Monday

July 28, 2014

July 28, 2014

Number of results: 9,344

**probability**

in a 2-card hand, what is the probability of holding only face cards?
*March 25, 2013 by amber*

**Card Probability**

The probability of pulling an ace or king from a deck of cards is?
*October 12, 2013 by Alex*

**chemistry**

HCL is tritrated with NaOH. KHP is then added. A possible source of systematic error in this experiment is failure to dry the KHP. If this occured, would the final wt% NA2CO3 be falsely high, falsely low, or unaffected. Give reasoning. Thanks. You have left out much of the ...
*September 6, 2006 by bria*

**math**

I'm a fraction playing card. My demominator is 4 times my numerator. Add my numerator and denominator and you get 15. Who am I?
*October 19, 2010 by Anonymous*

**eth**

Imagine yourself as a current member of that group, and consider the question, “Would I want to immigrate to the United States, and why?” Think about what opinion you would have of the immigration process, including naturalization, the costs, fingerprinting, etc. Consider ...
*January 24, 2007 by mark*

**Chemistry(Please check, thank you!!)**

For my rate of reaction experiment I have to answer the question "why did we ask you to measure the room termperature and temperature of reaction solutions". For the experiment we used 5 flasks and we put one of them in an ice bath at 6-10 degrees C. My answer is that we ...
*February 28, 2012 by Hannah*

**Physics**

In an interference of light experiment, coherent light that contains two wavelengths: 614 nm (red-orange) and 429 nm (indigo-blue), passes through two narrow slits separated by 3.12 μm, and the interference pattern is observed on an observation screen 2.17 m away. (1 &#...
*November 29, 2012 by Jalopy*

**methods and analysis of quantitative research**

The graduate selection committee wants to select the top 10% of applicants. On a standardized test with a mean of 500 and a standard deviation of 100, what would be the cutoff score for selecting the top 10% of applicants, assuming that the standardized test is normally ...
*May 26, 2012 by mary*

**math**

if P(A)=.63 in an experiment then determine P (not A)
*October 29, 2008 by jerson*

**Math**

You draw five cards from a standard deck of 52 cards. P(heart) = 4/5 (fraction). What type of probability is illustrated and why? Theoretical; the result is based on the number of possible outcomes** Theoretical; the result is found by repeating an experiment Experimental; the...
*April 23, 2014 by Jasmine*

**Science - Chromatography**

I performed a TLC of plant pigments in my lab class with a solvent of petroleum ether/ acetone (7:3) and used a silica gel plate. It is expected that the most polar pigments (chlorophyll) will be located near the bottom and the carotenoids near top. In my experiment, it was ...
*October 5, 2008 by Veronica*

**Data Management**

what is the probability that either a heart or a face card (K Q J) is chosen but the Q of heart is missing from the deck?
*January 22, 2014 by Anon*

**science**

scientist performed an experiment to determine whether ther is a connection between learning and the ability and food.the group that had been fed had retained this ability but the other had not.the probable reason that the scientist used only mice from the same pure bred stain...
*October 9, 2007 by jessica*

**Science**

. Which of these processes would NOT be a part of a scientific investigation of an infectious disease? (Points : 1) cataloguing symptoms forming a hypothesis intentionally infecting people researching the disease 2. In an experiment, 20 pea plant seeds were placed on moist ...
*June 24, 2010 by yakime*

**COM/155**

Review pp. 517–520. Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives Just wanted to know if this is correct or do I need to revise.... ...
*December 15, 2010 by BRANDY*

**Chemistry - Ksp **

i did an experiment where we titrated HCl on calcium hydroxide, and now i am confused with the calculations, i do not know if i am correct, so please help me out... Trial One volume of HCl used - 11.20mL concentration of HCl - 0.04mol/L so to get moles of HCl i used M= CV is ...
*April 25, 2011 by Farah *

**chemistry**

if calculating molecular weight of unknown by freezing point depression...All of the unknowns in the activity were nonpolar organic molecules with molecular weight= 100-250 g/mol and using around 1g of the unknown. Provide an example of a solvent that could possibly be used ...
*April 22, 2013 by JENNA*

