Questions Asked on
March 30, 2010

math/calculus
an electric current I , in amps is given by: I= cos(wt) + sqrt of 3 sin(wt) where w is positive constant. what are the max and minimum values of I? *please be specific
asked by miley 
Physics
How much energy is needed to melt 0.225 kg of lead so that it can be used to make a lead sinker for fishing? The sample has an initial temperature of 27.3 degrees celsius and is poured in the mold immediately after it has melted. Not sure if this is
asked by Kim 
4th grade math
round 12 5/12 to the nearest whole number.
asked by mia 
Algebra
An appliance store manager is ordering chest and upright freezers. one chest freezers costs $250 and delivers a $40 profit. One upright freezer costs $400 and delivers a $60 profit. Based on previous sales, the manager expects to sell at least 100
asked by Sara K. 
math
The radius of each wheel of a car is 16 inches. At how many revolutions per minute should a spin balancer be set to balance the tires at a speed of 90 miles per hour? What is the setting for a wheel of radius 14 inches?
asked by Alex 
Chemisrtry
What is the PH of a solution that results from mixing together equal volumes of a 0.150 M Solution of acetic acid and a 0.0750 M solution of sodium hydroxide?
asked by Ginger29 
Calculus
A vehicle moves along a straight path with a speed of 4m/s. A searchlight is located on the ground 20m from the path and is kept focused on the vehicle. At what rate (in rad/s) is the searchlight rotating when the vehicle is 15 from the point on the path
asked by sh 
PreCalculus
After leaving an airport, a plane flies for 1.75h at a speed of 200km/h on a course of 100 degrees. The plane then flies for 2 hours at a speed of 250km/h on a course of 40 degrees. At this time, how far from the airport is the planee?
asked by Noelle 
math
In how many ways can Joe, Mary, Steve, and Brenda be seated around a round table?
asked by hrw 
Electronic Timing inc
Electronic Timing, Inc. (ETI), is a small company founded 15 years ago by electronics engineers Tom Miller and Jessica Kerr. ETI manufactures integrated circuits to capitalize on the complex mixedsignal design technology and has recently entered the
asked by babyputra 
math
Write the converse of this statement. If 2 's are supplementary, then they are not equal. Converse:
asked by amy 
gr 12 chem
evidence indicates that copper is paramagnetic, but zinc is not. Explain the evidence.
asked by shell 
English
I'm doing questions on the poem called "You are reading this too fast", by Ken Norris, and I need help with some of the questions. Here is the actual poem: You are reading this too fast. Slow down, for this is poetry and poetry works slowly. Unless you
asked by Sara 
Chem 2
Argon makes up 0.93% by volume of air. Calculate its solubility (mol/L) in water at 20C and 1.0 atm. Henry's law constant for Argon under these conditions is 1.5 x 10^3 mol/L*atm.
asked by Mike 
Physics 1
The label on a candy bar says 470 Calories. Assuming a typical efficiency for energy use by the body, if a 74 person were to use the energy in this candy bar to climb stairs, how high could she go?
asked by Naso 
corporate finance
Electronic Timing, Inc. (ETI), is a small company founded 15 years ago by electronics engineers Tom Miller and Jessica Kerr. ETI manufactures integrated circuits to capitalize on the complex mixedsignal design technology and has recently entered the
asked by babyputra 
Chemistry
Calculate what mass of argon gas is required to full a 20.4L container to a pressure of 1.09 atm at 25C
asked by Anonymous 
pre calculus
A state makes auto license plates that have two letters (excluding I, 0, and Q) followed by four digits of which the first digit is not zero. How many different license plates are possible?
asked by ron 
math  probability
An astronomer wishes to measure on a photograph the distance between the image of a certain star and three other star images nearby. If eight images are nearby, how many choices of the three stars does he have?
asked by homer 
probability
Bag A contains 3 white marbles and 2 red marbles. Bag B contains 6 white marbles and 3 red marbles, find the probability of drawing a white marble from Bag A followed by a white marble from Bag B.
asked by jon 
history
Why do some people call Franco a fascist? and what things about Franco were fascistic.
asked by john 
Math
To measure the height of a building,two sightings are taken a distance of 50 feet apart. Of the first angle of elevation is 40 degrees and the second is 32 degrees, what is the height of the building?
asked by Alex 
Chemistry
Define a genetic mutation and state the types of genetic mutations. Discuss the effects of genetic mutations.
asked by Marlene 
physics
Find the maximum possible coefficient of performance for a heat pump used to heat a house in a northerly climate in winter. The inside is kept at 24 degree C while the outside is 24 degree C.
asked by Naso 
Physics
How much energy is needed to melt 0.225 kg of lead so that it can be used to make a lead sinker for fishing? The sample has an initial temperature of 27.3 degrees celsius and is poured in the mold immediately after it has melted. Not sure if this is
asked by Kim 
Trig.
