
life science
in what parts of the plant body would you expect cell division to occur? i've looked everywhere and couldn't find anything close to an answer!
asked by nat on October 24, 2008 
Calculus
(x^2+y^2)^2=16y Find all values of x where the tangent line is vertical I found the derivative and looked for where it was undefined but it didn't work
asked by Henry on October 10, 2015 
PLEASE HELP
with the following problem: A wagon was used to move a 90 lb rock 120 yds. It took 40 seconds and 70 lbs of force. Find Horsepower and Efficiency % THANKS.
asked by Heather on December 11, 2007 
History
In the Spanish Civil War didn't the Republican and Nationalist have different flags? The only one I can find has red, yellow, and purple with an emblem on it. Thanks
asked by Sue on September 6, 2008 
Maths
Find the number of ways of forming an executive committee of 4 in a social club consisting of 15 members, if a particular man must be in the team
asked by Zee on December 11, 2016 
word clues
a slight suspicion or hint. _ _ k _ ing When you find a word you don't know, try a good dictionary. If it is not there, then try a Thesaurus for a synonym. This one is "inkling."
asked by malibu on January 15, 2007 
n&w
is it possible to make your own electrolyte drink at home? how? (hint: lemons and sea salt) i looked on google but i didn't find much... thanks
asked by y912f on July 16, 2009 
Calculus
Find the points on the curve y=x2+2 closest to the point (0,3). Enter the coordinate with the smallest xvalue first and round to the nearest 4 decimal places.
asked by Mark on November 5, 2015 
geometry
In Exam Figure 7, AA′ = 33 m and BC =7.5 m. The span is divided into six equal parts at E, G, C, I, and K. Find the length of A′B. Round your answer to two decimal places.
asked by debbie on August 19, 2012 
U.S. History
Where can I find statistics for the Trail of Tears? I've found plenty of generalizations and estimations, but I would also like to know how many white army people went along and how many of them died.
asked by Anonymous on December 11, 2007 
trig
Point P is located at the intersection of a circle with a radius of r and the terminal side of an angle q. Find the coordinates of p to the nearest hundreth. q = 60° , r = 7
asked by kt on October 12, 2009 
math
i need help with just one question, and if i get it, ill be able to do the rest. Okay so its saying let height of a box be 4x+1, width be x3, and length be 2x. Find the volume. So what do i do? how do i start solving this? its polynomials
asked by bill on May 23, 2011 
sinusoidal functions
State an equation of a sinusoidal graph with the following properties. The central axis is at y = 5 Two consecutive minimums are found at (3, −1) and (13, −1 find values for a,b,c and d
asked by jordan on February 6, 2016 
physics
a man 60 kg skating with a speed of 10 m/s collides with 40 kg skater at rest and they cling to eachother. Find the loss in kinetic energy?
asked by star on June 4, 2012 
Calculus with Analytical Geometry
Find the present value (PV) of the annuity with each payment of $3500 at the end of each year for 3 years in an account that pays 6% compounded annually.
asked by Sherianna on February 6, 2016 
Science physics
The least count of a screw gauge is 0.001cm the diameter of a wire measured by it is 0.225cm. Find out the percentage error in this measurement
asked by Kanika on June 18, 2016 
math
Given: f(x)=x^21 Find a simplified form of the difference quotient. I will be happy to critique your thinking. I am not going to do it for you. The link I gave you shows you how. Is it set up like this 1(x+h)^2  1(x)
asked by dee on February 9, 2007 
math
I Wanted To Find The Square Root Of (12i) But I Didn't Know How To Solve It. My Solution : x+yi = sqr(12i) x2y2+2xyi = 1 2i x2y2 = 1 2xy = 2 y =  1/x x2  (1/x) = 1 ] * x2 x4x21 = 0 How To Evaluated (x4x21) ? I Tried To Sol
asked by jack on October 16, 2011 
physics
how does mass energy relate to the hydrogen bomb? i can't find anything that simply explains this to me and i need6 it for a powerpoint presentation tomorrow please help.
