# Questions Asked onMay 9, 2010

1. ## Chemistry

Hello, I have a question that reads: Using the average molarity of your initial acetic acid solutions, the initial volumes, and the volume of NaOH added to reach the equivalence point, calculate the [C2H3O2-] concentration at the equivalence point. You

2. ## math

A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?

3. ## CHEMISTRY

The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 °C to 37 °C? a. 2.0 b. -0.13 c. 0.13 d. 29

4. ## chemistry

For the equilibrium H2(g)+CO2(g)H2O(g)+CO(g) Kc=3.18 at 1106 K.If each of the four species was initially present at a concentration of 3.000M,Calculate the equilibrium concentration of the CO (g) at this temperature. Choices 0.844 3.268 3.844 3.460 2.156

5. ## Chem

what is the oxidation number on each of these ions - Ag2S + 2Al - 6Ag + Al2S3 Can you show your work? Thanks a bunch:)

6. ## algebra

Three pieces of wood are needed for project. They are to be cut from a 90cm long piece of wood. The longest piece is to be 3 times as long as the middle sized piece and the shortest piece is to be 10 cm shorter than the middle sized piece. Can this be done

The compound eyes of bees and other insects are highly sensitive to light in the ultraviolet portion of the spectrum, specifically light with wavelengths between 300.0 nm and 400.0 nm. To what frequencies do these wavelengths correspond? (Assume that the

8. ## History: Mayan

What was the Mayan name for the Jaguar God of the Underworld? Could you also please type the website where you found it? I only found that !@#\$%^& Hau was the God of the Underworld. I don't know if it was a Jaguar God.

9. ## Vectors

A mass of 15kg is supsended by 2 cords from a ceiling. the cords have lenghts of 15cm and 20cm, and the distance between the points wheere they are attached on the ceiling ia 25cm. determine the tension in each of the 2 cords. can someone please tell me

10. ## algebra

Suppose that \$4000 is invested at an interest rate of 5.5% per year, compounded continuously. What is the balance after 8 years?

11. ## chemistry

is the burning of a marshmallow a(n) endothermic or exothermic process?

12. ## calculus

find the slope of the tangent line to the curve (sqrt 2x+4y) + (sqrt 4xy) = 9.16 at the point (1,5) dy/dx method implicit differantiation?

13. ## Calculus

Find the volume of the solid formed by rotating the region enclosed by y=e^(5x)+(3), y=0, x=0, x=0.8 about the x-axis.

14. ## college

A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling and has an elastic potential energy of 1.8 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by a 5.0 kg block?

15. ## Chemistry 212

What is the solubility of RaSO4 in 0.1381M Na2SO4? Ksp = 4.3x10^-11?

16. ## Chemistry

In cool weather, the number of chirps per minute from crickets diminishes. How can this be explained in terms of rates of reaction? I'm thinking this is because reactions occur faster in warmer weather than in colder weather but i'm not sure if this

17. ## algebra

At the first tri-city meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council consisting of 5 people is randomly selected, find the probability that 3 are from town A and 2 are from town B. I know this is a

18. ## physics

The brightest light detected from the star Antares has a wavelength of about 103 nm. What is the frequency of this light?

19. ## CHEMISTRY

The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 °C to 37 °C? a. 2.0 b. -0.13 c. 0.13 d. 29

20. ## American Lit

Compare and Contrast the characters Natty Bumppo in The Prairie and John in Hospital Sketches.

21. ## CHEMISTRY

The major component of vinegar is acetic acid CH3COOH. Which of the following reactions represents the balanced equation between acetic acid and sodium bicarbonate? a. CH3COOH(aq) + NaHCO3 a CH3COONa(aq) + CO2(g) + H2O(I) b. CH3COOH(aq) + 2 NaHCO3(aq) +

22. ## trig

if tan(2x+18)degrees = cot(4x-12)degrees

23. ## Math

I am a fraction equivalent to 45/60. If you were to multiply my denominator by my numerator the product would be 192. What fraction am I?

