Questions Asked on
March 17, 2010

physics
Two 72.0kg hockey players skating at 7.00 m/s collide and stick together. If the angle between their initial directions was 130 degrees , what is their speed after the collision?
asked by Kyle 
Calculus
HELP PLEASE Find the minimum distance from the point (4, 2) to the parabola y^2=8x
asked by John 
Chemistry
The density of an aqueous solution containing 10% of ethanol (C2H5OH) by mass is 0.984 g/ml. A) Calculate the molality of this solution. B) Calculate its molarity. C) What volume of the solution would contain 0.125 mol of ethanol.
asked by Hilavidpreet 
math
The amount of gold jewelry and other products is measured in karats (K), where 24K represents pure gold. The mark 14K on a chain indicates that the ratio between the mass of the gold in the chain and the mass of the chain is . If a gold ring is marked 18K
asked by kirk 
College Chem
When a0.269g sample of a barium compound was treated with excess H2SO4, 0.0891g of BaSO4 formed. What is the percentage of Barium in the compound?
asked by London 
math
Bill got 52 correct answers on an 80question test. What percent of the questions did he answer incorrectly?
asked by kirk 
personal finance
. Rita Smith owns 220 shares of Jefferson Carpet Mills.For the last calendar quarter,Jefferson Carpet Mills paid dividend of $0.47 a share.What is the total amount Rita received in her dividend check for this quarter? a)$0.47 b)$47 c)$94 d)$103.40 IS A
asked by vedrana 
PHYSICS
A 120kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 450 N. For the first 11 m the floor is frictionless, and for the next 11 m the coefficient of friction is 0.30. What is the final speed of the crate?
asked by REESE 
math
Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.
asked by dan 
precalculus
A missile is fired at an angle of 75 from the horizontal. At one point, its speed was 900 mph. Find its horizontal velocity in miles per minute. (Round to the nearest hundredth.)
asked by brenden 
precalculus
A man who can row in still water at 3 mph heads directly across a river flowing at 7 mph. At what angle to the line on which he is heading does he drift downstream and at what speed does he drift downstream?
asked by ruca 
Calculus Optimization
An electric utility is required to run a cable from a transformer station on the shore of a lake to an island. The island is 6 km from the shore and the station is 12 km down the shoreline from a point opposite the island. It costs $4000/km to run the
asked by John 
personal finance
Which of the following statements is correct? a)Stock is a form of debt capital b)Stock must be repaid at maturity c)Bonds are a form of debt capital d)Bonds do not have to be repaid at maturity IS C CORRECT ANSWER?THANK YOU:))))
asked by vedrana 
statistics
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores
asked by Whitney 
College Chem
Impure sample of table salt that weighed 0.8421g, when dissolved in water and treated with excess AgNO3, formed 2.044g of AgCl. What is the percentage of NaCl in the impure sample? Do I need the molecular weight to start this equation? Where do I start?
asked by London 
Economics
Hello, I was considering to drop economics since i find it useless. My friends and my parents say its an easy subject and that if i drop it i will have one less subject which looks bad on my permanent reconrd. i find it very hard to concentrate in
asked by Laura 
math
Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.
asked by ruca 
APChem
"The osmotic pressure of a saturated solution of strontium sulfate at 25C is 21 torr. What is the solubility product of this salt at 25C (Hint: calculate molarity from the colligative properties eqn of osmotic pressure and use it in the equilibrium
asked by Kiki 
physics
1.A hot air balloon is rising upwards at a constant velocity of 5m.s when the balloon is 100m above the ground, a sandbag is dropped from it. 1.1 what is the magnitude of the acceleration of:a)The hotair balloon while the sandbag is in it.b)The sandbag
asked by Tebogo 
physics
A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic
asked by mike 
Physics Rotaional Kinetic Energy
A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic
asked by Anonymous 
Classroom management techniques
3. What does the word “withitness” mean? A. Providing activities that challenge students. B. Doing two things at the same time. C. Knowing what’s going on in all parts of the classroom. D. Providing smooth transitions between lessons.
asked by Deya 
MATH
Two extension ladders are leaning at the same angle against a verticl wall. The 3m ladder reaches 2.4m up the wall. How much farther up the wall does the 8m ladder reach?