asked by i need help please on February 13, 2011 
french
Hi I have an assignment where I need to find facts about Paris. I don't want ho hum stuff with statistics, I want an interesting quirky fact. Does anyone know any off hand? Thanks!!
asked by Coralia on September 22, 2008 
Math
Find the compound interest on rs 64,000 for 1 year at the rate of 10% per anum compounded quarterly. Could you please do it fast I need to give it tomorrow.
asked by Sana on December 10, 2016 
Math
my son was asked to find each product by factoring the tens, and to draw rectangles if needed to on 6x2, 6x20, and 6x200. I'm not sure how to do this. please help me
asked by Andrew on September 28, 2015 
Physics
I never learned how to do these... An electron moves from one plate of a capaci tor to another, through a potential difference of 2495 V. a) Find the speed with which the electron strikes the positive plate. Answer in units of m/s. If a proton moves from
asked by christy on February 16, 2010 
ALGEBRA
I HAVE TO SOLVE THE FOLLOWING PROBLEMS FOR AN ALGEBRA ASSIGNMENT DUE SUNDAY. I HAVE FIGURED OUT MOST OF THE ANSWERS BUT AM STUCK ON A FEW. IF ANYONE CAN TELL ME IF MY EXISTING ANSWERS ARE CORRECT AND POINT ME IN THE RIGHT DIRECTION/GIVE ME A HINT ON THE
asked by Nicki on January 23, 2008 
Trig Math
Arc Length Stuff: Have you ever wondered what the circumference of the Earth is? Well, at the Equator, the distance around is about 25000 miles (assuming the Earth is a sphere). What if you wanted to know the distance around at any latitudinal location?
asked by Rainy Days on February 27, 2018 
Math
Apples are sold in cartons of 25. David bought home 2 cartons an found 3 rotten apples in the first carton. There were thrice as many rotten apples in the second carton. 1. Find the probability of randomly selecting a good apple from carton 2. 2. If 2
asked by StuartKess on September 7, 2011 
English
I need the help of your science experts to find a topic for a common science project to be carried out in English among three different schools. My question to you and your science experts is number 5. We need to find a project students can work on for two
asked by Henry2 on December 20, 2011 
physics
A small 5.00kg brick is released from rest 2.00m above a horizontal seesaw on a fulcrum at its center, as shown in the figure below . (radius of horizontal seesaw is 1.6m) a.)Find the angular momentum of this brick about a horizontal axis through the
asked by Anonymous on December 15, 2009 
Physics, still don't get it!
The drawing shows a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at its end, which is h = 0.52 m above the ground. When she leaves the track, she follows the characteristic path
asked by Mary on February 28, 2007 
English
1. There are four kinds of stick food in the passage on this page. Can you name the kinds of stick food?  They are meat sticks, fruit sticks, insect sticks, and even starfish sticks. 2. What kinds of stick food can you find on Wangfujing Street?  We can
asked by rfvv on June 3, 2015 
Algebra I
1. Imagine you are at a gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation a. What does the number 3.03 represent? b. Find C(2). c. Find C(9). d. For the average
asked by stephaine on August 14, 2010 
Elementary Stats
A box contains two red balls, four green balls, and two white balls. You extract balls from the box with replacement 100 times. Eachh time you extract a red ball, you win $1; a green ball, you lose $0.50; a white ball, nothing happens. Make a box model of
asked by Timmy on October 26, 2016 
spanish
can someone plz translate this sentence: Si no, dime: qué mayor contento puede haber en el mundo, o qué gusto puede igualarse al de vencer una batalla y al de triunfar de un enemigo? Thank y ou for using the Jiskha Homework Help Forum. Yes, I can
asked by mikayelle on May 2, 2007 
Chemistry
A(g) + B(g) AB(g) At a given temperature 1.0 mole of A and 1.0 mole of B are placed in the 1.0 litre vessel and allowed to reach equilibrium. Analysis revealed that the equilibrium concenration of AB was 0.40 molar. What percent of A had been converted to