24. ## physics

A 64.9 kg skier coasts up a snow-covered hill that makes an angle of 25.4° with the horizontal. The initial speed of the skier is 8.67 m/s. After coasting a distance of 1.92 m up the slope, the speed of the skier is 4.33 m/s. Calculate the work done by

25. ## chemistry

for the equilibrium H2+CO2H2O+CO Kc=3.18 at 1106K. if each of the four species was initially present at 3.000M calculate the equilibrium concentration of the CO at this temperature..... OK I can get as far as equilibrium (final) H2O=3.000-x CO=3.000-xx

26. ## trig

If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =

27. ## geography

What makes Thailand unique among the countries of Southeast Asia? A.It is the only free-market country that does not belong to ASEAN. B.It is the only country that was not colonized by Europeans. C.It is the only socialist country that has had no ties to

28. ## Chemistry

Suppose you had a 1.00 m solution of AlCl3. Assuming complete dissociation, what is the theoretical change in the freezing point of this solution?

29. ## Social Studies (MAPS)

Given a scale of 1:24,000 A. What is the ground distance in feet represented by three inches on the map? B.What is the ground distance in meters represented by 5 cm on the map? C.How about the ground distance in kilometers represented by 5 cm on the map?

30. ## chemistry

what is the concentration of lead ions and sulfide ions in a saturated solution of lead sulfide (PbS) solution at 25 degrees celsius.

31. ## gen chem

At 2273K, equilibrium constant for the reaction 2NO(g)N2(g)+O2(g) Kc=2.4x10^3 What would be equilibrim concentration of N2, if initial concentration of NO was 0.1160M?

32. ## chemistry

what is the concentration of lead ions and sulfide ions in a saturated solution of lead sulfide (PbS) solution at 25 degrees celsius.

33. ## math

John's account of 98.50 has been delinquent for 3 months. After 90 days office charges a 2% service charge, compounded monthly that is added to future bills. What would be the amount owed after 9 months? My math is 98.50 x 0.02 = 1.97 1.97 x 12 months =

34. ## biology

how would an enzyme that destroys cytokines affect both the cell-mediated and humoral immune responses?

35. ## math

a 4" x 6" photograph needs to be enlarged to 10" x 15" to fit into an existing frame. What is the ratio of the dimensions of the original photograph to the corresponding dimensions of the enlarged photograph?

36. ## gen chem

what would Qc be if the pressure of the container decreased by a factor of 2.417 for the following reaction? 4Hcl(g)+O2(g)2Cl2(g)+2H2O(g) Kc=13.298 @ 753K

37. ## trig

Rewrite 3pi/25 in degree measure. Round to three decimal places.

38. ## language

what is a suffix? and what is prefix? the queston is " which word has a suffix but no prefix A)uncomfortable B)comfortably C)discomfort thanks for your time.

39. ## physics

A 4.92E+2 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.81E+4 J of work on the balloon in the process. At what height above the surface of the earth does the

40. ## Biology

A mutation has occurred in one chromosome of a spermatogonium. This mutation will show up in how many of the gametes produced from this cell? Choices: A. None B. Two C. All Four D. Cannot be determined I believe it is 2....If the mutation occurs in the

41. ## Unit Cells

Copper has a unit cell volume of (47.453 A^3) and a face centered unit cell. How would I go about finding the volume of atoms within the unit cell? Would you use Avogadro's # somehow?

42. ## algebra2

Two consecutive positive integers have the property that one integer times twice the other equals 612. What is the sum of these two integers?

43. ## Chemistry

Suppose 49.6 mL of 0.242 M CoCl2 solution is added to 23.8 mL of 0.361 M NiCl2 solution. Calculate the concentration, in moles per liter, of each of the ions present after mixing. Assume that the volumes are additive. I'm not sure what to do! Thank you!

44. ## Math

State whether each expression is a polynomial. If the expression is a polynomials, identify it as a monomial,a binomial, or a trinomials. 1.7a^2b+3b^2-a^2b 2.1/5y^3+y^2-9 3.6g^2h^3k Are these the right answers? 1.Yes-trinomials 2.No 3.Yes- monomials.