asked by Anonymous 
math
Find the missing angle 45 degree and 106 degree
asked by Lynn 
math
A taxi company charges riders a fixed charge of $2.50 plus $1.50 per mile. How many miles must a rider go to have an average cost per mile of $2.00?
asked by Anonymous 
Math
The sides of a triangle have the equations y=1/2x+1, y=2x4, and y=3x9. Verify that the triangle is an isosceles right triangle. Algebraic solutions only!
asked by Kristen 
physics
You are holding a shopping basket at the grocery store with two 0.69kg cartons of cereal at the left end of the basket. The basket is 0.90 m long. Where should you place a 1.8kg half gallon of milk, relative to the left end of the basket, so that the
asked by Kyle 
chem
how many atoms of C are in 2 moles of sucrose C12H22O11? please help
asked by suzie 
chemistry
prism has total surface area of 360 m2 and volume of 60 m3. If the length, width, and height are reduced to half their original sizes, what will be the following?
asked by ryell 
statistics
In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36 corresponds to z = 0.50. Find the mean and standard deviation of the population.
asked by Teresa 
math
111 evaluate
asked by JO JO 
Ap Chemistry
How can NH3 be a ligand but NH4+ is not a ligand??
asked by Marta 
Relgion
The world St. Paul lived;St. Paul’s conversion. How did each influence his understanding of his mission and ministry? ·
asked by Anonymous 
algebra
Bayside Insurance offers two health plans. Under plan A ,Giselle would have to pay the first $190 of her medical bills,plus 30% of the rest.Under plan B ,Giselle would pay the first $220, but only 20% of the rest. For what amount of medical bills will plan
asked by Terry 
Biology
How does an increased carbon dioxide concentration in the blood affect expiration and inspiration?
asked by Mina 
Organic Chemistry 1
Write an equation for the reaction of sodium bicarbonate with aqueous sulfuric acid to produce carbon dioxide.
asked by Brianna 
Calculus
derivative of cot(6/x)
asked by Anonymous 
Math
use the sum and difference identities to find the cosine angle cos pi/9 cos pi/3  sin pi/9 sin pi/3 I do not know how to solve this because pi/9 is not on the unit circle.
asked by Hannah 
math
what magic trick does Mr. Utterbunk perform every evening?
asked by fonzy 
Chemistry
A sample of benzene, C6H6, weighing 3.51 g was burned in an excess of oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00 C to 37.18 C. If the heat capacity of the calorimeter is 12.05 kJ/K, what is the molar energy of
asked by Marie 
Math(Please help)
2) Use the sum and difference identites sin[x + pi/4] + sin[xpi/4] = 1 sinx cospi/4 + cosxsin pi/4 + sinx cos pi/4  cosx sin pi/4 = 1 2 sin x cos pi/4 =1 cos pi/4 = sqr2/2 2sin^x(sqrt2/2) = 1 sin x = sqrt2 x = 7pi/4 and 5pi/4 Am I correct?
asked by Abbey 
college calculus 1
Find the local and absolute extreme values of the function on the given interval. f(x)=x^36x^2+9x+1, [2,4]?
asked by jeffery 
English
In Langston Hughes poem "Theme for English B," in the lines 1626 it says: It's not easy to know what is true for you or me at twentytwo, my age. But I guess I'm what I feel and see and hear, Harlem, I hear you: hear you, hear mewe twoyou, me, talk on
asked by Troy 
personal finance
if you wanted to save $ 50,000 to have it available in 20years provided the investment would return an APR of 12% compounded monthly. a. how much would you need to have at the beggining (lump sum) in order to achieve the mark of $50,000. b. how much would
asked by susie 
spanish
what does mi pies grande son mis zappotas mean
asked by lanenar 
English
Before I start posting questions, I'd like to ask, has anyone read the script Joker in the Pack. It is a short play about Mitchthe main character. Even if you have not read this script is it okay if I still post the questions about it. I'll answer them
asked by Sara 
math
what is 2 percent added to $13.15
asked by Travion 
personal finance
in this problem: if you wanted to put aside $2,000 a year for 10 years ginven a 10% rate of return (compounded monthly) Here, is it the 10 % every month, or the 10% is divided by 12 months of the year and then every month the % is 0.83%?
