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December 8, 2016

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Gen Chem II
You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for electroplating. You get ...
November 18, 2013 by kyle

algebra
andy has the cards 1,5,7, belle has the cards 5,4,7 carol has the cards 2,4,6, andy draws the question card. do you see 2 or more players who cards sum to the same value? he answered yes. next belle draws the question card. Of the five odd numbers how many odd numbers do you ...
January 22, 2013 by deborah cobb

Data Management
Two cards are drawn from a standard 52 card deck. a) what is the probability that both cards drawn are black? b) what is the probability that one card is red and the other is black? c) what is the probability that a two face cards are drawn? d)what is the probability that two ...
March 3, 2010 by Jud

Math
A survey was made of 200 students to study their use of the public library system. The findings were as follows: 60 used the Reader’s Guide. 28 used both the card catalog and the information booth. 68 used the information booth. 83 did not use the library. 43 used only the ...
June 6, 2010 by Abby

Chemistry
Have have 3 general question regrading Analysis of the hardness of water: 1. What is meant by non-zero blank correction in calculating EDTA?(Whats the effects?) 2. EDTA in an experiment was not dry would it effect the EDTA solution? 3. EDTA in an experiment was not dry would ...
January 30, 2013 by AhmadM

Math - Credits & finance charges
On the May 1 billing date, Mary had a balance due of $970.60 on her credit card. The transactions during the following month were: May 5 Payment $400.00 May 10 Charge: airline tickets $381.00 May 22 Charge: hotel $270.60 May 25 Charge: florist $60.20 The interest rate on the ...
March 10, 2008 by Sunny

chem expirement!
You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose enthalpy of reaction is ...
May 17, 2007 by rob

Algebra
When making a phone call using calling card a call lasting 3 minutes costs $1.60. A call lasting 10 minutes costs $4.40. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that relates to the cost of making the call y, to the ...
August 11, 2009 by coried

math
salim and medha are comparing results from a 2-day lab experiment. on monday, salim's results showed that 0.907 of the perticles were charged while medha's results showed that 92% of the particals were charged. who on what day had the greatest percentage of particles in their ...
February 17, 2016 by jjiiddss

biology
27. Pretend you are a carbon atom that was part of a molecule of CO2 dissolved in the water at the beginning of the experiment. Describe a path you could take through both organisms in this experiment, including the molecules you would be a part of and the chemical reactions ...
February 23, 2013 by roger

computer programming
Paying Off Credit Card Debt Each month, a credit card statement will come with the option for you to pay a minimum amount of your charge, usually 2% of the balance due. However, the credit card company earns money by charging interest on the balance that you don't pay. So even...
December 18, 2013 by abiola olumide

Statistics
If weight in the general population is normally distributed with an average of 160 and a standard deviation of 20 pounds, what is the probability of selecting someone who weights 120 or less or 170 or more pounds?
August 28, 2012 by StudentD

Statistics
If weight in the general population is normally distributed with an average of 160 and a standard deviation of 20 pounds, what is the probability of selecting someone who weights 120 or less or 170 or more pounds?
August 28, 2012 by StudentD

statistics
If weight in the general population is normally distributed with an average of 160 and a standard deviation of 20 pounds, what is the probability of selecting someone who weights 120 or less or 170 or more pounds?
February 27, 2015 by candy

strayer
You are playing Guess Your Card with three other players. Here is what you see: •Andy has the cards 1, 3, & 7 •Belle has the cards 3, 4, & 7 •Carol has the cards 4, 6, & 8 Andy draws the question card, “Do you see two or more players whose cards sum to the same value...
February 29, 2012 by Theresa

Statistics
With a known population mean of 100, and a known standard error of the mean of 7.5, what is the probability of selecting at random a sample whose mean is 110 or greater? I need help getting this started, thanks
November 8, 2010 by Bee

English
1. If your answer is right, you will get one point. 2. If you answer the question right, you will get one point card. 3. If you answer the question rightly, ou will get one point card. (Which sentence is right?)
October 18, 2014 by rfvv

Chemistry
In a chromatography experiment, a solution was prepared by mixing 12.98 mg of isopropanol plus 10.00 mL of an unknown containing some acetone, and diluting to 25.00 mL. Signal of 5.97 and 6.38 were observed for the acetone and isopropanol, respectively. In an earlier ...
December 13, 2011 by Ken