Help with this problem please. I don't get it at all. A ship is heading due north at 12 mph. The current is flowing southwest at 4mph. Find the actual bearing and speed of the ship.
asked by Shane 
math
A pendulum swings through an angle of 20 degrees each second. If the pendulum is 40 inches long, how far does its tip move each second?
asked by Alex 
College Chemistry
a) Water drops, sitting on your skin after a dip in a swimming pool, evaporate. Identify the system and its surroundings for the above process and state the direction of heat transfer. Is the process endothermic or exothermic. Would the system be the
asked by Molly :) 
Chemistry
A student constructs a galvanic cell that has a strip of lead metal immersed in a solution of 0.1M Pb(NO3)2 as one halfcell and a strip of zinc metal immersed in a solution of 0.1M Zn(NO3)2 as the other halfcell. The measured cell potential is less than
asked by Mel 
calculus
a closed box has a fixed surface area A and a suqare base wide side X a) find the formula for its volume, v, as a function x b) sketch the graph of v against x c) find the max value of V
asked by clueless 
college physics (inertia)
As a result of friction, the angular speed of a wheel changes with time according to dθ/dt = ω0 *e^(σ*t) where ω0 and σ are constants. The angular speed changes from an initial angular speed of 3.08 rad/s to 1.58 rad/s in 3.92 s. a)Determine the
asked by eric 
Math/calc
an electric current I , in amps is given by: I= cos(wt) + sqrt of 3 sin(wt) where w is positive constant. what are the max and minimum values of I?
asked by Jolly :) 
Physics
Figure 833 shows a 1.50 kg block at rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a
asked by Kelly 
college physics (inertia)
As a result of friction, the angular speed of a wheel changes with time according to dθ/dt = ω0 *e^(σ*t) where ω0 and σ are constants. The angular speed changes from an initial angular speed of 3.08 rad/s to 1.58 rad/s in 3.92 s. a)Determine the
asked by eric 
Chemistry
A student is given a sample in lab which contains one of the ions listed below. After adding a few drops ofsolution to part of the unknown sample, the student got a greyish precipitate. After adding a few drops ofsolution to another part of the unknown
asked by Evelyn 
English
How to eat a poem Don't be polite. Bite in. Pick it up with your fingers and lick the juice that may run down your chin. It is ready and ripe now, whenever you are. You do not need a knife or fork or spoon or plate or napkin or tablecloth. For there is no
asked by Sara 
accounting
Select the incorrect statement about budgeting committees. A)Budgeting committees usually have responsibility for the coordination of budgeting activities. B) Membership on the budgeting committee is restricted most often to accountants because the budget
asked by zd 
Chemistry
There are three isotopes of carbon differing with respect to: a. neutrons b. atomic number c. nuclear charge d. electron configuration e. number of protons
asked by Evelyn 
College chemistry
103.5 mL of hydrogen are collected over water at 22.2 degrees Celsius and 758.2 torr from reaction with 0.1356 grams of alloy. calculate the number of moles of dry hydrogen gas that were collected.
asked by Paula 
physics
You raise a bucket of water from the bottom of a deep well. If your power output is 101 W, and the mass of the bucket and the water in it is 3.00 kg, with what speed can you raise the bucket? Ignore the weight of the rope.
asked by wayne 
Math
Would someone please double check my answers. The retail cost of a computer is 32% more than its wholesale cost? which statement is true? 1. THe retail cost of the computer is 132% more than the wholesale price. 2. THe wholesale cost of the computer is 68%
asked by Amy 
College Chemistry
Using this equation: CH4(g)+2O2(g)> CO2(g)+ 2H2O(l) What is the value of Enthalpy( triangle H) if 15.00g of O2 is reacted?? How do i set up the mole to mole ration?? with what am i comparing it too??
asked by Anonymous 
physics helpppp
particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it reaches x = 0, it undergoes a onedimensional elastic collision with stationary particle 2 of mass m2 = 0.40 kg. When particle 2 then
asked by Anonymous 
computer science
Write a program that will input an item’s wholesale cost and its markup percentage. The program will output the item’s retail price. The program should repeat for several input values. For example, if an item cost is 5.00 and markup is 100%, then the
asked by Matt 
Elementary math College
A bag contains 7 red chips and 9 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that the two chips are the same color?
asked by Anna 
college physics (inertia)
As a result of friction, the angular speed of a wheel changes with time according to dθ/dt = ω0 *e^(σ*t) where ω0 and σ are constants. The angular speed changes from an initial angular speed of 3.08 rad/s to 1.58 rad/s in 3.92 s. a)Determine the
asked by eric 
Algebra
Complete the square for the binomial. Then factor the resulting perfect square trinomial. x^2 2/11X
asked by Anonymous 
Math
Please double check me. Brett saved $670 at the bank. he want to save $3800 for a trip to disneyland. what percent of his goal has been reached? 17.6%
asked by Amy 
MATH
The function s(t) = 16t^2 models the distance, s(t), in feet, that an object falls in t seconds. Find the number of seconds a sky diver is in free fall after jumping from a plane if she falls 192 feet before opening a parachute. Express your answer in
asked by KE KE 
college
an investor is looking for 4 year investment.the share of skylark company is selling for rs 75.they have plans to pay a divedend of rs 7.50 per share each at the end of first and second yaears and rs 9 and rs 15 respectively at the end of third and fourth
asked by rishi 
Stats
A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of .5 ounces. What is the probability that a loaf of bread is < 20.75
asked by Anonymous 
sicence
Almost all maps have these four things? A)scale, legend, title, and compass B)rock units, legend, symbols, and scales C)contour lines, scale, legend, and compass D)rock types, legend, compass, and scale
asked by math 202 
calculus
find the volume of the solid whose base is bounded by the graphs of y= x+1 and y= (x^2)+1, with the indicated cross sections taken perpendicular to the xaxis. a) squares b) rectangles of height 1 the answers are supposed to be a. 81/10 b. 9/2 help with at
asked by john 
psychology
* Take about 15 index cards and a flashlight that is opaque on all sides (so that light shines only through the front) into a very dark room. * Place all 15 cards over the beam of light. * Slowly remove the cards one at a time until you can barely detect
asked by ingrid 
Algebra
Need help with these: [Can you show me the work for them please, if needed?] 3. Simplify (4x)(2y) Is the answer 8xy? 5. To which set of numbers does 7.543 belong? a. rational b. irrational c. integer ? 8. Write an algebraic expression for onehalf a
asked by mysterychicken 
Biology
"Suggest two things a large cell might do to increase its surface area:volume ratio". The obvious method would be to divide into many smaller cells...but what else can the cell do? I also thought that it could just simply grow larger, but the question
asked by Stuck 
programming
Write a program that will read in a length in feet and inches and will output the equivalent length in meters and centimeters. Use at least three functions : one for input, one or more for calculating and one for output. There are 0.3048 meters in a foot,
asked by viqar 
chemistry
classify each reaction and balance the equation Al(OH)3> Al2O3 + H2O
asked by taylor 
College Chemistry
Part a: What mass of solid CuCL2 is required to prepare 450.0mL of 0.125M CuCl2 solution?? Part B: What are the concentrations of Cu +2 ions and Cl ions in the above solutions. I understand part a, and got the right answer. i need help understanding part
asked by James 
5th grade
1. Why do many boys like to read stories about Davy Crockett? 2. Who were some of the famous people from Virginia? 3. Why did Sam Houston like to live with the Native Americans? 4. How did Sam Houston help his Indian friends? 5. What is a statesman? 6.