asked by Janna on May 16, 2007 
history
Can you check this?: I have to # the order in which they occured. 10The Lewis and Clark expedition leaves St. Louis 8Thomas Jefferson authorizes Robert Livingston to offer $10 million for New Orleans and West Florida. 5Meriwether Lewis and William Clark
asked by Mack on April 26, 2007 
physic
A ball is dropped from the top of an apartment building. A person is on a patio somewhere beneath the top of the apartment building and the person notices the ball takes 0.11 seconds to fall from the top of his patio to the bottom of his patio. The height
asked by elle on September 24, 2015 
Physics
The Earth has an electric field with magnitude roughly 100 N/C at its surface. A) Assuming there is a point charge at the earth's center creating this field, how much charge does the earth posses? Treat the earth as a sphere of radius 6.37 * 10^6 m. B)As
asked by jenish on March 6, 2008 
Calculus
In 1979, a biologist Reto Zach published a study on how crows drop whelks, a type of mollusk, from a height that minimized the amount of energy spent to break open the shells. Drop from too low a height, and the bird has to pick the shell up many times
asked by Bob on March 1, 2017 
math
1. Rosa, Roberto, Andrea, and Inno find an estimate for the square root of 10. Who has proposed the best solution? a. Rosa: "Use the sqaure root of 9 and the square root of 25 to estimate." b. Roberto: "I will use the square root of 4 and the sqaure root
asked by steve on September 25, 2012 
Maths
1) Factorise x2 6x +8 (the 2 is squared) 2) Hence solve this equation: x2 6x +8 = 0 Also, what would the line look like on a graph with the equation y = 10/x Thankyou =) 1) x^2  6x + 8 factors are: (x  2)(x  4) >look for possible factors of 8 and
asked by Amy on January 8, 2007 
Statistics
I have completed 6 questions but after 2 hours still cannot do these 4 questions. Please help 1) Jane is playing a game of Monopoly, if she throws six on her next turn she will land on community chest. If she throws eight she will land on Mayfair with a
asked by Barry on June 28, 2017 
Math
How do I figure out the height of a triangle? The height of a triangle is defined as the perpendicular distance from an angle to a side. Now, since this is a right triangle, and depending on how it is situated, the height could be 10" or 12" if you observe
asked by Scott on July 18, 2007 
Calculus need help badllyyy!
Use the expressions for left and right sums and the table below. righthand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t lefthand sum = summation (n above
asked by Zoe on March 13, 2012 
English.
I have an English project on Julius Caesar. I'm a sophomore in high school, by the way. I have to have a quote from act five of the play and connect it to something that happened in the last fifty years. I have absolutely no idea what to do and I have to
asked by Savannah on March 13, 2007 
Calculus  MathMate Please help
ok, i tried to do what you told me but i cant solve it for c because they cancel each others out! the integral for the first one i got is [sin(c)cos(x)cos(c)sin(x)+sin(x)+c] and the integral for the 2nd one i got is [sin(c)cos(x)+cos(c)sin(x)sin(x)+c] I
asked by K on November 29, 2010 
PROJECT please help
INTRODUCTION Imagine yourself seven years from now. You are approximately 22 years old, and are looking to start a career after you have taken the previous four years for postsecondary education, travel, and some work. You are moving out of your parents
asked by Anonymous on March 13, 2011 
physics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by pbhakta on March 7, 2011 
physics kinematics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by Diyan on March 7, 2011 
physics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by Diyan on March 7, 2011 
physics kinematics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by Diyan on March 7, 2011 
physics kinematics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by Diyan on March 7, 2011 
physics
Physics  Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.
