Questions Asked on
September 16, 2011

calc
Nutrition Ruff, Inc. makes dog food out of chicken and grain. Chicken has 10 grams of protein and 5 grams of fat per ounce, and grain has 2 grams of protein and 2 grams of fat per ounce. A bag of dog food must contain at least 224 grams of protein and at
asked by liz 
STATS
The top selling Red and Voss tire is rated 70,000 miles means nothing. In fact, the distance the tires can run until they wear out is a normally distributed random variable with a mean of 82,000 miles and a standard deviation of 6,400. a. What is the
asked by SANDRA 
Chemistry
A 1.547g sample of blue copper(II) sulfate pentahydrate, CuSO4*5H2O, is heated. The white crystals of CuSO4 that are left behind have a mass of 0.989 g. How many moles of H2O were in the original sample?
asked by Anonymous 
Finance
You can deposit 10,000 into an account paying 9% annual interest either today or exactly 10 years from today. How much better off will you be at the end of 40 years if you decide to make the initial deposit today rather than 1o years from today?
asked by Sky 
Physics
A transmission diffraction grating with 600 lines/mm is used to study the line spectrum of the light produced by a hydrogen discharge tube with the setup shown above. The grating is 1.0 m from the source (a hole at the center of the meter stick). An
asked by AfterLife 
science
the height above the ground of a child on a swing varies from 0.5m at the lowest point to 2.0m at the highest point. what is the maximum speed of the child?
asked by Anonymous 
Physics
Suppose two thin flat plates measure 3.5m x 3.5m and are separated by 6.5mm. They are oppositely charged with +20microCoulombs. Estimate the total force exerted by one plate on the other (ignore edge effects).
asked by Sarah 
chemistry
how do you determine the last digit in any measured number?
asked by Tracy 
physics
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.95 m above. The brother's outstretched hand catches the keys 1.80 s later. (a) With what initial velocity were the keys thrown?
asked by Carolina 
physics
A cat is being chased by a dog. Both are running in a straight line at constant speeds. The cat has a head start of 3.3 m. The dog is running with a speed of 9.0 m/s and catches the cat after 6.7 s. How fast did the cat run? I see that the velocity and
asked by angela 
physics
A point charge of 8.4 µC is at the origin. a)What is the electric potential due to this charge at (x,y) = (3.5 m, 0 m) b) What is the electric potential due to this charge at (x,y) = (3.5 m, 0 m) c) What is the electric potential to this charge at (x,y)
asked by sonia 
physics 8b
A piece of wire with mass per unit length 88 g/m runs horizontally at right angles to a horizontal magnetic field. A 6.5A current in the wire results in its being suspended against gravity. What is the magnetic field strength? Express your answer using two
asked by help 
Sociology
Q. Jane is thirteen and a middle school student. At her age the most important agent of socialization in her life is likely to be the: a)community b)peer group c)media d)school i think its b. please help me
asked by help 
Math word problems
Jessie finished the first race in 2 minutes 7 seconds. Tim finished 12 seconds faster than Jessie. Juan finished 8 seconds faster than Tim. How long did it take Juan to finish? 2.07  0.12 = 1.95 1.95  0.08 = 1.87 Juan finished at 1.87?
asked by Mia 
economics
Why do longrun elasticities of demand differ from shortrun elasticities? Consider two goods: paper towels and televisions. Which is a durable good? Would you expect the price elasticity of demand for paper towels to be larger in the short run or in the
asked by aaniya gill 
business english
paragraph 2 Background Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans apply at similar stores in your town. but you also
asked by henrietta 
algebra
An airplane flies from City A in a straight line to City B, which is 70 kilometers north and 140 kilometers west of City A. How far does the plane fly?
asked by Anonymous 
Math
Write each expression as the product of two binomials. 1) a^3  3a^2 + 3a  9 2) 2x^2  3x^2  4x + 6
asked by Camile 
Math
A manufacturer uses a 28 x 41 metal sheet to construct an open box by cutting out squares from each corner. What length square should be cut to maximize volume?
asked by Terry 
World Lit
Define the characteristics of the Epic Hero
asked by Jackson 
Statistics
The lifetime of television produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacture wants to have to replace only 1% of its televisions, what should its warranty be?