asked by Anonymous 
Finance
Dont' know how to approach this problem. J. F. & Sons must choose between two pieces of equipment. Equipment A has an NPV of $30,000 and a useful life of 3 years. Equipment B has an NPV of $50,000 and a useful life of 7 years. If the firm typically uses a
asked by Carolyn 
algebra
An amusement park's average daily attendance during its first year of operation in 1988 was 2046 people. since the the average daily attendance ahs increased by about 115 people yearly. let (T) be the number of years since 1988. use function notation to
asked by Zahera 
college math 205
Find the amount of each payment to be made into a sinking fund when $75000 @ 6% compounded semiannually for 4.5 years.
asked by calgal 
precalculus
a shipment of 10 microwaves contains 3 defective units. in how many ways can a vending company choose 4 units if: a)all units are good b)2 units are good c) at least 2 units are good
asked by n/a 
calculus
A box with a square base and an open top is to have a volume of 68in^3 . Neglect the thickness of the material used to make the box, and find the dimensions of the box that would minimize the amount of material used. The width and length of the box are
asked by Haley 
Global Strategic Management
Describe the EFAS and the IFAS. What is the purpose of each tool? Are there any weaknesses in the EFAS/IFAS classification system?
asked by Heather 
Physics
In Figure 834, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of
asked by Kelly 
thermodynamics
Saturated water vapor at 100 kPa jets into a pitcher containing 0.17 Kg of water initially at 278 K. If steam ow rate is 4 gm/min, estimate how long it takes to heat the water to 322 K. Assume the process is at constant pressure (at 100 kPa) and kinetic
asked by john 
math/prob stat
Testing for Alzheimer's disease can be a long and expensive process. Recently, a group of researchers devised a 7min test to serve as a quick screen for the disease. A patient who tested positive would then go through the more expensive battery of tests
asked by Ashley 
algebra1
32. Which of the following is an example of the Associative Property of addition? a. 4 + (3 + 1) = (4 + 3) + 1 b. 4(3 + 1) = 3(4 + 1) c. 3(4 + x) = 12 + 3x Please help
asked by y912f 
Finance
Bill deposited $520 in a savings account that pays pays 6% simply interest per year. How much will he earn in 1 year?
asked by Keisha 
Health
Ok, here you go Ms. Sue. These are what I think the answers might be. Please correct me if they are not right. And thank you. 1. A 15year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've
asked by B B 
calculus
a closed box has a fixed surface area A and a suqare base wide side X a) find the formula for its volume, v, as a function x b) sketch the graph of v against x c) find the max value of V
asked by miley 
College physics 1
A 40.0kg boy, riding a 2.50kg skateboard at a velocity of +5.30 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.00 m/s, 9.50o above the
asked by Bren 
psychology
* Fill 3 mediumsized bowls as follows: o Bowl 1  with very hot (but not painfully hot) tap water o Bowl 2  with very cold tap water o Bowl 3  with a mixture of the very hot and very cold water. * Arrange them, so your right hand is in front of the cold
asked by ingrid 
mat 172
solve the equation: arccosx+arccos2x=arccos1/2
asked by ami 
STATS
7. Calculate b0 and b1 and make an equation of regression line for the set of data given in Table 3 Table 3 x y 1 12 2 15 3 16 5 18 6 21 8 23
asked by Mary 
finance 200
· Complete using the financial statement below to calculate the 13 basic ratios found in the chapter. There is NO need to repeat the financial statements in your assignment. Just show the calculations of each ratio: FORD MOTOR CORPORATION Balance Sheet
asked by cari 
chemistry
A SOLUTION OF 0.05METER ACID PKA 6.10 IS MIXED WITH AN EQUAL VALUE 0.1 SODIUM SOLUTION OF SODIUM SALT WHAT IS THE PH OF THE FINAL MIXTURE.
asked by ronke 
fiance 200
How do I set this up? What do I do? I'm really confused on what to do. Please Help! · Complete using the financial statement below to calculate the 13 basic ratios found in the chapter. There is NO need to repeat the financial statements in your
asked by annonomous 
Social Studies URGENT
1. Why was the bison hunt so important to the Metis? Because the bison provided food for the Metis and clothes were made from the hides. 2. Activities/Lifestyle of Metis? ??? Can someone please check #1 and assist me with #2. Help is greatly appreciated.
