
Algebra
Why can a subtraction problem be rewritten as an additional problem without changing the outcome? Give a realworld scenario where this might be modeled.
asked by Rima on August 25, 2015 
reading
what is the central problem the main character has? What is one event that leads to the problem? Island of the blue dolphins by scott o'dell novel
asked by nashali rivera on August 5, 2009 
Math
I checked the problem but I didn't understand the answer how could you do?, because what happened with the fractions? Estimate the result of the following problem as a whole number: 4 1/43+2 15/16 1 24/26+ 5 11/12 3 3/61 Can you explain me, please....?
asked by Sha on January 20, 2010 
Math
A Marathon runner runs 10 1/2 miles in 2 hrs. What is her rate? Write an expression to represent the problem. Solve the problem.
asked by Amy on January 11, 2017 
education
How does this problem create a barrier for creating strong and healthy children in this country? problemtransportation need someone to explain and examples please.
asked by nina on May 11, 2016 
Math
No, I'm sure the problem is written like this: [(3a^327a)/(2a^2+13a7)]/[9a^2/4a^21)] And to divide you multiply by the reciprocal. So i still don't get the problem I also know to factor, but I'm stil confused.
asked by David on August 7, 2008 
Math 3
graphing log functions for y=log12^x I don't have a calculator for this and I would like to know how to work this problem on paper so I can graph it to my chart. Can someone please help me with this problem?
asked by Brandon on October 20, 2010 
accounting
Write a word problem involving a discounted price. Describe the situation and pose the question, but DO NOT SOLVE the problem.
asked by catrina on January 29, 2011 
math,algebra
Can someone help me with this problem I don't understand what to really do or even how to graph them I show what i have so far. Directions: Solve each of the following systems of linear inequalities graphically. Problem:
asked by jasmine20 on January 2, 2007 
English
A: Can you wrap it, please? It's a gift for my son. B: No problem. In this short dialogues, what other expressions can we use instead of 'No problem'? Of coures. Sure. Can we use 'Sure thing.'? And some other exxpressions would be _______.
asked by John on October 1, 2008 
Physics
Which of the following statements for magnetism are true? (Give ALL correct answers) A) B does work on a charge only when the charge has a velocity component perpendicular to B. B) B acts only on charges at rest. C) B does work on a charge only when the
asked by Richie on October 6, 2007 
math
Find the cost of buying 4 dozen of exercise books at sh 6000 per dozen,a half dozen of pencil at sh 2050 per dozen,5 dozen rulers at sh 3600 per dozen #i need anyone to help me please# and in case someone has such type of questions,i am kindly need for
asked by kelvin on February 23, 2017 
Math
A farmer was taking her eggs but they all fell on the floor. She didn't know how many eggs she had. But then she remembers when she put them in groups of two, there was one egg left over. When she put them in groups of three, there was also one egg left
asked by Sam on September 16, 2006 
math
If A, then B is equivalent to If not B, then not A Not (A and B) is equivalent to not A OR not B Not (A or B) is equivalent to not A AND not B Can you give an equivalent statement to 1. If an Iowa farmer does not grow corn or beans, then he grows alfalfa.
asked by Pat on September 9, 2012 
Physics C
A rifle is aimed horizontally at a target 100 ft away. The bullet hits the target .78in below the aiming point. a) What is the bullet's time of flight? b)What is its muzzle velocity? The answers should be a) 63 m/s b) 1.6 X 10 exponent 3 ft/s I don't know
asked by Layla on November 18, 2014 
science
At a construction site a pipe wrench struck the ground wiht a speed of 24 m/s. a) From what height was it inadvertently fropped? b) How long was it falling? for a) the book said it was 29.4m and for b) it was 2.4s but I keep on getting the wrong answers.
asked by ben on September 11, 2006 
Math
a deck of cards haa 52 cards. in it has 4 of {aces,2,4,3,4,5,6,7,8,9,10,queens,kings,and jacks well you know} what is the probability of getting 4 aces at a time? express your answers as a common fraction. ps. the answers 4/52 or simplfied is not the
asked by Cindy on November 15, 2010 
business math73
Use the Present Value Table on page 358 of your text to compute the present value (principal) for an investment with a compound amount of $20,000, a 30month term of investment, and a 14% nominal interest rate compounded semiannually. (Points : 2.5)
asked by Minnie on October 5, 2013 
cjs/210
Can someone help me find a website to find the answers to the following questions? Examples of technology used in policing and how technology enhances or detracts from police organizations’ ability to function Examples of lessthanlethal weapons and how
asked by Meka S on July 17, 2012 
Shakespeare
I am trying to find an example of a paraphrase in Romeo and Juliet. I know that it is a restatement by another character but can not find where this occurs. Would someone please help me? Thank YOu.
