# Questions Asked onFebruary 19, 2009

1. ## math

ab+cd=34 ac+bd=38 ad+bc=43 what is a+b+c+d=? multiple choice: a)15 b)16 c)17 d)18 e)19 First, I tried guessing and testing, but couldn't find the correct answer. Then I tried isolating a a=(34-cd)/b I'm stuck, there are too many variables

2. ## chemistry

A current of 0.965 A is passed through 500 ml of 0.2 M solution of ZnSO4 for 10 min. The molarity of Zn2+ after deposition of Zn is 1. 0.1M 2. 0.5M 3. 0.8M 4. 0.194M

find out how long it takes a \$2700 investment to double if it is invested by 7% compounded semiannually. Round to the nearest tenth of a year . Use the formula A=P[1+r/n]^nt

4. ## math- need now

solve the equation by expressing each side as a power of the same base and then equating exponents 3125^x=1/square root 5

5. ## Math

What is half of 3/4?

6. ## spanish sra jmcguin

complete sentence with subjunctive of verb in parentheses. My answers are the ones with the astericks - Are they correct - thanks 1 No es verdad que Raul ( ser) ______ un mal excursionista ** sepa 2 Es probable que Titi y o ( ir) _______a caminar en el

7. ## Math

Assume that the set S has 10 elements. How many subsets of S have at most 4 elements? This question is from the section in my book called "Counting Partitions: Combinations." I would greatly appreciate any help! Thanks!

8. ## math

he said to his sister, he siad to his brother. What did the witty raindrop exclaim to all the others?

9. ## Calc help

find the area of the region enclosed by y=e^2x, y=e^5x, and x=1. i am having trouble seeing how this region looks like and having problems with how to start the problem in general. Much help is appreciated.

10. ## math

v = h(6 - (1/3)(2 - (2 h/5))^3 ) i try to solve this equation and i got (350+4h^2)/75 im not sure if this is correct please check it for me!

11. ## social studies

how people reduce air pollution in their city?

Is the SI unit of temperature celsius or kelvin? thanks

13. ## Chemistry

How do you determine the number of atoms in 28.7 grams of gold (Au)

14. ## Chemistry

C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l) is the equation. At 20 degree celsius, how many liters of acetic acid, HC2H3O2, would be formed? The density of acetic acid is 1.05g/cm3.

What is generalization? What words signal generalization and what words do not signal generalization?

16. ## algebra

Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. Thanks!

We are working on Fractions, mixed numbers and decimals. the problem says - write each decimal as a fraction or mixed number in simplest form... 0.7 or 0.08 ....ugg HELP

18. ## math

#1 If v=(6-(r^3/3))h and h/(2-r)=5/2 write V as a function of h . Simplify the function so that you can express it as a polynomial in h . #2 If y=ln(x) , write ln(x^x) as a simple function of y thxs alot!

19. ## Chemistry

What is the molecular formula of a molecule that has an empirical formula of CH2O and a molar mass of 120.12g/mol?

20. ## Math 116

On three consecutive passes, a football team gains 8 yards, lose 26 yards, and gain 16 yards. The total net yardage is how many yards. 8-26+16=32 yards. Is this right.

21. ## Algebra

Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. I'm reposting this because I didn't

22. ## sentence

somebody can help me to make sentence with this words? sat,sit,tub,top,stop,step Thank you for help!

23. ## Combinations

Assume that the set S has 10 elements. How many subsets of S have at most 4 elements? This question is from the section in my book called "Counting Partitions: Combinations." I would greatly appreciate any help! Thanks!

24. ## Pharmacy

I am in need of some help in being able to locate information for this assignment as it seems as though I am unable to locate the information for it. Select a culture with which you may or may not be familiar with. Trace its evolution into what is the

25. ## spelling

flower:rose::tree:??????

