Math grd12

4,660 results, page 45
  1. Math Quiz

    Math Quiz please help fast Write the following ratio in simplest form: 32 min:36 min (1 point) 8:9 8:36 32:9 128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has

    asked by Dan on December 12, 2013
  2. Science

    I need a explanation of why u choose to put each career with the specific skill, make sure to support your answer with proper reasoning and examples. Provide two more additional skills needed for each career. I need the answer to have all the scientific

    asked by Jacelyn on January 22, 2019
  3. History/ Civics

    1.How did the capture of Vicksburg, Mississippi, take advantage of a Confederate weakness? A-The Confederacy had few soldiers and relied on its well-trained generals to win battles. B- The Confederacy had few weapons manufacturers and relied on Vicksburg

    asked by Jane on April 29, 2015
  4. I think we're doing something right

    I noticed a few things: 1. when I search for homework help on Google, we're #10 (page 1)! 2. We received so many homework questions yesterday that page 1 and 2, and half of 3, was filled up with questions from Thursday. 3. 99% of the students who post are

    asked by Leo on October 20, 2006
  5. math

    I'm working on a school math project, and i need to make my own 2 plans, i know that you can split all 17.5 ct diamonds so that each pirate would get 4.375 ct diamonds but i want to know how i would split them up, like into to 1/2 s or 1/4 and i need

    asked by Penguin.anna on September 27, 2014
  6. REFINANCE MATH PROBLEM

    I screwed up the first post with this question so re posting to find some help. A person purchased a 225463 home 10 years ago by paying 10% down and sighning a 30 year mortgage at 8.7% compounded monthly. Interest rates have dropped and the owner wants to

    asked by Phil Rewa on January 30, 2012
  7. Spanish

    1. Choose the most logical answer for this question: ¿Dónde está el teclado? (1 point) El teclado está en el ratón. El teclado está debajo del ratón. El teclado está al lado del ratón. El teclado está encima del ratón. 2. Choose the most logical

    asked by Dancer on November 1, 2017
  8. Physics

    If there was a way to accelerate a spaceship close to the speed of light to go visit some neighboring star system, one would still face the problem that every particle the spaceship finds on its way will be a projectile hitting it with almost the speed of

    asked by Ryan on October 14, 2015
  9. Psychology

    I don't understand what it is asking for or how i am suppose to know which in the story is positive... to me it doesnt seem like anything is positive.... if someone could help that would be great You are meeting with other tenth grade teachers to discuss

    asked by PJ on September 8, 2008
  10. Physics

    I'm doing a project concerning space travel to Mars, and I need some help with calculations. This is the description of the assignment: After completing Assignment 1 we realized that our small spacecraft needs to travel at over 7 km/s to keep orbiting

    asked by Nikki on May 8, 2010
  11. essay cont. to Mrs. Sue

    I disagree with Petre’s view that colleges don’t help students in real life situations. It is true that colleges mainly focus on teaching students on what’s written in books. However, colleges do offer classes and variety of workshops that help

    asked by julie on November 27, 2007
  12. Math

    Jasper's friend Tina challenges him to a game of Unders and Overs. He's never played the game before, so Tina explains the rules: "You bet what the total value will be when I roll two dice. Then, I roll the dice and their total determines whether you win

    asked by Jennie on May 23, 2016
  13. chemistry

    "Newton's law tells us that Force= Mass x Acceleration. We also know that Energy = Force x Distance and Pressure= Force/Area. Using these relationships and table I-1 [I'll type it out], derive (do math stuff) the dimensions of newtons, joules, and pascals

    asked by Jenn on September 13, 2006
  14. Repost:organizational math

    Repost for im stupid - organizational math What is the most important reason to create a backup of your files somewhere other than our computer? A. To access them on another device B. because your computer may be damaged and you risk not being able to

