
Chemistry
The complex ions of Zn2+ are colorless. Why? Keith, Natali, Cindy, Joel, or whoever, Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a
asked by keith on April 27, 2007 
Physics
Can you please explain further because I don't understand? Posted by Mary on Wednesday, November 14, 2007 at 4:23pm. A wavelength of 625 nm is used in a Young's doubleslit experiment. The separation between the slits is d = 1.3 105 m. The total width of
asked by Mary on November 15, 2007 
Chemistry
Arrange each group of compounds/ions in order of increasing pH. 1. Li2CO3 , OH^ , NH4Br , NaCl 2. CH4 , HBr , H2O , F^ Lastly, I'd like to check if my answers for the following three questions were listed correctly in order of pH levels increasing. 3.
asked by TP on March 31, 2018 
Chemistry
home / study / science / chemistry / questions and answers / a subtilisin with an active site mutation of his ... Question: A subtilisin with an active site mutation of His t... EDIT QUESTION A subtilisin with an active site mutation of His to Ala had a
asked by Anonymous on September 11, 2016 
Management Accounting
well i try to solve this problem but it look so complicated I need to cash buget what's the problem? check the problem i don't get it check the problem i don't get it
asked by Erika Quezada on November 8, 2006 
Calculus
This is a large problem, sorry for the trouble. if f(x) = sqrt(x^3 + 5x + 121)(x^2 + x + 11) Find fprime/derivative of/at 0 I keep getting 16 which is not one of the multiple choice answers available. My last step is [sqrt(121)(1)] + [{5/sqrt(121)}(11)]
asked by Anonymous on October 29, 2008 
World History
Chinese characters originally were pictographs, but the language expanded into thousands of complex and stylized characters (1). One of the oldest Chinese books yet discovered is the I Ching, a fortunetelling guide that historians believe was written
asked by malia on September 29, 2017 
Math
My question says: Find the exact alue of x for which (4^x)*(5^[4x+3])=(10^[2x+3]) I can't seem to come to a solution. We're reviewing last year's lessons, so change of base and logarithmic expressions are what we're going over right now. Here's what I've
asked by Anonymous on September 21, 2010 
To Ms.Sue
Why did you create this website in the first place? And did you make this or did someone else make it? Do you just answer questions at your home? I know your a retired teacher but don't you still work? I have so many questions.
asked by GYMNAST on October 20, 2017 
English  ms. sue
thanks ms. sue for help with questions witht that story but i still need some help with few questions. it ask why the story be written in present tense? and is it good choice made by writer?
asked by Mohammad on December 5, 2012 
chemistry 1st year, for midterm help
Hi, Can any1 help with theses questions. I need to solve these because there will be similar questions on the midterm for me, coming week. Btw I have tried few. 1. How many milliliters of a 15.0%, by mass solution of KOH (Aq) ( d= 1.14g/mL ) are required
asked by ur class fella on February 12, 2009 
English
choose a word Indeed,police claim that it is probably young (d).......who are to blame for the recent spate of the burglaries in our town.Police are proposing special (e)........to combat the problem and are asking for the public aboutin this fight against
asked by Bayarbold on June 18, 2011 
math
Please help me with the following problem, I have veiwed the answers to the other problems like this one and were told they were incorrect: If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is
asked by IN NEED OF HELP on January 25, 2012 
Finance
The Carter Company's bond mature in 10 years have a par value of 1,000 and an annual coupon payment of $80. The market interest rate for the bond is 9%. What is the price of these bonds The coupon rate on the bond, (interest/principal at maturity) = 8%
asked by Dee on February 15, 2007 
biology help?