asked by Cody 
Finance 200
How do I set this up? How do I do this? I'm not undestanding what she wants me to do. · Complete using the financial statement below to calculate the 13 basic ratios found in the chapter. There is NO need to repeat the financial statements in your
asked by cari 
Spanish
El Laberinto del Fauno Guillermo del Toro Escribe 3 4 frases para cada pregunta. Responde a dos preguntas en español, y a dos preguntas en inglés. i need help answering these questions in spanish? 1) ¿Están enamorados el capitán y la madre de Ofelia?
asked by kate 
help physcis
At what coldreservoir temperature (in degree C) would a Carnot engine with a hotreservoir temperature of 350degree C have an efficiency of 70%?
asked by Naso 
math
a closed box has a fixed surface area A and a suqare base wide side X a) find the formula for its volume, v, as a function x b) sketch the graph of v against x c) find the max value of V
asked by joelle 
Algebra
Help!! 13. Use the Distributive Property to simplify 7(6x^2 + 5x + 4) 15. Evaluate 5w^2 if w = .5 19. Write a simplified expression to represent 5 times the sum of x and 3 increased by 10. Is it 10+5(x+3) ? Thanks MC
asked by mysterychicken 
pre alebra
Thye base of a cylinder has an area of 153.86cm. the height of the cylinder is 5cm what is the volume of the cylinder
asked by Brianna 
Chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
asked by Marlene 
Chemistry
Identify a haloalkane and describe the manner in which it functions as an anesthetic.
asked by Marlene 
Chemistry
A girl is celebrating her seventh birthday. Each guest is served one large slice of chocolate cake, a hamburger, French fries, and some oranges. • Identify the food groups mentioned above. • If one slice of chocolate cake contains 35g of carbohydrate,
asked by Marlene 
marketing
The company you work for is considering changing its applicant testing process. Your supervisor has asked you to research testing methods and make your recommendation. This proposal will be submitted to the Vice President for review and consideration. For
asked by Anonymous 
Math
Find (if possible) the trigonometric function of the quadrant angle. sec 3pi/2 My answer was 0. Am I correct?
asked by Mark 
chemistry
The concentration of various cations in seawater in moles per liter are Na+ (0.46M); Mg2+ (0.056M); Ca2+ (0.01M); Al3+ (4x10^7M); Fe3+ (2x10^7M) If enough OH ion is added to precipitate 50% of the Mg2+, what mass of precipitate will be obtained from one
asked by Mel 
4th grade math
Find the partial products and the product for 4 X 27 =
asked by MEL again 
Physics
Dirk pushes on a packing box with a horizontal force of 67.0 N as he slides it along the floor. The average friction force acting on the box is 5.10 N. How much total work is done on the box in moving it 2.20 m along the floor?
asked by Max 
Health
1. A 15year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've eaten something that has upset my stomach.: She denies vomiting and weight loss. The patient has noticed a weight gain of 10
asked by B B 
ice cream
Suppose you have a friend named Ed. He and his four friends are having ice cream. There are only three flavors available at the ice cream store they are visiting: chocolate, vanilla, and strawberry. One of Ed’s friends, Stacey, eats chocolate
asked by dan 
accounting
novelty industries is establishing a sinking fund to redeem rs 5000000 bond issue which matures in 15 years.how much do they have to put into the fund at the end of each year to accunulate the rs 5000000 assuming the funds are compounded at 7% annually.
asked by rishi 
american intercontinental university
* Prepare one cup with sugar water and one with fresh water. * Take a sip of the sugar water and swish it around in your mouth for several seconds without swallowing it. Gradually, it should taste less sweet. (Dispose of the sugar water) * Taste from the
asked by ingrid 
Chemistry
A thirteenyearold girl, who is underdeveloped and thin, has a blood disorder. She frequently experiences chest and abdominal pain, fever, and coughing, and has trouble breathing. Her teachers often spend additional time with her, explaining concepts that
asked by Marlene 
Stats
A random sample of 30 women drank an average of 15 cups of coffee per week during examination finals, with the sample standard deviation equal to 3 cups. A upper limit of an approximate confidence interval with 95% of the population average cup drunk is ?
asked by Mariaan 
Organic Chemistry
When 2methyl2butene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. what new substance has been formed?
asked by Melissa 
math
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 given the drug. The data are shown in the following table:
asked by Hannah 
Math
How do you find the perimeter of a parallelogram with a base of 20mm, side length of 17 mm and height of 15mm. I think a parallelogram is only 2 dimension.
asked by Chase 
help with math please
a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
asked by princess 
Chemistry
The Managing Director of a wellknown company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently. One day she decides to go to her primary healthcare provider for a routine checkup. The healthcare provider
asked by Marlene 
Chemistry
Classify six kinds of amino acids according to the functions that they serve in the human body, stating an example for each class.
asked by Marlene 
Math
Solve: 3n7/(n2)(n3) + 2n+8/9n^2  n+2/(n+3)(n2) = 0
asked by Clark 
Geography
Where on Earth? You work for a company that specializes in environmental cleanup. Your company has been approached by representatives of several Eastern European governments. They want to clean up the Danube River and are asking companies in the United
asked by y912f 
apchemistry
Hi Please double check me: I had to state whether the process forms a voltaic or eletrolytic cell: YOu plug in your MP3 player to charge the nickelcadmium battery (I said electrolytic)??? The radio plays in your car even though the engine is not running.
