Questions Asked on
February 17, 2010

Algebra
Why are small balloons cheaper than large balloons?
asked by Sakura 
chemistry
is methanol's(CH3OH) shape tetrahedral, pyramidal, bent, linear, or trigonal planer? i don't think its bent or linear...i think its trigonal planer. am i right?
asked by Anonymous 
ChemLabHELP!!
Heating 1.124g of an unknown NaHCO3NaCl mixture resulted ina mass loss of 0.270g. 1) Calculate the mass of NaHCO3 present in the original mixture. 2) Calculate the mass percent of NaHCO3 in the uknown mixture
asked by Macey 
math
Why was Jesse James in the hospital?
asked by Jan 
physics
A 15.0 Ohms resistor is connected in series to a 120V generator and two 10.0 Ohms resistors that are connected in parallel to each other. What is the total resistance of the load? What is the magnitude of the circuit current? What is the current in one
asked by Rony 
history
Why was Vladiir Lenin unhappy with the results of the February Revolution?
asked by Taylor 
chemistry
Which of the following are empirical formulas? A) Ribose (C5H10O5) B) Ethyl Butyrate (C6H12O2) C) Chlorophyll (C55H72MgN4O5) D) DEET (C12H17ON) (numbers are subscripts)
asked by Jack 
Chemistry
**When 0.187 g of benzene,C6H6, is burned in a bomb calorimeter, the surrounding water bath rises in temperature by 7.48 C. ** Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate
asked by Julie 
physics
A bag of sugar weighs 6.00 lb on Earth. What would it weigh in newtons on the Moon, where the freefall acceleration is onesixth that on Earth?
asked by mel 
Scientific studies
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did the stone fall?
asked by Aly 
Chemistry
Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 10.00 mL of glacial acetic acid at 25°C in enough water to make 150.0 mL of solution.
asked by Mindy 
Chemistry
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25kg of roomtemperature water (about 25C). You figure that you can boil water on the stove and pour it into the bath to raise the temperature. How much
asked by Anonymous 
Chemistry
Explain how to make a 1 Normal solution H3PO4.
asked by David 
Physics
The relatively high resistivity of dry skin, about 1x10^6 Ohm m, can safely limit the flow of current into deeper tissues of the body. Suppose an electrical worker places his palm on an instrument whose metal case is accidently connected to a high voltage.
asked by Anthony 
calculus
Find the length of the entire perimeter of the region inside r = 16sin(theta) but outside r = 4
asked by rao shahbaz 
Chemistry
In an experiment to find the percentage of calcium carbonate in sand from a beach, 1.86 g of sand reacted with an excess of dilute hydrochloric acid to give 0.55 g of carbon dioxide. CaCO3 (s) + 2HCL (aq) – CaCl2(aq) + CO2(g) + H2O (l) 1.Calculate the
asked by Tony 
Physics
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?
asked by Anthony 
Chemistry
How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.65 g of Na with H2O? 2Na+2H2O > 2NaOH + 2H2 Delta H= 368.4
asked by Anonymous 
statistics
In response to the increasing weight of airline passengers, the Federal Aviation Administration in 2003 told airlines to assume that passengers average 190 pounds in the summer, including clothing and carryon baggage. But passengers vary, and the FAA did
asked by steve 
Biology
2. Which statement best explains the effect of resources on population size? a. the exponential growth curve models the effects of limiting resources on population size b. Limited resources decrease the growth rate of population size c. Densitydependent
asked by mysterychicken 
AP Chemistry
A 1.2M NaOCl solution is prepared by dissolving solid NaOCL in distilled water at 298K. The hydrolysis reaction OCl(aq) + H2O(l) > HOCl(aq) + OH(aq) occurs. a. Calculate the value of the equilibrium constant at 298K for the hydrolysis reaction. b.
asked by Anonymous 
Trig
How do you express sin4x as a trigonometric funcition of x using the identities? I think that you are supposed to start with the sine sum identity and then use the double angle identities for sin2A and cos2A, but after that I get stuck...
asked by Taylor 
EnglishGrammar
When would you use: Jim and I or Jim and me? Can you give me some examples...and maybe a website. Thank you.
asked by Christopher 
Physics
Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.1 M Ohm measured between two electrodes placed 20cm apart along the leaf. The leaf has a width of 2.8
asked by Anthony 
Physical Science
If a cube of Jello is cut into two pieces, what property of the pieces did not change?
asked by Tamika 
chemistry
How many moles of TiCl4 can be produced when 9.00 mol Ti react with 4.00 mol Cl2?
asked by sara 
Chemistry
How much heat (in kilojoules) is released on reaction of 4.10 g of Al? Reaction: 2Al(s) + 3Cl2(g)>2AlCl3(s) Delta H= 1408.4 KJ I converted grams to Al to moles and since there are 2 moles of Al, what do i do with the 1408.4 KJ? please provide steps.