asked by Ian on July 22, 2010 
Economics
What type of labor occurs in Kenya? What percentage of it is physical labor, mental, other? Thanks
asked by Anonymous on November 12, 2012 
Chemistry Acidbase titration
The indicated endpoint of an acidbase titration seldom occurs at a ph of 7. what determines the ph of the endpoint??
asked by David on April 24, 2013 
Osmosis
What is concave plasmolysis and what is convex plasmolysis. Please don't just tell me that one is irreversable and the other is usually reversable. I'd like to know what actually occurs.
asked by Anonymous on February 5, 2011 
MATH
How do i solve the pair of simultaneous equations y=42x y=2x^23x+1 ?? how do i find minimum value of 2x^23x+1 and the value of x for which the minimum occurs???
asked by Aaliyah on June 17, 2009 
Probability
The probability that an event A occurs is P(A) = 0.3 . The event B is independent of A and P(B) = 0.4 . a) Calculate P(A or B or both occur) . Thanks in advance for the help!
asked by Autumn on November 6, 2018 
Chemistry
What chemical occurs to the red cabbage red for acids and blue for bases.
asked by jason on March 9, 2016 
math
After years of teaching, I can say (with 100% made up certainty) that the average number of questions the typical student can complete per minute is 5.Â If I choose any student at random (I'm looking at you), what is the probability that yo...er that
asked by josh on October 12, 2017 
Math
What is the difference between "Give your answer correct to two decimal places." and "Round your answers to two decimal places." ?? Are they the same thing or do the answers differ?
asked by George on September 12, 2016 
Social studies?
Please ignore my previous post. I prematurely hit the enter key. I've been watching this board all day, waiting for someone to answer my physics question (no one has yet. sigh.) I just have to say Ms. Sue is my hero. She consistently answers almost every
asked by Anastasia Beaverhausen on August 15, 2007 
drbob222 math,correction
i made some corrections for the previous postage can you check those when you get a chance please. Also for this one: my options of answers are: A)2y + 6/3 B)3x 6 /2 C)2 + 2y D)2/3y + 6 Directions: Solve for x: 3x  2y =6 3x  2y = 6 +2y +2y 3x = 6 +2y 
asked by jasmine20 on January 11, 2007 
Business Math
Find the amount of the principal on a loan at 6% interest for 274 days if the interest was $68.50, using the ordinary interest method. (Round to the nearest whole dollar amount)
asked by JJ on November 3, 2013 
math
Abbi invested $1,000 in a certificate of deposit with a simple interest rate of 4%. Find the interest earned in 8 years. Then find the total of principal plus interest.
asked by new on February 12, 2018 
algebra
Abbi invested $1,200 in a certificate of deposit with a simple interest rate of 2%. Find the interest earned in 9 years. Then find the total of principal plus interest.
asked by breanna on May 27, 2011 
Algebra
Abbi invested $1,500 in a certificate of deposit with a simple interest rate of 4%. Find the interest earned in 6 years. Then find the total of principal plus interest.
asked by Yaz on March 2, 2015 
Math
you have a loan for $150,000 @ 5% on a 30 yr mortgage. You plan to pay off your loan in 10 yrs, Do you want your loan to be figured using the "Rule of 78" or the "Unpaid Principal Balance Rule" please help if possible Thanks in advanced
asked by lost!!!! any other answer on May 27, 2012 
math
Abbi invested $1,000 in a certificate of deposit with a simple interest rate of 3%. Find the interest earned in 6 years. Then find the total of principal plus interest.
asked by urgent on March 11, 2018 
Math
Amy's school is made up of 524 students. The principal gave each student 3 pencils. Amy says 1,048 pencils were handed out. Is Amy's answer reasonable? Why or why not?
asked by Cons on June 25, 2017 
business
In calculating the bank discount when discounting an interestbearing note, which one of the following is not used in the calculation? A. Discount period B. Bank discount rate C. Principal proceeds B is my answer
asked by debbie on February 21, 2016 
English
1. Can people send letters to the people on Dongdo? Yes, they do. There is a postbox on Dongdo. 2. When was Dokdo first recorded as part of Korea? It was first recorded as part of Korea in the 500s. 3. What is the temperature on Dokdo? It is around 12 C.