26. ## U.S.History

not sure Western farmers wanted "free silver" because they felt it would a. stabilize interests b. increase crop prices c. depress crop prices d. decrease the amount of money in circulation

27. ## U.S.History

What was a negative impact of "bonanza" farms? a. Output declined b. Farms got smaller c. Farms became disorganized d. oversupply led to lower prices D

28. ## Algebra

I have to write each of the following percent change into a ratio comparing it to the original quantity. Then I have to write it as a constant multiplier. This is the example in my book: 3% increase, 103/100, 1+0.03 So I understand how to do single digit

29. ## Chemistry

In a acid-base titration, 22.81 mL of an NaOH solution were required to neutralize 26.18 mL of a 0.1121 M HCl solution. What is the molarity of the NaOH solution?

30. ## Chemistry

A 0.2861 gram sample of an unknown acid (HX) required 32.63 mL of 0.1045 M NaOH for neutralization to a phenolphthalein endpoint. What is the molar mass of the acid?

31. ## U.S.History

i really need help with this question Describe the major territorial advances made by the United States in the 19th Century. any info will be helpful

32. ## English

Who does the monster care about in Mary Shelley's "Frankenstein"?

33. ## calculus

evaluate: integration of x^2 (square root of (1-2x^3))dx

34. ## Chemistry

What volume of 0.1209 M HCl is necessary to neutralize 0.5462 grams Ca(OH)2? Include a balanced chemical equation.

35. ## English

Would the real monster in Mary Shelley's Frankenstein be Victor Frankenstein because he just leaves the monster to care for himself and wants nothing to do with it? or someone else?

36. ## spelling

ocean:sea::river???

37. ## Physics

(1) A virtual image -7 cm tall and 17 cm away from a mirror is created by an object 7 cm away from a mirror. How tall is the object? What kind of mirror created the image? What is its focal length? (2) If a 1.75 m tall man is looking at a plane mirror from

Sorry, I didn't see this. Actually you have only one mixture; it happens to have two components. There is a more or less standard procedure for separating complete unknowns (that's where you know nothing about it) and if you know nothing about it that is

39. ## Law college level

Tragedy unfolded early this morning around 7:15 am as a local police officer failed to stop at a red light crashing into a crossing car wounding the officer but unfortunately killing a woman, and three children. Reports show that alcohol was not associated

41. ## Math

I need 3 ordered pairs of points that would be solutions to this equation. Can anyone help please, thanks! 4x - y = 7

42. ## Chemistry

If 150 mL of 1.73 M aqueous NaI and 235 g of Pb(NO3)2 are reacted stoichiometrically according to the balanced equation, how many grams of Pb(NO3)2 remain? Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq) Molar Mass (g/mol) NaI 149.89 Pb(NO3)2 331.21

43. ## Math

identify fraction relationship of 5/10 of 20=

I need help really bad. What are the three ways that unbalanced forces can cause an object to change it's motion?

45. ## Maths - Trig

I just had a test, and one question I tried heaps of times and I still couldn't answer. It was "Prove secèsinè + cosecè cosè = 2cosecè " Can someone please tell me if proving this is possible at all? (But don't tell me how to solve it)

46. ## spelling

whirlwind:breeze::downpour:???

identify fraction relationships 5/10 of 20=

48. ## Spanish

Actividad 10 - ¿Y tú? Contesta las preguntas. (Answer the questions.) 1 ¿Qué clases tienes? ¿Son fáciles o difíciles? Yo tengo la clase de español y historia. Son fáciles. 2. ¿A qué hora tienes la clase de español? Yo tengo la clase de español

49. ## calculus i need help please

evaluate: integration of x^2 (square root of (1-2x^3))dx

50. ## Medical Terminology

devise memory aids for any five terms relating to the musculoskeletal system

51. ## Chemistry

I converted 789,032 calories to Kilo Joules, and I got 3,301,309,888. I feel like this number is way to big. I set up the proportion like this: 789,032 x 4.184J/1c x 1000 kj/1J. Was this incorrect?

52. ## spelling

glue:sticks::thorns:?????