asked by Julie 
Physics
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, using all the metal, with a resistance of 1.7 Ohm. What length l will you choose for your wire? What diameter d will you
asked by Anthony 
Physics
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.8g of copper and asked to make a wire, using all the metal, with a resistance of 1.3 Ohm. Copper has a density of 8900 kg/m^3. What length will you choose for your wire(in
asked by Anthony 
Trigonometry
Use the cofunction identities to find an angle x that makes the statement true: tan(2x140) = cot(x+5)
asked by Sandra 
Physics
In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms. What is the current during the strike?
asked by Anthony 
2nd grade
what is the wrong verb in this sentence? One person done something wrong?
asked by ronald 
Biology
2. Which statement best explains the effect of resources on population size? a. the exponential growth curve models the effects of limiting resources on population size b. Limited resources decrease the growth rate of population size c. Densitydependent
asked by mysterychicken 
physics
Two people are pulling a boat through the water as in the figure below. Each exerts a force of 600 N directed at a è = 20.0° angle relative to the forward motion of the boat. If the boat moves with constant velocity, find the resistive force exerted by
asked by Anonymous 
Physics
An electric catfish can generate a significant potential difference using stacks of special cells called electrocytes. Each electrocyte develops a potential difference of 110 mV. How many cells must be connected in series to give the 350V a large catfish
asked by Anthony 
Physics
An electric eel develops a potential difference of 460 V, driving a current of 0.80 A for a 1.0 ms pulse. Find the power of this pulse. Find the total energy of this pulse. Find the total charge that flows during the pulse.
asked by Anthony 
Physics
A 70 W electric blanket runs at 24 V. What is the resistance of the wire in the blanket? How much current does the wire carry?
asked by Anthony 
Chemistry
A sample of solid Ca(OH)2 is stirred in water at 30°!@#$%^&il the solution contains as much dissolved Ca(OH)2 as it can hold. A 100.mL sample of this solution is withdrawn and titrated with 5.00 X 10^2 M HBr. It requires 48.8 mL of the acid solution for
asked by Candice 
Chemistry
"Energy is released when 100 kg of steam at 150 degrees Celsius and standard pressure changes to water at 60 degrees Celsius. Calculate the total energy change". I used q=mct to find the energy required to change to 100 degrees Celsius. But now what??
asked by Stuck 
Physics
2.0x10^13 electrons flow through a transistor in 1.0ms. What is the current through the transistor?
asked by Anthony 
Scientific studies
A stone is thrown vertically upward with a speed of (a) How fast is it moving when it reaches a height of 11.0 m? (b) How long is required to reach this height? (c) Why are there two answers to (b)?
asked by Aly 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 % sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
Psychology
According to your text, which of the following is NOT a cause of conflict in groups? (Points: 4) defensive communication patterns or conflicts of interest differences in culture, personality, performance, or expectations poor communication patterns,
asked by lola 
chemistry
How many moles of TiCl4 can be produced when 9.00 mol Ti react with 4.00 mol Cl2?
asked by sara 
calculus
write equation of line that passes through the point 1)parallel to the given line 2)perpendicular to the given line pt (6,2) line 9x+9y=144 a)para 9x+9y=72 perp 9x9y=36 b)para 9x9y=36 perp 9x9y=72 c)para 9x+9y=36 perp 9x9y=72 d)para
asked by ashley 
4th grade math
Judy and Ramey together have 42 stuffed animals. Judy has 12 fewer animals than Ramey. How many stuffed animals does each girl have? I know that the answer is Ramey has 27 and Judy has 12 but I don't know how to write the equation for solving it. I figured
asked by Erik 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 % sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
calculus
Consider the solid obtained by rotating the region bounded by the given curves about the line x = 4. x= 4y^2 , x = 4 Find the volume V of this solid.
asked by JESSICA 
Data management
The camera club has 5 members, and the math club has 8 members. There is only one member common to both clubs. In how many ways could a committee of 4 people be formed with at least 1 member from each group?
asked by Emily 
physics
A man 2 m tall is walking away from a lamppost which is 6m tall at a rate of 2 m/s. Find the rate of change of a)the tip of the shadow b) the length of his shadow
asked by calculus 
US Government
Why was the separation of powers among the branches important to the founding fathers? Thanks so much! Ash
asked by ASH 
CALCULUS 2
Consider the solid obtained by rotating the region bounded by the given curves about the line x = 1. y = x, y = 0, x = 4, x = 6 Find the volume V of this solid
asked by HELP PLEASE! 