    asked by Ms. Sue on January 31, 2019
  15. Statistics

    For a math assignment we need to design a dice roll game with different expected values of winning. The game should require a player to make a bet on the sum of one roll of two dice. If the dice sum to that number, the player wins; otherwise, he loses. We

    asked by Jaime on February 1, 2012
  16. TO ALL STUDENTS

    Please remember that, even though it's holiday time and many tutors are away, this is still a website for homework questions, not riddles (see the link for riddles at the bottom of the main page), not personal questions, not nonsense, etc. Please remember

    asked by Writeacher on December 25, 2006
  17. mathematics

    If 3/4 of a class is absent and 2/3 of those present leave the room, what fraction of the original class remains in the room? my book says.. if 3/4 are absent, 1/4 are present hows that so? then it says if 2/3 of the 1/4 present , 1/3 of the 1/4 remain

    asked by chrissy on August 2, 2007
  18. english/broadcasting

    can you proofread my broadcast news stories I had to write.. had to write 3 of them answering the who what when where why and how... if they need revising that's fine.. from what i understand broadcast news stories have to be conversational. 1. THE

    asked by Blaze on February 1, 2013
  19. Math(CHECK ANSWERS)

    PLEASE CHECK MY MATH ANSWERS PLEASE AND LABEL THEM LIKE 1.WRONG AND STUFF THANKS ! 1.There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons? A.6:22

    asked by Matt on February 10, 2014
  20. Algebra Please Help

    Math Word problem with factoring...HELP!!! This questions has me stumped!? I have been working on it for days... A 10ft-by-15ft pool was installed in your backyard. You have $3000 left that you would like to spend on surrounding the pool with a patio,

    asked by Gina on May 6, 2011
  21. C++ Programming

    #include #include #include int main ( ) { double noe, nod, dc1, dc2, dc3, dc4, t; cout > noe; nod = noe / 12; dc1 = .50 / 12; dc2 = .45 / 12; dc3 = .40 / 12; dc4 = .35 / 12; cout.setf(ios::fixed); cout.precision(3); if (nod > 4) { goto 1; } if (nod = 4 <

    asked by sonnytsn on April 8, 2008
  22. math

    Could someone please check my math questions? any help will be greatly appreciated! Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g = drag factor, and k = length of

    asked by Abby on October 12, 2015
  23. math

    Could someone please check my math questions? any help will be greatly appreciated! Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g = drag factor, and k = length of

    asked by Abby on October 9, 2015
  24. sra JMcGuin spanish

    is the english grammar correct also. today i have my math tutor from 9 to 12 so i am trying to finish this up Can you please explain this one: yo era capaz a de conseguir = (you must drop "a") = yo era capaz de conseguir --i cant find the error i made. El

    asked by sam on January 2, 2009
  25. English III

    Hi it's me again! Could someone proofread this for me? Thanks so much! HOW ABOUT BETTER PARENTS? BY: Thomas L. Friedman In Thomas L. Friedman’s column “How About Better Parents” he discusses parent’s influence in their child’s education. He

    asked by Claire on August 12, 2012
  26. math

    Mr. Balk and Mr. Sullivan have created their own cookie factory. In their factory, they bake two and only two types of cookies: the Balkster and the Sullivander. The Balkster cookie requires 1 pound of cookie dough per dozen while the Sullivander requires

    asked by Berry on September 24, 2007
  27. Math

    I need urgent help with these 3 math problems 1. Margaret painted a mural for St. Patrick’s Day and mixed her own green paint. She mixed 3 parts yellow paint with 2 parts blue paint to create green paint. Maureen wanted to also paint a mural with the

    asked by Mike on March 22, 2018
  28. Spanish #2

    Para sacar una buena nota en el examen...Look at the drawings and write two complete sentences about what the following people have to do. 1. There is a boy reading and he is sitting on a puffy cushion. I wrote: El chico tiene que leer. Él tiene que