asked by susie 
math
. A Boeing 747 jet is approximately 230 ft long and has a wingspan of 195 ft. If a scale model of the plane is about 40 cm long, what is the model’s wingspan?
asked by kirk 
chemistry
A student performed the synthesis of aspirin using a water bath at 90C instead of 50C. The final product was tested for the presence of phenols with ferric chloride. This test was negative (no color observed); however, the melting point of the dry product
asked by 10ch 
math
find the missing length of the right triangle 17 and 15
asked by Lynn 
MATH
Sam built a ramp to a loading dock. The ramp has a vertical support 2 m from the base of the loading dock and 3m from the base of the ramp. If the vertical support is 1.2 m in height, what is the height of the loading dock? Can someone please show me how
asked by Anonymous 
math
Bill got 52 correct answers on an 80question test. What percent of the questions did he answer incorrectly?
asked by kirk 
Math
Divide as indicated. (2x5  x3 + 4x2 + 58x  20) ÷ (x2  5)
asked by LaLa 
Math
Use synthetic division to divide. (4x3 + 26x2 + 10x  12) ÷ (x + 6)
asked by LaLa 
math
what is the area of the circumscribed square about a circle having a 12pie perimeter?
asked by chelsea 
human resources
describe personal values and ethics.
asked by Anonymous 
algebra
s=c(A=B)find c
asked by Anonymous 
physics
A 22cm diameter bowling ball has a terminal speed of 77 m/s. What is the balls mass. I need to get the answer in kg. I can`t figure this one out for some reason. Thanks!!
asked by norm 
Space Exploration
tell what the concept of a habitable zone around a star is. how would I answer this question? The habitable zone is the region around a star where liquid water can exist on planetary surfaces.
asked by Sara 
computer
Can you explain step by step how data is processed in the computer
asked by Leah 
medical records
Mrs. Fleet has informed you that Gulf View Associates and Sarasota Outpatient Clinic are considering the possibility of upgrading to electronic medical records
asked by Toni 
algebra
A person is 3 times as old as aonther person but in 15 years she will only be 2 times as old. I found the answer the younger person is 15 years old and the older person is 45 years old. But 15 years from now the younger person will be 30 years old and the
asked by Lanise 
algebra
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 kimnlesc 
personal finance
Juan has received $50,000 in a divorce settlement and is trying to decide how to invest it.He has looked at stocks but knows that some stocks have lost a lot of value for their owners recently.What aspect of investing is he most concerned about? a)risk
asked by vedrana 
literature
during what part of bernice bobs her hair does bernice cut Marjories braids
asked by stephanie 
math
find the slope of the line that is perpendicular to the line whose equation is 5x7y=12
asked by anonymous 
algebra
m=116 a=500 t=6000 h=45 what is the product of h and m?
asked by Anonymous 
math
A car company is offering car loans at a simple interest rate of 4.7%. Find the interest charged to a customer who finances a car loan of $7200 for 3 yr.
asked by kirk 
English
I have wrote a brief summary about the script I am referring to, so if you have time, please do read it, thanks. Can I still post my questions, maybe not all of them. I am going to go through them, and the ones I need help on, I'll post, thanks
asked by Sara 
math
. A realestate broker receives 4% of an $80,000 sale. How much does the broker receive?
asked by kirk 
Chemistry
Using Heisenberg's Principle, calculate for the following positions. a) a 1.54mg mosquito moving at a speed of 1.82 m/s if the speed is known to within ± 0.01 m/s b) a proton moving at a speed of (4.67 ± 0.02) 104 m/s When I solved (a) I got 1.88e30
asked by Anonymous 
Math
Simplify Leave answer in qt. and pt. format. 9 qt 9 pt
asked by JO JO 
Com 220
Hi, I am writing a sentence outline on the subject of World War II; more precisely, the events that led to the war. I am somewhat confused on how to do this on the parts that I need to state and support the argument as well as prepare against any rebuttals
asked by Wesley 
PHYSICS PLEASE HELP!
