Questions Asked on
February 19, 2010

physicsenergy
A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How high does the projectile go
asked by nate 
english
sentences using similes that describe waiting for a bus
asked by bo 
chemistry
A 2.50 g sample of a hydrate of calcium sulphate losses 0.523 g of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate.
asked by thao nguyen 
Chemistry
Calculate the number of joules required to melt 57.4g of benzene at 5.5 degrees celsius? The heat of fusion for benzene is 9.87 KJ/mol and specific heat for liquid benzene is 1.63 J/g*deg)
asked by Jake 
Chemistry
How many electrons and how many protons are in the ion Cr6+?
asked by Jenna 
Chemistry
A certain vinegar is 6.02% acetic acid (HC2H3O2) by mass. How many grams of HC2H3O2 are contained in a 355mL bottle of vinegar? Assume a density of 1.01g/mL.
asked by lucylu 
Chemistry
The vapor pressure of CCl3F at 300 K is 856 torr. If 11.5 g of CCl3F is enclosed in a 1.0 L container, will any liquid be present? If so, what mass of liquid?
asked by Elizabeth 
chemistry
A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and airdried, has a mass of 0.375 g. The limiting reactant in
asked by Maria 
physics
A 12kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots a deer in the road, and slows to a stop in 12 s. Assuming constant acceleration, what is the minimum coefficient of static
asked by mary 
Chemistry really need help!
I am really struggling with these problems!! A reaction mixture that consisted of 0.20 mol N2 and 0.20 mol H2 was introduced into a 25.0 L reactor and heated. At equilibrium, 5.0% of the nitrogen gas has reacted. What is the value of the equilibrium
asked by Angelica 
College Physics
Two long, straight, parallel wires 8.0 cm apart carry currents in opposite directions. Use the righthand source and force rules to determine whether the forces on the wires are attractive or repulsive. a)Repulsive b)Attractive If the wires carry equal
asked by Lanise 
Biology
39. A) Identify a producer, herbivore, omnivore, and carnivore [in the ocean], explaining their roles in the path of energy flow. My answer: One producer in the ocean is algae; they provide energy. Krill are herbivores, which means that they feed off of
asked by mysterychicken 
Vector Calculus
A horizontal clothesline is tied between 2 poles, 20 meters apart. When a mass of 5 kilograms is tied to the middle of the clothesline, it sags a distance of 4 meters. What is the magnitude of the tension on the ends of the clothesline?
asked by Lalo 
science
how much work is done by a crane that lowers 1000N of material 150m?
asked by liz 
College Physics
Two long, parallel wires separated by 50 cm each carry currents of 3.0 A in a horizontal direction. Find the magnetic field midway between the wires if the currents are in the same direction. B= T Find if they are in opposite directions. B= T
asked by Lanise 
College physIcs
An electron travels at a speed of 4.0×104 m/s through a uniform magnetic field whose magnitude is 1.4×10−3 T. What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field are perpendicular? F= N What is the
asked by Lanise 
? on Chemistry
If you have a chemical reaction in equilibrium and add more of the product...what happens to the product's concentration, if it doesn't increase? Does it stay the same or decrease a little? I know the reactants concentration will increase and if it is an
asked by Connie 
physics
When a lead bullet hits a solid target at high speed, its entire kinetic energy is converted into heat. For simplicity, assume that all the heat is concentrated in the bullet rather than the target. If the bullet's initial temp. is 20` C, how fast should
asked by elisabeth 
British Literature
Hello. Can someone help me with scanning a poem? 1. A. Scan the following lines from Mary, Lady Chudleigh's poem "To the Ladies". Mark the syllables, separate the feet with short vertical lines, and indicate the rhyme scheme Him still serve, him still
asked by Tamir 
physics
Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle, is its speed, and η is the coefficient of viscosity of the fluid medium. (a) Estimate the terminal speed of a spherical
asked by mike 
College Physics
A solenoid is wound with 290 turns per centimeter. An outer layer of insulated wire with 200 turns per centimeter is wound over the solenoid's first layer of wire. When the solenoid is operating, the inner coil carries a current of 10 A and the outer coil
asked by Lanise 
physics
Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle, is its speed, and η is the coefficient of viscosity of the fluid medium. (a) Estimate the terminal speed of a spherical
asked by katie 
chemistry
What is the original molarity of a solution of formic acid (HCOOH) whose pH is 3.74 at equilibrium? ka =1.7x10^4
asked by rodrigue 
physics
A skydiver, who weighs 650 N, is falling at a constant speed with his parachute open. Consider the apparatus that connects the parachute to the skydiver to be part of the parachute. The parachute pulls upward with a force of 620 N. Consider the skydiver
asked by jared 
physics
A 12kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots a deer in the road, and slows to a stop in 12 s. Assuming constant acceleration, what is the minimum coefficient of static
asked by mary 
Chemistry Question!!