math
Which of the following is equal to the expression below?(75)3
asked by pretty grah 
12th grade
In a TV set, a beam of electrons is shot horizontally from the rear of the TV tube toward the screen with a speed about 1x10^7 m/s. If the distance from the rear of the TV set to the front is .5m, approximately how far do the electrons drop because of the
asked by Rae Lee 
Pchem
2 NO2(g) N2(g) + 2 O2(g) The ¥ÄH¡Æ for the reaction above is 66.4 kJ. The system is initially at equilibrium. What happens if NO2 is added to the reaction mixture at constant temperature and volume? (Select all that apply.) And here's the options. The
asked by JCY 
math
can your help me with my homework question? Gildas family goes on vacation. They travel 125 miles in the first 2.5 hours.If Gildas family continues to travel at this rate.how many miles will they travel in 6 hours? distance= rate + time
asked by pavleen 
chemistry
1) Calculate the specific heat capacity (J/g oC) of iron, if a 803 g sample lost 937.4 J of heat energy in going from an initial temperature of 5.50 oC to a final temperature of 2.90 oC. 2)Calculate the final temperature (oC) of a 243 g sample of water
asked by eng 
chemistry
What is the percent composition for Lucky Charms?
asked by Anonymous 
chemistry
When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. what is the molar heat of reaction,
asked by blasting 
math
8x+5y=184, xy=3
asked by kelsi 
English
Thank you very much for your last corrections! Could you possibly check these other sentences, too? Thank you. 1) In 43 AD the island was conquered by the Romans, who introduced their language and culture and built towns connected by roads. 2) In 409 the
asked by Franco 
chemistry
How many grams of gaseous required? If 0.260 mol of solid C and 20.0 g of solid TiO2 are reacted stoichiometrically according to the balanced equation, how many grams of gaseous Cl2 are required? 3TiO2(s) + 4C(s) + 6Cl2(g) → 3TiCl4(l) + 2CO2(g) + 2CO(g)
asked by Louis 
CALCULUS 2
Consider the solid S described below. A right circular cone with height 7h and base radius 2r Find the volume V of this solid
asked by HELP PLEASE! 
US Federal Government
How is popular sovereignty present in US Federal government? I know popular sovereignty means the people have the primary source of governmental authority (it also had to do with slaves states and how a state registered their vote as a slave state or not a
asked by ASH 
calculus
Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the yaxis
asked by rachel 
statistics
The US Senate consists of 100 senators, 2 from each state. A group of 5 senators is formed. 1.) how many groups are possible? 2.)how many are possible if no 2 senators from the same state can be chosen? 3.)what is the probability that no 2 from the same
asked by Jason Dunder 
Scientific studies
A helicopter is ascending vertically with a speed of 5.20m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take fo the package to reach the ground? [Hint: The package's initial speed equals the
asked by Aly 
Chemistry
why is it not necessary to wait for the entire sample of water to freeze in order to determine its freezing point?
asked by Anonymous 
Healthcare
Where can I find information about Managed Health Care? I am also interested in its pros and cons. Also, where can I find information regarding Reforma de Salud de Puerto Rico? (Puerto Rico Health Reform) (Besides Wikipedia...) I would greatly appreciate
asked by Mercedes 
Geography
Oct. 1: We're starting the last leg of our trip. Good thing! We're on our last legs! We sailed between Corsica and Sardinia to this Mediterranean port in the secondlargest country in Western Europe. We're about 75 miles south of the French border,but
asked by y912f 
12th grade
would you expect an H2Se molecule to have a shape similar to that of water? Give a reason for your answer?
asked by pv 
Physics
Two fully charged capacitors (C1 = 2.00uF, q1=6.00uC,C2=8.00uF, q2 = 12.0 uC). The switch is closed, and the charge flowed until equilibrium is reestablished, which occurs when both capacitors have the same voltage across their plates. Find the resulting
asked by Eric 
algebra
whats the answer to 3xy(2x^2+5xy7y^2
asked by sjdsdhska 
Math  average grade
Does anyone know how to calculate average point grade? I have the following data: grade D  2 students  4,9 percent grade C  6 students  14,7 percent grade B  12 students  29,2 percent grade A  21 students  51,2 percent What is the average grade?
asked by refy 
Chemistry
If 61.0 g of gaseous Cl2 and 25.4 mL of liquid CS2 are reacted stoichiometrically according to the balanced equation, how many milliliters of liquid CCl4 are produced? CS2(l) + 3Cl2(g) → CCl4(l) + S2Cl2(l)
asked by John 
physics
A freight train has a mass of 1.9 107 kg. If the locomotive can exert a constant pull of 7.5 105 N, how long does it take to increase the speed of the train from rest to 90 km/h in minutes?