Please tell me which one is TRUE or FALSE for the statements below: 1. During the cardiac cycle the pressure in the left ventricle and right ventricle are approximately equal. 2. During isovolumetric contraction the left ventricular pressure continues to
asked by sam on October 10, 2013 
English
First you should have your decayed molar pulled out at the dentist's. We have to spend a lot of money if you have a false molar implanted at the moment. So, wait. By saving money, later you can have a false molar implanted. Today I will go to the citizen
asked by rfvv on June 22, 2011 
Spanish
Is it True That There are two versions of why the "casa de azulejos" ended up being completely tiled on the outside. Is It Tlso True That In our own national capitol, many homes now are owned by foreign governments for their ambassadors homes and offices.
asked by Needs Help on January 22, 2011 
Trigonometry law of cosine
A plane is flying with an airspeed of 200 miles per hour and heading 150°. The wind currents are running at 30 miles per hour at 175° clockwise from due north. Use vectors to find the true course and ground speed of the plane. (Round your answers to the
asked by NEED HELP ASAP on April 7, 2014 
MATH
Can anyone help me with this question.? What term is being described? Choose from these answers: (A)Central Limit Theorem (B)Normal distribution (C)Standard Error (D)Zscore (E)Transformation rules 1 If you keep taking more and more samples, the average of
asked by Anonymous on April 24, 2015 
Math
Can anyone help me with this question.? What term is being described? Choose from these answers: (A)Central Limit Theorem (B)Normal distribution (C)Standard Error (D)Zscore (E)Transformation rules 1 If you keep taking more and more samples, the average of
asked by Anonymous on April 24, 2015 
precalculus
hi! The question is: a.)identify any horizontal and vertical asymptote and (b) identidify any holes in the graph. Verify your answers numerically by creating a table of values. 14.) f(x)= 3/(x2)^3 16.) f(x)= x^2+2x+1)/2x^2x3 18.) 314x5x^2)/3+7x+2x^2
asked by Kelsi on December 13, 2014 
Algebra
equations and inequalities unit test for questions 15, solve the equation 4. 3(42x)=2x (1 point) a. 1*** b. 1 c. 2 d. 3 5. 5.4+0.2x=1.4x+8.6 a. 2 b. 2 c. .2*** d. 20 For questions 67, simplify the expression 6. 4  5(x+8) a.5x  44 b.5x + 36***
asked by conchobar (connor) on February 1, 2016 
math
Please i need a help also to this question Mwajuma needs 70% to receive a grade C in a certain subject.If the exam has 120 questions and each question carry one mark(1%), how many questions should she answer correctly?
asked by kelvin on May 21, 2018 
MATH
A pollster wants to minimize the effect the order of the questions has on a person's response to a survey. How many different surveys are required to cover all possible arrangements if there are 5 questions on the survey?
asked by MARIE on November 1, 2009 
Algebra
Pulling my hair, need help! For the systems of linear equations in questions the following questions: Determine how many solutions exist Use either elimination or substitution to find the solutions (if any) 4x = 8 and 5y = 15 0.2x + 0.4y = 1.7 and 8.3x 
asked by Vilma on June 10, 2012 
Math
Mia took a test with 60 multiplechoice questions. Her teacher told her she got 88% correct. A.Write and solve a proportion to figure out how many questions she got correct.
asked by Francis on April 17, 2015 
L.A.
the sandlot moive questions 1. what are one of the characters physically and psychologically 2. what dies this film say about the importance if of friendship. p.s. i got #2 questions but i just need help with more of #2 3.what does this film say about the
asked by yuku on January 10, 2011 
Math
1) Prove that for every x>=0 and 0
asked by david on January 7, 2015 
Home Economics
How come yall never answer my questions? I'm sorry, but I don't see any other home economics questions posted by Mirayah. Please repost your question and I'm sure someone will answer it.
asked by Mirayah on March 4, 2007 
Civics to Ms.Sue
Ms.Sue can you check my questions below I like when you check them and suggest what's best. I just need to finish this study guide so I can start studying on the right questions and not on the wrong ones.
asked by Sarah on April 3, 2015 
@ Pepsi
I deleted your Spanish post since several of the questions ask about the sound of a word. We do not have your source. Pleas repost only those questions that do not require sound.
asked by Ms. Sue on November 6, 2017 
math gr.6
Does anyone has questions (page 22) from pearson math makes sense grade 6 book? Please, help. I forgot my book at school and I only need questions? Thank, you.