asked by rfvv on November 9, 2016 
Calc
Why is it false that F'(x) = G'(x) on the interval [a,b], then F(b) f(a) = G(b) G(a)?
asked by ian on November 16, 2016 
fds
Which of the following selfconcepts do you think is false?
asked by rwt on April 11, 2016 
human reations
Another name for false productivity is
asked by correana on April 28, 2010 
math
if x=2 and y=2, which of the following is false: (a) (x) is greater than 1 (y) (b) (x) = (y) (c) (y) is less than 1 (d) (x) = y
asked by Angel on March 5, 2015 
math2
Which statement is false? a ¡ô {a, b, c} ¨ª ¡ø {a, b, c} ¨ª ¡ö {a, b, c} ¨ª ¡ô {a, b, c}
asked by anonymous on June 19, 2011 
Chemistry
Consider the following thermochemical equation: CH4(g) + I2(g) > CH3I(g) + HI(g) DH = +23 kJ What energy change occurs when 1.6 mol of CH4 reacts?
asked by Nisah on September 17, 2012 
calculus
f(x) = ln(ln(lnx)) has the domain of (e, infinity). I am not sure how this occurs however. I know in the case of ln x, x must be greater than 0. However where does e come from. e is the base of log in the case of ln, but something is just not clicking for
asked by Joshua on October 16, 2013 
Int. science
The creation of graphs usually occurs during _____. data analysis data collection observation questioning I think it might be B
asked by Mclovin on October 2, 2014 
science
If you watch a movie scene in which a loud explosion occurs in the space. What do you conclude about the accuracy of the scene?
asked by raquel on May 14, 2012 
Physics
*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we
asked by Justin on October 8, 2006 
Environmental Conservation
What are the loopholes in blindly assuming that Traditional Ecological Knowledge (TEK) is the most complete knowledge for effective conservation? What are the possibilities of linking traditional knowledge with scientific methods to help in conservation
asked by Ana on August 18, 2015 
Rates
Guys, how much would you rate this website? From 110. Do you feel like others are helping you with your questions? Remember that we don't solve for you. We explain the situation you are in and then you solve it on your own. This website's caption is
asked by Light Bulb on January 21, 2017 
maximum and minimum problems when function unknown
Hi, can anyone please help me with this problem, i have no idea what to do! The question is: a window frame is in the shape of a semicircle joined to a rectangle. Find the macimum area of a window using 300 cm of framework. i can usually solve these sorts
asked by elle on May 21, 2007 
Calculus Help
The deal your assistant signs calls for the sale of a minimum of 260 chairs and up to 410 chairs. The price will be $88 per chair if only 260 chairs are bought, but will be discounted by $0.2 per chair (on the entire order) for every chair ordered in
asked by Anonymous on July 15, 2014 
Science 7R  Homework Check
1. List 4 reasons biologists use scientific names instead of common names in their communications. Answer 1. Scientific names help scientists aviod errors in communication. 2. Organisms with similar evolutionary histories are classified together, 3. The
asked by Laruen on January 26, 2012 
Quantitative methods
State Bank made a loan at 12% interest for 360 days. If the amount of interest was $934.20, use the ordinary interest method to find the amount of principal borrowed.
asked by Richard Zimmerman on June 15, 2017 
Math
Someone loaned me $20.00 in 1962 without quoting an interest rate. Using whatever the market interest rate was at that time, how much money would I owe in 2013 including principal and interest, straight and compounded.
asked by Bee on December 22, 2013 
Math  Pre Algebra
Simple and Compound Interest Find the simple interest. principal= $870 interest rate= 6% time= 9 months Please help me I need the answer for tommorow.
asked by Tanisha on April 13, 2009 
National Government
The principal powers of Congress include all except the power of the purse. the power to declare war. implied powers. x the power to hire generals.
asked by Shirley on January 17, 2015 
math
Using the formula, compute the true annual interest rate. Loan amount = $9,500 Monthly payments = $227.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth
asked by wilton on May 2, 2014 
science
I'm doing Science right now. I have the answers down for most of them but I'm not sure if I am right..... Can u pls help me and tell me if my answers r right? I suck at science :S 1.A 2.C 3.B 4.D 5.D 6.A 7.? 8.A 9.E 10.C 11.A 12.D 13.C 14.B 15.? 16.? 17.?