English
Did you prefer the book "The Outsiders" or the film, or parts of both?Give reasons with evidence from the book and the film. Please consider and discuss different aspects such as: -characters -themes -portrayal of gang culture -relationships, and anything else that you ...
October 17, 2011 by Lyly

business calculations
albino rats used to study the hormonal regulation of a metabolic pathway are injected with a drug that inhibits body synthesis of protein. usually, 4 out of 20 rats die from the drug before the experiment is over. this time round, 10 animals are treated with the drug. what is...
April 20, 2015 by Anonymous

STAT 250..Help!
What is the probability of randomly selecting a z-score less than z = 0.80 from a normal distribution? a)-0.2119 b)0.7881 c)0.2119 d)-0.7881
March 20, 2013 by Jane Segurra

Chemistry Subatomic particles
Fill in the chart (Numbers correspond to each other[I.E 1 in 1st group connects with 1in 2nd]) Subatomic particle found 1.Proton 2.Neutron 3.Electron Scientist 1.Rutherford 2.Chadwick 3.Thomson Experiment 1.Gold Foil Experiment? 2.? 3.Cathode Ray Tube Data Supporting Discovery...
June 29, 2015 by Joey

logic application
You are playing Guess Your Card with three other players. Here is what you see: •Andy has the cards 1, 3, & 7 •Belle has the cards 3, 4, & 7 •Carol has the cards 4, 6, & 8 Andy draws the question card, “Do you see two or more players whose cards sum to the same value...
February 29, 2012 by Theresa

math probability
3 people are selected at random without replacement out of 12 girls and 3 boys. What is the probability of selecting all girls?
April 19, 2011 by Anonymous

statistics permutations and combinations
Selecting a committee: There are 7 women and 5 men in a department. How many ways can a committee of 4 be selected if there must be at least 2 women?
November 15, 2011 by Celee

probablity
A bag of marbles has 3 red, 6 blue, and 3 white marbles in it. What is the probability of reaching in and selecting a red marble? (without looking
June 15, 2012 by whit

Statistics 250
What is the probability of randomly selecting a z-score less than z = –0.80 from a normal distribution. a)-0.2119 b)0.7881 c)0.2119 d)-0.7881
March 20, 2013 by Jane Segurra

STAT 250..Help!
What is the probability of randomly selecting a z-score less than z = –0.80 from a normal distribution? a)-0.2119 b)0.7881 c)0.2119 d)-0.7881
March 20, 2013 by Jane Segurra

Statistics
What is the probability of randomly selecting a red marble from a jar that contains 10 red marbles and 20 blue marbles?
November 4, 2015 by Bradman

Math
Jim starts with a $2000 balance on his credit card. During the first month he charges $300, and during the second month he charges $500. The credit card has finance charges of 23% APR. The first month Jim makes a $200 payment and the second month Jim makes a $400 payment. What...
November 5, 2015 by Caitlyn

English
Hello. I'm very grateful for your help and will appreciate some more. 1)Are the sentences correct: a}The team is conducting an experiment next week. b)The team will be conducting an experiment next week. c)He is giving a lecture at 5 next Monday. d)He will be giving a lecture ...
February 2, 2012 by Ilma

Chemistry
Experiment questions: Experiment 1 results mass of beaker:116.944 g mass of dodecanoic:11.629 g hot water: 175 C warm water: 10 C Average Fressing pt of Dodecanoic = 42.7 Experiment 2 results: Unknown C solution mass: 2.091g Hot water: 175C warm water: 10C average FP of UK C ...
September 7, 2015 by Jessica

math
A homeowner is selecting a pool with a perimeter of 54 meter to place in his back gard. Find the perimeter of the pool If the dimensions are cut in half.
April 14, 2016 by grace

English :D
I'm writing an essay about medical experiments and the doctors in the Holocaust. I don't need help with the essay, which I can write myself, but the thesis statement is confusing me. What am I trying to prove about the topic? The answer to this question evades me...The teacher...
March 1, 2010 by Bored

public speaking
Organizing a speech means to: research the materials. presenting a speech in a logical manner. selecting words to use. adapt the speech to audience. i'm confused between A and B
August 15, 2013 by amy

principle of public speaking
Organizing a speech means to : a)research the materials b)presenting a speech in a logical manner c)selecting words to use d)adapt the speech to audience my answer is d:))
December 17, 2015 by Vedrana

Global Business Strategies
Need help selecting a product/service and a country for a global business venture.
September 18, 2011 by Tee

com155
If I could get some help on the adverbs and adjectives in the following paragraph I wrote. I personally did not have any credit cards for a very long time. In the past I have had more then I needed and found them to just cause me problems. I was young and not very aware of the...
August 2, 2011 by writing

