Questions Asked on
November 21, 2012

  1. math

    A recipe for 24 cookies calls for 6 tablespoons of sugar. If you make 36 cookies and use 10 tablespoons, will the cookies taste the same? Explain

  2. Math

    Los Angeles is about 385 miles from San Francisco. How far apart would the cities be on a map with a scale of 1 in. = 25 mi? If necessary, round to the nearest hundredth.

  3. Science

    What do you think would happen to the rates of photosynthesis of seagrass and algae if their habitat became muddied when channel clearing caused sediment to stay mixed in with the water? Explain.

  4. Chem

    What volume of 6.0 M sulfuric acid is required for the preparation of 500.0 mL of 0.30 M solution?

  5. Math

    Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth. 2.1 fluid ounces 2.3 fluid ounces 2.6 fluid ounces 1.8 fluid ounces

  6. calculus

    A fence 5 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

  7. precalculus

    Find the first six partial sums S1, S2, S3, S4, S5, S6 of the sequence. 1/2, 1/2^2, 1/2^3, 1/2^4'...

  8. Mathematics

    Solve the proportion using cross products. Round to the nearest hundredth if necessary. 18. 22m/55h = 12m/h hours 48 30 45 22

  9. computer science

    Can you find the reason that the following pseudocode function does not return the value indicated in the comments? // The calcDiscountPrice function accepts an item’s price and // the discount percentage as arguments. It use those // values to calculate

  10. Calculus

    Find (1) marginal and (2)the average functions for the following total function. Evaluate them at Q=3 and Q=5 π=q^2+13q+78

  11. chemistry

    A solution containing 80g of NaNO3 in 75g of H2O at 50 degrees celsius is cooled to 20 degrees celsius. A. how many grams of NaNO3 remain in solution at 20 degrees celsius? B. How many grams of solid in NaNO3 crystallized after cooling?

  12. Math

    A truck needs 7 gallons of fuel to travel 56 miles. Can the truck travel 48 miles with 6 gallons of fuel? Explain. A:No; 7/56 and 48/6 are not proportional because 7 × 6 does not equal 48 × 56. . B:Yes; 7/56 and 48/6 are proportional because 7 × 6 = 48

  13. Pyschology

    How does one apply the psychodynamic perspective to racism. I do know what psychodynamic perspective is and the elements of it. But I'd like to know how should i subject the psychodynamic perspective in relation to racism. Should i elaborate on the

  14. Algebra

    expand log2 (8x^2+48X+72)

  15. precalculus

    x= 3^log_3_^8 ? The log being in the exponent is throwing me off.

  16. Chemistry

    How much heat would be released by burning one gallon of octane? The density of octane is 0.703g/mL. 1 gallon= 3.79 liters.

  17. chemistry

    Determine whether a solid forms when solutions containing the follow salts are mixed. If so, write the ionic equation and the net ionic equation. a: Na3PO4 and AgNO3 b: K2SO4 and Na2CO3 C: Pb(NO3)2 and Na2CO3 d: BaCl2 and KOH

  18. Physics HELP!!

    a). What is the wavelengh of a 2.54MHz ultrasound wave travelling through aluminum?(the speed of sound in aluminum is 6420 m/s) b). What frequency of electromagnetic wave would have the same wavelength as the ultrasound wave above?

  19. statistics

    The number of grams of carbohydrates in a 12-ounce serving of a regular soft drink is listed here for a random sample of sodas. Find the 99% confidence interval for the mean number of carbohydrates in all brands of soda. 48 37 52 40 43 46 41 38 41 45 45 33

  20. chem

    A sample of potassium hydrogen oxalate, KHC204, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.

  21. chem

    What weight of potassium bromide, KBr, could be recovered by evaporating 650.0 g of 15.0 percent KBr solution to dryness?

  22. epoka university

    1) The cost that is related to the particularly cost object and can be traced to it in an economically feasible (cost-effective) way is called: o Indirect cost o Cost tracing o Direct cost o Variable cost

  23. statistics

    Consider a Stanley Cup playoff series in which the Toronto Maple Leafs hockey team faces the Ottawa Senators. Toronto hosts the first, second, and if needed, fifth and seventh games in this best-of-seven contest. The Leafs have a 65% chance of beating the

  24. English

    Posted by rfvv on Wednesday, November 21, 2012 at 5:20am. 1. Does it live in the land or in the sea? 2. Does it live on land or in the sea? (Are both the same in meaning?) English - Writeacher, Wednesday, November 21, 2012 at 8:41am In the land = down in

  25. niches

    can animals be consumers and decomposers? or are they only separated?