53. ## To NEO LOUIS - Math

I've removed your very complicated post, for which you have supplied no thinking on your own. Please repost when you can demonstrate that you have tried to answer all these questions -- and/or when you ask specific questions about your assignment.

54. ## science

is solubility a chemical, or a physical property? Thanks

55. ## GCSE Biology

what is the process of carbon dioxide leaving leaves?

56. ## math

how far will the bike travel if the wheel makes 5 revolutions? the diameter is 40cm. show work

57. ## algebra-Needed Quick

find the domain of a logarithmic function of f(x)=log[2](x-9)

58. ## actuarial science

To get into an actuarial science program I was wondering was sort of high school courses I would need to take and what kind of marks I'd need to acheive. I`ve tried googling this but I can't seem to find information on this anywhere :S

60. ## Chemistry

What would be the molality of a solution made up of 75cm^3 of water and 0.21 g of NaCl?

61. ## math

solve: x lnx - 30 + 5 lnx - 6x = 0

62. ## science

Where in nature could you find a source of energy just like batteries

63. ## U.S.History

Which best describes the main goal of the social gospel and settlement movements a. to improve living conditions for the poor b. to strengthen political machines c. to encourage immigration d. to create jobs for the unemployed A

64. ## U.S.History

not so sure about this Most African American Exodusters migrated west to a. work as sharecroppers on bonanza farms b. escape racial violence in the South c. find relatives who had fled during the Civil War d. prospect for gold and silver

65. ## algebra

What percent of 320 is 220 my answer is 6.88 make as a decimal.is this right. -12(

66. ## college Econ

Suppose Fred and Ethel need to divide 20 pizza slices and 10 cans of beverage. Fred's utility function is given by the equation U=Min(Z,B), where Z is the amount of pizza and B is the amount of beverage. Ethel's utility is given by the equation

67. ## U.S.History

this is what i have. please add more. i'm adding detail by detail which is taking me very long, please just tell me the MAJOR territorial advances that i should add Describe the major territorial advances made by the United States in the 19th Century.

68. ## computer

unscramble this word ienerpgcd

70. ## math

a number between 1 and 100. If it is divided by 3 or 5, remainder is 1. If it is divided by 7, there is no remainder: what is my member?

71. ## english

when did bad behavior be considered the cool thing to do? is there like a history of bad behavior being the right thing to do to be accepted into society?

72. ## U.S.History

What was a negative impact of "bonanza" farms? a. output declined b. farms got smaller c. farms became disorganized d. oversupply led to lower prices i got D according to my book heres what my book says: The farms' massive output caused problems, however.

73. ## science

Is milk a homogenous mixture? Thanks-Elise

74. ## english

I'm having trouble understanding how to answer this question about a reading I did, the question is "could Joe have anticipated John's approach?" could anyone possibly help me understand what this question means better.....thanks

75. ## Chemistry

A 0.2861 gram sample of an unknow acid (HX) required 32.63 mL of 0.1045 m NAOH for neutralization to a thenolphthalein end point. what is the molar mass of the acid?

76. ## Math...Applying the Order of Operations

Can you please show me where i'm going wrong? Here's the question: 2(14+35/7) - ((-14 + -35)/-7) A.28 B.31 C.26 D.26 E.38 Here are the rules that apply: Multiplying and Dividing Integers. *If the signs are the same,then give the answer a positive sign. *If

77. ## Chemistry

What volume of 0.1209 M HCl is necessary to neutralize 0.5462 grams Ca(OH)2? Include a balanced chemical equation.

78. ## science

If the volume of 26.100 grams of chloroform has a density of 1.49 g per ml, then what is the mass? I got 18.125. Is this correct? My other question is, if the mass of an aspirin is 250 mg, then what is the mass in kg? I got, .00025. Is this correct?