(a)How much work is done by the field in moving the electron through a distance of 7 cm? J (b) Through what potential difference will it have passed after moving through this distance? V (c) How fast will the electron be moving after it has traveled this
asked by James 
MATH
can some one please help to solve this problem. Add. reduce to lowest terms, if possible 3/y+3+y+7y9+/7/y3
asked by MAYA 
personal finance
Brenda has received a $10,000 gift from her mother and is trying to decide how to invest it.She thinks she would like to invest it in stocks because she knows that stocks have been earning about 10%rate of interest over the last several years.What aspect
asked by vedrana 
math
a worker in a city parks need to cover a circular path around the outside of a flower garden with gravel. the radius of the garden is 15 feet and the path surrounding the garden is 6 feet wide. how many square feet need to be covered with gravel? expalin
asked by Katherine 
math
how do I do this? 28 students collected 12,374 soda can tabs. If some of the students collected one more tab than the rest of the students, how many collected 441 and how many collected 442?
asked by Cory 
Math (FST Exponential & Logarithm)
What is the range of y= (2)^(x3)
asked by Raven 
Space Exploration
ou tline the conditions for liquid water to exisit on a planet. the planet needs to have a right temperature protective atmosphere habitable zone are these the only reasons?
asked by Sara 
health
„Ï Discuss how participation contracts represent financial opportunities for providers. What are positive and negative ramifications of discounted feeforservice arrangements? Explain your answers in 200 to 300 words.
asked by Anonymous 
Laws
How have the historical laws of the code of Hammarubi, Draco's Law, Law of the Twelve Tables, Justinian Code, Magna Carta, and the Statue of Westminster led to the development of security forces, both private and public? Why do you think the need for both
asked by juliet 
6th Grade Grammar
Past perfect or present perfect. A reporter has interviewed him several times.
asked by David 
math
divide 12/0
asked by JO JO 
6th Grade Grammar
Past perfect or present perfect. Raj has told the reporter about his new ideas.
asked by David 
physics
Good job "Drwls", your answer to my bowling ball question worked. Way to go!
asked by norm 
6th Grade Grammar
Present perfect or past perfect. The two have worked together to write a book.
asked by David 
English
is the following sentence biased? Our new district attorney, a Cuban American, is making a speech on Saturday.
asked by Sally 
Algebra
Is the graph of a parabola a function? I say that it is a function.
asked by B.B. 
ap chemistry
can you help: "Explain why there are no geometric isomers of tetrahedral complexes. thank you
asked by Kiki 
algebra
5x + 5y=25 10x+5y=10 Graph the linear equation by writing both equations in the slope intercept form... I'm really struggling with this questions.. i have to fill in y=___x+_____ y=____x+_____
asked by jerson 
GSU
Explain why an economy's output, in esence, is also its income.
asked by Ramu 
law
What statute did Congress pass two years after the Miranda ruling
asked by Anonymous 
math
there are two 1's,two 2's,and two 3's.There is one digit between the two 1's, there are two digits between the two 2's, and there are three digits between the two 3's. Holding number cards,can you duplicate this sequence of numbers?
asked by CeCe 
6th Grade Grammar
Present perfect, past perfect or future perfect. This month, we have learned about the great sphinx.
asked by David 
Biology Research Paper
'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources take millions of years to make. We are currently using the fuels that were made more than 300 million years ago, before the time
asked by mysterychicken 
6th Grade Grammar
The sixth grade class *had wrote* several papers about the great sphinx. How should the words in the asterisks be written? A. had written b. has wrote c. correct as is
asked by David 
Science
what is the electron arrangement for boron? and how do you find the valence electron for it? i know it has 3 v.e. but how do you find it
asked by Anna 
Business
Belinda invested a portion of her savings, indicating that the type of investment she made was a loan to a wellknown corporation that generates regular fixed interest payments. What did Belinda invest in? I think it's a bond. Am I correct?
asked by Lena 
statistics
Are there situations in business where sampling would not be effective? 