**Experiment+ bio**

In the 1950s the heavy isotope of nitrogen (15N) and an ultracentrifuge were used in an experiment to investigate the manner in which DNA replicates. Bacteria were grown in a culture containing 15N nucleotides for several generations to ensure that only heavy 15N would be ...
*December 12, 2006 by Chalrey*

**math**

a set of 20 cards is numbered 1,2,3,... ..20. Suppose you pick a card at random without looking. Find the probability of each event. Write as a fraction in simplest form. P(3 or 13)
*March 25, 2008 by Jordan*

**MATH Prob.**

A box contains 13 white cards numbered 1 through13. List the sample space of the event choosing one card with a number greater than 6.
*August 8, 2009 by Twg*

**Algebra II**

help please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. Show work.
*April 23, 2014 by Me and I*

**Algebra ll**

Help me with this please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. Show your...
*April 24, 2014 by Me and I*

**Statistics**

The head librarian claims that books have been checked out an average of seven times in the last year. You suspect she has exaggerated the checkout rate and that the mean number of checkouts per book per year is, in fact, less than seven. Using the computerized card catalog, ...
*May 2, 2008 by Lindy*

**lab!**

Use the following description of an experiment to answer the questions. A mixture was made of water and egg white (albumin). Upon heating, the mixture coagulated. The following tests were then performed on the coagulated mixture. Test Tube 1 The mixture is added to trypsin and...
*August 9, 2006 by adam!*

**Math Probability**

A lottery game has balls numbered from 0 - 9 If a ball is selected at random, what is the probability of selecting an even numbered ball or a 5 ? I am guessing this is Mutually exclusive event and hence used the OR= P(A)+P(B) concept considering 0 as an even number I keep ...
*December 4, 2011 by HM*

**math**

Which situation can be modeled by tossing a coin three times? a. choosing which one of sixteen teams will win a tournament c. selecting a desk from thirty-six in a classroom b. deciding which English teacher of eight will win a trip to London d. picking one of six math teachers
*August 17, 2013 by Anon*

**math**

Steve was charged $60.00 interest for 1 month on a $3,000 credit card balance. What was the monthly interest rate?
*May 7, 2008 by Anonymous*

**math**

Stever was charged $60.00 interest for 1 month on a 3,000 credit card balance. What was the monthly interest rate.
*March 25, 2010 by willie*

**physics**

If you have a 3 inch by 3 inch card sitting perpendicular on a table how much air does it push when it falls?
*May 24, 2011 by michael*

**probability**

From a well- stuffed deck of playing cards is drawn. Find the probability that: a.) it is a spade? b.) it is a face card? c.) it is a jack?
*September 20, 2012 by Anonymous*

**Albebra**

A flush in a five card hand with all cards of the same suit.What is the probability of getting a flush?
*May 28, 2014 by Mike*

**Algebra II**

Help me with this question please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. ...
*April 15, 2014 by Me and I*

**Physics**

There is a very large horizontal conducting plate in the plane (consider it infinitely large). Its thickness is . The charge densities on the upper and the lower surfaces are both equal to . The goal of this problem is to find the electric field (magnitude and direction) at ...
*February 24, 2013 by P*

**ENGLISH**

Which sounds better? "If I WAS to do this experiment again, I would change the regular (plain) water to salt water." OR "If I WERE to do this experiment again, I would change the regular (plain) water to salt water."
*March 2, 2010 by Happy Face*

**Chemistry**

I did a lab and got a bunch of questions about the lab. Here is what my lab was about: Properties of alcohols: First, I wrapped the bulb of a thermometer with a tissue secured with a wire. Then I squeeze enough methanol onto the tissue to completely saturate. At the same time...
*May 18, 2009 by Anonymous*

**statistics**

1.a person selects a card from a deck .it is a red card ,he wns 1$.if it is black face card between or including 2 and 10,he wins $5.if it is black face card,he wins $10 and if it is black ace,he wins $100.find the expectation of the game is to be fair? 2.if 30% of all ...
*December 3, 2011 by Maro*

**earth science**

Science fair help..about soil.. and UV rays..? my topic is how can natural or artificial UV (ultraviolet rays) affect the humus soil and also the grass growing in it? I took 5 plants and put it near the window and the other ones i put it near an artificial (plasma black light ...
*May 11, 2009 by s*