79. ## Chemistry

I had to convert 95.4 km/hr to m/sec. Would this be the correct series of proportions? 95.4 km x .62m/1km x .60m/1hr x 60 sec/1 minute I then got 212932.8. If this is not correct, then what is the correct way? Thank you so much.

80. ## Physics

What is the difference between radiant, solar, and thermal energy? Thanks

what is lateral and total surface area? What does "B" stand for? What does "P" stand for? What does "H" stand for?

82. ## what number am i

i am a three digit number i am less than 200 i am divisible by 12 and by 9 my units digit is less than my tens digits

83. ## math

bayside insurance offers two health plans.Under plan A, Gisselle would have to pay the first 110 dollars of her, plus 25% of the rest. Under plan b, giselle would pay the first 230dollars , but only 20 % of the rest.for what amount of medical bills will

84. ## Science

Is it that the higher or lower the gradient, the steeper a distance is? Which one, higher or lower?

85. ## Chemistry

How do you determine the number of moles in 78.6 grams of carbon tetrachloride (CCl4) ?

86. ## science

Technetium is a transition metal similar to manganese. what chemical and physical properties would you expect technetium to have?

87. ## Civics

Can ayou Vote? Can you be elected? 1)You are a 43 year old Jewish merchant in Pennsylvania in 1705. can you be eleected to [rovincial counicle? Why or why not? 2) Yo are a 56 year old roman catholic farmer in new haven in 1646. Can you vote?

88. ## Language

Just a curious question. Which language would be more useful, Spanish or French.

89. ## chemistry

Dose the law of conservation work when doing an expirement with vinegar and baking soda.

90. ## Classroom Management

In the 6th grade social studeis class Mrs. Jones asked Tom to stop talking with his neighbor, but he continued. After three other reminders, Mrs Jones asked Tom to move to another seat. Tom refused saying "You can't make me move.: What would you do? Short

91. ## Geometry

What is the math equation to find the scaled version if 1"=2' for Bed dimentions 6'3"L X 3'2"W

92. ## Math 116

I post some question this morning why have no one help me

93. ## history

why, after 1765, did the American colonists increasingly find British imperial rule unacceptable? What had changed -- and why?

94. ## Financing

During the sixth month of the fiscal year, the program director of the Westchester Home-Delivered Meals (WHDM) program decides to again recompute fixed costs, variable costs, and the BEP using the high–low method. Here are the number of meals served and

95. ## accounting

The Mountain View Senior Adult Program (MVSAP) is interested in starting a visiting nurse program. The program would use licensed practical nurses to make home visits once a week to full-pay clients in the community. The MVSAP will treat the visiting nurse

96. ## Health

When were baked potato chips invented?

97. ## science

What is the difference between radiant, solar, and thermal energy? Thanks

98. ## Literature

what is an example of modern day hero? because my work asks me to compare modern heroes with Huck and Jim from Huck Finn. I need to tell if modern heroes will give up their lives and freedoms for friendship, loyalty and other important things...the answer

99. ## Science

If the volume of 26.100 grams of chloroform has a density of 1.49 g per ml, then what is the mass? I got 18.125. Is this correct? My other question is, if the mass of an aspirin is 250 mg, then what is the mass in kg? I got, .00025. Is this correct?

100. ## Math

You've got a bucket labeled Apples, and a bucket labeled Oranges, and a bucket labeled Apples and Oranges. You know they're all incorrectly labeled. How many pieces of fruit do you need to pull out, and from which buckets, before you can correct the

101. ## Western Civilization

I have a essay for Next Wednesday about The massacre on SAint Bartholomew's day. so i have to consider it again from perspective of four imaginary observers. One of them is Marcel, who is soldier in the royal army. then compose essay on how he is react or

In January, gasoline cost \$1.05 per gallon. In July, gasoline cost \$1.20 per gallon. Find the percent of increase. Would the answer for this question be 14.3? And how do you do percent of decrease? _______________________________________ The original cost

103. ## Math

Joe and Anna collect football cards.The greatest common factor of the numbers of cards in their collections is 15.Altogether Joe and Anna have 75 cards.If Joe has more cards than Anna,how many cards do they each have?