asked by pat 
math 12
How do I find the asymptotes of (y2)^2  x^2/4 =1 The center is (0,2)
asked by Rae 
Chemistry
A chemist heated a sample of steel wool in a burner flame exposed to oxygen in the air. He also heated a sample of steel wool in a container of nearly 100% oxygen. The steel wool sample in the container reacted faster than the other sample explain why
asked by Anonymous 
Math
Express each statement using an inequality involving absolute value.Do not solve. 1.The majority of grades in Sean's English class are within 4 points of 85. 2.AA thermometer is guaranteed to give a temperature no more than 1.2F from the actual
asked by Shadow 
chemistry
URGENT: If 2.24g of salicylic acid is reacted with 61mL methanol, what is the maximum mass of product that could be formed? The density of methanol is 0.791g/mL. Do I just multiply 61ml by 0.791g/ml to get 48.251 g methanol then multiply this by the 2.24g
asked by Lee 
biology
the structure of the forelimb of a bird is similar in structure to that of the forelimb of a mammal suggesting that both desceded from a common ancestor this similarity is an example of a. vestigial b. biochemicial c. anatomical evidence that supports the
asked by kay 
business
i have two businesses,a chicken wing place and an antique shoppe.what is the format of describing both in one paragraph?
asked by barbara 
Trig
evaluate exactly(without calculator): 1. sec(pi/4) 2.3sin4pi 3. tan240(degrees)
asked by Amy 
spanish
que vas a hacer manana? voy a esquiar. Y tu? a. me gusta esquiar tambien b. vas a mirar la televisor c. voy a correr 5 kilometros
asked by lisa 
Biology
37. Wings, fins, and arms are limb adaptations that allow mammals to a. live in different environments b. attain diverse sizes c. nurse their young d. communicate with other mammals 38. Which characteristic is NOT widely adapted to allow mammals to live in
asked by mysterychicken 
Economics
Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that
asked by John 
Micoud secondary
determine the number of electrons required to deposit 6.4g of copper from an aqueous solution of copper II sulphate
asked by kaye 
Economics
The Largo Publishing House uses 400 printers and 200 printing presses to produce books. A printer's wage rate is $20, and the price of a printing press is $5000. The last printer added 20 books to total output, while the last press added 1000 books to
asked by John 
Science
Trying to complete a word search. What is a 6letter word for "State of water that is most common on Earth's surface"
asked by Terri 
Penn Foster
Xrays or are diagnostic tools used to visualize internal organs
asked by Shannon 
samuel
how would i do this quadratic word problem A local daycare centre charges $65 per day to care for a child. The daycare currently cares for 150 children per day. A survey shows that the enrollment in the daycare will increase by 10 children for each $5
asked by jake 
bio
what is the adaptive value of having the organ of gas exchange  in this case, the alveolus  inside the body?
asked by adele 
college
Solve the inequality using a sign graph (test point method) x^3x^24x+4
asked by Sierra 
chemistry
How could you recover sucrose or sodium chloride once it has dissolved in water?
asked by Anonymous 
english
waht does the idom catch a cold mean
asked by Anonymous 
Math
Could someone please help me with this question? Thanks! Reduce (x^25x+6)/(x2) to lowest terms
asked by Holly 
math 30
Describe how the graph of y=f(2x+6)+7 can be obtained from the graph y=f(x)
asked by Sandy 
college microeconomics
An article in the journal of New York State Economics Association claims that the income elasticity of demand for public college education in New York is +1.67. Who would find this information useful and why? come up with 3 interested parties
asked by lia 
World History
Both Stalin in the Soviet Union and Hitler in Germany instituted ruthless campaigns against supposed enemies of the state. Why do you think dictators need to find scapegoats for their nation's ills?
asked by Natalie 
math
how would i do this quadratic word problem A local daycare centre charges $65 per day to care for a child. The daycare currently cares for 150 children per day. A survey shows that the enrollment in the daycare will increase by 10 children for each $5
asked by jake 
math
A parabola with a vertex at (–1, –2) passes through the point (1,6). Using this information, what are the xintercepts of this parabola? A) (1 – , 0) and (1 + , 0) B) (2, 0) C) (0, 0) and (–2, 0) D) (0, 0) how would i figure this out?
asked by jake 
chemistry
A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0.140 mols of NH3 (g). NH4++++>>nh3 (g) + h2s (g) KP = 0.108 wHAT will be the total gas pressure at 25 degrees in atm. I got about 1.361...i don't kno what im doing wrong. im multiplying the
asked by anonymous 
math.