45. ## statistics

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

46. ## CHEMISTRY

which one of the following reactions represents the balanced chemical equation for the formation of water from hydrogen gas and oxygen gas? a. 2H(g) + O(g) a H2O(I) b. H2(g) +o(g) a H2O(I) c. 2 H2(g) + O2(g) a 2 H2O(I) d. 2 H(g) + 1/2 O2(g) a H2O(I)

47. ## college

One side of a triangle is 2 cm shorter than the base. The other side is 3 cm longer than the base. What lengths of the base will allow the perimeter to be greater than 19 cm?

48. ## physics

A jogger travels a route that has two parts. The first is a displacement A of 2.30 km due south, and the second involves a displacement B that points due east. The resultant displacement A + B has a magnitude of 3.63 km. What is the magnitude of B?

49. ## chemistry

in NaCl, Na+ does not hydrolize but in Cr(NO3)3, Cr3+ hydrolizes to give H+, so when do we know which cation hydrolizes and which doesnt

50. ## Math

If sinx=3/4, with x in quadrant II, then determine the value of sin 2x

51. ## hi

A speaker you overheard saying_was employing literate style oral language.

52. ## chemistry

Please help me and show me step by step. assume that the reactions are being performed at pressure of 1.2 atm and a temperature of 298K Calcium carbonate decomposes at a high temperature to form carbon dioxide and calcium oxide. How many grams of calcium

53. ## lag

what is a idiom? the queston is this "which sentence uses an idiom?" A)gustavo said we should go to the party. B)gustavo said we should go for it. C)gustavo said we might go with him.

54. ## physics

Three deer, A, B, and C, are grazing in a field. Deer B is located 61.1 m from deer A at an angle of 50.9° north of west. Deer C is located 78.4° north of east relative to deer A. The distance between deer B and C is 92.2 m. What is the distance between

55. ## Chemistry

Use the Henderson-Hasselbalch equation to calculate the pH of a buffer prepared by adding 10mL of acetic acid to 20mL of 0.10M sodium acetate (Ka= 1.75 x 10^5 for acetic acid). Please showing working out, as am confused as to how to approach this question.

56. ## language

what is a compound? the queston is which word is a compound word? A)blackbrid B)blackness C)blacker

57. ## math

An advertisement states that 8 thermometers cost 12.42 minus a 3% disc. Dr. wants to order a dozen to take advantage of the savings sales tax is 5%. What would the cost be? I divided 8 into 12.42 wich gives you 1.55 per thermometer 1.55 x 12 thermometers =

58. ## geometry- is this right?

The question is a true and false. Two concurrent lines can never be perpendicular. Concurrent lines I thought were three or more lines that intersected at the same point. I think this is true because a perpendicular line has to intersect at a point that

59. ## math

A total of 129 players entered a single-elimination hand ball 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

60. ## ECONOMICS

In November 1990, Chrysler Corporation announced plans to initiate three shift or nearly continuous (21-hours –per-day) production at a number of its plants. Explain why Chrysler’s decision might have been prompted by movements in its wage costs or

61. ## accounting

P13-4A The following financial information is for Inca Company. INCA COMPANY Balance Sheets December 31 Assets 2007 2006 Cash \$ 70,000 \$ 65,000 Short-term investments 55,000 40,000 Receivables 104,000 90,000 Inventories 230,000 125,000 Prepaid expenses

62. ## spanish

where can i find the short story: What ought a man to do on earth.

63. ## pos110

bill of rights. Which is the most important to you? Which is the least to you?

64. ## Economics

I'm supposed to use a price index for GDP chart to find the GPD deflator of 1983 how do i do that? To get the chart google nipa bea chart,click the first choice, and select tale 1.1.4

65. ## Physics

What is the frequency shift of a 79 GHz police radar signal when it reflects off a car moving at 110km/h ?

66. ## Social Studies

Based on knowledge of John Locke, why did there exist among some humans the desire to debase and murder Jews during the Holocaust? I know that Locke believed all people are born good, and they are entitled to life libierty, and property, but how does this

67. ## English

what can I say about the theme of illness, disease and disablement in the play 'the white devil' by John Webster?

