

68. ## statistics

Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. (0.1 point)

69. ## Math

A manufacturer produces certain devices. The fixed cost of production is \$2000. The first unit produced cost \$2 and the cost per unit increases by 20 cents or each additional unit produced. What is the total cost C of producing x units?

70. ## Statistics

A population has a mean of 200 and standard deviation of 50 and simple random sample size of 100 and x is used to estimate u. What is the probility that the sample mean will be within plus or minue 5 of the population mean?

71. ## science/chemistry

Qc for the following chemical reaction 3CIO2-(aq)2CIO3-(aq)+Cl-(aq) Choices A:3[CIO2-]/2[CIO3-][Cl} B:2[CIO3-][Cl]/3[CIO2-] C:[CIO2-]^3/[CIO3-]^2[Cl-] D:[CIO3-]^2[Cl-]/[CIO2-]^3 I like B: what would you go for?? thanks all

72. ## Chemistry

What is the molar mass of a solute if 62 g of the solute in 125 g of water produce a 5.3 molal solution?

73. ## chemistry

How much heat is evolved when 269 g of ammonia gas condenses to a liquid at its boiling point?

74. ## chemistry

How much heat is evolved when 269 g of ammonia gas condenses to a liquid at its boiling point?

75. ## english

Do your homework before applying for any job. if you rewrote the sentence beginning with (Be sure that you) the next words would be? 1)got done your homework 2)got your homework done 3)had done your homework 4)did your homework 5)have done your homework

76. ## math

use the method of Gauss to find the sum. 2+4+6+...+300 is it 300(300+2)/2 = 45300

77. ## chemistry

when you hold a hydrogen filled pipet bulb horizontally with its mouth about 1 cm from a falme while gently squeezing what would you observe? a. the flame goes out b. a gentle pop and the flame may have been blown out c. the flame got bigger d. nothing

78. ## LIB

Which of the following areas is covered by a treaty prohibiting nuclear arms being deployed there?

79. ## Physics

(a) calculate the energy in joules put out by a 9.0 V calculator battery that moves 3.0 C of charge through a handheld calculator after 1 hr of operation. (b) calculate the energy put out by a 12.0 V car battery that moves 1000 C of charge (as it may when

80. ## math

together two designers have to make 31 dresses in a month. janet has to sew 5 more dresses than her partner, chris. how many dresses does janet have to make? 13 18 23 26 36

81. ## math

a newborn infant usually tripples its birthday weight by its first birthday. baby carter weighed 28 pounds on his first birthday. if this were tripple his birth weight (b), which equation below could be used to determine his birth weight? 1)b/3=28 2)b-3=28

82. ## history

the army overthrows the civilian government in the nations capital. the chief of the army staff takes control of national policy-making suspending the free press and the elected assembly. the type of political system now in control is a? 1)direct democracy

83. ## English

Can you check if everything is OK? Thank you very much for your invaluable help. 1) You mustn't bully your friends. 2) You mustn't disturb the lesson. 3) You must forge your parent's signature in your school report. 4) Are you going to be tested in history

84. ## science- chemistry

what is the rate of reaction, if rate of consumption of iodide is 2.130x10^-5? 5I-(aq)+IO3-(aq)+6H+(aq) 3I2(aq)+3H2O(l)

85. ## English-plese hepl

I am reliable dishwasher seeking for a position of dishwasher where I can use my previous dishwashing experience for a leading restaurant. Is correct sentense??

86. ## accounting

Cash Management Matrix For each principle in the matrix,describe how the principle ensures the reliability of a company's financial statements and provide at least one example of how the principle might work in a real company. Principles of Internal

87. ## physical science

which of the following properties of light support the wave theory; existence of photons, can be reflected, can be refracted?

88. ## chemistry

when I bubbled Alka selzer into limewater I believe all I saw was small bubbles form. is that correct and why? if not what should I have observed.

89. ## Chemistry

What mass of Zn will be dissolved in 10 mL pH=2 HCl solution? Zn + 2HCl--> ZnCl2 + H2

90. ## chemistry

what is observeed when carbon dioxide was bubbled into bromothymol blue? a. the color of the solution changed from greenish to yellow color. b. the solution turned cloudy c. the color of the solution changed from yellow to colorless d. a precipitate formed

91. ## Algebra

I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

92. ## English

Can you please tell me which is the best choice? I really hope you can have a look at it today. Thanks a lot! 1) He's going to take his car to a mechanic ( or mechanic's?) 2)How are the different pilgrims presented and what are the main themes covered in

93. ## Alegebra

0.000042/0.0084=2 Scientific notation. DIvide. My answer is 2 is this right.