When 1.00 g of gaseous I2 is heated to 1000. K in a 1.00 L sealed container, the resulting equilibrium mixture contains 0.830 g of I2. Calculate Kc for the dissociation equilibrium below. I2 2 I What I did was converted the initial I2 into moles then
asked by Trixie 
Physics
Say what energy changes are taking place: a)clockwork toy b)boy kicking soccer ball c)boiling kettle on a gas ring d)person walking upstairs What are the wasted energy in a) b) c) and d)?
asked by Amir 
Chemistry
The initial pressure of BrCl(g) in a reaction vessel is 1.6 mbar. If the vessel is heated to 500 K, what is the equilibrium composition of the mixture? See this table for data on the reaction. P Br2 ? mbar PCl2 ? mbar P BrCl ? mbar
asked by Angelica 
Vector Calculus
A horizontal clothesline is tied between 2 poles, 20 meters apart. When a mass of 5 kilograms is tied to the middle of the clothesline, it sags a distance of 4 meters. What is the magnitude of the tension on the ends of the clothesline? [ I am not
asked by Lalo 
Chemistry
A chunk of copper weighing 18.9 grams and originally at 97.63oC is dropped into an insulated cup containing 77.9 grams of water at 22.44oC. Assuming that all of the heat is transferred to the water, the final temperature of the water is what in C.
asked by Jackson 
Calculus
The circumference of a sphere was measured to be 88000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area. Estimate the relative error in the calculated surface area.
asked by John 
math
The fixed costs of oreparting a business are the costs include rent, fixed salaries, and costs of buying machinery. The variable costs of operating a business are the costs that change with the level of ouput. Variable costs include raw materials, hourly
asked by liz 
Physical Chemistry
When 1.00 g of gaseous I2 is heated to 1000. K in a 1.00 L sealed container, the resulting equilibrium mixture contains 0.830 g of I2. Calculate Kc for the dissociation equilibrium below. I2 2 I What I did was converted the initial I2 into moles then
asked by Trixie 
Calculus
Evaluate the limit using L'Hospital's rule if necessary. lim as x goes to +infinity x^(6/x)
asked by <3 
physics
A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward acceleration is 3.5g. (a) How does the magnitude of the force exerted by the airplane seat on the pilot at the bottom of the arc
asked by mike 
Chemistry
The liquid contains 66.6c, 11.2% H and 22.2% 0. What is its molecular formula? How do i figure that?
asked by Courtney Venable 
classroom instruction 9not sure if i am right)
• Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you, such as secondgrade language arts or fifthgrade science. i am doing physical education in wisconsin. this is what i have i
asked by scooby 
Biology
[Continued from my last post] B) Explain where a detritivore and a decomposer could enter this path. Explain what they feed on on the systems. My answer: Detritivores include worms and fungal and bacterial decomposers. Bacteria and fungi are known as
asked by mysterychicken 
childcare
Please I need to help about Competency Goal #6  commitment to professionalism. I want to know some examples of it.
asked by Rosa 
quantum physics
To what speed must an electron be accelerated for it to have a wavelenght of 3.0cm?
asked by john 
preAlgebra
Sorry, struggling through preAlgebra .. :( .. How do i figure out 5x = 20 ?