Physics
A juggler throws a ball with an initial horizontal velocity of +1.1 m/s and an initial vertical velocity of +5.7 m/s. What is its acceleration at the top of its flight path? Make sure to consider the sign when responding. Consider the upward direction as positive. What ...
September 13, 2014 by Alexandra

Chemistry
Dr. Bob222, Yesterday I posted a question and you answered me with how to calculate it.. Can you tell me if I'm doing this correctly?? Please! Consider the following chemical equation: TiCl4(g) + 2Mg(l) → Ti(s) + 2MgCl2(l) 3.54×107g of TiCl4(g) were reacted completely ...
February 25, 2015 by Jennie

science
I had to I an experiment where a balloon was tied to each end of a meter stick which was balanced on a pencil over two cans. I had to pop one balloon which caused the pencil, stick and other balloon to fall off the cans. I need to use particle theory to explain what happened ...
October 10, 2012 by Cherie

Math
Michael has a science project due. He knew that it would take him 4 hours to complete the project. He needed to spend 50% of his time on his experiment, 40% of his time on his analysis, and 10% on putting his project together. What is the ratio of time spent putting his ...
March 30, 2014 by Anonymous

Chemistry
seriously, any help would be much appreciated. You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery...
November 18, 2013 by kyle

Essentials of statistics
A populations of scores forms a normal distribution with a mean of 40 and a standard deviation of 12 what is the probability of selecting a sample of n=9 scores with a mean less than m=34
July 31, 2010 by Anonymous

Diversity
When selecting books for young children, you should avoid those that include 1 unusual characters that deviate from the norm. 2 exaggerated characteristics based on race or gender. 3 illustrations depicting strong females and sensitive males.
June 17, 2013 by Annoymous

psychology
Dr. Jefferson is conducting an experiment in which she is interested in the effects of caffeine on visuospatial ability in adult participants. She conducts an experiment in which she gives one group a pill containing 20mg of caffeine and a second group a placebo pill. One hour...
September 13, 2015 by Bill

Data Management Help!
A coin was tossed 1000 times in an experiment to decide whether it really had an equal chance of coming up heads or tails. The decision was made in advance to declare the coind NOT FAIR if the observed outcome of the experiment had less than a 5% chance of happening. Would the...
June 7, 2008 by Jenna

Data management
A coin was tossed 1000 times in an experiment to decide whether it really had an equal chance of coming up heads or tails. The decision was made in advance to declare the coind NOT FAIR if the observed outcome of the experiment had less than a 5% chance of happening. Would the...
June 10, 2008 by Jenna

math
dale placed six cARDS IN A BAG.QONE CARD IS LABELD 1,TWO CARDS ARE LABELD2,AND RTHREE CARDS ARE LABELD 3.FIND THE PROBABILITY OOF PICKING TWO CARDS IN THE ORDER OF THE NUBERS LISTED TH EFIRST CARD IS RETURNED BEFORE THE SECOND IS PICKED ..... P,(1,2) P(3,NOT1) p(NOT2,2) P(1,3...
May 22, 2007 by sam

statistics
Find the probability of drawing a flush in 5-card poker.
November 10, 2007 by Anonymous

math
what is the probability of a six card hand cantoning no fives?
July 29, 2010 by dave

Question
did pier 1 anooce the winners of the gift card contest??
December 7, 2011 by Laruen

Probability With Cards
When drawing a card from a deck, the P(king and hearts) is:
September 30, 2013 by Alex

math: probability
How many 13 card hands can be made from a deck of 52 cards?
May 10, 2016 by Please check my answer

Math
I have a few questions on my homework assignment. I've been sick and I have no idea what I'm doing. Question 1: Assume the hights of high school bball players are normally distributed. For the boys the mean is 74" with a standard deviation of 4.5" while girl players have a ...
March 30, 2008 by Amanda

AED
Choose a grade level and a scientific concept appropriate for that level. • Plan a science experiment to explore this concept. In your paper, address the following points: o List the equipment and materials to be included in the science kit. o Explain what safety precautions...
November 19, 2008 by troyer0269

Science
So I did a science experiment and I have to wrap a coil wire around a nail and tap the other end to a battery. Then see how many paper clips will stick to the nail, and I had to wrap more coil wire around the nail over time and stuff and record the data. Now I must choose the ...
May 10, 2016 by Anonymous