Suppose h(x) = 3x and k(x) = log3(x). What is k(h(x))? What about h(k(x))? Start with a few numbers to convince yourself. Explain completely why this is true.
asked by Alyssa Pacheco 
chemistry
1.30 mol each of CO} and Cl2 are introduced into an evacuated 1.80 L flask, and the following equilibrium is established at 668 K. CO + Cl2 +++> COCl2 kp = 22.5 Calculate partial pressure of COCl2. i get about 30.9. but its wrong. i solved for x,
asked by anonymous 
Social Studies
northwest florida indian tribe
asked by Andrea 
Calculus
A steamship sails upriver from A to B against a current of three km/h. If the amount of fuel consumed per hour varies as the cube of the speed through the water, how fast should the captain order the ship to steam, if the fuel consumption for the journey
asked by Ronald 
4th grade math
You are playing a card game with a full deck of 52 cards. You win if you draw a red card that is a multiple of 5. What are your chances of winning on your first draw?
asked by Katelee 
Chemistry
What is a reasonable discussion of the method for the preparation of a sample of lead iodide and hygrated copper sulphate?
asked by Gillian 
trig
I got the following question marked wrong and I was wondering if someone could tell me why I got it wrong. The question is of the 6 trigonometric ratios, if only cosine and secant are positive, the angle is in which quadrant? I said it was in the 4th
asked by Juliet 
physics
a 10kg block is allowed to slide down a ramp with Mk=0.15. what is the acceleration of the block?
asked by jennifer 
math
Can you help with three problems 1)2x^2+7x+3 2)6x^2+5x4 3)4x^2+12x+9 I have to factor this problems.Please help
asked by lauren 
trig
How do I dertermine the measure of theta for the equation 4cos theta  sqrt 12 = 0. My answer was 2pi/3,4pi/3 I'm told it's wrong could you please show me how to do this type of question
asked by jamie 
4th grade social studies
what does Neutral mean?
asked by danielle 
physics
Two airtrack carts move toward one another on an air track. Cart 1 has a mass of 0.34 kg and a speed of 1.1 m/s . Cart 2 has a mass of 0.68 kg and a speed of 0.55 m/s .
asked by Kyle 
Biology Research Paper
This is my essay on fossil fuels. Can This is my essay on fossil fuels. Can someone please check to see if there are any improvements that can be made? Also, I need help writing a conclusion. Have you ever thought about where your electricity comes from?
asked by mysterychicken 
physics (fixed)
Two airtrack carts move toward one another on an air track. Cart 1 has a mass of 0.34 kg and a speed of 1.1 m/s . Cart 2 has a mass of 0.68 kg and a speed of 0.55 m/s. Calculate the system's kinetic energy.
asked by Kyle 
Geometry
The slope of line m is 1\5. what is the slope of a line perpendicular to m?
asked by Anonymous 
us history
"the supreme court ruled that juveniles must receive the same due process rights as an adult,such as the right to an attorney.The only right not guaranteed is the right to trial by jury". Is this following the 14 amendment?
asked by anem 
5th grade
What do you call bones joined together with cartilage?
asked by taralee 
science
Silver bromide a pale yellow precipitate is more soluble than silver iodide. What would happen if NaBr had been added to the solution
asked by Sabrina 
geometry
In the tests of a new pharmaceutical product, data were collected for use in the approval process required by the U.S. Food and Drug Administration (FDA). Some participants were given a placebo, an inert substance that looks like the drug; others were
asked by dic 
Organic Chemistry 1
write a stepbystep mechanism for the reaction of 1butanol with sodium bromide and sulfuric acid.
asked by Brianna 
math (help!!!!)
one canned jucie drink is 15% orange jucie; another is 10% orange jucie. How many liters of each should be mixed together in order to get 5L that is 11% orange jucie? How many liter of the 15% orange jucie and how many liters of the 10% orange jucie should
asked by sue 
APChem
"Part A: Most of the transition metals form brightly colored ionic substances. Which elements located in the first row transition metals cannot form ionic compounds? Explain. Part B: Explain why representative metals do not form colored compounds." I am
asked by Marta 
Calculus
derivative of (4Cos^2(3x)+3)^2
asked by Anonymous 
Calculus
2nd derivative of 3t^2 Cos(4t)
asked by Anonymous 
math
solving this equation...0.9x + 9 ¡Ü 1.3x6
asked by amy 
Calculus
Derivative of (Sec(z))^2
asked by Anonymous 
5th grade
the radius is 6.what is the area and circumference?