  26. Sociology

    I've read the Elite Power,and i know what Mills definition of Elite Power is. But I'd would like to know what is the purpose of the Elite Power? According to C.Wright Mills, what is the Elite Power about?

  27. Science.

    A car travels 5km to east. Then it goes 3km to north and then 2km to west. What is the displacement the car has traveled?

  28. coustic poems

    What is the acoustic poem for kilometre

  29. calculus

    A fence 5 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

  30. English

    1. Does it live in the land or in the sea? 2. Does it live on land or in the sea? (Are both the same in meaning?)

  31. Maths (Linear and Quadratic Equations)

    I need to solve a pair of equations where one is linear and the other is quadratic. 2x2 + 3xy + y2 = 0 3x + y = 2 last 2 in 2x2 is square root two, same after y2. help please!!!!!!!!!!!!!!!

  32. Maths

    A girl buys x magazines at 50p each and x-3 magazines at 40p each. She spends £6 in all. Find x?

  33. statistics

    The reaction time of subjects to a certain psychological experiment is considered to be normally distributed with a mean of 20 seconds and a standard deviation of 4 seconds. What is the reaction time such that only 10% of subjects are faster?

  34. chem

    On the average; glucose (C6H1206) makes up about 0.100% by weight of human blood. How much glucose is there in 1.00 kg of blood?

  35. statistics

    if a test has a mean of 150 and a standard deviation of 30, we know that: a)50% of the respondents scored between 180 and 210 b)68% of the responents scored above 120 c)50% of the respondents scored between 120 and 210 d) 96% of the respondents scored

  36. chem

    Sulfuric acid reacts with sodium hydroxide according to this equation: H2S04 + 2 NaOH Na2(SO4) + 2 H2O A 10.00 mL sample of the H2SO4 solution required 13.71 mL of 0.309 M NaOH for neutralization. Calculate the molarity of the acid.

  37. chem

    What will be the percent composition by weight of a solution made by dissolving 12.0 g of zinc nitrate, Zn(NO3)2, in 45.0 g of water? Zn(NO3)2_____________ H2O _____________

  38. Mathematics

    A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours 48 parts 41 parts 172 parts 17 parts

  39. Math

    In a survey, three out of seven people named blue as their favorite color. One out of six named red. If 1,092 people were included in the survey, how many named neither blue nor red as their favorite color? 17. 650 people 468 people 442 people 806 people

  40. Maths

    Thanks guys for your response!!!! x I have another one. If the two functions f and g are defined by f:x --- 25/(3x-2) g:x --- x^2 What is the solution of equation fg(x)=2/(x-1) Thanks in advance :D

  41. Mathematics

    3.7/2.4 = y/8.2 12.64 10.56 14.80 5.32

  42. Mathematics

    Are the figures below similar? Why or why not?(Use the link below. You cannot directly copy then paste it to another tab, you need to delete the spaces in the link then enter into the website showing the picture to answer this question.) gyazo . com /

  43. Hydrology

    A square liquid storage tank has plan-view dimensions (looking down from above) of 10m x 10m. Over a one day period, 300m^3 of liquid enters the tank, and the level of the tank rises 2 meters. How much liquid has left the tank? How do I set this up?

  44. Math

    What is the truth table for p v ( q arrow going straight across p )

  45. statistics

    consider a stanley cup playoff series in which the toronto maple leafs hockey team faces the ottawa senators. toronto hosts the first, second and if needed fifth

  46. Science

    Difference between mass unit and force unit.

  47. math

    A package of spaghetti weighs 266 grams. How many ounces does the package weigh? 1 oz = 28 g

  48. Spanish

    Is this wrong? Tienen que hacen las maletas. Salen para Monterrey mañana.

  49. Chemistry

    How would a student make 500.0 mL of a 0.08500 M solution of iron(III) using a stock solution that is 0.3180 M in iron(III)? Explain how this would be done.

  50. Chemistry

    A student measures k for a certain blue dye to be 19.4 M^-1 at 560 nm. What is the molarity of the dye in a solution with an absorbance of 0.118 at this wavelength?

  51. English

    1. Baby blue whales drink 200 liters of their mother's milk. 2. Baby blue whales drink 200 liters of their mothers' milk. (Which one is grammatical? Do we have to use "mother's" or "mothers'"?)