asked by Diyan on March 7, 2011 
Physics
A block with a mass of 5.0 kg is held in equilibrium on an incline of an angle with a measure of 30.0 degrees by the horizontal force F. Find the magnitude of F. Find the normal force exerted by the inbline on the block. (disregard friction) Well, I don't
asked by Becca on November 14, 2006 
physics
Peggy drives from Cornwall to Atkins Glen in 37 min. Cornwall is 74.8 km from Illium in a direction 22¡Æ west of south. Atkins Glen is 24.6 km from Illium in a direction 18¡Æ south of west. Use Illium as your origin. Find the displacement during the
asked by Ji on September 14, 2010 
MATH
The length of Super Bowl commercials is said to be Normally distributed with a mean of 36 seconds and standard deviation of 8 seconds. a. Find the probability that a randomly selected Super Bowl commercial is shorter than 45 seconds? (2 points) b. Find the
asked by ASH on February 2, 2015 
Philosophy
Is a person more than a physical body? What is the mind? What is thought? I am having trouble finding information on pricipal issues,some philosophies related to the questions and some misconceptions about the questions. If anyone could help me. I really
asked by Marie on May 31, 2007 
Math
The greater of two consecutive even integers is six less than twice the smaller. Find the integers. The greater of two consecutive even integers is six less than twice the smaller. Find the integers How about x + 2 = 2x  6 almost .. it's x + (x+2)=2x2
asked by Jaime on June 3, 2007 
Calculus
Find the inner product of vectors a and b if a = (3, 0, –1) and b = (4, –2, 5,) and state whether the vectors are perpendicular. Find the inner product of vectors a and b if a=(4,2,2) and b= (7,2,4) , and state whether the vectors are
asked by horre on September 10, 2012 
Translation
Translate the point (5, 5) to the new origin given (h, k). Given center (h, k) = ( 3,  3), find point (x', y'). Translate the point ( 8,  8) to the new origin given (h,k). Given center (h,k) = ( 3,  3), find point ( x', y').
asked by Sebastian on March 23, 2012 
Precal
Describe the distance of point P from the far left or right of the center of the wheel as a function of the angle of the rotation. Assume that the wheel is rotating counterclockwise and the angle of rotation,theta, is the angle between the horizontal ray
asked by Anonymous on February 10, 2016 
calc
The demand curve for the comics is given by the following equation, where q is the number of copies the publisher can sell per week if it sets the price at $p. q=(388p)**2/50 text( ) \(0
asked by lc on November 2, 2011 
study island
Part of the pride of being an American comes from the fact that most people that want jobs have jobs. However, this is not always the case. Sometimes, as happened in 2008, the economy slows down, and jobs become harder to find or keep. Businesses make less
asked by yeehaw on February 13, 2019 
school
1) A great way to teach math is through children's everyday experiences. Answer:True 2) Children can use words they have never had experience with or heard before. Answer:False 3) Children with limited experiences have limited language ability with regard
asked by Anonymous on August 6, 2017 
Algebra
1) A corner lot that originally was square lost 185m^2 of area when one of the adjacent streets was widened by 3 m and the other was widened by 5 m. Find the new dimensions of the lot. (Hint: Let x = the lenght of a side of the original square lot. ) 2) A
asked by Remmy on November 28, 2012 
Algebra 2
Hey guys i have a little assignment for you guys to do. My students have had a tough time doing this and i wanted to see if any of you can get this right.The first person to get this correct i will help them with any math related problems for a week. Good
asked by Mrs.Clinton on October 23, 2013 
Texas Government English
A look back on the terms of recent governors shows just how tricky it can be to get this mixture of political support, skill, personality, and luck right. Bill Clements (19791983, 19871991) played an historic role as the first Republican elected governor
asked by HM on November 12, 2011 
Calculus
Find the range of y = (3x1)/(2x^2 + x  6) I was going to take the derivative of the numerator and denomenator and then use the quotent rule to find the derivative of the function and find the critical values but I ran into the imaginary number during the
asked by Kate on July 25, 2010 
Math
PLEASE DON'T JUST SHOW ANSWER PLEASE SHOW HOW TO DO IT PLEASE Mrs. Walters drove 360 miles on 25 gallons of gas. Mr. Walters drove 480 miles on 32 gallons of gas. a.Find the mileage per gallon for Mrs. Walters car. b.Find the mileage per gallon for Mr.
asked by Iris on November 9, 2018 
Math: determinants
If det(A)=7 A=  a b c   d e f   g h i  Find det(2A^1), det((2A)^1). Find  a g d   b h e   c i f 
asked by Amelie on December 2, 2007 
! P H Y S I C S !