asked by gracie 
Economics
The Keynesian Multiplier under lump sum taxes A. Smaller than that under proportional tax B. Equal to that under proportional tax C. Larger than that under proportional tax D. Can be larger or smaller depending upon the size of the tax Choose the right
asked by Salman 
math
what goes first second and third one nineth five sixth or seven eighth
asked by daniela 
Chemistry
What i meant was I have already had the method in preparing the insoluble salt Pb(NO3)2 and KI and the soluble salt Sulphuric acid and copper oxide. What I need is the discussion of the method use or the procedure that you may have for this preparation the
asked by Gillian 
Geometry
The line L1 has the equation y=3x. The line L2 is perpendicular to L1 and passes through the point P(0,0). Write an equation of L2
asked by Anonymous 
math
Evaluate: sec4ð/3
asked by A 
financing
what is the value of a $50,000 10 year annuity given a 20% rate of return today?
asked by susie 
math
Solve: csc x = 2, 0¡Üx
asked by B 
math
x^249 Can you help explain why this example is a diffence of two squares
asked by alyssa 
Chemistry
Write a balanced equation for each reaction Al + Cl2 >
asked by Zackary 
metro
Calculate the pH of the buffer solution that results when 10 mL of 0.10 M NaH2PO4 is added to 3 mL of 0.05 M NaOH.
asked by pat 
Global History
what was Adolf Hitler's goal during the National Socialist movement?
asked by Alex 
Global History
Why were Western democracies willing to give into Hitler's aggressive actions?
asked by Alex 
5th grade
Can you please help with the following questons: 1. Duran was baking cookies. Each cookie had a circumference of 9.3 inches. About how many inches is the diameter of each of Duran's Cookies? a. about 3 inches b. about 5 inches c. about 6 inches d. about 27
asked by MATH PLEASE HELP 
Geometry
Lines J and N are perpendicular. The slope of line J is 5. What is the slope of line N?
asked by Anonymous 
Poly Sci
What are 5 examples how the courts have used the Commerce Clause to increase the power of the Federal Government over the states.
asked by Ryan 
social studies
The most useful indicator of the degree of democracy reached by a particular society is whether it has a:
asked by keke 
math 12
While training for a race, a runner increases her distance by 10% each day. If she runs 2km on the first day, what will her total distance for 26 days of training?
asked by C 
Chemistry
I'm working on homework and the computer won't accept my answer. Calculate the energy of photons with wavelenth 0.174 nm. I used the equation E=hv and got the answer to be 1.14 X 10^17. It says i'm off by a multiple of ten. I have no idea where I messed
asked by Anonymous 
maths
The mean of 10 observations is 21. If each score is divided by 3, find the new mean.
asked by neha 
Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of
asked by Chris 
Biology
Need help with these 2 37. Wings, fins, and arms are limb adaptations that allow mammals to a. live in different environments b. attain diverse sizes c. nurse their young d. communicate with other mammals 38. Which characteristic is NOT widely adapted to
asked by mysterychicken 
Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of
asked by Chris 
Statistics
Choose the right answers, and provide reasons and calculation To study the effect of change in price of a DVD ($) on the total profit (000, dollars), the analyst of an electronic firm randomly selected 13 retail sales stores. She used the data on total
asked by Chris 
Global History
Last question i promise. Describe Hitler's blitzkrieg tactics.
asked by Alex 
Science
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. What is the horizontal velocity component of the ball to the nearest tenth of a m/s?