asked by barnyardgal on April 23, 2018 
Another Problem...PLz Help COunt Iblis
Statements Reasons 1. 3x  7 = 4 2. 3x  7 + 7 = 4 + 7 3. 3x + 0 = 4 + 7 4. 3x + 0 = 3 5. 3x = 3 6. (1/3) 3x = 3 (1/3) 7. (1/3) 3x = 1 8. 1x = 1 9. x = 1 Is this problem about explaining each step? yeah like you have to write the property of each Are
asked by Margie... on December 2, 2006 
math
Using the formula, compute the true annual interest rate. Loan amount = $9,500 Monthly payments = $227.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth) = _____.
asked by angel on May 16, 2016 
Science
The geologic time scale originally ordered Earth's rocks by: A. absolute age B. relative age*** C. composition D. decades and centuries Where did scientists originally get their information to develop the geologic time scale? A. They collected and studied
asked by Anonymous on November 12, 2015 
Multiplying Binomials
You are planning a rectangular garden. Its length is twice its width. You want a walkway 2 ft wide around the garden. a. Write an expression for the area of the garden and walk. b. Write an expression for the area of the walk only. c. You have enough
asked by Emily on January 14, 2007 
statistics
Can someone work this out for me, so I can use as an example to do the other ones. Does it pay to study for an exam? The number of hours studied, x, is compared to the exam grade received, y. x 4 4 6 1 1 y 75 90 95 60 80 (a) Find the equation for the line
asked by Sue on May 25, 2013 
English 10th grade
"Well that's sculpture, making a '74 Toyota look like a '63 Corvette, only I didn't think of it that way...I was doing good work, and I was making good money." What is the purpose of the ellipsis (...)? I have it down to two possible answers: A. to prepare
asked by Jim on December 3, 2014 
Economics
A neoclassical theorist would use the formula Y = (w r * L s) + (I r * K s) to explain why a given person, John, is poor. a) According to the Neoclassical Theory, how would John decide how many hours of labor to supply? Draw an appropriate diagram to
asked by Kim on October 19, 2006 
math
I have a couple of math questions that i cant seem to get to work out. can someone help me please.? 1.) (x/x+6)(6/x6)=(x^2+36)/(x^236) 2.) (r2)(2r)=0 3.) add (8/ty^2)+(9/t^2y) 4.)add (7/w)+(8/w^2) 5.)add ((r+10)/r)+(r/(r+10)) 6.) divide
asked by jen on March 10, 2010 
Statistics
According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women
asked by Michael on November 9, 2013 
Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a
asked by Lori on February 18, 2013 
Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a
asked by Lori on February 18, 2013 
Physics
a) Is it true or wrong to say that components in series must have the same potential difference across them? Either yes or no explain it. Marks = 5 b) Is it true or wrong to say that magnetic force vectors on charged particles point in the same direction
asked by Jiya on January 15, 2018 
Physics waves check answers please
I am not too sure if my answers are correct. Here are the questions: 1. A student standing near a brick wall claps her hands and hears the echo 0.250 s later. If the speed of sound was 340.0 m/s, how far from the wall was she? For this question I got 85 m.
asked by Liz on April 21, 2014 
Mathematics
1. 2/(2/3)+3/4/(4/5)= A. 1/5 B. 11/15 C. 47/60 D. 3 13/30 E. 12 2. If 2/5 of (2/3)/(5/6) is divided by 3/10, what is the resulting value? A. 1/15 B. 12/25 C. 8/15 D. 5/3 E. 125/27 3. Solve for x: 2x+3=5x8 Are there two answers?