asked by Kiki 
Math(Please check)
Find f X g , g X f , and f X f f(x) = 3sqrt x1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 1 g(f(x)) = 3sqrt (x1)^3 1 f(f) = 3sqrt x11 My teacher said these were wrong. Please help. I do not
asked by Hannah 
math
17% is equal to all of the following except? A. 9/10 + 8/100 B. 17 C. 0.1 + 0.07 D. 0.2 003
asked by Guadelupe 
Physics
A 2.1 kg block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring. (a) If the block compresses the spring 5.7 cm before coming to rest, what is the force constant of the spring? (b) What initial speed should
asked by Carden 
accounting
John wants to dissolve his business.His balance sheet shows assets with a value of $250,000 in total. Liabilities are shown at 200,000 leaving equity of $50,000 for John.He only expects to get $180,00,000 for his assets when he sells them because some
asked by Matt 
math/calc
The hypotenuse of a right triangle has one end at the origin and one end on the curve y+x^2e^(3x), with x > or = 0. One of the other two sides is on the xasis, the other side is parallel to the yaxis. Find the maximum area of such a triangle. At what
asked by miley 
computers
Can you describe some situations in which you would have liked to exchange information between Excel and some other applications? What are these applications, and why was such an exchange desirable? How might such exchanges make your work faster, more
asked by kerri 
Chemistry
A 40yearold manager, at a prominent legal firm in L.A., experiences abdominal pain post lunch. He goes to the restroom a couple of times, but continues to experience pain and cramps. He eventually decides to get himself examined. While questioning him,
asked by Marlene 
psychology
# Rub your index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). # After a minute or two, rub the same finger over the paper and again rate its coarseness. Did your
asked by ingrid 
psychology
* Prepare one cup with sugar water and one with fresh water. * Take a sip of the sugar water and swish it around in your mouth for several seconds without swallowing it. Gradually, it should taste less sweet. (Dispose of the sugar water) * Taste from the
asked by ingrid 
Math
The formula P = 0.64x^2  0.044x + 3 models the approximate population P, in thousands, for a species of fish in a local pond, x years after 1997. During what year will the population reach 34,052 fish? A.2004 b.2003 c. 2006 d.2005
asked by Anonymous 
physics
An object is thrown vertically into the air with an applied force of 145N. what is the initial acceleration of the object?
asked by jake 
microeconoimcs
how does utility relate to purposeful behavior
asked by jennifer 
math
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 given the drug. The data are shown in the following table:
asked by Hannah 
Teacher Math
Battery Power Problem. A certain type of thermal battery for an airplane navigation device backup power has a mean life of 300 hours with a standard deviation of 15 hours. What proportion of these batteries can be expected to have lives of 322 hours or
asked by Iris 
Math
I need to change this number to a percentage, rounded to the nearest tenth. 13501010/1010=.336633663 would the answer be 3%? this one is confusing to me for some reason
asked by Amy 
Physics
A positive and a negative charge, each of magnitude 1.0 105 C, are separated by a distance of 12 cm. Find the force on each of the particles
asked by Crystal 
Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.
asked by mm 
English
1. What is an easier way of stating "That the people have the right to elect their own Legislature" That the people can elect their own government. 2. What is simpler way of stating "That no act of the Dominion Parliament (local to the territory) be
asked by John 
6th grade Language Arts
We had a great difference of _______, we finally came (together) on the (opinion) that something needed to change so we made a _______ that each person could live with. I need to fill in the blanks that mean the same as the words in parenthisis. This is a
asked by Daniel 
chemistry
solve Ka for HX => H^+ + X^ given 0.1M LiX at pH=8.9 Chemistry  DrBob222, Tuesday, March 30, 2010 at 6:32pm LiX(aq) ==> Li^+(aq) + X^(aq) X^ is a base and hydrolyzes in water to X^ + HOH ==> HX + OH^ Make an ICE chart and substitute into the
asked by Larry 
Health
1. A 15year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've eaten something that has upset my stomach.: She denies vomiting and weight loss. The patient has noticed a weight gain of 10
asked by B B 
math
HI, I am having trouble working this problem. This is the question: Two measurements are given. Find the absolute difference and then find the rlative difference as a percentage. Assume that the first quantity is the compared value and the second qualitity
asked by Amy 
Titrations
How do I calcualte and what would my titration curve look like for a 25mL 0.1M H3PO4 solution titrated with 0.1M NaOh. The problem involves Ka and pKa values which i have, not sure how to use this information and make a graph out of it?
asked by Jerry 
math157PLEASE HELP
When the median and mean are substantially different, what does that tell you about the data?
asked by KiKi 
math
a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
asked by joelle 
calcrelated rates
"The volume of a cone of radius r and height h is given by V=1/2(pi)(r^2)(h)If the radius and the height both increase at a constant rate of .5 cm per second at WHAT RATE in cubic cm per second, is the volume increasing when the height is 9 cm and the
asked by James 
Math
In each case, determine whether the situation calls for a discrete or continuous random variables and explain your answer.
asked by Alex 
Statistics
How do you calculate the value of z* and t* on the TI84 and TI89 (the number used in confidence intervals)?
asked by Bob 
Math/Algebra
How do you find the are of a complex figure?
asked by Lila 
Chemistry
State three examples each of acids, bases, and salts commonly used in therapeutic processes. From the examples you state, select one acid, one base, and one salt and describe how and where they are used in therapeutic processes.
asked by Marlene 
Algebra
2x6y2/6+(3)but when I graph it all the points come out = to instead of > than. What am I doing wrong.