asked by Anonymous 
MATH
iF YOU DIVIDE 30 BY ME, THE ANSWER IS 3 DOUBLED. WHAT NUMBER AM i >
asked by 3rd 
calculus
Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the yaxis
asked by rachel 
Physics
A car battery is rated at 90A hr, meaning that it can supply a 90A current for 1 hr before being completely discharged. If you leave your headlights on until the battery is completely dead, how much charge leaves the positive terminal of the battery?
asked by Anthony 
Scientific studies
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is how high is the cliff?
asked by Aly 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
English
Can you check the following sentences for me? Let me know how I can improve them, please. 1) England was invaded by some Germanic tribes, known under the name of (?) the AngloSaxons, then by the Vikings, who were defecate by the Normans. 2) As far as
asked by Franco 
Scientific studies
A toy air rocket is launched vertically with an initial velocity of 22m/s. (a) How long does it take to reach its maximum height (v=0m/s? (b) How long does it take to return to the ground (x0m)?
asked by Aly 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
chemistry
The reaction of zinc and chlorine requires 0.00624 mol of Zn and 0.0125 mol of Cl to react exactly to form zinc chloride. What is the mole ratio of Zn to Cl? What is the empirical formula of zinc chloride?
asked by Cheryl 
choir/language
what language is the song bonse aba in? im thinking zambian am i right?
asked by ali 
math
People weigh 6 times as much on Earth as they do on the moon.Mr.Marks weighs 180 pounds on Earth.How much would he weigh on the moon?
asked by Thanh 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
chemistry
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is 12.00 sucrose by mass and has d = 1.038 g/ml. Calculate the moles C12H22O12 percent in the mixed solution. Please provide steps
asked by anonymous 
calculus
Is this correct? 3ln(2)1/3ln(x^2+4) =ln(8/©ø¡îx©÷+4)
asked by ashley 
PreCal
Find all the soultions of the equation in the interval (0,2pi) sin 2x = sqrt3 /2 sin sqrt3 /2 is 4pi/3 and 5pi/3 in the unit circle 2x= 4pi/3 + 2npi 2x=5pi/3 + 2npi I do not know what to do at this point.
asked by Hannah 
Conversion
What is 14.586 Newtons converted to convert μN?? I thought it was 14,580,000 μN but I am not sure. Thank You
asked by engmath 
Chemistry
What is the molar heat of reaction? When 0.732 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 119C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC.
asked by Chris 
geography
how has the geography and history of the South helped create a diverse population that continues to grow?
asked by bex 
psychology
WHAT TASK COMPONENT DISTINGUISHES THE WECHSLER SCALES FROM SBIS?
asked by tea scott 
Chemistry
You were using H3PO4 to make an acid solution. What is the equivalent weight of H3PO4
asked by David 
english
the names of five books written by West Indian authors
asked by prashnildass 
calculus
Is the function f(x)=x²(4x)² even?
asked by ashley 
Trigonometry
Factor 1sin^3x
asked by Sandra 
Calculus 2
Find the volume of the solid obtained by revolving the graph of y=x(sqrt(1x^2)) over [0,1] about the yaxis. How do you write the integral?
asked by Jenna 
Chemistry
How does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions? How Do You Know?
asked by Laverne 
science
why does an air bubble rise to the surface of a glass of water
asked by pavleen 
Chemistry
What is the difference between organic acids and mineral acids?
asked by MJ 
algebra
Show a complete algebraic solution for the following: find 4 consecutive multiples of 11 with the sum of 2178
asked by Anna 
Math
1.Four coins are tossed.What is the probability of tossing all heads? 2.A card is chosen at random from a deck of 52 cards.It is then replaced and a second card is chosen.What is the probability of getting a jack and then an eight?
asked by Shadow 
Math
1.Four coins are tossed.What is the probability of tossing all heads? 2.A card is chosen at random from a deck of 52 cards.It is then replaced and a second card is chosen.What is the probability of getting a jack and then an eight?
asked by Shadow 
calculus
Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the yaxis
asked by rachel 
spanish
Are these the correct way to write the spanish sentences? :  in the morning tommy and children greet each other. : In the morning Tommy y los niños se salude. Everyone has fun when they play on the playground. : Todos se diviertían cuando ellos jugaban
asked by kat 
calculus
lim sinx as x approaches pie/r A) (2^1/2)/2 B) (2^1/2)/2 C) (2^1/2)/4 D) DOES NOT EXIST E) (2^(1/2))/4
asked by ashley 
physics
A train is travelling 20metres per second, accelerates at 0,5 cubic metres per second for 30 seconds.How far will it travel in this time?
asked by Lutho 
lit.