A 5 kg mass is thrown down with a velocity of 10 m/s from a height of 20 m onto an upright spring with a relaxed length of 10 m, and a constant of 50 N/m. What will the maximum compression of the spring be? What will the speed of the object be when the
asked by Physics Guy on November 2, 2008 
algebra
15. To travel a fixed distance, the number of gallons needed is inversely proportional to the miles per gallon rating P of the car that gets 42 miles per gallon (mpg) needs 33 gallons to travel the distance. a. Find an equation of variation N= b. A car
asked by Help Please on September 27, 2013 
Chemistry(Please check, thank you!)
I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE table. The equation that were are using is Fe^3+(aq) + SCN^(aq) > Fe(SCN)^2+(aq) I have to create 5 ICE tables because we used 5
asked by Hannah on March 4, 2012 
Chemistry(Urgent, please check)
I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE table. The equation that were are using is Fe^3+(aq) + SCN^(aq) > Fe(SCN)^2+(aq) I have to create 5 ICE tables because we used 5
asked by Hannah on March 4, 2012 
English
i need help with poem and need to identify each province by giving a line frm poem. ontario and quebec be bunk house & brawnymen, prince edward island be little girl, great fisherman be nova scotia and new brunswick, BC be hunchback. Alberta, saskatchewan
asked by Mohammad on May 21, 2012 
business
1. A vertical division of labor is based on A. the establishment of lines of authority. B. the specialization of work. C. the rotation of tasks. D. improved efficiency through repetitive simple tasks. 2. Above all, an appropriate organizational structure
asked by MikeP on October 7, 2014 
college english
Please help revise !! thank u sooo much!! Direct military action against Iran would only agitate the Middle East particularly Islamic governed countries. Disturbing this region would damage America’s interest towards the fight against terrorism.
asked by christy on February 18, 2010 
Health (Ms. Sue)
1. Describe the dangers of binge drinking. A: There are many dangers of binge drinking. For example, binge drinking causes the area of the brain that control breathing and heart rate to become dangerously depressed. The brain and the heart may even stop
asked by Anonymous on November 8, 2013 
Biology  biotechnology Help please
Several thousand fish species are to be "bar coded" ( I presume they mean markers), it's part of a research campaign. A specific region of mitochondrial dna is being used by the research group which will not show much variation within species but between
asked by dna complexed on October 30, 2006 
calculus
I've done the first question but I cannot get any farther. I'm so stuck. Please explain or just help me to figure out the next steps. A printed poster is to have a total area of 837 square inches with top and bottom margins of 7 inches and side margins of
asked by casidhe on April 20, 2012 
Algebra
Hi. 1. I have a right triangle here. I know that I am to use the Pythagorean Theorem: a^2 + b^2 = c^2. In this case, side a is (x + 4) and b is x. The hypotenuse is 4 + (x + 4) So here we have the equation: (x + 4)^2 + x^2 = 4 + (x + 4)^2. I need to find
asked by Student on March 11, 2014 
MATH HELP?!?!?!