asked by Anonymous on November 2, 2010 
english
Which of the following illustrates the key difference between subjective and nonsubjective issues? A) A nonsubjective issue has generally accepted criteria that can be used to judge it while a subjective issue does not. B) A nonsubjective issue is true
asked by jen on May 17, 2008 
Open Invitation
Please post some questions on foreign language/ESL as that area is my speciality. It's discouraging for me to see so few questions for my area! I would especially love to see questions re: Spanish, French, Japanese and literature. I am in French two. I am
asked by SraJMcGin on September 16, 2006 
Economics/Math
In a perfectly competitive industry, the market price is $25. A firm is currently producing 10,000 units of output, its average total cost is $28, its marginal cost is $20, and its average variable cost is $20. Given these facts, explain whether the
asked by cb on November 4, 2009 
English
Could you check this? Complete the questions. I wrote my answers with capital 1. Researchers are SUPPOSED TO BE VERY careful when working in the lab. 2. They ARE SUPPOSED TO CHECK and recheck dangerous experiments. 3. They are SUPPOSED TO THINK before
asked by Eliz on September 4, 2017 
Chemistry
Which of the following is NOT true about the thermodynamic standard state? A. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm. B. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C . C. A
asked by Jared on May 7, 2007 
English
Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. Are you finished? Then, I'll check the answers. Look at the answers on the blackboard. Check your answers. How many students
asked by rfvv on May 28, 2012 
Algebra
We're doing multistep equations, and I need help on how to check my answers? I knew how to do it on twostep equations, but now it's kind of confusing? for example, there's a problem, 6a1 over 7 = 1 My answer was 4/3. We're supposed to insert our answer
asked by Lea on October 1, 2010 
English
1. Which club do you go to? I go to a quilt club. 2. Which club do you belong to? I belong to a broadcasting club. 3. Which club are you in? I am in an RCY club. (Are the answers and questions the same?)
asked by rfvv on April 1, 2010 
English
1. What is bibimbap? It is a popular Korean dish. 2. What do we have today? We have a special dessert today. 3. What is today's special dessert? It's chocolate ice cream. 4. Who are they? They are student reporters. 5. What is the opening hours of the
asked by rfvv on April 1, 2013 
Science
How Is a compound different from a mixture? it is made of one substance It cannot be made of organic materials It cannot be broken down It cannot be separated by a physical change I don't know This formula shows the chemical reaction that occurs when the
asked by Anonymous on April 12, 2018 
math,help
can someone help me with this i am lost now i've been doing math for the past 8 hrs. Problem # 1 solve: 4(x10)3x=x40 Problem # 2 solve for t: a = p + prt Problem#3 translate to an algebraic equation 7 less than the quotient of a number and 3 is twice
asked by jasort20 on March 18, 2007 
Statistics
There's 5 multiple choice questions on a quiz. Four choices to each question. Find the probability that the student gets 3 or more questions right. p(x=3) (.25)^3= 0.015 p(x=4) (.25)^4=3.906 p(x=5) (.25)^5=9.765 Do you add them all together to get the
asked by Chris on March 27, 2016 
English
Can you please check these questions, too? Thank you. 1) Answer four of the following six questions. For each question write ten lines only. 2)Do not exceed the space provided. One of your four answer will be evaluated as an oral test.
asked by Franco on December 19, 2010 
general
I really don't like the fact that you guys are skipping so many questions we need help here and were not getting it. i understand that no one knows everything but, please don't skip the questions its really hard when i need help and no one is helping me.