whats the setting for lamb to the slaughter
asked by gabby 
Spanish
are these the correct verb tense and conjugations? i have to use either preterite or imperfect. 1. they were looking  buscaban 2. they talked  hablaban 3. they thought  piensaron 4. they liked  gustaron 5. they needed  necesitaron 6. they asked 
asked by m 
physics
A football punter accelerates a football from rest to a speed of 8 m/s during the time in which his toe is in contact with the ball (about 0.16 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
asked by mel 
Psychology
THE Big Five dimensions of personality
asked by lola 
calculus II
Consider the solid obtained by rotating the region bounded by the given curves about the line y = 2. Y = 2+secx pi/3
asked by JILL 
Theories of counseling
what is the role of the therapist in a professional counseling session
asked by Sony 
physics
Two resistors, one 12Ohms and the other 18 Ohms, are connected in parallel. What is the equivalent resistance of the parallel combination?
asked by Rony 
math
the ratio of boys to girls in a science class is 5 to 4. If there are 8 girls in the class, how many boys are there?
asked by miguel 
Chem.
The experiment requires 1 mg per ml of iron (Fe3+). What mass of iron (III) nitrate hexahydrate (Fe(NO3)  6H2O) would you need to dissolve in 1 litre to achieve this value?
asked by Purple 
Math
1.(Y+2)/(Y^29) * (4Y+12)/(3Y+6) ÷ 8/(2Y6) = 2.(4XY)/(X+Y) * (X^2Y^2)/(16X^2Y^2) ÷ (2X2Y)/(16X+4Y) = 3.(X^225)/(2X+12) * (X^2+8X+12)/(4X20) ÷ (X^2+7X+10)/8X =
asked by Anonymous 
economics
what is the shift in the demand or supply curve for: The development of the sugar beet as a major source of sugar has lowered land rents on islands producing sugar cane
asked by Anonymous 
Business
I have tried to understand this in my book,but I do not. What methods can be used to identify data management issues?
asked by unsure 
French
Could you check these thanks Part 1 Directions: Vrai or Faux? 1.  Les passagers récupèrent leurs bagages avant d'embarquer. Answer: vrai 2.  Les passagers récupèrent leurs bagages après avoir débarqué. Answer: faux 3.  On
asked by Lisa 
geometry
i need an easier way to explain what angle side angles are and side angle side are? it's just so confusing :[
asked by Jenny 
chemistry
If 100 mL of a 3 M solution of sodium hydroxide is diluted to a total volume of 600 mL with distilled water, what will the final concentration of sodium hydroxide be?
asked by Brittany 
spanish
Choose the correct command form. No __________ uds.esos zapatos sucios en la casa! (llevar) A. llevan B. lleven C. lleve D. lleva
asked by bob 
arithmetic
how do i evaluate this limit: lim x tends to 5 x32x^2/1+3x
asked by Ren 
algebra
Use sets to verify that 8>6
asked by Anonymous 
geometry
What is the relationship between the volume of a prism and a pyramid with congruent base areas and heights?
asked by Corey 
math
reggig has a shelf that is 17 inches long.he has a set of books and each is 2 and1/2 inches thick how many books can be placed on the shelf?
asked by sunny 
math
In a game of Incan basketball, A points are given for a free throw and B points are given for a field goal, where A and B are positive integers. If A=2 and B=5, then it is not possible for a team to score exactly 1 point. Nor is it possible to score
asked by bart 
Science
I am reading a book called Angels and Demons by Dan Brown and in the book they talk a lot about antimatter. Does this exist or is it just fictional? If it does exist, is it really a weapon of mass destruction? They say in the book only 1 gram of antimatter
asked by Logan 
MATH
5n(3n+4)=6
asked by pavleen 
Math
which fraction is the greatest 1/2 2/6 3/4 3/8
asked by Nate 
chemistry
hund's rule tells us that element 116 will have what paired electrons?
asked by barbara 
Science
What tool/instrument is used to measure liquid volume?
asked by pavleen 
Science
What are everyday things that have salt and sugar soultions??????? plzzzzzzzzzzzzzz!!!!! help!!!!! urgent!!!!!
asked by Alisha 
Travel and tourism
I am not sure if the number of travelling tourists might increase or decrease because of language differences. Next, I have to explain why it would have this affect.
asked by AL 87 
PreCal
I do not know how to find the angle of the function sec 4x = 2 on the unit cirlce. I know I would be looking for 2 but I don't know where since it is sec.
asked by Hannah 
Chemistry
if you have 100 mg of CaCl2, how many moles of Cl do you have
asked by David 
PreCal (Please help)
Find all the soultions of the equation in the interval (0,2pi) sin 2x = sqrt3 /2 sin sqrt3 /2 is 4pi/3 and 5pi/3 in the unit circle 2x= 4pi/3 + 2npi 2x=5pi/3 + 2npi I do not know what to do at this point
asked by Hannah 
social studies
Define democracy and address the following in 200 to 300 words: What does American democracy mean to you as an individual? What are some of the criticisms of this style of government?