**Business English**

Selecting concrete words 22. we have found that young men are best for this work. 23. She makes good grades 24. John lost a fortune in Las Vegas. 25. if we don't receive the goods soon we will cancel. 26.some years ago she made good money 27. His grades on the aptitude test ...
*October 18, 2011 by efi*

**math**

You toss a coin 15 times. P(heads) 2/5 = a. experimental; the result is found by repeating an experiment. b. experimental; the result is based on the number of possible outcomes. c. theoretical; the result is found by repeating an experiment. d. theoretical; the result is ...
*May 1, 2014 by ms.sue help please*

**math**

two card are chosen at random from a standard deck of cards with replacement. What is the probabilit of getting two aces
*January 17, 2011 by Anonymous*

**ctu math**

calculate the interest charge on a $5.000 balance with the visa student card annual interest rate of 10.8%
*August 3, 2013 by simone*

**Physics**

A 12,000kg railroad car traveling at 12.0m/s couples with an identical car sitting on the tracks. What is the speed of the joined card?
*April 22, 2014 by Shon*

**statistics**

Consider a random sample of 37 students, and consider the number who graduate in six years. . Find the probability that 20 students in the sample graduate in six years
*March 20, 2012 by Jack*

**Health Care**

Describe an example of “abnormal” endocrine function by selecting a gland, a hormone it is supposed to release, and how the target organs are affected when that specific endocrine process does not function properly. How would you explain the process to a younger patient? Offer...
*August 18, 2009 by need a serious and urgent help with this*

**statistics**

We believe that 77% of the population of all Business Statistics I students consider statistics to be an exciting subject. Suppose we randomly and independently selected 40 students from the population. If the true percentage is really 77%, find the probability of observing 39...
*August 8, 2010 by yamini*

**probability**

a bag of 100 marbles contains 0 blue, 25 green, 25 mixed,and 20 clear. what is the probality of selecting a blue? ablue and green? a marble that is not clear? ablue on the first draw and a clearon the second draw? a
*April 25, 2011 by ryee*

**probability**

a bag of 100 marbles contains 30 blue, 25 green, 25 mixed,and 20 clear. what is the probality of selecting a blue? ablue and green? a marble that is not clear? ablue on the first draw and a clearon the second draw? a
*April 26, 2011 by ryee*

**algebra**

If there are 8 red disks numbered 1 through 8, and 6 yellow disks numbered 9 through 14 placed in a box. Find the probability of selecting a red disk numbered 3.
*November 14, 2010 by Kelly*

**math**

A jar had 16 marbles 4 are red . One marble is drawn and not replaced. Then s second marble is drawn . What is the probability of selecting a red marble and then another red marble?
*February 21, 2013 by mary jackson*

**math**

A jar had 16 marbles 4 are red . One marble is drawn and not replaced. Then s second marble is drawn . What is the probability of selecting a red marble and then another red marble?
*February 22, 2013 by mary jackson*

**math**

A jar had 16 marbles 4 are red . One marble is drawn and not replaced. Then s second marble is drawn . What is the probability of selecting a red marble and then another red marble?
*February 22, 2013 by mary jackson*

**math**

A jar had 16 marbles 4 are red . One marble is drawn and not replaced. Then s second marble is drawn . What is the probability of selecting a red marble and then another red marble?
*February 25, 2013 by mary jackson*

**research methods**

a bag of 100 marbles contains 0 blue, 25 green, 25 mixed,and 20 clear. what is the probality of selecting a blue? ablue and green? a marble that is not clear? ablue on the first draw and a clearon the second draw?
*April 24, 2011 by maria*

**science**

a placebo in an experiment is also know as this
*October 16, 2007 by carlo*

**science**

what is a constant and control in a experiment
*January 23, 2008 by jasmine*

**Biology**

What are the parts of a controlled experiment?
*December 15, 2008 by Anonymous*

**science**

an experiment for ORGANIC FOOD!!!!!!!!!!!!!!!!!!!!!!!!!!
*January 31, 2011 by jugveer's cousin*

**science**

what does an experiment prove /or disprove?
*March 26, 2011 by maria*

**Social Studies**

Why were the Native Americans so important in the clash between the French and British? Explain which side, French or British, received the best advantage with the Native Americans. Provide evidence supporting your reason for selecting that side.
*November 15, 2013 by Dayana*