1. Maria has the following scores in her mathematics class: 86 75 97 58 94 and 58 a: Find the mean median and mode b: Should Maria's Mathematics class teacher use mean median or mode of the exam to convince Maria that she needs to study more regularly? 2.
asked by Rebekah on May 8, 2013 
Language Arts
Can these be checked? • What differences became matters of life and death during the Holocaust? • Do differences between people necessarily lead to conflict? • How can the Holocaust help us find similarities that go beyond race, culture, nationality,
asked by EmberShy on February 27, 2017 
algebra 2
I have a question about two problems that I am trying to solve for my h.s. trig. class. The first one I believe is correct. the other i am lost. D(p)= 200060p S(p)=460+94p p is the price in dollars a) find those values of p for which demand exceeds supply
asked by Monica on February 22, 2011 
Art
What is media and why do artist use certain types of media over others? The word "media" is simply the plural form of "medium." A medium is simply the particular form or material that an artist chooses to use. For example, oil is one medium for painting;
asked by Angelia Garner on September 4, 2005 
math (statistics)
The following table shows the percentage of individuals in each age group who use an online tax program to prepare their federal income tax return. AGE ONLINE TAX PROGRAM (%) 1834 16 3544 12 4554 10 5564 8 65+ 2 Suppose a followup study consisting of
asked by sarah on February 9, 2015 
Statistics
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100, with a sample size of (i) 400, (ii) 1600. What is the effect of the sample size? (b) Find the margin of error for
asked by Courtney R on April 4, 2015 
aed
Provide examples of effective classroommanagement strategies for each category. The categories are Classroom Expectations and Procedures for Two Different Age Groups, TimeManagement Strategies for Continuity and Strategies for Dealing With Disruptive and
asked by scooby on February 10, 2010 
Language Arts
Rewrite each sentence below correcting the double negative. 1. He can't talk nicely to nobody. 2.The lady won't never find her lost cat. Answer: The lady won't ever find her lost cat. 3. There aren't no pictures in that book. Answer: There are no pictures
asked by Patrick on March 3, 2016 
variation
Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. I
asked by Soly on October 9, 2007 
VariationCheck Problems
Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. I
asked by Soly on October 8, 2007 
Check my answers. Algebra
Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. I
asked by Soly on October 10, 2007 
variation
Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. I
asked by Soly on October 9, 2007 
8th Grade Algebra Answer Check
Josh and Racquel sold corn dogs and burritos at the math club fundraiser. The corn dogs(c) cost $.35, and the burritos(b) cost $.75. They sold a total of 600 items, and raised $360. a)Write an equation for the total # of items sold. b)Write and equation
asked by <3Medic+Droid<3 on January 25, 2009 
MathArea
Find the area of each regular polygon to the nearest tenth. Octagon with side length of 10 kilometers. Heres what I tried; but I don't know if im on the right track. Area=1/2 * Perimeter* Apothem Perimeter=base of octagon* number of sides Perimeter=10*8=80
asked by natalie on April 4, 2007 
algebra, math133
Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that
asked by michelle on May 22, 2010 
English
Literature during this period (18401860 "The American Renaissance) is permeated by the doctrine of individualism. Explore the expression of individualism in the work of one of these figures: Ralph Waldo Emerson, Henry David Thoreau, or Emily Dickinson. is
asked by Missa on January 30, 2007 
MATH FOR LIBERAL ARTS
Maria just inherited $10,000. Her bank has a savings account that pays 4.2% interest per year. Some of her friends recommended a new mutual fund, which has been in business for three years. During its first year, the fund went up in value by 12%; during
asked by CARMEN on June 21, 2010 
algebra
the profit made fram the sale of a dvd players from a company is found by subtracting the costs from the revenue. p=r+c. Suppose that the companys revenue can be expressed with the function R(x)=x^2+59x and that the total costs for the company can be
asked by melissa on November 9, 2009 
chemistry
If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is  544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is 192 kJ/mol. and heat of formation of water is 286, what is heat of CaO? i found that the formation of CaO is 638. However,
asked by nicholas on February 11, 2007 
Physics
Draw the figure. You have the following equations that you can write: a) Sum Vertical Forces=0 b) Sum horizontal forces=0. Remember that at the upper part of the ladder, there is a horizontal force (only). c) Sum of moments about any point, I suggest the
asked by bobpursley on May 31, 2007
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