94. ## science/chemistry

The van der waals equation incorperates corrections for the ideal gas laws in order to account for the properties of real gases. one of the corrections accounts for 1:The kinetic energy being inversly proportional to the temperature 2:The possibility of

95. ## chemistry

Write the equilibrium expression Qc for the following: 3CIO2-(aq)2CIO3-(aq)+Cl-(aq) Choices: 3[CIO2-]/2[CIO3-][Cl-] 2[CIO3-][Cl-]/3[CIO2-] [CIO2-]^3/[CIO3-]^2[Cl-] [CIO3-]^2[Cl-]/[CIO2-]^3 I don't even know where to start with this one can you help please.

96. ## statistics

A survey was mailed to a total of 400 students; 100 were randomly selected from each of the freshman, sophomore, junior and senior classes last semester. What sampling method was used?

97. ## chem

what is the Ka for a 0.1994M propionic acid solution if pH is 2.795? CH3CH2CO2H(aq)+H2O(l)CH3CH2CO2-(aq)+H3O(aq) someone please help.. I have a final in two days.

98. ## chemistry

when a 0.4-g almond sample is burned the heat gained by the water is 7525.4 J and the temperature of the water increased from 24 C to 58 C what was the mass of the water in grams? a. 50 b. 100 c. 45 d. 52.9

99. ## chem

A steel container of oxygen has a volume of 20.0 L at 22 C @35 atm. What is the volume @ STP? How many mol of oxygen are in the container?

100. ## Intro to visual business

What specific visual film techniques do you see utilized in contemporary television?

101. ## APChemistry

Thank you!!! Do catalysts affect: A, B, C, AB, AC, BC, or ABC???: where: A)activation energy B) enthalpy change (I am assuming this is delta H) C) value of the equilibrium constant thank you!!!

asked by GRATEFUL AP CHEMISTRY STUDENT
102. ## Economics

Programs aimed only at people who are poor or disabled are known as? a. social insurance programs b. governmental programs c. federally funded programs d. public assistance programs

103. ## Language arts

Life is full of choices, so i must learn to make good ones. Is the verb in this phrase just " is" or are there more

104. ## math

using a deck of cards,what is the probability that you would pull a red kind and a black queen in two pulls without replacing the first card back into the deck?

105. ## LIB

The International Atomic Energy Agency (IAEA) 1. controls nuclear weapons stockpiles. 2. inspects nuclear power plants. 3. tests nuclear weapons. 4. builds nuclear power stations. I think it's number 4

106. ## Chemistry

Hydrocyanic acid has a Ka of 4.0 X 10-10. What is the percent of ionization of a 1.0 molar solution? my answer is 0.004% is this correct? a) 0.004% b) 0.0020% c) 0.0004% d) 0.02%

107. ## Algebra

I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

108. ## chemistry

According to the experiments concerned with photoelectric effect, what would inrease the kinetic energy of electron ejected from a metal surface? Decreasing the wavelength of the light, drecreasing the frequency of the light or increasing the number of

109. ## anatomy

4. What provides the shortest-term mechanism for preventing acid-base imbalances in the body? The longest-term mechanism? Describe each in detail.

110. ## Algebra

"Do the two inequalities have the same solutions? Wriet yes or no. -5x > 0 x > 0 Solve each inequality and ch eck your solution. 9x > 81 help please? -thanks

111. ## chemistry

The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the solution.

112. ## Physics (Center of Gravity)

In a lab in my physics class, we were supposed to find the CG of my physics teacher. My partner and I had him lie flat on a wooden (assumed uniform) board that was resting on top of two PVC pipes at either end. Since the PVC pipes acted as the base of

113. ## science- chemistry

what must be the concentration of Cl- to just start precipitation of CuCl from a solution which is 4.896x10^-6M in CuNO3? Ksp = 1.9x10^-7

114. ## bus.

Is it a good idea to open American fast food restaurants in Disney parks overseas selling the same kind of food sold in U.S. parks?

115. ## Pre-cal

Please determine the following limit if they exist. If the limit doe not exist put DNE. lim 2x^3 / x^2 + 10x - 12 x->infinity. Thanks.

116. ## math

working three days per week, a clerk earns \$255 per week. at the same rate of pay, which expression below represents what she would earn if she worked 5 days per week? (let x represent full time earnings) 1)x=3/5(255) 2)x=5/3(255) 3)x=3(255) 4)x=5(255)

117. ## Trig

A swimmer heads perpendicular to a 2-miles-per-hour current. His speed in still water is 1.8 miles per hour. Find the actual speed of the swimmer and his direction angle, 0 (the zero right her is supposed to have a line through the middle of it, I think it

118. ## Trig

A swimmer heads perpendicular to a 2-miles-per-hour current. His speed in still water is 1.8 miles per hour. Find the actual speed of the swimmer and his direction angle, 0 (the zero right here is supposed to have a line through the middle of it, I think

119. ## Reimbursement Methodologies

Could someone please check my answers for me..Thanks 1. Mary needs Medicaid coverage. Where should she start looking for information to determine her eligibility? A. The local hospital social services department B. Her employer C. The federal government

120. ## science

list the steps on active virus follows when attacking a cell.