asked by Anonymous on March 29, 2012 
Math troubles
There's 5 multiple choice questions on a quiz. Four choices to each question. Find the probability that the student gets 3 or more questions right. p(x=3) (.25)^3= 0.015 p(x=4) (.25)^4=3.906 p(x=5) (.25)^5=9.765 Do you add them all together to get the
asked by Chris on March 27, 2016 
Algebra,Math, graphs help
This is what the directions state to do: (A) Complete the table,(B)describe the resulting graphs by identifying the vertex point, (c) the graph’s direction, (d) and any axis intercepts gleaned from the table or graph. Problem #1 Equation is : y = x + 1
asked by jasort20 on April 11, 2007 
Please Help Very Urgent
Hello, I am new to this website. I visited this website few times.I have some HEALTH questions.I am sick since 5 days.This is about my HEALTH.Please answer my questions if you know the answer to it! My problem is: I was chewing the BIG RED CINAMMON FLAVOR
asked by Kaveri on January 14, 2007 
English
Can I have some more Ideas? Persuasive Writing Assignment: Imagine that you are an agent who is interested in publishing new authors. Choose any book you like and present the book to a publisher in New York. You want to be the person responsible for
asked by Victoria on December 18, 2012 
Math
A retired couple needs $12,000 per year in income to supplement their Social Security. They have $150,000 to invest to obtain this income. They have decided on two investment options: AA bonds yielding 10% per annum and a bank CD yielding 5%. (a) How much
asked by Angel on July 7, 2005 
consumer math
Jim opened an account with $400. The account pays three percent quarterly. How much is in the account at the end of two years? Round to the nearest dollar. (Points : 1) 5. Use this table to answer questions 5 through 8. Principal Rate Compounded Time Final
asked by tina on February 12, 2012 
Math
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 87 degrees and the low temperature of 63 degrees occurs at 5 AM. Assuming t is the number of hours since midnight, find an
asked by Holly on September 2, 2014 
math  integers
5. Robert, a real estate agent, drove 170 kms north from his home. The following day, he drove 54 kilometers south. How far and in what direction did he have to drive to get back home?
asked by Randy on February 7, 2012 
Solid machanics
At a point in a strained material the principal stresses are 60MPa and 40MPa. Find the position of the plane across which the resultant stress is most inclined to the normal and determine the value
asked by Ashok on December 10, 2015 
Mat
The graph and table below give the monthly principal and interest payments for a mortgage from 1999 to 2004. Use this information to predict the payment for 2005. Year
asked by Jodi on May 27, 2007 
Project Management
You’ve now assembled a small group of likely candidates for the dam PM job. What are the first five interview questions you will ask her/him? What would you like to find out about the candidate with each of these questions? If you ever expect to be a
asked by Christian on March 11, 2007 
Social Studies 6th
I have 2 questions that I have no idea what it is, they are What are the important geographic features of the Indian subcontinent? What is the climate like? and How did Emperor Asoka's achievements reflect the ideals of Buddhism? They are typing questions
asked by Kate H on September 26, 2018 
genetics
Can anyone help me with Genetics? I have some problems and answers and need them explained to me. Here are some of the questions and answers: 1. Assume that a dihybrid cross is made in which the genes' loci are autosomal, independantly assorting, and
asked by frank on September 8, 2007 
Cultural Diversity
Which of these statements is Not true? 1. Eye contact with the listener signals approval and consent in most NonAnglo cultural groups. 2. AfricanAmerican children are taught to look away from a peer while listening. 3. Eye contact in AsianAmerican
asked by Rose on November 2, 2007 
Social Studies
2. How did the American Expeditionary Forces help Allies win the war? A. They convinced German troops to rebel against their leaders. B. They had secret talks with the German kaiser, which eventually led to an armistice C. They assisted the French and
asked by JamesSk8 on February 23, 2017 
Physics
I'm having a problem understanding a question. "If a man exerts a 200N force while pushing a crate 5.0 m across a floor against a frictional resistance of 40N, how much energy was expended by the person pushing?" I can figure out work done on the box and
asked by Brigid on April 8, 2009 
LanguageArts
Please help asap REPETITION occurs when a line or a sequence of lines appears more than once. ASSONANCEis the repetition of the same or similar vowel sounds in a series of words, usually words with different consonant sounds. Read the poem, then answer
asked by Sean on November 6, 2009 
college physics
If a girl drops a coin into a wishing well. After exactly 5 seconds she hears it splash into the water. How fast was the coin going after 1 second? After 2 seconds? How fast was the coin going when it hit the water? How far down is the water? Could you
asked by patti on March 18, 2013 
Physics _ College
A 50 cm long hollow glass cylinder is open at both ends and is suspended in air. A source of sounds that produces a pure frequency is placed close to one end of the tube. The frequency is placed close to one end of the tube. The frequency of the sound
asked by Sonya on August 10, 2011 
Math HELP!