asked by Emily 
Geography
#50. What were the factors that played a significant role in the collapse of Russian control over Eastern Europe? my answer: There were a few factors that played a significant role in the collapse of Russian control over Eastern Europe, corruption and
asked by y912f 
college
If the 1 kg standard body has an acceleration of 2.00 m/s^2 at 20.0 degrees to the positive direction of an x axis
asked by Anonymous 
College Physics
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 4000 N/C and 20 mT,respectively. Find the speed of the particle if it is a proton. v= m/s Find the speed of the particle if it is an alpha
asked by Lanise 
college algebra
'A mason can build a wall in onehalf the time it takes an apprentice. Together they build the wall in 12 hours. How long would it take the apprentice working alone to build the wall?' This needs to be worked using a table. The column headings are 'Time
asked by Brenda 
Chemistry
I need to find heat of vaporization. The liquid starts to vaporize at 110 degrees C and there is 10 g of the liquid. I don't think it matters but it is heated at 60 kj/minute. Would it just be amount multiplied by the temp when it starts to vaporize? I
asked by jp 
ENGLISH
How does Mark Twain show satire in "Experience of the McWilliamses With membranous croup & The McWilliamses And The Burglar Alarm? specific lines may help...thanks
asked by Rose7 
Geometry
How do the axes of rotational symmetry of an octahedron compare to the axes of rotational symmetry of a cube?
asked by Nicole 
CHEM
Select all cases where the substance shown has a molecular dipole. CH4 methane CH3CH2CH2CH3 butane ICl iodine chloride H2Se hydrogen selenide CH3CHO acetaldehyde CH3OCH2CH3 methylethylether None
asked by Arron 
social studies
can you please compare and contrast ; direct democracy and representative democracy?
asked by Sally 
Chemistry (conceptual question)
If you have a soln of HNO2 at equilibrium HNO2 (aq) + H20 (l) H3O+ (aq) + NO2 (aq) and water is added, is there a shift in the equilibrium? Can someone explain why to me? I have a hard time understanding the concept of equilibrium and what is part of the
asked by Tommy 
Maths
When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= 10t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in meters/sec and “k” is the initial height
asked by Anonymous 
Maths Probabilty
1. From a bag containing 5 gold and 3 red marbles that feel identical, one is drawn at random. If the first marble drawn is not replaced before the second is drawn: i) Explain why the probability of picking the second gold marble is 4/7 and why the
asked by Kesha 
Chemistry
It was mentioned that the rates of many reactions approximately double for each 10 °C rise in temperature. Assuming a starting temperature of 25 °C, the activation energy would be_____________ in kJ mol1, if the rate of a reaction were to be twice as
asked by Pavleen II 
Calculus
Evaluate the indefinite integral. (e^7x)/(e^14x+16)dx
asked by <3 
Probability II =)
You are shown five cards, Three have X written on them and two have Y. The cards are turned over so the X abd Y are no longer visible, and shuffled/ One card is picked and laid face up on the table. It is an X. If the remaining cards are shuffled and
asked by Kesha 
Chemistry
Two more questions. To prepare a sample of hydrogen gas, as studen reacts zinc w/ hydrochloric acid. The hydrogen is collected over water at 22c and the total pressue is 750 mm hg. What is the partial pressue of H2?
asked by Courtney Venable 
Physics 2
the escalator that leads down into a subway station has a length of 30.0m and a speed of 1.8 m/s relative to the ground. student is coming out of subway by running up the wrong direction on escalator. local record time for this is 11s. relative to
asked by ShaD 
Biology
19. Which is NOT a general characteristic of plants? a. use oxygen to make usable energy b. primary producers c. have specialized cells d. cell walls composed of cellulose I think it might be either A or B... 20. Which of the following are characteristics
asked by mysterychicken 
physics
how much heat is required to vaporize 7 grams of ice initially at 0 degrees celsius when the latent fusion of ice is 80 cal/g, the vaporization of water is 540 cal/g, and the specific heat of water is 1 cal/(g x C)?