asked by Veronica 
English
1. She is good at dancing. 2. She is good at dance. (Which one is correct? Are both correct?) 3. I am a student at Class 11. 4. I am a student in Class11. 5. I am in Class 11. 6. I am a first year student in Class 11. 7. I am a first grader of Class
asked by rfvv 
English
Is there any quote on Daisy expressing her being self obbsesiven in the great gatsby? If yes please state it below i cant find any in the book
asked by Lenea 
math
Melissa baked 8 trays of 5 cookies each. She sold 3 plates of cookies. Which expression correctly represents how many cookies she sold? Circle the best answer.Here are the answer to choose, i don't know how to get the answer? A.(83)*12 B.3*12 C.8*12
asked by Xwm 
Math (FST Exponential & Logarithm)
What is the amount and type of the growth factor of the model: y=3(1.04)^x Determine the equation for the asymptote: y=2+ log(x3) For the second question, I don't even have an idea what is to be determined.
asked by Sandy 
HONORS CHEMISTRY
A synthesis of nitrogen dioxide from nitrogen and oxygen. There are 5.000 mol of N2 and 8.000 mol of O2 mixed in a 5.000L flask. What is the equilibrium constant for the synthesis?
asked by helpless 
physics
What net force would actually be necessary to stop an automobile of mass 880 traveling initially at a speed of 52.0 in a distance equal to the diameter of a dime, which is 1.8 ?
asked by hydro 
Math (FST Exponential & Logarithm)
Find the exponential model using y=a(b)^x with (9, 120) & (12, 216) (round to 4 decimal places show work)
asked by Shay 
English
1. Talk with your partner using frequency adverbs. You should think of your favorite sport and work in pairs, and practice the dialogue. There are some blanks in the senences, so you should fill them out remembering the dialogue we practiced before. Are
asked by rfvv 
Global History
Hitler translated his hatred into a program of genocide. How do ethnic, racial, and religious hatreds weaken society? is the answer because people believe race can create conflicts towards different gropus of race
asked by Alex 
chemistry
A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0.140 mols of NH3 (g). NH4++++>>nh3 (g) + h2s (g) KP = 0.108 wHAT will be the total gas pressure at 25 degrees in atm. I got about 1.361...i don't kno what im doing wrong. im multiplying the
asked by anonymous 
chemistry
1.30 mol each of CO} and Cl2 are introduced into an evacuated 1.80 L flask, and the following equilibrium is established at 668 K. CO + Cl2 +++> COCl2 kp = 22.5 Calculate partial pressure of COCl2. i get about 30.9. but its wrong. i solved for x,
asked by anonymous 
Economics
If investment is dependent on income in addition to interest rate (assuming C and G have usual forms) then the Keynesian multiplier will A. Not Exist B. Equal to as compared to the case where investment is not dependent on Y C. Smaller as compared to the
asked by Salman 
English
Language Analysis Please help me find persuasive techniques/statements in the following article.. I've never done this before, and I've "stewed" over the subject for the last couple of days, but I'm absolutely incensed that the Victorian Government will be
asked by David 
Resume
Is it essential that you put your address on a resume?
asked by Lena 
English
Is there any quote in the great gatsby which expresses daisy's self obbsession and her self pride? Please help me, i tried looking the book but couldent find it
asked by Lenea 
decimals
write decimal for 47.5%
asked by paul 
Chemistry
Why can lead sulphate not be made in the same was as copper (11) sulphate
asked by Joseann 
ALGEBRA
What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?
asked by GGIFT 
Math
Francesca has 16/7 ft of string for her kite. Jason has 2 3/4 ft of string for his kite. Katie has more string than either Francesca or Jason. How much string could Katie Have?
asked by Blake 
ALGEBRA
Rearrange the following equation to solve for “x”: y = sqrt(x) / z How do I even begin???
asked by GGIFT 
organic chemistry
1. why is phosphoric acid needed in the synthesis of aspirin? 2.what would happen if the phosphoric acid is left out?
asked by 10ch 
math
tian's daughter will be 5/6 of a year old next week.how many months old will she be
asked by leslie 
5th grade
What are the stresses of the words dozen, voyage, forbid, native, language, destroy, notice, distance, carrot, knowledge, captive, spinach, solid, justice, ashamed, program, message, respond, service, and relative??? I suck at these.........I always try
asked by a person 
personal finance
would you purchase a $100,000 20 year annuity today for $15,000 given a required rate of return of 14.5%? Why, what is the value of the annuity?
asked by Isabel 
MGT
What are current moral issues facing today's business environment? I have googled this and I have come up with nothing. So can somebody please help me out?
asked by AMW