asked by Karen 
accounting
I have tried to figure out how to do this for four days and my textbook does not give an example on how to do this problem. LowerofCostorMarket Corrs Company began operations in 2007 and determined its ending inventory at cost and at lower of cost or
asked by Nick 
calculus
For what values of a and b that make the function f continuous everywhere. f(x)={(x^24)/(x2) if x
asked by Derrick 
Chemistry
For the following acidbase reaction, calculate the mass (in grams) of each acid necessary to completely react with and neutralize 5.00 g of the base. HCl(aq)+ NaOH(aq)>H20(l)+NaCl(aq) Please explain how to do this.
asked by Brittany 
Trig
2sin^2(x) = 2 + cos(x) interval [0,2pi) How do I solve this? Help would be greatly appreciated!
asked by Wendy 
physics
A cannon is fired horizontally from a platform (see figure). The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the shell (mass 3.0 kg) has an acceleration of +2450
asked by angela 
Chemistry
I have this question and I am pretty sure on what to use to solve it but I am just stuck. The reaction of 8 g of hydrogen and 28 g of carbon monoxide gave 16 g of methanol. What was the theoretical yield if the percent yield was 50%? actual yield
asked by Justin 
english
I need help writting a discussion on why the follow paragraph is effective including variety and rhythum of the author's writing:Individuals can be denied credit for a number of reasons. Individuals who are near limits on existing cards, have too much
asked by lo 
math
use a scatter plot to determine the relationship between the x values and the y values. x 7 2 4 5 1 6 3 7 5 26 20 15 30 12 25 possible answers: negative linear relationship nonlinear relationship no relationship positive linear relationship thanks for your
asked by kk 
physics
A train moving with constant velocity travels 190 m north in 12 and an undetermined distance to the west. The speed of the train is 36 m/s. Find the direction of the train's motion relative to north.
asked by anonymous 
math
ok the directions say.. "using different scales,make either two line graphs or two bar graphs for the set of data.use a break symbol in only one of the graphs.explain which graph shows the data more clearly. "data" ___________________________________ year
asked by SJH all the way_<3 
Precalculus!
So I have this major assignment due, and I cant seem to figure this one out: A right triangle is formed in the first quadrant by the x and yaxes and a line through the point (5, 3). Write the length L of the hypotenuse as a function of x(the xintercept
asked by kajal 
physics
Hello, can anyone help me this problem? The author's cat enjoys chasing chipmunks in the front yard. In this game, the cat sits at one edge of a yard that is w = 32 m across (see figure), watching as chipmunks move toward the center. The cat can run faster
asked by jordan 
Math
Use the distance formula to determine whether the points lie on the same line. (0,4),(7,6),(5,11). I know the distance formula, but I don't see how that will help me find out if they lie on the same line.
asked by Christina 
chemistry
B. Everyone knows that water is supposed to boil at 100° C. Why did your water sample boil at a different temperature? C. While heating two different samples of water at sealevel, one boils at 102o C and one boils at 99.2o C. Calculate the percent error
asked by emmanuel 
physics
ok i have a problem to work on in my new course, and i was wondering what i need to do to tackle it. the question is as follows: An electron is projected with an initial velocity Vo=10^7m/s into the uniform field between the parallel plates "E". the
asked by mo 
calculus
Find the value of the constant C that makes the following function continuous on (infinity, +inf) f(x)={cx+2 if x is in (inf,2] cx^22 if x i in (2, inf)
asked by Logan 
physics
A thief is trying to escape from a parking garage after completing a robbery, and the thief's car is speeding (v = 14 m/s) toward the door of the parking garage (see figure). When the thief is L = 31 m from the door, a police officer flips a switch to
asked by simi 
physics
A ball is thrown upwards and returns to the same position. Compared with its original speed after release, its speed when it returns is about
asked by Anonymous 
Statistics
X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?
asked by Joi 
Physics
One can get a good idea of how deep a well is, for example, by dropping a rock and listening to how long it take to hear the rock as it hits the bottom. Suppose a rock was dropped into a well that was 410 meters deep and after the rock hits the bottom, a
asked by Jeff J. 