    asked by Larry on February 18, 2009
  29. Math 125

    I am enrolled in an online Math 125 class. I posted this question earlier in the week and never got a response, so here I am! I am just not understanding these questions. I made the tree diagram as suggested and put all the information at the bottom how I

    asked by Christine Johnston on February 18, 2017
  30. aed 205

    Read the following vignette and identify the factors that threaten the activity flow of the lesson. Once you have identified the problems, explain how you would avoid the problems if you were the teacher. Here is the story Mrs. P.waits while her

    asked by scooby on April 25, 2010
  31. Managerial Economics/Math

    I'm working on some HW for my MBA Managerial Economics class. I've got one problem down to the end, but I'm stuck. Any help would be greatly appreciated. And, of course, if you could check my work on a & b, that would be excellent. Thanks! :) 1.) The

    asked by klynn on October 5, 2007
  32. 5th grade LA

    Can you check my answers? 1. The sailboat was too tall to pass under the bridge. Which of the bolded words in the sentence begins a prepositional phrase? (bolded words: was, too, pass, under) a. was b. too c. pass d. under Ans: d (under) 2. The coach

    asked by Jared on March 18, 2018
  33. Maths , Science , English ?

    Hi I;d like to have some advice as my checkpoint exams are coming and are on the 1st of May until the 3rd.. I'm in year 9 and I'd like you to give me any advice on revising ( maths , Science and English ) and some websites other than bbc if you can thanx

    asked by Amy on April 3, 2007
  34. Java

    I need to write a Java program using an input file with the below data. I don’t even know where to begin. I have written others but this one has me totally confused. I know how to do it using math WL% = Wins / (Wins + Losses) I also wrote this to use

    asked by Jay on April 5, 2008
  35. chemistry

    If someone could figure this problem out and tell me how to do it, i would really appreciate the help! Bryson needs .003 mg of a cholesterol-lowering drug per pound per day. The drug should be taken 3 times a day. If capsules contain .010 mg of the drug,

    asked by stephanie on February 19, 2007
  36. chemistry

    225 mg sample of diprotic acid is dissolved in enough water to make 250mL solution.the pH of this solution is 2.06. a saturated solution of calcium hydroxide Ksp=1.6E-6 Then the saturated solution of calcium hydroxide is prepared by adding excess calcium

    asked by timmathy on March 2, 2008
  37. Maybe you know this one..

    Heyy, I posted this before but it kinda got pushed down and ignored, and I was hoping maybe DrBob might have an idea since no one else did! okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing

    asked by Tracy on February 3, 2007
  38. physics

    A mass is dropped from a height of 30m, and at the same time from ground level (and directly beneath the dropped mass), and another mass is thrown straight up with a speed of 15 m/s. a) How far apart are the two masses after 0.5 s? b) Will the massses ever

    asked by Henry on August 24, 2006
  39. Algebra 2

    Hey guys i have a little assignment for you guys to do. My students have had a tough time doing this and i wanted to see if any of you can get this right.The first person to get this correct i will help them with any math related problems for a week. Good

    asked by Mrs.Clinton on October 23, 2013
  40. math

    I am confused need help a computer store sold a total of 300 items last month. the store sold six times as many hard drives as they did CD-RoM drives, and half as many floppy drives as hard drives. Based on this information,, how many of each item were

    asked by Haydee on August 19, 2006
  41. C++ Programming

    #include #include #include int main ( ) { double noe, nod, dc1, dc2, dc3, dc4, t; cout > noe; nod = noe / 12; dc1 = .50 / 12; dc2 = .45 / 12; dc3 = .40 / 12; dc4 = .35 / 12; cout.setf(ios::fixed); cout.precision(3); if (nod >4) { goto 1; } if ( (nod >4) &&

    asked by sonnytsn on April 9, 2008
  42. Math

    The tail of a giant kangaroo is attached by a giant rubber band to a stake in the ground. A flea is sitting on top of the stake eyeing the kangaroo (hungrily). The kangaroo sees the flea leaps into the air and lands one mile from the stake (with its tail

    asked by Confused! on April 19, 2012
  43. microsoft excell 2007

    when working with predefined formulas in excel,what category contains the boolean functions? (a)math and trig (b)recently used (c)logical (d)auto sum my answer is c debbie needs to print her table.which of the following is not an excel print program?