121. ## Algebra1

15m^4^5-3mn+9m^2n^3

122. ## CHEMISTRY!!

Calculate the mass in grams of 2.74L of CO gas at 33 degrees celcius and 126.0 kPa I got 3.75 grams Is this right please Thanks

123. ## APChemistry

Hi! Thnak you again! Just checking: any element of increasing atomic number after phosphorus (including Phosphorus) CAN have an expanded octet? Thank you!

asked by GRATEFUL AP CHEMISTRY STUDENT
124. ## physics

The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

125. ## Economics

Property taxes, which are calculated as a percentage of the value of a home, are an example of a. the benefits- received principle b. a regressive tax c. the ability to pay principle d. a proportional tax

126. ## accounting

Cash Management Matrix For each principle in the matrix,describe how the principle ensures the reliability of a company's financial statements and provide at least one example of how the principle might work in a real company. Principles of Internal

127. ## chemistry

DR BOB Can you check my answer at Monday may 10 2010 at 7:12 pm at Chemistry -andy(Page 2) I think I may have got it !!! Thanks andy

128. ## chemistry

How many atoms of Ag are in each of the following quantities? 1- 0.38 mole Ag2S? 2- 0.78 mole AgCl?

129. ## math

what is the sum of 3a + b + a + b? 1)3a+2b 2)4a+2b 3)a3+b2 4)4a + b 5)6ab

130. ## math

using a deck of cards,what is the probability that you would pull a red kind and a black queen in two pulls without replacing the first card back into the deck?

131. ## trig

TA and TB are two cables helping to brace a 500 ft radio tower, FT. If the angles which the cables make with the horizontal are 62 and 50 (degrees), find the distance between their anchor points

132. ## MATH

25 PERCENT AND 90 PERCENT OF 80

133. ## ETH 125

Where can I find information on African Americans being colonized? Did they face prejudice, segreation, racism, or any combination of the three. If so where can I find why and how?

134. ## Math

Use the method of Gauss to find the sum. 2+4+6+...+300 is it 300(300+2)/2 = 45300

135. ## chemistry

when you insert a glowing wooden toothpick into a oxygen-filled pipet what would you observe? a. nothing b. the glow of the toothpick went completely out c. heard a gentle pop d. the glow of the toothpick got brighter and may have reignited. again Im

136. ## chemistry

Calculate how many L of 21M HCL must be added to make 1L to .1M HCL.

137. ## APChemistry

Thank you very much~ When you do the VSEPR changes for an octahedral, do you first remove the electrons from the poles, or from the equator?

asked by GRATEFUL AP CHEMISTRY STUDENT
138. ## geography

I have to put indicators of measuring development in countries in order of importance they are :- literacy rates number of people per doctor, gross national product, % of population access to clean water, population density, % people employed in

139. ## Micro economics

1. prove mathematically that MC does not depend on TFC 2. if the average cost of producing 8 units of output in \$80 and that of prodcuing 9 units of output is \$90, find the marginal cost of the 9th unit of output and the total cost of the last unit

140. ## English

What are some good key quotes (about 6-8) for Reverend Hale in The Crucible?

141. ## Math Linear functions

How do I solve for (9,-1) and (6,-2)

142. ## chemistry

The temperature of a sample of water increases from 20.7°C to 45.7°C as it absorbs 5675 J of heat. What is the mass of the sample?

143. ## precal

Evaluate tan B tan C if triangle ABC is not a right trianlge and cos A=cosB cosC.

144. ## math

Explain in your own words why the line x = -8 is a vertical line.

145. ## calculus

to the nearest metre x=24m and y=6m. Calculate the upper bound for the value of xy

146. ## trig

A sinusoid (sine curve) rises from a minimum value of y=-8 at x=0 to a maximum value of y=40 at x=50. Write a sine function for this curve

147. ## Time

How to convert mins into hrs like convert 7hrs 30 mins to hrs?

148. ## physical science

which substance is a base in this equation, Ba(OH)2 + 2 HNO3

149. ## college

Incorporating Statistics, Graphs,and Illustration Assignment My topic is about drugs

150. ## calculus I

I posted the wrong problem an hour ago. What is the integration of √(cotx)/sinx dx by using substitution? I don't think it's solvable.

151. ## health international

What are the economics in India(poverty level), Demographic( includes social indicators) and health includes mortality Learn what they mean

152. ## college

i need math help please. on a math problem

153. ## Geography

What are the Four Modernizations of china?

154. ## physical science

inside the cylinders of a diesel engine, what helps to ignite the fuel and air?

155. ## LAL!

in this sentence is the verb MAY FIND or FIND You may find the Sargasso Sea.