English
I forgot to include the followig sentences. I really hope you can have a look at them too. 1)How did Marlow consider Kurtz and why? Marlow considers Kurtz a hallow man because inside of him there was nothing to fight the influence of the wild jungle. 2) Why did the natives ...
September 12, 2010 by Franco

Probabiliy
Another card game. In a new card game, you start with a well-shuffed full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win nothing. (a) Create a probability model for the amount ...
January 28, 2016 by Sanaya

Biology
hi! so I have to make an experiment on heat loss & insulation and so, I did an experiment on which material insulates best against the wind of a fan--styrofoam, plastic or aluminum can. each has hot water in it but the styrofoam took the longest for the hot water to cool ...
November 12, 2012 by Cara

7th grade Science
Can you check my answer below, please? Elizabeth did an experiment to test the effect of salt water on rusting rate of a nail. She put 3 nails in the same bowl of salt for one week. How could she improve her experiment? Ans: 1) place each nail in a separate bowl with different...
October 1, 2014 by Alexis

math
write an inequality for each problem.Then solve the inequality. 1. You and the chess teacher have been playing chess for 18 minutes.To make the chess club, you must win the game in less than 45 minutes. How much time do you have to win the chess game? 2. Your phone card allows...
February 28, 2013 by peter

NEED HELP PLZ!!! STATS
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this experiment is completed...
October 23, 2011 by Jennifer

chemistry
n one experiment, a mixture of 1.000 mol acetic acid and 0.5000 mol ethanol is brought to equilibrium. A sample containing exactly one-hundredth of the equilibrium mixture requires 28.80mL 0.1040M Ba(OH)2 for its titration. Calculate the equilibrium constant, , for the ethanol...
March 13, 2011 by gss

Math
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this experiment is completed...
October 21, 2011 by Jen

Stats
Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this experiment is completed...
October 23, 2011 by Jennifer

statistics
Two cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of Jacks drawn in a set of 2 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this experiment is completed ...
October 4, 2012 by mom

Finance
What is the elaborate process for balance transfer between card accounts?
November 10, 2009 by Chitra

English Lit.
How do you correctly add source card info to your report?
December 20, 2009 by Brenda

statistics
If a card is drawn at random from a deck of 52, what is the probability that it is an ace or a heart?
September 15, 2011 by Kate

English/ Literature
What does "wild card" mean? Choose any literary device?
June 18, 2012 by IB student

Statistics
Can you get the mean, median, and mode from a list of credit card names?
January 19, 2013 by Tonya

Math
The probability of pulling a heart or a red card from a deck of cards is?
October 12, 2013 by Alex

Algebra
Probability of drawing a red diamond from a 52 card deck of cards.
April 22, 2016 by HeLp

English
I am working on an assignment that requires we write out our thesis statement and then write paragraphs that support this. Can I get your feedback on what I have so far? Thesis Statement: Even though having a credit card can help teach financial responsibility with some, ...
July 5, 2011 by Student 155

statistics
A class consists of 50 students, 20 of them are girls and boys, 10 them are rich and remaining poor, 5 of them are fair complxioned, 3 are intelligent. What is the probability of selecting a fair complexioned rich intelligient girl?
February 20, 2011 by uma

Statistics
Find probability of getting outcome of heads and a five when a coin is tossed and a single die is rolled. = .50 for coin toss .17 for die Poll confidence level. Common for public opinion polls to have confidence level of 95%.If 5 different organizations conduct polls, what's ...
December 5, 2006 by David

mah
Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra. b. ...
April 7, 2015 by excel

mah
Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra. b. ...
April 8, 2015 by excel

stats
The percent of fat calories that a person that in America consumes each day is normallydistributed with a mean of 36 and a standard deviation of 10. Suppose that 16 individuals are randomly chosen for an experiment. 1. Completely describe the distribution of sample means for ...
April 28, 2013 by Kayla

moments of inertia
I determined the area moment of inertia and the product of inertia of the cross-section of a beam about the centroidal axes using equations. I am now asked to design an experiment to verify the results that I obtained through equations. Can someone please suggest an experiment...
April 7, 2010 by Claire

maths probability...
I can't answer this exam question! Please help me: Jodie and Karen play a game with a pack of 40 numbered cards. There are four cards with each number from 0 to 9. Jodie picks a card and keeps it. Karen then picks a card. What is the probability that they both pick a number 5...
May 30, 2007 by jaffacakes