68. ## geometry

B is the midpoint of Symbol for segment AC. AB=3x-6 BC=2x+2 What is the value of AB? Show your work for credit.

69. ## algebra

the polynomial 0.041h - 0.018a - 2.69 can be used to estimate the lung capacity, in liters, of a female with height h, in centimeters, and age a. find the lung capacity of a 60 year old women who is 190 centimeters tall

70. ## Chemistry

People that have nearly drowned in cold water can sometimes be revived. However, people that have been in warm water for the equivalent amount of time have died. Explain in terms of rates of reaction. Now obviously reactions occur faster in warmer

71. ## math calc!

find the volume of solid bound by planes x=0 y=0 z=0 and x+y+z=7

72. ## Pre-cal

Please determine the following limits if they exist. If the limit does not exist put DNE. lim 2+6x-3x^2 / (2x+1)^2 x-> - infinity lim 4n-3 / 3n^2+2 n-> infinity I did lim 2+6x-3x^2 / (2x+1)^2 x-> - infinity (2+6x-3x²)/(4x²+4x+1) (2/x² + 6/x -3)/(4 + 4/x

73. ## chem

how much pressure does 35 grams of carbon dioxide at 400 kelvin exert?

74. ## math

evaluate the double integral and reverse order of integration [(first integral 0 to 1)(second integral 9y to 9)e^(x^2)dx)dy

75. ## gen chem

The free energy change for dissolution of CaSO4 at 25C is 28.774kJ/mole. What is the solubility of this compound. i got ksp lnK = deltaG/RT lnK= 28774/(-8.31*298) Ksp = 2.39e-12 i don't know waht to do after this..

76. ## Algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

77. ## social studies

Why did they build early towns

78. ## Math/Algebra

Solve the following system of equations. x+7y=8 (1) x=2-7y (2) What is the solution of the system? Type the ordered pair state that there is no solution. I don't understand what they are asking me to do. Should I use #2 in equation #1 or something else?

79. ## algebra

Evaluate the logarithmic equation for three values of x that are greater than 2, three values of x that are between 1 and 2, and at x=2. y = -log(sub)3 (x - 1) I don't know if I did this right, I changed it to -3^y=x-1. I am having difficulty replacing x

80. ## Chemistry

Write net ionic equations for these reactions : Cu^2+ + Fe -> Hg^2+ + Fe-> Fe^3+ +Fe-> Pb^2+ +Fe-> Ag^+ + Fe-> and then the same but instead of Fe, addition of Cu to the six solution that I wrote before.. What ions are reacting in each case? please help me

81. ## Socal Studies

For a timeline: would it go from 100 AC to 200 DC to 300 DC. OR would it be 100 AC to 100 DC to 200 DC?

82. ## Algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

83. ## English

Can you please check if all the alternatives are possible? Thanks you very much in advance. 1) England defeated the Spanish Armada also thanks to bad weather. 2) Th spirits said that no-one/nobody/no man born of woman (or a woman) could defeat/hurt/harm

84. ## a;gebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

85. ## statistics

A population with a mean of u =10 has EX= 250. How many scores are in the population?

86. ## Algebra

1. Evaluate each. Write the answer in simplified radical form: __ __ __ i) ã3 ∙ 3ã3 ∙ 4ã3 _________________ ii) ãx 3ãy 5ã ________ 4ãz2(Z squared)

87. ## Physics (math)

Fayce Slift found that it took her 132 steps to pace off 100.0 m. She was studying the flying trapeze. She noticed that when the ride was running that the chairs swung outward. She found that it took her 14.5 steps to go from the outside of the swing path

88. ## english

I'm writing an essay and my textbook doesnt have an author, so I how would i write a direct quote from the book. The book is called Pearson Custom Business Resources, so Im thinking i would just put Pearson and the page number at the end of the quote

89. ## math calc

using geometry, calculate volume of solid under z= square root of 49-x^2-y^2 and over circular disk x^2+y^2 is less than or equal to 49

90. ## Psychology 210

What are the potential benefits and drawbacks of a test that attempts to measure skills, abilities or traits?