156. ## Alegebra

What is the volume of a box whose length is 12-2x, width is 7-2x and height is x? L*W=height Can someone help me with this problem please

157. ## pre calculus

How do you simplify cos ((pi)/2) - feta?

158. ## APChemistry

Thank you very much How do you know that the geometries of the following polyatomics ( SO4 2- , PO4 3- and ClO4 1-) are TETRAHEDRAL? Thank you!!!

asked by GRATEFUL AP CHEMISTRY STUDENT
159. ## Algebra 2.

16x^4+8x^3+17x^2+8x+1 I have tried it but i keep getting the wrong roots can someone solve this?

160. ## english

Did you know that Paul Revere rode through the countryside calling men to arms class? where does the comma belong? how can i rewrite this sentence with a comma?

161. ## Parenthetical Reference

Whish one would be CORRECT: " quote " (Bryan). OR " quote " (UCLA). This is the website (the speech is by a person named William Bryan). UCLA Center for East Asian Studies. Resource page. UCLA International Institute. XX Feb. 2010 (website)

162. ## math

to make 5 sets of curtains when eachset requires 2 1/3 yards how many of material are needed?

163. ## ETH 125

how does glass walls glass ceilings or glass escalator effect native Americans?

164. ## resume (education)

I have to make a resume and my teacher wants us to include any professional memberships. Does honor society (in college) count? If not, please include some examples of professional memberships. Thank you!

165. ## science

why is it a good thing when spores grow on the underside of the frond?????

How would you balance Na2O plus HOH

167. ## math

speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of \$15 + 5cents/ min.2nd,a monthly charge of \$5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge.

168. ## History

Where can i find info on china and japan during 18th to 19th century.

169. ## science

explain how vaccines prevent infection

170. ## chemistry

if you burned a marshmallow with a net mass of 0.8g and you heated 49.1 g of water from an initial temperature of 24C to a final temperature of 28C what is the heat energy per gram of marshmallow? (express your answer in J/g) a. 822 J/g b. 1027 J/g c.

2. Individual Assignment: Widget Production â€¢ Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management

172. ## algebra

ã200 + ã70 + ã300 =

173. ## Algebra (repost)

Can you help me on this problem as well? (or anyone.) Solve each inequality and check your solution. h - > -7 4 (bumping)

174. ## science

Dr bob, can you check my reply to chem question from andy thanx

175. ## language arts

in this sentence what is the contrast " Water like fat raindrops that fall from skinny trees "

176. ## Calculus

How do I find the integration of √(cot) / sin^2(x) by using substitution?

177. ## ETH 125

I am writing an essay on African American people I need to tell if they are colonized or immigrated? Can someone help me.Where could I find information on this?

Explain words that modifies

179. ## Trig

Nathan and Julia are walking along lines that form a 38 degree angle. If Nathan walks at 3.6 miles per hour and Julia walks at 4.1 miles per hour, how far apart will they be after 2 hours?

180. ## geometry

the slope of a line that is perpendicular to (2,4) and (-1,0) is

181. ## geometry

4/7 of a 49 degree angle

182. ## accounting

pg76 excercises 2-4 and 2-5

183. ## English

I just wanted to say thanks guys for all your help in my English class I really enjoy working with Jiskha

184. ## SQL

Due today Submit a text file (extension .txt). 1- Write a statement that creates a table named Part, with an Id field as an int idendity PK, a SupplierId int field, a Description string field of size 25, a Count int field, a Class string field of size 5,

185. ## social studies

I NEED HELP FOR QUOTATION MARK

186. ## psychology

many of the chemicals that affect the brain operate by

To bring to your organization enthusiasm, dedication, responsibility, and good work ethic, combined with a desire to utilize my skills obtained through work experience. Is that correct sentense??

Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management for Taylor Inc. would also like you to suggest

189. ## science- chemistry

What is the concentration of Ag+ in 0.0543M AgNO3 and 1.1657CN-? Ag+ +2CN- [Ag(CN)sub2]- kf = 5.3x10^18

190. ## Chemistry 212

the half life of F18 is 2.089x10^-4yrs. How long would it take (in days) for F18 to decrease to 78.71% of its initial amount?

191. ## Social Studies

Explain the use and development of transportation and communication systems in regions of Canada.

192. ## criminal justice

Does this media viewpoint accurately protray these professionals.

193. ## science

infer how some viruses might be helpful.

194. ## science

hello! i was wondering if anyone knows when dinosaurs evolved.

Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management for Taylor Inc. would also like you to suggest

196. ## algebra

(np^2)-3

what's "n to the 10th is 27" in a algebraic expression?

198. ## Human services

what are the pros and cons of placing children of color in a causian home?

y X 8 = 72

200. ## math

what was the population of the world in 1500 in billions if it is 0.5

201. ## chemistry

how to write a mass blanc of cacl2