**Chemistry**

Can someone check my answers? These are based off of an experiment which is determining the proportionality constant, R, in the ideal gas equation. 1. Suppose a student runs into some procedural and calculation difficulties. State the effect the following would have on the ...
*April 1, 2007 by Brandon*

**algebra 2**

Two cards are randomly drawn from a standard deck replacing the card after the first draw. Find the probability of drawing a Jack followed by an Ace.
*May 21, 2010 by Thomas*

**math**

All 26 letters of the alphabet are written on cards and shuffled. If one card is pulled out randomly, find the probability. (note Y is not considered a vowel for these problems) P(A or Z) =
*February 2, 2011 by andrew*

**English**

Can you check this sentence, it's really urgent. Before sending you details of my credit card, I would like you to confirm the offer made to me by Mr Smith, your Reservation Executive.
*June 3, 2011 by Henry1*

**math**

Referring to the figure, think about first picking a card and then rolling the die. Give the probability in simplest form. P(A, 1) = ____ i am confused with this problem.. please help?
*April 5, 2012 by Cheril*

**Statistics**

You are dealt a hand of three cards, one at a time. Find the probability that your third card is your first jack. A) 0.068 B) 0.145 C) 0.127 D) 0.077 E) 0.00018
*October 4, 2013 by Larry*

**English**

I left out these three last statements. Can you please consider them two? Many thanks again, Ms. Sue! 1) As we are short of time (as the deadline is approaching), we urgently need to know if you would be interested in such a partnership. 2) If you have other proposals as to ...
*January 15, 2012 by Henry2*

**Statistic **

Suppose you roll a die 10 times and record the proportion of sixes. Suppose you then conduct a simulation of this experiment, first 100 times, then 1000 times, and draw one histogram of the proportion of sixes found after 100 simulations and a second histogram of the ...
*January 26, 2014 by Nick*

**Art**

Today, decisions in planning, selecting, and/or creating artwork for public display are made in the following way. Choices are: A. They are the decision of the artist B. by collaboration among the community, artist, and local government. C. They are the decision of the mayor ...
*February 15, 2012 by Samantha*

**Algebra**

3. There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. Show your work. Help! I'm ...
*April 27, 2012 by Liz*

**Statistics**

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
*June 21, 2010 by Jacob*

**Statistics**

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
*June 21, 2010 by Jacob*

**statistics**

Four jelly beans are selected, one at a time from a bowl containing 6 black, 6 red and 6 green jelly beans. Let x represent the number of black jelly beans selected in 4 draws from the bowl. (A) If this experiment is completed without replacing the jelly beans, explain why x ...
*November 28, 2010 by kelly*

**math**

A lottery game has balls numbered 1 through 15. If a ball is selected at random, what is the probability of selecting a ball showing an even number or the number 12? I thought the answer would be 7 even numbers and 1 for the 12 which would be 8/15 is not an option for the ...
*November 27, 2010 by m*

**math**

your credit card balance is $1150 and the minimum monthly payment required is 3%. what is the minimum amount you must pay this month? A $25.50 B $31.00 C $34.50 D $39.00
*October 28, 2008 by isabel*

**Biology**

If you've seen the movie GATTACA : What was in the card Eugene gave to Vincent? Why does Eugene think that he got the better end of the deal?
*March 4, 2009 by Taylor*

**math**

Two cards are drawn without replacement from a deck of 52 cards. What is the probability that both are tens, if the first card was a ten?
*November 28, 2010 by m*

**stat**

a credit card company estimated that 62% if its customers are males. The company is considering a randomly selected sample of five people.
*November 28, 2010 by tanya*

**English 3**

In the sentence I gave Ellen and Jane the card, the word Jane can be replaced with the objective pronoun her. True <------is this one False
*July 30, 2012 by Amy*

**Probability**

In the card game bridge, each of 4 players is dealt a hand of 13 of the 52 cards. What is the probability that each player receives exactly one Ace?
*November 9, 2013 by Anonymous*

**Probability**

In the card game bridge, each of 4 players is dealt a hand of 13 of the 52 cards. What is the probability that each player receives exactly one Ace?
*November 10, 2013 by la la ala ala*