Diversity
When selecting books for young children, you should avoid those that include 1 unusual characters that deviate from the norm. 2 exaggerated characteristics based on race or gender. 3 illustrations depicting strong females and sensitive males. Is number 2 correct?
June 17, 2013 by Annoymous

Chemistry
1. Explain in terms of rate laws and/or reaction quotients why the product’s low solubility favors the forward reaction over the reverse. The forward rate law is rate = k[maleic acid]n and the reverse rate law is: rate = k[fumaric acid]n. Consider how the rate laws are ...
October 25, 2015 by Andrew

statistics
We have a group of 75 people and for their raw scores, you are given the Mean (M = 30) and variance (VAR = 16). Assuming a normal distribution of scores, what is the probability of randomly selecting a score between 27 and 31 for this group?
February 29, 2012 by james akbar

Statistics
A batch consists of 20 bad apples and 80 good ones. What is the probability of selecting 2 good apples when two are randomly selected if the first selection is replaced before the second is made?
July 15, 2013 by Carrie

Curriculum
Which of the following is not something to be considered when selecting a theme for a particular group of children? A. The availability of resources B. The relevance of the topic to the children C. Curriculum requirements D. Whether it involves technology my answer is d.
September 16, 2014 by Daniela

DRWLS
the estimate and uncertainty for experiment 1 is .15+-.01 and the .12+-.01 for experiment 2. Is the discrepancy between these two data sets significant? Why? I would say yes, the discrepancy is probably significant, because the measurements should agree to within less than ...
October 18, 2008 by Tiffany

math
In a shuffled deck of 52 cards, we remove 1 card (we don’t know which one) and use LINEAR SEARCH to find the two of clubs. a. What is the average cost to find the two of clubs, if it is guaranteed to be in the deck? b. What is the average cost if the two of clubs is equally...
July 14, 2014 by Raymond

CHEM 1LB
Which of the following safety precautions is unnecessary for the 'Mass Percent of ASA' experiment? A. Safety goggles should be worn. B. Do not ingest the aspirin used in this experiment as it may be contaminated with other chemicals. C. The FeCl3solution is acidic and ...
January 21, 2011 by Shawn Tabrizi

edu
Ms Sanchez is selecting a picture book to share with her two year olds. She will try to select a book with: a.few pictures so the story is lessened d. detail messages c.simple drawings d.fantasy type illustrations I think d not sure
February 23, 2013 by ray

Writing
Please help.. Did i identify all of the adverbs and adjectives in the following? I personally did not have any credit cards for a very long time. In the past, I have had more then I needed and found them only causing me problems. I was young and not very aware of the ...
August 3, 2011 by Anonymous

Chemistry
Calculate the theoretical yield in moles of Fe(C5H7O2)3 for this experiment. Record this number on your data sheet. Calculate the theoretical yield in g Fe(C5H7O2)3 (GMM: 353.18g mol^-1), for this experiment. Record this number on your data sheet. I really need help on these ...
October 21, 2012 by Singh

chemistry
Calculate the theoretical yield in moles of Fe(C5H7O2)3 for this experiment. Record this number on your data sheet. Calculate the theoretical yield in g Fe(C5H7O2)3 (GMM: 353.18g mol^-1), for this experiment. Record this number on your data sheet. I really need help on these ...
October 21, 2012 by Anonymous

science
A university student wants to perform an experiment using mice as test subjects. The procedure would require the mice to be injected with a specific bacterial infection and then treated with an antibiotic. Their response to the treatment would be observed and recorded. Provide...
April 4, 2008 by Dj

science
A university student wants to perform an experiment using mice as test subjects. The procedure would require the mice to be injected with a specific bacterial infection and then treated with an antibiotic. Their response to the treatment would be observed and recorded. Provide...
April 4, 2008 by Beauty

science
Hi. I am conducting a science experiment to present to a class. Details of experiment below. Materials: 1 can of non-diet soda 1 can of diet soda 2 buckets of water 1. Fill bucket 2. Put can of non-diet soda into a bucket of water. 3. Wait for the can to either sink or float. ...
November 28, 2010 by Guy

Library Science
What are 8 different types of information commonly found on a card catalogue?
February 20, 2008 by Kerry-Ann

Information Technology
Explain the following: 1)Video Graphic Card 2)Output of Sound
February 4, 2009 by Kerry-Ann

math
a card is drawn from a well shuffled deck of 52 cards .find(p drawing an ace or a 9)
October 27, 2009 by rency

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