asked by elisabeth 
physics
A bike is hanging from a hook in a garage. Consider the following forces. (a) The force of the Earth pulling down on the bike. (b) The force of the bike pulling up on the Earth. (c) The force of the hook pulling up on the bike. (d) The force of the hook
asked by jared 
Cemistry
If you have a chemical reaction in equilibrium and add more of the product...what happens to the product's concentration, if it doesn't increase? Does it stay the same or decrease a little? I know the reactants concentration will increase and if it is an
asked by Connie 
AED
Identify how each of the five core principles of NCLB 2001—strong accountability, expanded flexibility and control, methods based on scientific research, expanded options for parents, and highly qualified teachers—might affect diverse learners, both
asked by GGIFT 
accounting
The following information is for X Company for 2009: Direct materials purchased $ 36,484 Direct materials used 34,013 Direct labor 14,439 Overhead 25,464 Work in Process, January 1, 2009 4,118 Finished Goods, January 1, 2009 2,326 Work in Process, December
asked by w 
Chemistry
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 112C 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 Adam 
ethinic
I don't think this is totally a homework question, but maybe someone can help. I have to do a PowerPoint presentation soon and have to add speaker notes. Well I have PowerPoint 97....How can I add the speaker notes in that? I know how in 07 but I guess
asked by stephanie 
s.s.
American's worst period of economic hardship in its history.
asked by neka 
Rhetoric Writing
Hey I am doing a Process Analysis assignment. I chose "How a magician saws a woman in half" I need some help in finding information for this topic as it relates to the stages and steps taken in doing this magic. Also i will like to find some visual of how
asked by Ren 
Math
Garden Area Problem. A designer created a garden from two concentric circles whose equations are as follows: (x+2)^2+(y6)^2=16 and (x+2)^2+(y6)^2=81 The area between the circles will be covered with grass. What is the area of that section? How do you do
asked by rmz 
math
rob & freddie have 15 cds between them. rob has twice as many as freddie. how many cds does rob have
asked by preston 
nutrition
After World War II, farming, fishing, and other food production activities became large scale enterprises which caused
asked by kelli 
7th grade
if 60 grams of potassium chlorate is dissolved into 100cm3 of water at the temperature of 60 degrees celsius is the solution saturated unsaturated or supersaturated?
asked by sean 
Math
Store A usually sells a jacket for $72 but today I can buy it for $40. Store B usually sells the same jacket for $38 but today I can buy it for $18. Which store is offering the greatest percentage off the origanal price ? In which store would you buy the
asked by pavleen 
11th grade
how do you solve a dilution problem, this is chemistry
asked by marisa 
math
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
asked by thommini 
business
Provide an example of one business in your area that has demonstrated accountability to people, community, and to its environment.
asked by Anonymous 
Chemistry
I am designing a lab right now, and I want to know: if I fill a beaker with cold water from the tap and submerge a sample of solid metal, after a couple of minutes, the metal should be the same temp as the water, right? Would it be quicker to use hot water
asked by Stuck 
biology 102
A prediction (educated guesses as to what the potential results may be) for each experiment listed below: 1) kneejerk reflex 2) pupillary reflex (shield left eye, shine bright light into right eye, observe pupils) 3) 2point threshold 4) temperature
asked by David 
lab
We have to build our website using the sites that are free. Can you give me some good sites to create my own website?
asked by keysha 
math
Identify the slope and the yintercept for the line associated with the equation. 5x+20y=60 20y=5x+60 20=5x+6020 y=5x+40 is that the right equation?
asked by rmz 
math
The Egg Problem. A certain zoo kept records of the relationship between the weight of a mother ostrich and the weight of her egg. Data for three birds is shown in the next table. a. Estimate the weight of an egg from a mother ostrich weighing 175 lbs. b.
asked by rmz 
Physical Chemistry
Calculate the equilibrium constant at 25°C and at 100.°C for each of the following reactions, using data available in Appendix 2A. Remember that the organic molecules are in a separate section behind the organic molecules in Appendix 2A. (a) HgO(s) Hg(l)
asked by Trixie 
maths
The sum of the coefficients in the expansion of (1  2x +5x^2)^n is a and the sum of the coefficients in the expansion of (1 +x)^2n is b.Then (A) a=b (B) (xa)^2 + (xb)^2 =0 (C) (sin a)^2 + (cos b)^2 =1 (D) ab=1 Ans. A,B,C But How???
asked by mohit 
Chemistry PLEASE!!
how do i calculate a concentration ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given at 25 C and pH7 E(mV) as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i know im supposed ot use the nernst equation i just
asked by lucy 
Chemistry
If I'm going to transfer a piece of metal (a reasonable size) from a beaker of boiling water into a calorimeter, what should I use? Tweezers are too small...I can only think of a beaker clamp, but they are, after all, for beakers.
asked by Stuck 
s.s.