91. ## chemistry

What gas volume does the water have at a temperature of 100 and 1 pressure?

92. ## English

I forgot to inclue a few more sentences. Are the parenthetical statements all possible? Thanks for your invaluable help 1) What clothes are popular among English teenagers at the moment? Skinny, washed-out jeans, striped T-shirts, sneakers and baseball

93. ## geography

One result of South Korea's efforts to compete economically with Japan and other Western nations has been a. an absence of labor strikes in the country b. major disputes between workers and business owners c. a decline in the middle class population of the

94. ## nutritian

which of the following food items should have the highest energy content? a. nuts b. popcorn c. marshmallow d. apple

95. ## gen chem

suppose a compound could point in any of the three directions in the solid and still have the same energy. how many molecules would there be if the total entropy of a solid sample of this compound was 3.48x10^-9 j/k

96. ## history- HELP!

there are ten provinces in canada but on seven in 1873. wHICH PROVINCED DID NOT EXIST IN 1873?

97. ## Calculas

I stumble a question I cannot answer please help up. Find value of lower and upper limit of k for equation: (3x^3-5)/x^2 dx = 10 limit: -k , k

98. ## algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

100. ## math

How do I figure out what the nth term is in a sequence? Exmaple: 1, 3, 5,7, What would be the 100th term? IF adding 2 to each would the formula be n+2? How to calculate 100th term?

101. ## health

can a person be infected with HIV but not exhibit AIDS?

102. ## math

supplies on invoice are 4 bottles alcohol @ 2.25 each = 9.00 3 thermometers @ 1.95 each = 5.85 6 boxes cotton @ .29 each = 1.74 6 bottles mouthwash @ .89 = 5.34 11 crtns cotton swabs @ .39 each = 4.29 3 hypo needles @ .39 each = 1.17 Dr. receives 3% disc,

103. ## math calc Lagrange

find points on surface z^2=xy+1 are closest to point (4,2,0) List points as comma-separated list.

104. ## gen chem

What is the boiling point in K of Zn, if the entropy change for evaporation of .8564 mole at its boiling ponit is 95.067K? The heat of vaporization of Zn is 131jk/mole.

105. ## College Chemistry

How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?

106. ## biology

explain two attributes of enzymes in catalyzing chemical reactions and in metabolic pathways.

107. ## English/Creative Writing

I'm really stressing over this badly, and need some help on it. What we have to do is make an un-rhymed poem that's 10 lines long, using Unstressed and stressed words and has to be 10 syllables per line in meter. Any examples would be great!

108. ## Chemistry

I have no idea what I'm doing wrong here... Question: A solution is 0.3% by mass calcium chloride. Therefore, 145 g of the solution contains how many grams of calcium chloride? My solution: 145g x (0.3g / 100g) = 0.435g or 0.44g CaCl2 What am I doing

109. ## math

Write the following series using sigma notation: (x/3)-((4x^2)/9)+(x^3/3)-((16x^4)/81)+((25x^5)/243)-...

110. ## math

find implicit differentiation (1-2xy^3)^5=x+4y

112. ## algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

113. ## algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

114. ## Physics

draw a ciruit of 2 lamps in parllel with each other connected to a power source and an ammeter to measure the total current of the circuit and a voltmeter to measure the potential difference across the two lamps

115. ## Algebra- IS this right?

Evaluate The Logarithmic Equation For 3 Values Of X Greater Than -1 3 Between -2&-1 &x=-1 Y = Ln(x + 2) Y = Ln(x + 2) ,x=3,y=1.6,1.6>-1. X=-1,y=0.

116. ## college algebra

4. The yearly cost T, in thousands of dollars, of tuition and required fees at a private college (includes two- and four-year schools and does not include room and board) can be approximated by T= 3/5n + 5 where n is the number of years since 1985. That

117. ## English

How would I write in a diary entry format? Would it be me talking about my thoughts? Also what is one object that represents both tennis and basketball?