algebra
the number of students is 150 more than adults, the student tickets are $3 and adult tickets are $5 the total sales was 4730 how many students attended
asked by heidi 
College Chemistry I
A method for recycling scrap aluminum converts it to alum [potassium aluminum sulfate dodecahydrate, KAl(SO4)2·12H2O]. What is the maximum amount of alum (in metric tons) that can be prepared from 3.12 metric tons of scrap aluminum (1 metric ton = 1000
asked by Aha 
physics
A 4.62 x 105 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop has fallen 83.7 m, what is the work done by gravity? Answer in units of milliJoule (a thousandth of a Joule) and use 9.8 m/s2 for
asked by hannah 
calculus
For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x
asked by Aly 
calculus
For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x or =2
asked by Aly 
Biology
3. The ABO blood type is controlled by a single locus, called I, with alleles IA, IB, and IO. These give rise to the blood type phenotypes, A, B, AB, and O. a. Suppose that parents know their phenotypes: the father is type AB and the mother is type O. What
asked by kay 
science
how many liters of oxygen will react with 124.5 liters of propane
asked by david 
physical
QUESTION 4 [18] Two long currentcarrying wires are shown in Fig 1. They are carrying the same current I which are pointing in opposite directions. Their separation is s. A field point Q lies in their plane, a distance ñ from their midline. 4.1 Find the
asked by Anonymous 
Biology
Typically we talk about blood types as Bpositive or ABnegative and so forth. The positive and negative part of the blood type is determined by a completely separate gene (the Rh locus). The ABO locus and the Rh locus are inherited independently, like pea
asked by kay 
geometry
Find all points that are 24 units from the point located at 31 on a number line. A. 24 and 31 B. 31 and 7 C. 24 and 55 D. 7 and 55
asked by Anonymous 
Physics
On the earth, you throw an object up in the air at some velocity, v, and it reaches a maximum vertical displacement (max. height if you prefer) of 4.8 meters. If you went to the moon, where the value of the gravitational acceleration of the moon is 1/6 of
asked by Micheal G. 
calculus
The limit as x approaches 0 of ((4^x)1)/x The limit above represents the derivative of some function f(x) at some number a. Find f and a.
asked by Logan 
ap history
please explain the rise of class conflict between business and labor in the 1870s and the growing hostility to immigrants especially chinese i tried to google it but not much explanation. please HELP HELP HELP! THANK YOU SO MUCH!
asked by heather 
science
WRITE, in no less than 300 words, a brief summary tracing the nutrition needs of both a man and a woman throughout the various stages of life. Address the nutritional needs for the following: Infants Teenagers Adults Women during pregnancy Older adults
asked by mary 
Physics
Can someone please show me step by step how to normalize e^5x in the interval (0, infinity)? I have read a lot of different books etc but need it explained to me in plain English or showed to me step by step because I am just not getting it. Thank you
asked by Tammy 
physics
A 0.05 kg toy is made up of a spring of constant 466 N/m. When you place the toy on the floor, cock the spring 5 cm and release it, the toy jumps upwards. What is in Joules the spring potential energy stored in the toy when sitting on the floor with a
asked by hannah 
PHYSICS
A CRATE OF MESS 50KG IS LYING ON A 30DEGREE INCLINE, A STEEL BALL OF MASS 20KG IS ATTACHED TO THE CRATE WITH A ROPE.THE ROPE IS GOING OVER A FRICTIONLESS PULLEY.CALCULATE THE FRICTION COEFICIENT NEEDED SO THAT THE 50KG BLOCK STAYS AT REST.
asked by MORENA 
chem
150 cm3 0.24 M naoh solution react with excess al(no3)3, calculate the mass of saodium aluminate produced. al(no3)3 + 4naoh > naalo2 + 3 nano3 +2h20 i got 0.738g.. is my answer correct? if im wrong could u show me the calculation?
asked by Yuni 
Algebra
I solve this equation by the substitution method 7x4y=13 x=3 and I got y=2 and x=3 am I right. Thanks
asked by Al 
Physics
You lean over the edge of a building that is 106 meters above the ground and throw an object straight upwards. This object takes 3 seconds to reach its maximum vertical displacement above your hand and then falls to the ground. From the moment it leaves
asked by JJ 
physics
you throw 2 balls at a bunch of pins. is it better to throw a putty or rubber ball?