asked by Ben 
Chemistry
Explain the relation between muscles, ATP energy, and the calcium ion
asked by Marlene 
chemistry
solve Ka for HX => H^+ + X^ given 0.1M LiX at pH=8.9 Chemistry  DrBob222, Tuesday, March 30, 2010 at 6:32pm LiX(aq) ==> Li^+(aq) + X^(aq) Question for DrBob222  is the X^ value in the ICE calculations 0.1 from the initial LiX 0.1M? X^ is a base and
asked by Larry 
Algebra
Help! 13. Use the Distributive Property to simplify 7(6x^2 + 5x + 4) 15. Evaluate 5w^2 if w = .5 Is it 6.25? 19. Write a simplified expression to represent 5 times the sum of x and 3 increased by 10. Is it 10+5(x+3) ? Thanks MC
asked by mysterychicken 
Math
Sarah's mom made cookies for Sarah and her four friends. There's one cookie too many to divide evenly among the friends. Then two more friends showed up. Sarah gave her mom one cookie, which allowed Sarah to divide all the cookies evenly. How many cookies
asked by Antonio 
S.S
The Renaissance was a revival of classical____________ ideas. Please Help!
asked by Melea 
Microeconomics
Paint increase from $3.00 a gallon to $3.50 a gallon. The paint drops from 35 gallons a month to 20 gallons a month. Compute the price elasticity of demand for paint and show the calculations
asked by susie quick 
algebra
Provide an example of at least five ordered pairs that do not model a function. The domain will be any five integers between 0 and 20. The range will be any five integers between 10 and 10.
asked by Nikki 
confidentality in Allied health
I need help with my paper for confidenality in allied health. I have 8 questions and I'm not sure how I can use APA style with it. Please help me!
asked by peggy 
elementry/math accuplacer
This year Shannon spent a total of $91 on going to the movies. If she went to the movies 13 times, has much did each movie cost?
asked by Yolanda 
Science
Calculate the solubility in grams per 100 ml of water of potassium sulfate if 1.20 g of the solid dissolves in 10.5 mL of water at 20*C
asked by S.S 
Algebra
28. Use the Distributive Property to simplify x(4x^2 + x + 4) Is it 4x^3 + x^2 + 4x? Thanks MC
asked by mysterychicken 
geometry
If a hemisphere has a diameter of 8 feet what is its radius
asked by billy t 
Math
Factor each trinomial, if it cannot be factored, write prime. 2q²9q18 2*18=36 2q²3a12a18 1, 36 2, 18 3, 12 I can't get the rest of this problem, thanks.
asked by Mike 
Math
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.p and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is
asked by Iris 
STATS
Inferences about Two Proportions technique (Chapter 9): There is a claim that proportion of successes increased in 2009 compare to 2008. For data given in Table 1 Table 1 Number of cases Number of successes 2008 400 180 2009 500 235 Calculate pooled sample
asked by Mary 
Health
1. A 15year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've eaten something that has upset my stomach.: She denies vomiting and weight loss. The patient has noticed a weight gain of 10
asked by B B 
calckinematics
if a particle moves along a line so that at time t where t [0,pi] its position is given by s(t)=4costt^2/2+10 what is the velocity of the particle when its acceleration is zero? so i found v(t) = 4sintt a(t)=4cost1 = 0 solved for t plugged it into v(t)
asked by James 
Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.
asked by mm 
Probability/Stas
An instant lottery gives you probability of 0.023 of winning on any one play, which are independent of each other. If you play 6 times, the probability that you win on none of your plays is: The answer is suppose to be .8902, but I got 0.895. I took 0.23
asked by Dawn 
Africa
In western africa____ is welcome after heavy summer rain?
asked by Tamera 
american intercontinental university
* Rub your index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). * After a minute or two, rub the same finger over the paper and again rate its coarseness. Did your
asked by ingrid 
6th grade
San francisco became the first major city to limit smoking in the workplace
asked by Anonymous 
Pre Calculus
The electricity in your house is alternating current because the current varies sinusoidally with time. The frequency of sinusoid is 60 cycles per second. Suppose at Time = 0 seconds the current is at its max of 5 amperes. Write an equation expressing
asked by Kevin 
physics
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum
asked by Thomas 
Physics
Dirk pushes on a packing box with a horizontal force of 67.0 N as he slides it along the floor. The average friction force acting on the box is 5.10 N. How much total work is done on the box in moving it 2.20 m along the floor?
asked by Max 
Math
Use the law of cosines to find the angle Q between the given vectors. v = 3i + j w = 2i  j
asked by Hannah 
history
Coolidge was known as a supporter of big business. what are three examples?
asked by lacey 
Physics
You can get a sunburn on a cloudy day, but you can't get a sunburn even on a sunny day if you are behind glass. why?
asked by Carl 
9th grade
I need to factor this trinomial, but I can't figure it out. 2q²9q18
asked by Mike 
Digestive System
Pancreatic beta cells release insulin into the blood and INHIBIT the pancreatic alpha cells from secreting glucogon. What does inhibit mean in this context and is the insulin inhibiting or is it the beta cells?
asked by Lena 
STATS
Given a sample size of 18, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test. Null Hypothesis H0: ƒÊ = 700 Alternative Hypothesis H0: ƒÊ ‚ 700 At significance level 0.05 1. What is the
asked by Mary 
Math(Please help)
What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing =
asked by Mark 
Chemistry
solve Ka for HX => H^+ + X^ given 0.1M LiX at pH=8.9
asked by Larry 
Chemistry
Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are caused due to the differences between the sodium atom and sodium ion?
asked by Marlene 
Science
What compounds can be formed by combinations of potassium, lithium, chlorine, and/or bromine?