  52. Physics

    An 80 kg man climbs a 50 m-high hill in 20 minutes. What is the average power in watts he expends climbing the hill?

  53. Physics

    A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of energy, find the velocity of the roller coaster at a height of 5 m above the ground.

  54. algebra

    (3a^4b+4ab^3)+(5ab^3-3a^4b

  55. Calculus

    Integral [-1,6] 12x^2–x^3–32x

  56. chemistry

    What percentage of the Ba2+ in solution is precipitated as BaCO3(s) if equal volumes of 2.4*10^-3 M Na2CO3(s) and 1.1*10^-3M BaCl2(aq) are mixed

  57. Microsoft Infrastructure

    You remember learning that remote RADIUS server groups offer some benefits to a network with multiple RADIUS servers. Research those benefits and decide if making changes to your network is necessary. Describe the findings of your research concerning the

  58. Physics A

    how much work is being done a bookshelf being pulled 5 meters at an angle of 37 degrees from the horizontal? The magnitude of the component of the force that does the work is 43 Newtons

  59. algebra

    60x^2-15x

  60. algebra

    49x^2+21x

  61. Hydrology

    There is a bucket with a mouth area of 190cm^2 that is collecting rainfall. It collects 950ml of rainfall in one hour. What is the rainfall rate? How do I set this up?

  62. English

    1. The animal is one foot long. 2. The animal is 49 feet long. 3. There is a krill in the water. 4. There are two krill in the water. (Are they all grammatical? How can we use 'krill'? Would you let me know the use of 'krill'? Thank you.)

  63. chemistry

    In a 1.070 M aqueous solution of a monoprotic acid, 4.81% of the acid is ionized. What is the value of its Ka?

  64. Drama

    I have to find a 6-8 minute monologue for my HSC and i cant find a good site to help me if anyone has any good answers please help me i need it soon!!

  65. chemistry

    What is the concentration of ammonia in a solution if 24.20 mL of a 0.1140 M solution of HCl are needed to titrate a 100.0 mL sample of the solution?

  66. Chemistry

    What is the pH at the equivalence point when 0.10 M HNO_3 is used to titrate a volume of solution containing 0.30 g of KOH?

  67. chemistry

    calculate Cu2+ in a 0.15M CuSO2 (aq) solution that is also 6.5M in free NH3. Cu^2+(aq)+ 4NH3(aq) [Cu(NH3)4]^2+ kf=1.1*10^13

  68. math

    use any method to estimate 667-651

  69. English

    1. The animal eats one kilogram of plant every day. 1-1. The animal eats one kilogram of plants every day. 2. The animal eats one kind of plant every day. 3. The animal eats many kinds of plant every day. 4. The animal eats many kinds of plants every day.

  70. math

    find all the values of X between 0 and 2π such that cos(3x-π/2) = -√3/2

  71. Physics

    A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?

  72. PreCal

    sin theta=4/7, find the exact value of sin (theta+Pie/6)

  73. Physics

    A 1.9 kg ball is attached to a ceiling by a string. The distance from the ceiling to the center of the ball is 1.13 m, and the height of the room is 3.00 m. (a) What is the gravitational potential energy associated with the ball relative to the ceiling? J

  74. English ms. sue

    ms. sue i writing narrative story on topic that every generation hve something valuble to give. that you learn from everyone. i thought of writing story on my cousin who pass away from cancer, and i going to write in third person and mention how that

  75. Calculus

    integral[1-6]sqrt(6)*lnt dt

  76. Physics

    The two blocks in the figure below, m1 = 1.2 kg and m2 = 4.8, are connected by a massless rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.38

  77. Physics

    A car traveling at constant speed safely negotiates a frictionless banked curved. Calculate the speed of the car when the road is banked at 20 degrees and the radius of its path is 50 meters. (HINT - Do not rotate your axes) Answer v=13.35 m/s

  78. coversion

    150lbs= how many kg when 1kg=2.2 lbs

  79. physics

    The range of human hearing extends from approxmately 20 HZ to 20 000 HZ. Find the wavelenghts of these extremes when the speed of sound in air is equal to 343 m/s. A dolphin is 25 degrees C sea water emits a sound directed toward the bottom of the ocean

  80. Leading Innovation Global Organization

    define and analyze ways in which innovation at HCL Technologies will likely be influenced by trends shaping global markets.

  81. precalculus

    log_6(2x + 4)=2? 5 In x=10? log(x+25)=1+ log(2x-7)?