118. ## nutritian

what is responsible for one food item to have higher energy content than another? a. lower fat content b. higher fat content c. lower carbohydrate content d. higher carbohydrate content

120. ## math

Solve for x: 5^x+2=7^x-2

121. ## Computers

I need help with the following question: Which is more important in increasing network speed, network capacity or processing speed? Why?

122. ## algebra

Solve the question for both the exact irrational root and its rational approximation to the nearest tenth 3h + sqrt 2 = sqrt 5

123. ## College Chemistry

How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?

124. ## Social Studies (MAPS)

grid north is west of true north by 0 degrees, 57 minutes, which is equal to 17 mils. (There are 6,400 mils in a circle.) Magnetic north is east of true north by 8 degrees, which is equal to 142 mils. *B. What is the difference (in degrees and minutes)

125. ## Algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

126. ## algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

127. ## allgebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

128. ## Social studies

How is the culture of India reflected in the idea of the sacred cow? What influence does this have on the arts in India? What is a sacred cow in the United States>

129. ## calculus

calculate the derivative of the following functions at the given point? f(x)=3x-1 x=17 and f(x)=-5x^2 x=2

evaluate r^2-3 when r=-7

131. ## Cardiovascular

How does HMG-CoA reductase inhibitors (aka statin) influence: a) LDL b) CRP

132. ## language

what is a homonym? the queston is? what is a homonym for missed? A)must B)mist C)most

133. ## PHYSICS

TWO WEIGHTS ARE ATTACHED TO BOTH ENDS OF A WIRE AND SLIDED ON A BLOCK OF ICE.INVESTIGATE THIS PHENOMENON?

134. ## Math

x^8y^-5 over z^-4 Can you please show me how you got the answer. Thanks

135. ## nutritian

What is responsible for one food item to have higher energy content than another? a. lower fat content b. higher fat content c. lower carbohydrate content d. higher carbohydrate content

136. ## Chemistry

I am designing a procedure for a lab where I have to use indicators to create an acid-base table from 6 solutions. I am just wondering...if I put a drop of indicator into a solution, do I have to dispose of it and obtain new solution before putting in

137. ## ANATOMY

WHAT IS BLOOD PLASMA FURTHER SUB-DIVIDED INTO?

138. ## gen chem

calculate [H+] if [OH] is 1.688x10^-3

139. ## math

find the min and max values f(x,y,z)=5x+3y+2z on a sphere x^2+y^2+z^2=1

140. ## Calc

f(x,y,z) = y; W is the region bounded by the plane x+y+z=2;cylinder x^2+z^2=1. and y=0. What I have set up isL 4 int(0 to 1) int(0 to sqrt(1-x^2)) int(0 to 1-x-y) y dydzdx. But solving this is pretty cumbersome. Any other ideas?

141. ## Chemistry

I have no idea what I'm doing wrong here... Question: A solution is 0.3% by mass calcium chloride. Therefore, 145 g of the solution contains how many grams of calcium chloride? My solution: 145g x (0.3g / 100g) = 0.435g or 0.44g CaCl2 What am I doing

142. ## Spanish (Demmotratives)

Which one would be correct : Esta es una escultura de deity. OR Esta escultura de deity. Thank You.

143. ## history

what was the name of the ship that Sir Neville Howse came home on after WW1 also the date of return to Australia

144. ## hi

use of cohesive devices reflects a speakers ability to:

145. ## Algebra

The seats in a theater are arranged in parallel rows that form a rectangular region. The number in each row is 16 fewer than the number of rows. How many seats are in each row of 1161 -seat theater?

146. ## SCI 275

What are some current sustainability strategies and solutions for water resource problems?

147. ## Algebra- IS this right

Evaluate The Exponential Equation For 3 Positive, 3 Neg. Values Of X &x=0 Y=3^-x" Y=3^-x,x=3y=1/27, x=-3,y=27,x=0,y=1.

148. ## health

is HIV the primary cause of death in people with AIDS?

what is the equivalent fraction of 8/9

150. ## Math (slope)

how do you find slope?

151. ## math

Is 16 ƒ 16 true or false?

152. ## math

iam so weak in maths.