asked by kimberly 
english
making subjects and verbs agree using collective nouns. 1. The Advertising Council of Springfeild(is / are) sponsoring a student poster contest with cash prizes.
asked by cynamon 
MATH
2x1 = x1 ___ ___ 5 3
asked by pavleen 
math grd 10
station carries 15000 bus riders per day for a fare of 1.90. the city wishes to increase ridership in an effort to reduce car polltuion, while at the same time maximizing the transit revenues. tehe city conducted a survey and the results indicated that
asked by just wondering 
Social Studies
What is mercantalism? Is it like free trade? What were the corn laws? Please help me.
asked by John 
Chem1LB
When 0.917 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 3.76C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant
asked by Alex Le 
spanish
what does this say in english: Que usa la abuela?
asked by brooke 
Math
I need to simplify: [14 divided by (2)] divided by (1/3). How do I go about doing this? Thanks.
asked by B.B. 
Chemistry
What is the normality of 10 ml of an acid that took 25 ml of 0.25 N NaOH to reach pH 7?
asked by David 
Vocabulary
I need to come up with an short story using the following words: 1. August (adj) majestic; eminent 2. Thwarted (v) to prevent 3. Pallid (adj) pale, lacking color 4. Tableau (noun) [tabloh, tabloh] a picturesque grouping of persons or objects; a striking
asked by Anonymous 
math
on friday catlin ran 1 and 1/5 miles on sunday she ran 1 and2/5 miles.On the same two days her friend lee ran a total of 3 miles.How much father than catlin did lee ran?
asked by sunny 
precalc
Find a vector perpendicular to the plane containing the given points. (0,2,2), (1,2,3), and (4,0,1) My teacher was unable to finish the lesson, but I'd like to know how to solve this problem.
asked by James 
Precalculus
Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g X f)(9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or show how you arrived at that answer Thanks in advance by X i
asked by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Geography
#50. What were the factors that played a significant role in the collapse of Russian control over Eastern Europe? I'm still working on it. Any help would be appreciated
asked by y912f 
Geography
ase help me on these questions: 3. The soil of much of the steppe region of Northern Eurasia is a. very fertile and productive. b. lacking in minerals and unproductive c. too cold to produce much food d. heavily fertilized with chemicals to make it
asked by y912f 
MATH
6(2y3)=18
asked by pavleen 
Social Studies
Why do you think people in one culture someimes do not understand people in anoher?
asked by Samantha 
Socials Studies
What is a negative thing having a huge country (land territory)? It would make it harder to defend due to large area and little defence. Is my answer correct? Are there any other negatives? Thank you for your input.
asked by Ken 
Biology
Find a recent (from 2009 June onwards) and interesting article from the mass media with a theme that is related to topics learnt in Cell Biology. So far I've learnt Membrane Structure & function,Organelles and their structure & function, as well as their
asked by alex 
Psychology
What will you take from the material on "Group Conflict" that you will apply in your own life? How will you apply it? What are you already using/doing now that is effective? Give an example.
asked by lola 
math
Let x be the number of miles driven on 60 gallons of gas. By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. Show both the set up of the proportion and the steps to solve. Include units with your
asked by michelle king 
Precalculus
Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or sow how you arrived at that answer Thanks in advance
asked by Ariel 
physical chemistry PLEASE HELP!!!
how do i calculate a ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given E(mV) at 25 C and pH7 as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data
asked by lucy 
algebra
Yesterday your store earned $797.30just from the sale of cookies. Write and solve an equation that represents how many cookies were sold.
asked by shelly 
sociology
I have to give an example of social change on a mesolevel and macrolevel. Would the election of a biracial president be a valid example on the mesolevel or macro?
asked by george 
Math
Can someone show me how to do this problem? Find an equivalent expression without parentheses. (10m+80n32)= I'm not sure what to do. Thanks for the help.
asked by B.B. 
business
operational components of planning, sourcing, making, and delivering
asked by bobbie 
Calculus
If Y(s)=(1/16s^2)(1/5s) Find Y'(s).
asked by pete 
chemistry
In a reaction, 25.0 grams of magnesium are added to a beaker containing 75.0 mL of 2.00 M nitric acid, HNO3. Which reactant is limiting? Which is in excess?
asked by michelle 
Math
Use pointplotting to sketch the graph of each equation. How do you do these? y=x+2 xy=3 y=2x
asked by Courtney 
Psychology
Can you elaborate on the five broad domains or dimensions of personality which have been scientifically discovered to define human personality?
asked by lola 
math214
I need help I have not done math work over 15 years In the figure, L is parallel to m, and m(
asked by alicia 
MATH
BOB THREW 8 OF THE FISH HE CAUGHT BACK IN THE WATER. HE DIVIDE THE REST EQUALLY AMONG 4 PEOPLE. EACH PERSON GOT 4 FISH, HOW MANY FISH DID BOB CATCH?