asked by Anonymous on August 7, 2013 
Statistics
The owner of the Finer Diner submitted a proposal to you in hopes of selling the business to you. His asking price is $250,000. Your financial institution advises that your monthly payment to finance that amount would be $1850.00. This is in addition to
asked by Yvette on September 8, 2013 
chemistry
Hey...how r u guys..thanks for helping me on my previous questions...can u help me solve two questions and check one? Thanks, all the questions are related to the info given: In some industrial processes, sodium chromate is added to water coolants. When
asked by David on June 18, 2006 
Physics
A bullet is dropped into a river from a very high bridge. At the same time, another bullet is fired from a gun straight down towards the water. If air resistance is negligible, the acceleration of the bullets just before they strike the water A. is greater
asked by JC on September 10, 2006 
Chemistry
A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as in "how many moles of Cu2O are
asked by Angeline on April 20, 2009 
statistics
When red blood cells are counted using a certain electronic counter, the standard deviation (SD) of repeated counts of the same blood specimen is about .8% of the true value, and the distribution of repeated counts is approximately normal. For example,
asked by Asmaa on December 12, 2009 
11th grade math
A box without a lid is constructed from a 38 inch by 38 inch piece of cardboard by cutting in. squares from each corner and folding up the sides. a) Determine the volume of the box as a function of the variable . b) Use a graphing calculator to approximate
asked by Channing on January 21, 2010 
Health
Vivian has been having abdominal pains for the past week. Now that she has started her new job and received her new health insurance, she is finally able to schedule an appointment with a doctor. As Vivian arrives in the waiting area of the new doctor’s
asked by Brenda on September 7, 2008 
GOVERNMENT
TWO QUESTIONS 1. Discuss 2 limitations the supreme court has imposed on the exercise of 1st Amendment rights to free speech? On what grounds have these limitations been justified? 2. What is due process of law? Describe 2 of the due process guarantees
asked by JAYLEE on January 15, 2007 
statistics
Your muffler factory claims to manufacture mufflers with a lifespan of more than 10000 miles of usage. A consumer group tests this claim at the 95 percent significance level, and finds that a sample of 64 mufflers have a mean lifespan of 10002 miles, with
asked by lulu on August 23, 2014 
Math
There is a football field and the length shows 120 yd and the width is 53 1/3 yd a. What are the dimensions of a football field in feet? b. A chalk line is placed around the perimeter of the football field. What is the length of this line in feet? c. About
asked by Erik on October 18, 2016 
Calculus
If an arrow is shot straight up from the surface of the moon with an initial velocity of 100 ft/s, its height in feet after t second is given by s(t)=(100t)−(83/100)(t^2). Use the limit definition of the derivative to find the answers to the following
asked by Linda on June 8, 2013 
math
PLEASE HELP I WOULD REALLY APPRECIATE IT! 1. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38 ANSWERS: A) n+7;707 B) 7n:700 C) 7n4;696 ** D) 6n4;596 2. Write a rule for the function
asked by anonymous on May 14, 2015 
Writeacher
To earn the appreciation of honest critics and endure the betrayal of false friends; To follow the way your honest critics want you to trail and change their outlook about you. To suffer the pain your false friends give you from within, but don’t let it
asked by Angelina on November 8, 2010 
math
abbi invested 1,500 dollars in a certificate of deposit with a simple interest rate of 4 percent. find the interest earned in 6 years. then find the total of principal plus interest
asked by iconiac and a granderz fan on January 31, 2012 
chemistry
home / study / questions and answers / science / chemistry / a chemical engineer studying the properties of ... Question A chemical engineer studying the properties of fuels placed 1.760 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2
asked by patrick on October 23, 2015 
chemistry
Calculate the standard cell potential for the glavanic cell in which the follwoing reactino occurs: 2I^(aq) + Br2(l) > I2(s) + 2Br^(aq)
asked by Priya on April 22, 2008 
Physics
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?
asked by Pardis on March 18, 2011 
physics
A car is speeding up and has an instantaneous speed of 14.0 m/s when a stopwatch reads 9.0 s. It has a constant acceleration of 2.3 m/s2. (a) What change in speed occurs between t = 9.0 s and t = 12.2 s?
asked by abbie on September 6, 2011 
chemistry
Calculate the standard cell potentiqal for the galvanic cell in which the following reaction occurs: 2Na(s) + 2H20(l) > H2(g) + 2NaOH(aq)
asked by Priya on April 22, 2008 
Physics
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?
asked by amy on March 18, 2011 
Physics
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?
asked by Abby on March 22, 2011 
Science
State four of the transformation of energy which occurs at a power station which uses coal as its fuel. Account for the energy losses.
asked by UEW on November 3, 2017 
Chemistry 1115
What is the chemical equation for the reaction that occurs when you add 0.1 M NaOH solution to the HC2H3O2NaC2H3O2 buffer solution?
asked by Marci on November 25, 2012 
chemistry
How many liters of HCl are produced by the reaction of 5.7 L of hydrogen with an equal amount of chlorine? The reaction occurs at STP.
asked by Alondra on December 6, 2011 
Science
Hi if you know about static electricity can you explain how lightning strikes form? Can you think about when lightning occurs to formulate your answer to my question please. Thank you so much!!!
asked by Rosey on January 14, 2016 
chemistry
A mixture containing 0.0392 M A(g) and 0.0452 M B9g) is allowed to come to equilibrium at 300K. The reaction: 3A(g)+ 2B(g)=> C(g)+ D(g) occurs. At equilibrium, [C]=0.00128 M What is the value of Kc?
asked by Jim on July 3, 2010