104. ## health

I have to make a 3D model of the urinary system for health class. I'm thinking clay might be best to use, but I'm not that artistic. Any other ideas??

106. ## Kodaly Beats

Hi i have found a nursery rhyme and sounded out the beat using Kodaly below. Hickory Dickory Dock The Mouse ran up the Clock The Clock Struck one The mouse ran down Hickory Dickory Dock The pattern of this song is as follows: Ti-ti ti-ti ti-ti ta Ti-ti

107. ## Algebra

Translate to a system of equations. DO NOT SOLVE. A nontoxic scouring powder is made up of 4 parts baking soda and 1 part vinegar. How much of each ingredient is needed for a 16-oz mixture? What are the two equations? For most problems, I can easily find

Can someone else explain it but more easier for an 8th grader ______________________________________ In January, gasoline cost \$1.05 per gallon. In July, gasoline cost \$1.20 per gallon. Find the percent of increase. Would the answer for this question be

109. ## Physical Science

what 2 substances found in my home that could conduct electricity and explain why?

110. ## math 116

6-2(3x-3) =-18 6-6x-6=-18 12x=-6=18=24 12x=24 x=2 check this problem is it right.

111. ## chemistry

which stage of ionization is likely favored?

112. ## chemistry

which stage of ionization is likely favored?

113. ## Song of Myself+English

Has anyone read Song of Myself by Walt Whitman?? I can't find any themes for it. So hard to understand. Would slavery be a theme? I need atleast 4 themes associated with Song of Myself.

114. ## Social Studies/American Government

Could you check my answers by the way they have to do with the Missouri State Missouri State Constitution. Missouri State Constitution. 1. What is the Preamble? Answer: The Preamble is the first paragraph of the Constitution, and it states why the

115. ## algebra

C leaves home going 40 km/h. when c is 9 km from home, d starts after c from the same place, going 58 km/h. how long does it take d to catch up to c?

116. ## U.S.History

A major failure or Reconstruction was that a. the South's cotton production never recovered b. war debts remained unpaid c. racist attitudes continued in the North and South d. no African Americans were voted into Congress any idea on this

117. ## Social Studies/Missouri Facts

Could you also check these thanks. Could I get a letter grade I'm in 9th grade 1. Who is the Governor of the State of Missouri? Answer: Jay Nixon 2. Name the two major cities in Missouri. Answer: St. Louis and Kansas City 3. Where is the capital of

118. ## math

what is the least common positive integer that meets the following conditions: divided by 7 with remainder 4 divided by 8 with remainder 5 divided by 9 with remainder 6 i thought you could add 7 and 4 to get 13, then divide 13 and 7 with r=4, but it has to

119. ## math

x lnx - 30 + 5 lnx - 6x = 0

What were Caesar's reasons for attacking Gaul? (Be Specific) What was his "Campaign against the Helvetti" and what did he do during his years in Gaul?

121. ## college

Ethernet or Token Ring

122. ## algebra

7/d=14/d^ help with this problem 3(5-8)-3-1-2-6)= help with this problem

123. ## algebra

find f^-1(x) f(x)=x-5

124. ## U.S.History

i cant find this in my book. i've probably read about it but i don't remember In the 1890s, immigration patters shifted dramatically, with most immigrants now coming from a. northern European countries b. southern and eastern European countries c. Mexico

125. ## Algebra I

Write each percent change as a ratio comparing the result to the original quantity. Then write it as a constant multiplier. Book's example: 3% increase, 103/100, 1+0.03 I don't understand double digit numbers. The one that I have to solve is an 11%

126. ## U.S.History

The Pendleton Civil Act was passed to a. place additional regulation on the railroads b. end Japanese immigration to the U.S. c. end the spoils system d. print money backed by silver rather than gold C

127. ## Chemistry

I am supposed to add up these numbers, using the significant digits rules. 150 76.9 209 .036 I got 435.936. Following the sig. digs. rules, it would be 435.9, right? How does this then equal 440 as my science books says? Thank you so much.