I posted a few questions and then went back and posted how I thought they were supposed to be answered. Could someone please locate my earlier questions and tell me if I am on the right track?
asked by Sabrina on September 24, 2010 
Math
Find the number of ways in which a French test can be made. 20 questions from a test bank of 100 questions
asked by DeAnna on April 21, 2008 
Question (PLEASE READ!!!)
What website is when you can ask any questions and other people can answer it something besides YA like free lik jiskha but for people to ask random questions and them answering.
asked by Laruen on November 18, 2011 
Confidentiality in Allied Health
I have questions that I need to answer and submit as a research. It has been years since I have written a paper and would like to know if the questions, I am answering need to be included in the paper?
asked by Priss on January 31, 2011 
Math problems
On her math test, Terry got 52 questions correct out of 68. What percent of the test questions did Marie answer correctly?
asked by Mary on March 27, 2016 
English
1. When do I have to return it by? You have to return it by tomorrow/Monday. 2. When is the due date? The due date is March 3rd. 3. When is the deadline? The deadline is tomorrow evening. (Are the questions and answers correct?)
asked by rfvv on March 31, 2010 
Buddha
I want to learn about BUDDHA Go for it. The internet is a great source of information. You could also do it the oldfashioned way and get a few books on the topic. Here are several sites that will give you information on this topic.
asked by Tyler on April 25, 2007 
6th grd. MATH QUIZ HELP!!!!
Questions 1) Solve the equation 3x=3=18 a) x=7 b) x=5 c) x=3 d) x=5 THERE ARE MORE QUESTIONS!
asked by Ms. Walker on February 20, 2017 
5th grade Language
Please help him if you can. REPETITION occurs when a line or a sequence of lines appears more than once. ASSONANCEis the repetition of the same or similar vowel sounds in a series of words, usually words with different consonant sounds. Read the poem,
asked by Sean on November 6, 2009 
chemistry(please check)
Just made it a new post didn't what it to get overcrowning.I hope this will help us figure out now For questions #1 through #10, refer to the following equilibrium system, with a Kc of 1.23E03: C3H6O (aq) + 2C2H6O(aq)> C7H16O2 (aq) + 2H2O (l) 1. What
asked by cateye on April 23, 2012 
English
1. A rainbow is an arch of seven different colors, red, orange, yellow, green, blue, indigo and violet. (is this grammatically correct?) 2. What is the color of the tulip? 3. What's the tulip's color? 4. It's pink. 5. It's the color pink. 6. It's the pink
asked by rfvv on June 30, 2010 
genetics
you have performed a genetic cross, and in the final results, you get 3/4 dominant phenotype and 1/4 recessive phenotype. what other info would you need to know to determine if the characteristics is normal or sex influenced? in addition explain why you
asked by cookie on April 5, 2007 
Chem
Calculate the mass percent composition of C,H, O and in aspirin. Express your answers using two significant figures. Enter your answers numerically separated by commas.
asked by Mira on February 22, 2013 
Calculus
At what points does the helix r = sin(t), cos(t), t intersect the sphere x^2 + y^ 2 + z^2 = 26? (Round your answers to three decimal places. Enter your answers from smallest to largest zvalue.)
asked by abby on April 16, 2010 
calculus
At what points does the helix r = sin(t), cos(t), t intersect the sphere x 2 + y 2 + z 2 = 37? (Round your answers to three decimal places. Enter your answers from smallest to largest zvalue.)
asked by Anonymous on September 26, 2010 
precalc
Solve. Give the answers in degrees so that 0° ≤ θ < 360°. 1) (5 cos θ  1) / 2 = 1 answers: 53°, 127°, 233° 2) 3 cot (2θ) + 3 = 0 3) tan^2 θ + 2 sec^2 θ = 3 is my answer for #1 correct and i'm not sure how to do #2 and #3.
asked by owen on October 29, 2015 
Chem
Calculate the mass percent composition of C,H, O and in aspirin. Express your answers using two significant figures. Enter your answers numerically separated by commas.