asked by 3rd 
MATH
solve and graph: 3a8
asked by pavleen 
gyro
a gyro always points to a certain direction, but how is it made to point only towards north?
asked by mp 
calculus
lim sinx as x approaches pie/r
asked by ashley 
Math
Is 2x+3/y=1 Linear? Is 2x8y=0 Linear? What are A, B, and C
asked by Heather 
PreCal
what are the angles on the unit circle for the function tan x = 1?
asked by Hannah 
pre calc need help
A square is drawn inside a square. Find the area of the square as a function of the radius of the circle
asked by kate 
physics
why fans are placed at certain height below celing?
asked by karthika 
*Science*
Are meteroties large lumps of trapped rock/metal which actually reach the earth's surface?
asked by Sara 
susbstitution method
y=6x, y=x+2
asked by kelli 
algebra
y2x=8, 2y+x=1
asked by kenzi 
Math
1.(Y+2)/(Y^29) * (4Y+12)/(3Y+6) ÷ 8/(2Y6) = 2.(4XY)/(X+Y) * (X^2Y^2)/(16X^2Y^2) ÷ (2X2Y)/(16X+4Y) = 3.(X^225)/(2X+12) * (X^2+8X+12)/(4X20) ÷ (X^2+7X+10)/8X =
asked by Leslie 
Precalculus
Homework help quick given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(9) the options are 145/21 83/82 145/64 17/9 this is a homework question and it is due tommorow can u also explain or sow how you arrived at that answer Thanks in advance
asked by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
science
should humans strive to perserve Biomes or, Aquatic zoens?.
asked by cindy 
math
in a survey of 45 people,25 liked calypso and 37 reggae .some person liked both calypso and reggae calculate both reggae and calypso reggae only calypso only draw a venn diagram to show the information
asked by oraine 
math
in a survey of 45 people,25 liked calypso and 37 reggae .some person liked both calypso and reggae calculate both reggae and calypso reggae only calypso only draw a venn diagram to show the information
asked by oraine 
financial
a company has determined that its opitmal capital structure consists of 40 percent debt and 60 percent equity. given the following information, calculate the firms weigted average cost of capital rd=6% tax rate=40% p0=$25 growth=0% do=$2.00
asked by Anonymous 
spanish
are these the correct verb tense and conjugations? i have to use either preterite or imperfect. 1. they were looking  buscaban 2. they talked  hablaban 3. they thought  piensaron 4. they liked  gustaron 5. they needed  necesitaron 6. they asked 
asked by tdb 
physical chemistry
how do i calculate a ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given E(mV) at 25 C and pH7 as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data
asked by lucy 
math
determine whether (5,3) is a solution of 8x+3y=1
asked by Katelynn Renee 
business
Write a 200 to 300word description of a business scenario, either real or fictional, that depicts each of the following forms of business organization: • Jointstock company • Limited liability company • Partnership • Sole proprietorship
asked by Anonymous 
MATH
15a34=41
asked by pavleen 
Winter Olympics
List of songs sung at wo 2010 opening ceremony. Sites would be appreciated, I tried to search but couldn't find much.
asked by Sara 
computers
Databases are everywhere, both seen and unseen. What are some of the databases you interact with? Why do databases make information sharing so much more efficient and accurate among multiple users of the same data?
asked by Lourdes 
US History
What were some of the negative aspects of the new market economy after the Bank War? I'm completly lost!
asked by Lola 
writing skills part 1
i need help on these questions
asked by kay 
calculus
f(x) x+1 xor equal to 1 evaluate f(1) choices a) 0 b) 2 c) 3 d) 1 e) 1 I answered b) 2, got it wrong
asked by ashley 
Psychology
What will you take from this material on leadership and management and apply in your own life? How?
asked by lola 
crt 205
can you help me to identify any rhetorical devises and its function in this sentence "I trust you have seen Janet's file and noticed the "university" she graduated from
asked by dee 
college
Let x be the number of miles driven on 60 gallons of gas. By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. Show both the set up of the proportion and the steps to solve. Include units with your
asked by michelle king 
calculus
lim (x+10)/(x©÷100) x¡æ10 is this correct? 1/20
asked by ashley 
Algebra
1.(Y+2)/(Y^29) * (4Y+12)/(3Y+6) ÷ 8/(2Y6) = 2.(4XY)/(X+Y) * (X^2Y^2)/(16X^2Y^2) ÷ (2X2Y)/(16X+4Y) = 3.(X^225)/(2X+12) * (X^2+8X+12)/(4X20) ÷ (X^2+7X+10)/8X =
asked by Leslie 
anonymous
why am is my question getting ignored?