The large movement of African Americans from the south to the north.
asked by neka 
chemistry
How many moles are in 52.3 grams of CaSO4?
asked by Jessica 
Trigonometry
Show that cos M(1/cosMcosM) is equal to sin^2M
asked by Laly 
college
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Further suppose that the number of cars driven on 1st Avenue can be modeled
asked by Jeffery 
Calculus
I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of the function when N={whatever integer}? And what happens to the graph and to the value of the integral as N approaches infinity?
asked by Paul 
Chemistry
When 0.689 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 112C 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 Adam 
classroom instruction (final)
I choose fourth grade Physical Educational standards in my state which is Wisconsin. Leading an Active Lifestyle Performance standards By the end of fourth grade the students will be able to identify several less violent to energetic, strong, and active
asked by scooby 
Algebra
The function H described by H(x)= 2.75x+71.48 can be used to predict the height in centimeters, of a woman whose humerus is x cm long. Predict the height of a woman whose humerus is 39 cm long.
asked by Eleana 
Chemistry
Select all cases in which the attraction between units in the solid can best be classified as electrostatic bonding forces. CsBrO3 N2O3 Cr(OH)2 Ca3(AsO4)2 Rn Ar None
asked by Scott 
physics
What is the weight of a 0.2kg toy on or near the surface of the Earth? (g = 9.8m/s2? in newton
asked by john 
Physics
I need to sketch a 45 deg  45 deg  90 deg triangle and indicate the lengths of each side assuming the hypotenuse is = to 1 meter
asked by Lisa 
science
Secretin a) stimulates the release of alkaline products by the pancreas b) stimulates the gastric juices c) is released by the salivary glands d) decreases the stomach's churning activity e) stimulates the release of digestive enzymes I think that the
asked by sammi 
chem
Potassium chloride crystallizes with the rock salt structure. When bathed in Xrays, the layers of atoms corresponding to the surfaces of the unit cell produce a diffracted beam of Xrays (¥ë=154 pm) at an angle of 6.97¨¬. From this, the density can be
asked by meherpreet 
chemistry
What is the mass of 0.425 moles of CaCl2? The molar mass of CaCl2 is 110.98 g/mol.
asked by Jessica 
math
An angle less than 90 degree is called
asked by PAVLEEN 
science
what is the proper term whenn your being used as a human guneia pig? i can not remember please help???????? thanks
asked by bobbi 
Algebra
When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= 10t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in meters/sec and “k” is the initial height
asked by Martha 
Science
If blackbodies emit over all wavelengths will x rays be emmited by my cooker element?Which emits mostly in the infrared?
asked by nichola 
chemistry
The pH of a 1.2 M solution of an unknown weak base is 10.65. What is the Kb for the base?
asked by rodrigue 
Chemistry
Dear DrBob222 !!! Would you please help me answers the question that I posted. I really don't understand and need help! Please, Thanks
asked by Ashley 
choir
i am taking intro to music what words are good to use to critique a choir concert
asked by lisa 
Psychology
I need 2some goog sites with methods for studying cerebral lateralization.
asked by Melikah D. 
math
integration of sqrt of tan(x)
asked by prasenjit baidya 
chemistry
how do you balance sucrose reacts with oxygen to yield carbon dioxide and water?
asked by Anonymous 
Algebra
The equation y=1777x+27,153 can be used to predict the number of gun deaths in the US x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=6 corresponds to 2006. and so on. Predict the number of gun deaths in 2006 and 2007. Then
asked by Eleana 
anthropology
Navajo Witchcraft
asked by candy 
MATH
what is density I think it is the amount of volume in an object
asked by pavleen 
physics
my teacher wasn't in school and this assignment is due @ 7am!!!!! The density of gasoline is 730 kg per cubic meter. One gallon of gasoline occupies .0038 cubic meters. Gasoline's volume expansion coefficient is .00096` C (^1). How many extra kilograms of
asked by elisabeth 
physics
thanks again to anyone who can possibly help!!!!! i wish i had a book or notes or something about this kind of stuff :( The linear expansion coefficient of glass is 9 x 10^6 (`C)^1. An automobile windshield has dimensions of 59 cm by 390 cm. What minimum
asked by elisabeth 
music
what does an A note look like?