128. ## Algebra

Were doing factoring and i don't get these (^ means squared) 1) m^-3m-2 2) 6c^-5c-4 3) ab+mn+an+mb 4) The length of a rectangular garden is 5ft more than the width. The garden has a 3ft wide cement walk sorrounding it. The total area of the garden and the

129. ## Algebra cont

d^=7d-12 (factoring the same as the last one

130. ## Math

Determine whether the function is one-to-one. If it is, find itd inverse. f(x)= 3x+4 over 5

given f(x) = abs(sin x) and g(x) = x^2 for all real x: 1) let H(x) = g(f(x)) and write an expression for it. 2) find domain and range of H(x). 3) find an equation of the line tangent to the graph of H at the point where x = pi/4.

132. ## Math 116

42/-6=-7 check these problem 3(c-5)= 3c-15= c= 3/15 C=5 Check this answer for me. Find decimal notation for the fraction -1/17. The decimal notation for the-1/17 is round to the nearest hundreth i get 589

133. ## Chemistry

What is the STP for 2.84g of (NH3)2(SO4)

134. ## chemistry

what is the volume at standard temperature and pressure for 28.4g of N2H6SO3?

135. ## U.S.History

please check these are some questions from the opening lines of Gettysburg Address. a. when Lincoln referred to "four score and seven years ago" what year was he talking about? 1776 b. What did Lincoln say the Civil War was testing? whether our nation can

136. ## chemistry acids and bases

which solution is potentially more hazardous to your eyes: .1M HCl or .1M NaOH? Why? are they equally hazardous since one is an extremely strong acid and one is an extremely strong base?

137. ## U.S.History

Prohibitions and purity crusaders shared the goal of a. making charity "scientific" b. redistributing the nation's wealth c. ending immigration from Asia d. improving the personal behavior of individuals i'm not 100% sure but i think D

138. ## spanish sra jmcguin

complete sentences with indicative or subjunctive forms of verb in parentheses 1. (ser) No dudi que Juan _____la mejor persona pra hacer el trabejo. **sea 2. ( tener) El conductir no niega que _____poca experencia por estas calles **tenga 3. ( decir )

139. ## Languages

How do you say, Happy Valentines Day in Spanish and in French?

140. ## U.S.History

someone answered this a while back, i just want to know if its correct What happened at the Massacre at Wounded Knee? a. American soldiers killed more than 200 unarmed Sioux b. General Custer's cavalry was completetly wiped out c. the Nez Perce fought for

141. ## Accounting

The Ritz Manor is a popular seaside resort. A double room costs \$220 for one night. In order to reserve a room, guests must pay one night’s stay in advance. On each floor of the hotel, Vendalite Company operates vending machines with energy bars, juices,

142. ## math

hi, could someone please help me solve this problem, i know the answer is 24, i just need to know how to solve it. a "lucky dollar" is one of nine symbols on each reel of a slot machine with three reels. a player receives one of the various payouts

143. ## History

In granting or gaining of civil rights to or by many groups in America, what were the 3 most important? Why were they the most important?

144. ## Chemistry

Determine the percent composition by mass of ammonia sulfate.

Do all poems need to rhyme? If so, give me the examples> Thanks.

146. ## algebra

how to simplify these expressions using positives exponents to express the final result 6-3= 5XO= (2x)-1=

147. ## Chemistry+balancing equation tips

We are on combustion reaction at the moment in chemistry, and I have to say, these reactions are like extremely hard to balance(well, just alot of erasing). It takes me a while to balance combustion reactions and I want to know if theres any tips in

148. ## Algebra

Find the decimal notaiton for the fraction -1/17, the decimal notation for the -1/17 is 0.5889 round it the hundreth.

149. ## science

how does a food web start?