asked by Emmy 
Chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
asked by Marlene 
Chemistry
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
asked by Marlene 
instrument
What is the difference between a viola and a violin?
asked by naomi 
Chemistry
Can you please someone check my answer for me? a)Determine the number of grams in 0.750 moles of the compound Iron(II)phosphate: Fe3(PO4)2. Answer: b)How many atoms of iron are in 0.750 moles of the compound Iron(III)oxide? Answer:
asked by Anonymous 
CRT 205
is the following argument valid, sound or stong and what is the reason/rationale: Too many seniors, disabled veterans, and families with children are paying far too much of their incomes for housing. Proposition 168 will help clear the way for affordable
asked by Lo 
thermo
Consider a cylinder containing air at 1200 kPa and 350 C and then, the air is expanded to 140 kPa with a reversible adiabatic process. Calculate the speci c work (kJ=Kg) done by the gas. Assume calorically perfect gas.
asked by john 
math
ind the volume of the solid whose base is bounded by the graphs of y= x+1 and y= (x^2)+1, with the indicated cross sections taken perpendicular to the xaxis. a) squares b) rectangles of height 1 the answers are supposed to be a. 81/10 b. 9/2 help with at
asked by john 
human reources
Biographical information blanks are difficult for applicants to fake because?
asked by d 
Algebra
Need help with this: 34. Simplify a^2 x (a) x (a^5) Thanks MC
asked by mysterychicken 
Global Strategic Management
Research the Abercrombie and Fitch website. Using your research findings from the Library and the Internet, develop both an EFAS (External Factors Analysis Summary) table and an IFAS (Internal Factors Analysis Summary) table. The tables are to be submitted
asked by Heather 
English
1. I like the characters on the ship. Their actions were great. Their roles were fantastic. 2. I like the animation used in the movie. With the help of the animation, the movie became great. 3. I like the iceberg which was being broken. It was wonderful.
asked by rfvv 
Math
The slope intercept is 1/3 and the y intercept is 4xsquaredk. What is the slope intercept form.
asked by Jane 
9th grade math
I need to factor this trinomial, but I can't figure it out. 2q²9q18
asked by Mike 
To Ms. Sue
Ms. Sue could you please take a moment to look at my previous english post, thank you very much in return.
asked by Sara 
Math
Sam bought 1 of 250 tickets selling for $2 in a game with a grand prize of $400. Was $2 a fair price to pay for a ticket to play this game.
asked by Mikey 
Math
The game of dots is played by rolling a fair dice and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
asked by Jessica 
Mechanicsphysics
The acceleration of a particle is defined by a=e^(k(t^2)).its velocity is 2m/s at time=3s.Determine the value of k and velocity after 5s starting from rest.
asked by Aayush Vetwal 
Chemistry
How do I find how many moles are in 0.204 M potassium permanganate?
asked by Meg 
Socials Studies
Why did Riel and the Metis seize Fort Garry? Because it was closest to the Red River Colony and it provided a good place to setup the provisional government. Is my answer correct? If not please correct me. thanks.
asked by John 
Definiton
Define: Provincial Government Can someone help me?
asked by Jenny 
Chemistry
A middleaged man has been diagnosed as being at highrisk of developing Coronary Artery Disease. • State the chemical composition of the sterol that is present in high levels in most people who belong to the highrisk group. • Distinguish between the
asked by Marlene 
math
Make f the subject of the formula D = √(p/fp)
asked by Luke 
CALCULUS
gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
asked by JENNY 
prealgebra
Assume that triangle ABC is congruent to triangle XYZ. If AB=12cm and BC=15cm, what is the length of segment YZ?
asked by alondra 
5th grade
sometimes called the simplepredicate.
asked by devon 
Microbiology
If a culture starts out with 1000 cells and after 8 hours there are 64000 cells, how many generations have occurred? A. 4 B. 32 C. 6 D. 64 E. impossible to determine
asked by Shannon 
probability
P C 5 3 6 4 This the best I can reproduce it, but P and C have a black dot in between which means they are multiplied by each other.
asked by homer 
Chemistry
what is the symbol of the element with 4d^4?
asked by Jazmin 
social studies
Why might enslaved Africans be able to join in rebellion more easily in the city than the country?
asked by Alicia 
Critical thinking
More than forty years after President JFK’s assassination, it’s no easier to accept the idea tha a loser like Lee Harvey Oswald committed a crime of the century all by himself with a $12.78 mailorder rifle and a $7.17 scope. Yet even though two
asked by Tina 
8th grade algebra
what is the square root of 9x (to the power of 8) Explain too?
asked by joe 
Math
The rectangular prism has a height of 28 cm and holds exactly 360cm cubed. What is the length and width using the formula lwh?
asked by Zach 
Critical Thinking
Need help with identifying argument and reasoning for Having your car washed at the carwash may be the best way to go, but there are some possible drawbacks. The International Carwashing Association (ICA) has fought back against charges that automatic
asked by Anonymous 
writing
create a outline sentences between culture differences
asked by ellan 
biology
what is nucleotide?
asked by joy 
5th grade
How do i make a frequency table?
asked by Hannah 
physical
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum
asked by Thomas 
math
A drawing of diagonals for four different polygons is listed below. What is the number of diagonals for a 100sided polygon?
asked by dan 
English
* I like watching ___________. musicals/movies/plays/dramas/performances. (What other things can we use in the blank as kinds of art? Would you name some more things?)