**math**

Burt has an outstanding balance of $235.86 on his credit card account. What is the finance charge for the month if it is calculated at 1.75% per month?
*January 21, 2014 by ryhan*

**Social work**

What kinda of game board or card game should I create about gay people? I need ideas. Thanks.
*April 28, 2014 by Jessica*

**Biology**

I'm so horrible at biology so help is appreicated; "The following experiment is to test the limits of cell population growth. Cells were grown in six flasks under different conditions. Eash flask contained a nutrient broth of the same concentration. The table below shows the ...
*January 15, 2008 by Lindsay*

**science**

Discuss the importance of each step in the scientific method. Why do you think scientists utilize this type of experimentation and reasoning? I will be happy to critique your thinking. Try this site: (Broken Link Removed) Steps of the scientific method 1. Name the problem or ...
*June 6, 2007 by Anonymous*

**biology /check please**

Use each terms below just once to complete the passage. (1)experimental results ,(2) experiment(s), (3)hypotesis ,(4) laws ,(5) scientific journals , (6)theory ,(7) valid ,(8) verify. When (experimental) results are reported in (scientific journals) other scientits may try to...
*December 23, 2010 by joy*

**Literature**

What literature do you consider to be part of the United States' current literary canon, and why? o How do those selections reflect the cultural tradition of the United States? o What do you consider to be part of your personal literary canon?
*August 9, 2010 by Jamie*

**Literature**

What literature do you consider to be part of the United States' current literary canon, and why? How do those selections reflect the cultural tradition of the United States? What do you consider to be part of your personal literary canon?
*April 3, 2011 by Sonya*

**Chemistry**

Help needed for writing up a balance chemical equation for an acid/base titration: for an extended experimental experiment we tested the total acid content of orange juice, then had to write the balanced chemical equation for the experiment to do further calculations but i am ...
*November 3, 2007 by Lauren*

**student supervision**

what is another name for the illness known as pediculosis? (a)chicken pox (b)ringworm (c)strep-throat (d)head lice(my answer) who does most of the talking in a student conference? (a)student(my answer) (b)teacher (c)teacher aide (d)parent when your checking out books where ...
*August 25, 2011 by susue*

**Statistics**

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
*June 14, 2010 by John*

**Physics**

There is a very large horizontal conducting plate in the x−y plane (consider it infinitely large). Its thickness is h. The charge densities on the upper and the lower surfaces are both equal to +σ. What is the magnitude of the electric field? Express your answer in ...
*February 21, 2013 by Anonymous*

**Psychology**

I need to design an experiment with an independent variable and 2 levels. I would like to experiment with whether people say something when someone removes an object from a bag. So far I have Independent Variable -Removal of Object from bag 1st level-removal of significant vs...
*October 30, 2011 by Anonymous*

**sci**

would you consider an animal, like lion on top of the food chain, or the very bottom? ya never know what's out there... but ya, personally i'd consider lions at the top of the food chain. The food chain is determined by who eats whom. At the top of the food chain, that animal ...
*October 4, 2006 by emma*

**English**

I left out two statements. Can you please consider them two? 1) As we are short of time (as the deadline is approaching), we urgently need to know if you would be interested in such a partnership. 2) If you have other proposals as to the topics to be dealt with within our ...
*January 15, 2012 by Henry2*

**Statistics**

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
*June 16, 2010 by Jacob*

**Statistics**

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
*June 17, 2010 by Jacob*

**physics**

Question Part Points Submissions Used 1 2 3 3/3 0/2 0/5 3/10 1/10 1/10 Total 3/10 Consider a conical pendulum with a 90.0 kg bob on a 10.0 m wire making an angle of θ = 3.00° with the vertical. (Consider + to be towards the center of the circular path.) (a) Determine the ...
*October 22, 2011 by carlton*

**Financing **

Reflect on your experience with investing. What type of investments do you currently own/manage? What decisions are you responsible for making in regard to management of the investments? At this time, how comfortable are you with advising others on selecting investments? How ...
*October 25, 2010 by troy*

**psychology**

what are the main features of a lab experiment
*September 11, 2007 by bob*

**biology**

the sigle factor that is altered in an experiment is the?
*August 1, 2008 by james*

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