  82. precalculus

    e^3x-7 x e^-2x =4e First step I get e^1x-7 =4e For the example in my book, the next step they divided by e. But I have no idea how to do this, or what involves?

  83. precalculus

    My book tells me to solve each exponential equation. I am given a lot of problems such as 6^x+1 = 4^2x-1 where I use In in the problem to help get my answer. However, in the same section, the book starts giving me problems such as 3(2)^x-2 +1=100 and

  84. english

    interesting vocabulary to describe someone is optimistic ,out going ,compassionate, relluctant, responsible, easygoing and wise . thanks!

  85. precalculus

    When asked to sketch the graph of g(x)= -e^(x+1) +1, how do I turn this equation into exponential form? Or can I? I always get confused on what to do especially when I need to the x part of the equation out of the exponent.

  86. calc

    Find the point on the line 2 x + 6 y + 2 = 0 which is closest to the point ( 2, 0 ).

  87. calc

    A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 8−x2. What are the dimensions of such a rectangle with the greatest possible area? width= length=

  88. Math / Inverse Functions

    The revenue in dollars of a company selling its products per month is given as, R(x) = 3000x - 20x^2, while the cost in dollars is given by, C(x) = 600x + 4000. Find and simplify P(x), where P(x) is the profit per month.

  89. precalculus

    Find the first six partial sums S1, S2, S3, S4, S5, S6 of the sequence. 2, 5, 8, 11, . . .

  90. Physics. Free electron density, please help!

    A length of wire has a radius of 3.00 × 10-3 m and a resistance of 0.200 Ω. When the potential difference across the wire is 10.0 V, the electron drift speed is found to be 2.98 × 10-4 m/s. On the basis of these data, calculate the density of free

  91. Math

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below 47 said they drove alone 24 rode in a carpool 35 rode public transportation 3 used both carpools and public transportation 4 used both a carpool

  92. Math-II

    If C is inversely proportional to T, when C=1/6 and T=4/7, find C when T=10.

  93. precalc help

    Find the exact value without a calc 1. log base 3 of 8 times log base 8 of 9. I started by changing both bases to 10 but don't know what to do from there. 2. e ^ log base e^2^9. I hope that isnt confusing. My teacher said we are suppose to get the bases

  94. English

    1. Complete the following sentences which compares yourwelf with your partner. 2. Complete the following sentences which compares you with your partner. (Which one is correct? Do we have to use 'yourself' or'you'?)

  95. Physics

    A soccer player kicks a football frombground level with an initial velocity of 27.0m/s, 30deg. Solve for the: A. Ball's hang time B. Range C. Max Height Ignore air resistance. (Hint: hang time refers to the time the ball is in the air.)

  96. math

    4x/5-x=x/15-20/3=

  97. math

    what are the three consecutive whole numbers whose sum is 48?

  98. Physics

    A bullet with a mass of 10 imbeds itself in a wooden block of mass 3990g and is free to move. If the speed of the block and bullet together is 50 cm/s just after the impact what was the original speed of the bullet ?

  99. English

    1. How long are blue whales? - They are about 30 meters long. 1-2. How big are blue whales? - They are about 30 meters long. 2. How much does a blue whale eat? -It eats about 4 tons of krill each day. 3. Every day, how much do baby blue whales drink their

  100. Physics

    A bullet with a mass of 10 imbeds itself in a wooden block of mass 3990g and is free to move. If the speed of the block and bullet together is 50 cm/s just after the impact what was the original speed of the bullet ? what was the right formula to use.? pls

  101. calculus

    QUESTION 3 A boat sails 30 miles to the east from a point P, then it changes direction and sails to the south. If this boat is sailing at a constant speed of 10 miles/hr, at what rate is its distance from the point P increasing a) 2 hours after it leaves

  102. Math

    Assuming that each corner must be pinned, what is the least number of drawing pins that you need to display four rectangular pictures of the same size and shape so that they can all be seen?

  103. Corporate law

    At a closing at 10 a.m. on May 3, 2005, X Corp. delivers $25,000,000 to the seller of a factory using $20,000,000 from Bank One secured by a mortgage on the property, and the attorney for X Corp. records its title to the property at the same time. At 2

  104. Chem

    What volume of 6.0 M sulfuric acid is required for the preparation of 500.0 mL of 0.30 M solution?

  105. Chem

    What volume of 6.0 M sulfuric acid is required for the preparation of 500.0 mL of 0.30 M solution?