asked by Cookie 
math
if john has 56789 pens and steve has 23 times that amount how many does steve have?
asked by chanquilla 
math
How many rectangles will fit about a point when tessellating the plane? How do you know?
asked by nicole 
Enlish or grammar
What is the tthe difference between General information and Specific information?
asked by Emma 
PreAlgebra ... again :(
How do i go about finding the integers of a product and quotient ... like, product of 20 whose quotient is 5 ..... thanks again
asked by Emily 
math
What happens to the value obtained for the slope if the coordinates of the two ordered pairs aren't subtracted in the same order? what is an example. All I know is that you would get the wrong slope for the ordered pairs, I do not know why. Can anyone
asked by rmz 
physics
What is the weight of a 0.2kg toy on or near the surface of the Earth? (g = 9.8m/s2? in newton
asked by john 
math
The width of a rectangle is fixed at 24 cm. What length will make the perimeter greater than 88 cm? I got 21 is that correct?
asked by Katelynn Renee 
Math
(1.6x10^5)(12.7x10^4) I think it is 20.33x10^1
asked by pavleen 
sicial studies
i have been all through my social studies book trying to find this answer could you please help me?
asked by neka 
math
9 bull elephants and 3 female elephants are sharing peanuts.First,every bull gives an equal amount of peanuts to every frmale.Then, every female gives a different, equal amount to every bull. Each elephant then possessed the same number of peanutsthe
asked by someone 
s.s.
This was the plan that Franklin D. Roosevelt created to assit the U.S. after the deoression. was it the new deal.
asked by neka 
history
if you are riding a horse do you live or work in the peidmont region,why or why not?
asked by chanquilla 
calculus
Find f'(a) for f(x)=13x/3x+1
asked by kayla 
Algebra
Biologists want to set up a station to test alligators in the lake for west nile virus. Suppose that the cast for such a station are $2,500 for set up costs and $3.00 to administer test. a. Write an expression that gives the total cost to test x animals.
asked by Carson 
science
i need to write a poem about nitrogen. please help. i'm not good at poetry.
asked by lynn 
Accounting
What is the effect on income before taxes if the aging category is changed on an accounts receivable by issuing a new invoice to customers with a revised date?
asked by Alex 
Geometry
Show that Euler's formula holds for a right pentagonal prism.
asked by Nicole 
survey math
11110 base 2 = (?) base 10
asked by brad 
SCI/275 ENVIRONMENTAL SCIENCE
three freshwater and three ocean water resource challenges
asked by Anonymous 
Eth125
I just wanted to know if anyone has a course syllabus for this class. I start this class very soon and I would like to get a head start. Thank you so much.
asked by Christine 
Eth 125
Post a 200 to 300word summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue, and explain why you think there is a connection. Consult the National Congress of
asked by 
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 
english
I need help in doing a sentence outline on the leaglazation of marajuana
asked by christy 
Math
What is the fromula to calculate the volume of a washer?
asked by Tom 
6th grade
need help with thermal energy any one can help me
asked by Darneisha 
French
Could you check this please thanks Part 1 Directions: Au téléphone: Complétez en utilisant les verbs entre parenthèses. 1. Je  dans la cuisine quand le téléphone . (travailler, sonner) Answer 1: travaillais Answer 2: sonné 2. Je
asked by Lisa 
trig
DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0
asked by NHLANHLA 
Algebra
Can you tell me what this sign means ^
asked by mike 
MATH
An angle more than go but less than 180 is called
asked by PAVLEEN 
MS. SUE/english
dear ms. sue what is a propositional phrase
asked by alison 
Chem
Osmotic Pressure.. If the height of the column is 6 cm what is the osmotic pressure of the sugar solution in g/cm2 Assume the density of the solution is 1.01 g/ml.. Beaker of water with beaker of sugar solutution with semi permeable membrane
asked by donna 
English
I forgot to include the following statements. Thank you very much for your help. 1.On the seventh of January my holidays were finished (or finished, had finishes) and I went back to school. 2.On New Year’s Eve I was invited to a party at a friend’s
asked by Franco 
Chemistry
This might seem silly but in the rxn O^2 + H2O > 2OH, can OH behave as both the conjugate acid and the base?? Or is it one or the other?