asked by rfvv 
IT
If I have a steel cable pulling 5 degrees from straight down by 1500lbs. This cable goes up to the top of a 10 foot pole and is attached. Then I have a cable going out 20 feet in the opposite direction back to the ground. How many lbs. of force will be
asked by Frank 
Chemistry
At a prominent state hospital, a 45yearold woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer
asked by Marlene 
Chemistry
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. • Explain the chemical
asked by Marlene 
apcehmistry
A thin metal sheet is composed of Fe and Co How do you ionize Fe to Fe2+ but not ionize Co ? I tiried using the activity series of metals, but Fe is above Co, so anything that would ionize Fe would also ionize Co right? So what JUST ionizes Fe but not Co?
asked by Kiki 
computers
You’re asked to design a network for use in a training environment. It should be mobile, easy to set up, and simple tear down. Speed is not an issue. Develop a network design that accommodates these requirements and keeps costs down.
asked by Anonymous 
Science
what are ways plants can conserve water
asked by Tyler 
spelling
man :woman :: curved
asked by brittany 
Math
Please double check me. Terry went on a 60 mile canoe trip. on first day, he traveled 21 miles. what percent of the total distance was that? 35%
asked by Amy 
penniman
what is the estimate quotient for 233 divided by 6?
asked by steven 
world geography
I am doing project about Japan what is historical landmarks means?what to write ?
asked by marie 
4th grade
tawny bedroom is a rectangele that is 12 long and 9 feet wide. if tawny puts a wallpaper border around the entire perimeter of the room how many feet will she need
asked by oshane 
chemistry
how many outer electrons are there in [Ar] 4s^1?
asked by Jazmin 
English
1) Yesterday you told me that "at" was possible in the sentence "He raised his sword and gave a mighty blow at the beast". Are you sure you can't use it? Are both "He gave the beast a mighty blow" and "he gave a mighty blow to the beast" possible? Thank
asked by Franco 
Algebra
factor 25x^215x18
asked by Rebecca 
STATS
X 3, 5, 6, 8, 9, 10, 12, 14, 15 Y 30,33,34,36,37,40, 50, 60, 70 Calculate Linear Correlation Coefficient r Use significance level 0.05 and Appendix Table A6 to make decision about linear correlation between x and y.
asked by Mary 
debate
Should extracurricular activities become curricular activities? Why or why not?
asked by swiss 
Math
half of some number times 5 divided by another number. I have to put this into an expression. 1/2 * a * 5 / b or .5 * a * 5 / b Is this correct?
asked by Sarah 
6th grade
states what the subject does is or has in asentence.
asked by devon 
math
87sec for 1\3 mile how much time for 5miles
asked by sakina 
Chem
Why does magnesium and beryllium form metallic as opposed to saline hydrides?
asked by kim p 
English
Can you please tell me which of the following two prepositions is best? 1) Beowulf gave a blow to the beast or at the beast ( with his sword)? Thank you
asked by Franco 
staticitics
3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is
asked by Anonymous 
calculus 1
find the interval at which the function increases and decreases x^3\3 +x^2\2 +x +100
asked by Anonymous 2 
confidentiality of health information
which discovery tool would be especially appropriated to use against a plaintiff claiming physical injuries that the defendant believes are being faked?
asked by chira 
math/accuplacer
The principals is buying pizza for the schoolwide pizza party. If there are 1852 students in the school & each student in the school & each student can eat approximately 3 slices of pizza, estimate the 3 of slices the students will eat in total.
asked by Eli 
college
The minimum daily values (MVD)for certain foods are given. They are based on a 2,000 calorie day diet. Find decimal and fractional notation for the percent notation in each sentence. (a) 1 ounce of Tostitos provides 9% of the Mdv of fat. (c)1/2 cup of
asked by harold 
Englishhelp please
Could someone please take a moment to take a look at my previous post on English. Thank you very much:)
asked by Sara 
10th grade
The slope intercept is 1/3 and the y intercept is 4xsquaredk. What is the slope intercept form.
asked by Jane 
phi105
write a 350 to 700 word response to the followin question  how has your view concerning the topic you covered in your final project through out thiscourse. my project is on the what is the purpose of existance.i don't know how to sta it off or what i
asked by trudy 
5th grade
what is electrically neutral matter
asked by derrica cooley 
math
PLS help! I've try to solve it but it's not working .. solve the inequality... x/3 > +2 x/6
asked by Katherine 
Math
computing grades. the fith test counts as double ( and i got the answer 74, so how much would it be as double?. thanks!
asked by Joe 
liteature
discuss the theme of creatingart developing in the different stories and poesm
asked by Anonymous 
english
I am to write a definition paragraph and was wondering if this was ok? A comedian is a professional entertainer who will tell jokes or perform various other comic acts. Comedian is a male comic while comedienne is a female comic. Comedians can be
asked by deborah 
3rd grade
4 p;ennies in 2 lines 3 cents in each line how is this problem solved?
asked by kaylen s 
social studies
how do reform leaders today try wo win support for their causes? thanks
asked by roy 
english
i want to write an essay about environmental issues.please help me
asked by burhaan 
history
the 1928 election brought in_____________.
asked by laceyy!! 
Math
DOes a line have one or 2 arrows?
asked by Hannah 
math
whom should you see at the bank if you need to borrow money?
asked by Oscar 
corporation tax
FACTS: Rachel was your college roommate. After graduating, she started her own business, a bakery and deli that has become the most popular and successful bakery in town. She hears that you are now a CPA handling business tax clients, and comes to your
asked by jue 
math
13(x4)=2(3x+1)7
asked by anonymous 
world geography
what the difference between landforms and historical lanndmark
asked by marie