asked by Purple 
7th Grade Literacy
What are 3 IMPORTANT characteristics that a class president needs? Please answer!!
asked by Elizabeth 
physics
Q>At a speed of 60km/h U r driving a car in N direction suddenly u take a turn towards E direction at 73km/h. What is height of driver? Wats d ans?
asked by Tejas 
Geography
Please help me on these questions: 3. The soil of much of the steppe region of Northern Eurasia is a. very fertile and productive. b. lacking in minerals and unproductive c. too cold to produce much food d. heavily fertilized with chemicals to make it
asked by y912f 
math
y+2x=3, y+2x=4
asked by Ethan 
English
I forgot to include the following statements: Thank you very much in advance. 1) Yesterday I read the following news in the newspaper. 2) On Sunday morning a young man, who was drunk (?) and had spent his Saturday night in a disco, drove his car at top
asked by Franco 
PreCal
I do not know how to find the angle of the function sec 4x = 2 on the unit cirlce. I know I would be looking for 2 but I don't know where since it is sec.
asked by Hannah 
Math
3^3+58x(40)(13+9x8)=2262 Is this right? Thanks.
asked by B.B. 
algebra
y=7x, 2xy=8
asked by KAri 
Statistics
7 cards drawn from a deck without replacement what is probabilty one is a spade
asked by C.O. 
algebra
4(w2) less than or equal to 10?
asked by Anonymous 
math
10x + 5 (x + 4)= 230 x=_____
asked by pavleen 
Science
Explaining how ear defenders work using the big idea of energy transfer?
asked by Ellie 
hospitality
give 2 legal obilgations of manufacurers and employers with regards to cleaning agents
asked by Gemma 
MATH
2x1=3 ______ 5
asked by pavleen 
Social Studies
Why is no culture exactly like any other culture?
asked by Samantha 
MATH
Solve and graph 4n+1>17
asked by pavleen 
science
what does density mean
asked by pavleen 
science
what does mass mean
asked by pavleen 
health
what is the greatest nutrition problem in the world
asked by Anonymous 
Psychology
What in the material on "Groups" did you find useful? How will you apply it in your life?
asked by lola 
phi105
what ideas make them different from the way Eurpeans uniquely American movements? I really am stuck on this I need help please.
asked by trudy 
Maths (limits)
how do i evaluated these limits: lim x > 3 ((square root of x^2 +16) 5)/(x^2  3x) lim x> to infinity (2+ 100/x)
asked by Ren 
math
what are three equivalent fractions for 1/8, 7/10, and 11/12
asked by victoria 
math214
Please help me with this I do not understand this at all Find each of the following: 113°57 + 18°14, 84°139 27°45, 113°57 + 18.4°, 0.75° in degrees, minutes, and seconds
asked by alicia 
math
adria bought 2pounds of jelly bean she gave 2/3 of a pound to her cousin and 2/3 to her cousin .how many pounds of bean does adria have left?
asked by sunny 
accounting
what are all accounting formulas bcause i am having a hard time in mangerial
asked by jmijnfnkn 
Science Biology
How would i go about doing a dichotomous tree for beetles and how would i use it to do a dichotomous key for the beetles ? PLEASE HELP
asked by Shy 
PreCalc
f/g=? Given that f(x)=x^29 x and g(x)=x + 14
asked by Channing 
Math
Todd's wieght went from 220 lbs to 190 lbs and Cassidy's wighte went from 150 lbs t?o 135 lbs. Who had the greater percentage of weight loss
asked by Andrea 
math
using 1,2,3,4 only one time and must equal 29
asked by Nick 
MATH
M + 6 = 4XM M=? ON A COORDINATE GRIDE, WHAT IS THE DISTANCE FROM A(4,9) TO B (4,3)
asked by NICK 
CHEM
how can you tell if a molecule is polar or nonpolar? plz help!
asked by Anonymous 
math
Is 5/9 less then 1/2? Thank you!
asked by st 
math
Please help is 7/12 less than 1/2. Thank you!
asked by st 
math
Please help is 7/8 less than 1/2? Thank you!
asked by st 
math
Please help is 24/50 less then 1/2? thank you
asked by st 
math
nadia wants to use ribbon for a frame she needs 2 piece that are 3 and 5/8inches long and 2 pieces that are 5 and 3/8 inches long how many inches of ribbon does she need?
asked by sunny 
English
Whats a good topic for an Example essay?
asked by layla 
ethics
what are the pros and cons of the elderly in nursing homes having the right to autonomy?
asked by Anonymous 
math worksheets
why do elphants lift weight?
asked by johannah 
MATH
8x +5x9=30
asked by pavleen 
Science
what does volume mean
asked by pavleen 
Scientic notation
7,000,000,000
asked by pavleen