asked by Angelica 
Literature about Marian Anderson
Can you give me some examples of how she paid her past karma (basically how she learned from it) I need at least 4. Please help!!
asked by Rae Rae 
Physics
I have studied the instruction manuals of 3 Hi Fi separates units. They are: CD player Cassette tape player Cassette tape player The outputs of these units are quoted respectively as: 2.1 V RMS 150mV/5 kilo ohms 0.775 V (0 VU) Optimum load impedance more
asked by Mike 
Math
Finding the equation of the least square line.Ex=110, Ex^2 =1540, Ey=468, Ey^2=22,434, Exy=5524. The answer is Y=1.139x+34.27. I can figure out the 1.139 but not the 34.27. Pls Help
asked by Marie 
Maths
 In a normal pack of cards, write down the odds against picking each card. a) a diamond b) a jack c) a red 10 d) a black picture card e) a picture card 1. A die is rolled 3 times. Estimate the chance of 2 or 3 no.'s being the same. Find the probability
asked by Kesha 
childcare
Ms. Sue Thank you so much.
asked by Rosa 
social studies
im sorry I for got to type the answer.This happened on october 29,1929 known as the black tuesday.
asked by neka 
chemistry
Calculate the interplanar spacing (in picometers) that corresponds to defracted beams of X rays at è = 24.0o, if the X rays have a wavelength of 127. pm. Assume n = 1 _____pm
asked by girllll 
math
Please help with all of these: 3 out of 32 10 out of 30 20 out of 29 3 out of 35 9 out of 34 24 out of 33 17 out of 19
asked by Mattie 
algebra
a 15in. tv set has a width of 12 inches. what is the height?
asked by Anonymous 
English
Can you please check the following statements with me? Thank you very much. 1.I suggested to my mum what she should buy for my father as a Christmas present. 2.My dad made (prepared) the Christmas lunch.What did he prepared for lunch? 3.On Epiphany I
asked by Franco 
math
Find f'(a) for f(x)=4x3+1x f'(a) =? please please help. i just need to figure out how to do it once and then i can do the rest of my problems
asked by kayla 
Math
How would you set this to y=? x4y=5
asked by Jessica 
math
how do you find the slope
asked by sydney 
American Government
if there is collision between the president and congress,can congress restain the president in foreign policy making?
asked by Diana 
st. marry
how to solve it [23(23)to the power 3]hole to the power 3
asked by sonu 
childcare
thank you Ms Sue,but I need to know how to make an essay about it. To maintain a commitment to professionalism.
asked by Rosa 
financial
Compute the worth of Arcadia Hospital in 2005 using rules of thumb, adjusted book value, and discounted cash flow valuation (for this final method, use the table provided). Assume the cash flow for 2005 is the same as 2006. ($655 million) 1) Rules of
asked by Tiffany 
business
how market prices ration goods and services among those who want them? 2 page paper
asked by Mike 
MATH
what percent is 3 out of 35 what percent is 9 out of 34 what percent is 24 out of 33
asked by Mattie 
s.s.
Charle's Lindbergh had one name"the Spirit of St Louis"
asked by neka 
Math
Give the equation of the circle with the given center and radius: Center at (1, 2) Radius is 1/2 I know that you are to use either (xh)^2+(yk)^2=r^2 or x^2+y^2=r^2, but I do not know how to do this? Can anyone help
asked by rmz 
Math PreAlgebra
What is the value of 1 raised to a negative exponent? ... Maybe an example would help me better understand. Thank you very much ... I know it is like a fraction
asked by Emily 
s.s.
what program hired young black men to plant trees and build parks?
asked by neka 
s.s.
these rates increased after the great depression.
asked by neka 
math
so is 9 out of 34 26.4%
asked by Mattie 
Math
A line parallel to 4x=3y13? I came up with m=4/3 y3=4/3 + 16/3 after working problem got ans y= 4/3x+25/3 confused???
asked by Maria 
math
(.0180x10^8)/(.36x10^3) i think it is .009470x10^5
asked by pavleen