asked by Mira on February 22, 2013 
Economics
no idea what to do guys, little help please 11. Answer the next three questions on the basis of the following production possibilities data for Francia and Galacia. All data are in tons. Francia production possibilities: A B C D E Soup 60 45 30 15 0 Nuts 0
asked by Kyle on May 4, 2010 
algebra
would you help me write a logic application for andy has the cards1,5,and 7 belle has the crds 5,4,and 7 carol has the cards 2,4 and 6 whats the salient facts of the problem? explain the strategy for solving the problem? present a step by step solution for
asked by deborah cobb on January 22, 2013 
Math subject Calculus
Hi there I am having some difficulties to solve this problem from my homework package and i don't understand how to approach this problem. Please help me by giving me advice on how to approach this problem. Let z = xsin(x/y), y does not equal zero. Show
asked by shylo on October 24, 2009 
PHYSICS
Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #1: A skier with a mass of 60.0 kg is standing at the top
asked by Anna on March 7, 2013 
Math, Psychology
Can anyone tell me what should be the answer to this question? What term is being described: Choose from these answers: (A)Central Limit Theorem (B)Normal distribution (C)Standard Error (D)Zscore (E)Transformation rules 1) If you keep taking more and more
asked by Anonymous on April 24, 2015 
Finance
"The value of outstanding bonds change whenever the going rate of interest changes. In general, shortterm interest rates are more volatile than longterm interest rates. Therefore, shortterm bond prices are more sensitive to interest rate changes than
asked by Marsha on November 12, 2006 
English 12 Literature
Critical Reading Identify the letter of the choice that best answers the question. According to Bede, what is true of Ireland? At the end of Morte d’Arthur, the narrator says he is not sure what happened to King Arthur. Some say he was buried by a hermit
asked by Daja on April 12, 2012 
Algorithm/Function
So I need a function (parameters: origin x, origin y, destination x, destination y, object x1, object y1, object x2, object y2). The object in this case would be a wall with two points (x1, y1, x2, y2). The function needs to return a true/false if the wall
asked by Ariel on November 10, 2007 
CHEM
A gaseous hydrocarbon (an organic compound consisting of C & H) weighing 0.232g occupies a volume of 102mL at 23 degrees Celcius and 749mmHg. Calculate the molar mass and identify the compound. The compound is: a)C2H4 b)C3H6 c)C4H8 d)C5H10 e)C6H12 How is
asked by K on December 13, 2006 
science
Choose ALL of the following correct statements. Waxing Moons appear to get smaller as the Moon revolves around Earth. A waxing Moon occurs after the Full Moon during the month. A waxing Moon occurs after the New Moon but before the Full Moon A waxing Moon
asked by kennedy on October 3, 2018 
biology help plz?????????????????
Please tell me which one is TRUE or FALSE for the statements below: 1. During the cardiac cycle the pressure in the left ventricle and right ventricle are approximately equal. 2. During isovolumetric contraction the left ventricular pressure continues to
asked by sam on October 10, 2013 
Confidetiality of Health information
please check my answer thanks :) True or Flase You are allowed give access to someone if they need a patients records for a research project. I said True I have seen in my local hospital nursing students taking a look at a pt chart for research
asked by Anonymous on June 7, 2008 
AP English Literature
This is for the story "The Awakening" Edna's father • was a Colonel in the army during the Civil War. • disapproves of Edna's marrying Leonce. • feels wives should be controlled by their husbands. • all of the above • none of the above I know the
asked by Brighton on April 4, 2017 
Geometry
Complete Problem #28 in Section 1.5 Exercises (Chapter 1) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary. Statements Reasons PQ=RS Given PS=PQ+RS Segment
asked by Angie on October 4, 2012 
chemistry
As AgNO3 dissolves, what change occurs in the temperature of the solution?
asked by Anonymous on February 14, 2011 
health
what should be taken into consideration when cultural bias occurs in age care
asked by sarah on February 17, 2012 
mathematics
In how many ways can the letters of MAHABHARAT be arranged so that i) B n T are never together ii) M,A,T n H occurs at first four places
asked by Anonymous on March 30, 2013 
Science
What Type of Simple Chemical Reaction Occurs in Fireworks?
asked by Brianna on September 18, 2014