  106. math

    all combinations of how to make $1,95c with dimes and quarters

  107. math

    The graph of the polynomial function P(x) is shown. a. List the real zeros of P(x). b. List the turning points of P(x). c. State the left and right behavior of P(x).

  108. Physics HELP!!

    Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal

  109. Physics

    For a certain transverse wave, the distance between two successive crests is 4.48m, and 13 crests pass a given point along the direction of travel every 5.97s. Calculate the wave speed!

  110. Physics

    A hammer taps on the end of a 8.13m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by

  111. Maths

    Thanks steve for a brilliant answer! Got one last one which is gobbledegook to me. Two functions f and g are defined by f:x(arrow)x^2 + 3 g:x(arrow)2x + 1 find: a) the function fg b)solve the equation f(x) = 12g^-1(x) Many Thanks!!!!

  112. Physics

    A traveling wave has displacement D(x,t)=(3.00cm)sin(5.36x-6.71t), where x is in meters and t is in seconds. What is the wave speed of this wave? **snapshot graph at t=1/4 s

  113. Physics

    Bats can detect small insects that are about equal in size to the wavelength of the sound the bat makes with its echolocation system. A bat emits chirps at a frequency of 17.7kHz. Using the speed of sound as 340m/s, what is the smallest insect the bat can

  114. biostatistic

    Thanks for your help.

  115. maths

    A cylindrical vessel without a lid is made from a sheet of metal . Find the area of the metal required if the length of the vessel is 35cm and its diameter is 28cm ????

  116. statistic

    Base line BP:120,145, 130,160,152,143,126. After 4 week:122,142,135,158,155,140,130. A clinical trial is planned to compare an experimental medication to lower blood pressure. a pilot study is conducted involving 7 subjects.The objective was to see how BP

  117. Physics

    Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.85 105 Pa and the pipe radius is 2.80 cm. At the higher point located at y = 2.50 m, the pressure is 1.28 105 Pa and the pipe

  118. Statistic

    experimental Placebo (n=100) (n=100) Mean BP 120.2(15.4) (131.4(18.9) Hypertentive(%) 14 22 side effect (%) 6 8 Trial involve 200 subject,rendomally receiving either medication or placebo. The data collected at the end of trialafter 6 week study. a) test

  119. Math

    Which ratios can form a proportion? 9/45, 8/40 8/12, 12/21 8/12, 12/15 9/22, 14/28

  120. statistics

    LSAT test scores are normally distributed with a mean of 510 and a standard deviation of 110. Find the probability that a randomly chosen test-taker will score between 300 and 580. (Round your answer to four decimal places.)

  121. science

    The temperature of an electronic oven is 160 °C. The temperature at the outer surface of the oven in the kitchen is 50 °C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.020 m and a thermal conductivity of 0.045

  122. ALGEBRAIC METHOD

    HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0

  123. chemistry

    what is the ionic equation for 2HNO3(aq)+Ba(OH)2(aq)

  124. statistics

    The reaction time of subjects to a certain psychological experiment is considered to be normally distributed with a mean of 20 seconds and a standard deviation of 4 seconds. What is the reaction time such that only 10% of subjects are faster?

  125. Literature help??

    Is this an statement of opinion? But Leonardo seemed to be in no hurry to start casting. or So he wrote to the duke, listing all the thing that he could do. I think it is the first one I said, true?

  126. very complicated maths

    Hey guys, need some help with a question ive been stuck on for a looooooong time! The question is: Given that (x+4) is a factor of the expression 3x^3+x^2+px+24, find the constant value of p. Hence factorise and solve the equation 3x^3+x^2+px+24=0 Any

  127. chem

    How many grams of KBR, could be recovered by evaporating 650 g of a 15.0% KBr solution of dryness?

  128. college english

    what is a good attention getter sentence on carpal tunnel syndrome?

  129. Maths - HELP PLZ

    HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0 Any help would be appreciated

  130. chem

    how to prepare 300ml of .250M HCl from a 1.00 M HCl stock solution

  131. math

    rectangle room is 3.75 m by 2.84 m what is the length of the diagonal? how to calcuate?

  132. math

    rectangle room is 3.75 m by 2.84 m what is the length of the diagonal? how to calcuate?

  133. university physics

    Derive absolute error in equations: 1)Derive absolute error in (e/m) e/m= 2V/B^2*R^2 2)Derive absolute error in B B=8uN(Inet)/square root 125a