asked by cody 
spanish
Please translate these words into a sentence. bebur, manuel, debe, aqua
asked by Kathryn 
physics
A compact disc spins at 2.3 revolutions per second. An ant is walking on the CD and finds that it just begins to slide off the CD when it reaches a point 3.5 cm from the CD's center. What is the coefficient of friction between the ant and the CD?
asked by Jack 
physics
It takes 9.10 J of work to stretch a spring 5.10 cm from its unstressed length. What is the spring constant k in N/m?
asked by hannah 
SIGS FIGS
WHAT ARE SIG FIGS
asked by David 
calculus
The limit lim as x approaches 1 of (x^121)/(x1) represents the derivative of some function f(x) at some number a. Find f and a.
asked by Logan 
Politics?
Hello! I have to write an affirmative congress speech on this bill, but I'm not really sure about what the bill means..? Can anyone help me figure out what it's talking about/what I'm trying to affirm? "A resolution to promote justice and human rights in
asked by michelle 
calculus
For what values of a and b that make the function f continuous everywhere. f(x)= {x−2x2−4 if x
asked by Nik 
Algebra
I'm really lose with this problem...HELP Using Cramer Rule If D=O use another method to solve 2x/35y/2=3/2 x/4+5y/2=7/2 I don't know where to begin on how to solve this problem.
asked by Gwendolyn 
math
explain why the second partial product is always greater than the first partial product when you multiply a 3digit number by a 2digit number.
asked by stephanie 
Trigonometry
Solve. 2sin(2ƒÆ) + ã3 = 0 interval [0, 2ƒÎ) How do I start this? I feel like maybe Trig Identities, but I'm not really sure.
asked by Josh 
Geometry
If PT=3x4 and QS=4x3 how do I solve
asked by Charlie 
Physics
When the sun was directly overhead in Syene, why was it not directly overhead in Alexandria?
asked by Alex 
Ashford
Factors such as temperature, humidity, and air movement make it easier to analyze and measure air pollution. True or false
asked by Darrell 
Physics
It takes 7.9 J of work to stretch a spring 4.6 cm from its unstressed length. How much (in J) spring potential energy is then stored by the spring?
asked by Elisabeth 
history
Who ruled over Babylon's last era of greatness
asked by Maria 
calculus
consider the function f(x)=(36x^2)^(1/2) whose graph describes the upper semi circle with radius 6 centered at the origin.let a be any number in the open interval (6,6).for a not equal to 0 determine the slope of the line through the origin and the point
asked by Anonymous 
chemistry
Somewhat confused... my homework is asking me to calculate morality of sodium thiosulfate from a 55 ml solution. the sodium's volume is 50 ml and has a concentration of 0.25M. The rest of the 55ml comes from the 5ml of HCL.
asked by Molarity 
math
i purchased an item for $10.86 and the sales tax was 8.625%. What was the cost before taxes?
asked by jerry 
Algebra
Need help with this problem Substitution 5x3y=11 (1) 3x+2y=1 (2)
asked by Al 
computer
what is the difference between a compiler and and interpreter? is the interpreter used for C ?
asked by Sia 
chem (urgent)
Can someone please explain to me in simple terms what the eutectic point and temperature are?
asked by laura 
english
When Marcos walked into the room, we turned on the lights and yelled "Happy birthday!"
asked by kayla 
Algebra II
y=u+1/u+2 solve for "u". Please help me :)
asked by Gaby 
Math
Factor  12x^2+10x+1
asked by Sally 
physics
A 0.730 kg particle has a speed of 3.00 m/s at point A and kinetic energy of 7.40 J at B. What is its speed at B? Answer in units of m/s.
asked by hannah 
Com/155
How do I come up with a good topic sentence to explain how the purpose, audience,tone, and content impact academic writing?
asked by Amanda 
Biology
In a mouse cell at the start of mitosis, how many chromatids are present?
asked by kay 
statistics
What is the relationship between Sample Size and the width of the Confidence Interval? Please explain further as to why
asked by denise 
algebra
5x+3>2 please help me solve and when graphing it could you describe what it would look like? i know it would have open circle, but is it and "and" or "or" inequality.
asked by Lucy 
Algebra
solve equations by elimination 2x6y=3 (1) 4x+9y=1 (2)
asked by Al 
science
A 10 nC charged particle has a velocity v=3i+4j+5k ms1 as it enters a magnetic field B=10000Tj. Calculate the force vector on the charge. What electric field intensity is required so that the velocity of the charged particle remains constant?
asked by justina 
history: please help for a survey
what is your reaction on the first and second opium war?
asked by Mely 
Essay Paper
I am writing a research paper on "Teen Parenting" and I'm writing about it in a good way. But I'm trying to figure a a REALLY REALLY good introduction sentence. Help Please Mine: It is possible to be a wonderful mother at any age.
asked by Lynn 
social studies
what is the constitution
asked by Nicole 
Genetics
1) The F2 progeny from a cross exhibits a modified dihybrid ratio of 9:7 instead of 9:3:3:1. What phenotype ratio would be expected from a testcross of the F1 progeny? 2) In Drosophila, mutants a through g all have a white eye phenotype. The following data
asked by AJ 
maths
A circle has a circumference of 1 Cm and an equilateral triangle has sides each 1 Cm long. How many complete turns of the circle will it take to go around the triangle to its original starting position.
asked by jojo 
physics
There are Two boxes on top of each other. The top has a mass of 2.99kg the bottom one has a mass of 7.89 kg. A horizontal force of 39.97 newtons is applied to the left to move them both at an acceleration of 1.42m's^2 Find the minimum coefficient of static
asked by squires 
physics
It takes 5.50 J of work to stretch a spring 5.90 cm from its unstressed length. What is the spring constant k in N/m?
asked by hannah 
calculus
Follow this link please! It is an interactive question that I just cannot figure out webwork.math.nau.edu/webwork2/CFisher_136/Continuity/3/?user=aed73&effectiveUser=aed73&key=KwyySMKGHvKe32dogu0ViC6rI90u7iI9&displayMode=jsMath&showOldAnswers=1
asked by Aly 
math
1.05^30
asked by Vic 
psychology
describe the frequency theory and the place theory of hearing
asked by rumunda 
What is your opinion
What films or t.v. programs do you feel depict western influence in Asia?
asked by Ana 
math
how to write acheck in words for one thousand sixty
asked by yvette 
ALGEBRA
CAN SOMEONE HELP ME WITH THIS PROBLEM WHAT IS THE RANGE FOR THE FUNTION GRAPED AS SHOWN? Y=2X2+4X DON'T UNDERSTAND IT...
asked by KK 
Algebra
64p+28
asked by Lana 
science
The making of the nuclear reactor was an advance in
asked by sandra 
priciples of business
how to make a project presentation on , International Organization Enviornment
asked by myra 
physics
Amy threw a ball of mass m=0.79 kg horizontally with an initial velocity v=33.4 m/s from a height h=1.9 m. What is the kinetic energy of the ball just before it touches the ground? Express your answer in Joules and use 10 m/s2 for g.
asked by hannah 
math
what is 2011 minus 1947
asked by shasa 
physics
A 0.05 kg toy is made up of a spring of constant 466 N/m. When you place the toy on the floor, cock the spring 5 cm and release it, the toy jumps upwards. What is in Joules the spring potential energy stored in the toy when sitting on the floor with a
asked by hannah 
physics
A 0.07 kg toy is made up of a spring of constant 375 N/m. When you place the toy on the floor, cock the spring 7 cm and release it, the toy jumps upwards. What is in Joules the mechanical energy of the toy when sitting on the floor with a cocked spring?
asked by hannah 
English
I was very tired, but it was great to be in Antarctica. Everything was covered with snow. It was so beautiful. (What does "It" refer to in the last sentence? Does it refer to 'Antarctica' or 'everything' or 'snow'?)
asked by rfvv 
Algebra
(2/7x^2+7x^2y4y^3)+(7/6x^22/5x^2y^2+5y^3)
asked by miranda 
What is your opinion
Do you feel that there are other conflicts even today where the West are imposing themselves on other countries/Cultures?
asked by Ana 
Calculus
proof that the limit as x approaches 2 of x to the 4th equals 16
asked by Greg Gilchrest 
social studies
what is the capital of mexico
asked by Nicole 
algebra
p^2+p+4=0
asked by jennifer 
training
may i know whats the training program for a call center to deal with customer service? thank you
asked by oBun