    asked by susue on April 11, 2012
  44. Physics (Center of Gravity)

    In a lab in my physics class, we were supposed to find the CG of my physics teacher. My partner and I had him lie flat on a wooden (assumed uniform) board that was resting on top of two PVC pipes at either end. Since the PVC pipes acted as the base of

    asked by Brittany on May 10, 2010
  45. Physics-VASTS

    The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE

    asked by red on March 7, 2013
  46. Algebra

    -Alfonso can write 100 practice problems for the math team in 20 hours, Beauregard can write the same number of problems in 30 hours, and Clyde can write the number of problems in 40 hours. Working together, at what time will the three of them finish

    asked by Mark on December 5, 2012
  47. math

    I have a math question that goes like this: There are 500 light that have on and off switches. One person goes and turns all the lights on. The second person switches the lights from 2,4,6,8...and so on. THe 3rd person switches 3,6,9,12....and so on. This

    asked by Danielle on February 4, 2007
  48. arithmetic

    you can email me if you want i have more. A man owned 75 shares of stock worth $50 each. The corporation declared a dividend of 8 percent payable in stock. How many shares did he then own? 81 shares but how? If a scow is towed at the rate of 3 miles an

    asked by christina on July 25, 2007
  49. english

    I am trying to unserstand the difference in bias and opinion. Is there a difference? http://www.answers.com/topic/bias Read definition 2a. http://www.answers.com/topic/opinion Basically, all people have opinions, by which they express their biases. The two

    asked by jennifer on July 7, 2006
  50. Computer Programming using python

    Now write a program that calculates the minimum fixed monthly payment needed in order pay off a credit card balance within 12 months. By a fixed monthly payment, we mean a single number which does not change each month, but instead is a constant amount

    asked by Anonymous on October 28, 2013
  51. Computer Programming using python

    Now write a program that calculates the minimum fixed monthly payment needed in order pay off a credit card balance within 12 months. By a fixed monthly payment, we mean a single number which does not change each month, but instead is a constant amount

    asked by Anonymous on October 24, 2013
  52. would someone please check this math

    1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple

    asked by larry on February 8, 2007
  53. got a couple of calculus questions

    1. What is the equation of the tangent line to y = 2*x(x - 4)^6 at point (5, 10)? 2. If f(x)=8/(x^2+4) , find the slope of the curve at the point (2, 1). 3. The demand function for an item is given by x=200[1-(p/(p+2))] . At what rate is the demand

    asked by annie on July 9, 2006
  54. Physics

    A physics student of mass mm = 100 kg gets a summer job painting houses. On his first project, he builds a platform using large pine board with a mass of mb = 60 kg The board has an overall length of L = 8.5 meters and set on two 1 meter tall saw horses so

    asked by Jacob on April 9, 2010
  55. english

    hi im indiya and im here to ask you a interesting question well my question is do you no a website about balanced reports based on why children are given homework? The why is simple: Practice. Humans learn by repetition spaced over time. The average task

    asked by indiya on January 11, 2007
  56. Algebra

    1)More than 450 students went on a field trip. Ten buses were filled and 5 more students traveled in a car. a) Write an inequality to represent the situation. Be sure to define your variable. b) Solve the inequality to find the minimum number of people on

    asked by Elizabeth on September 17, 2016
  57. Language Art (Please Check)

    1.C 2.A 3.C 4.C 5.D 6.D 7.B 1.She was rivaling the mayor by A.sending money to him. B.voting for him. C.running against him. 2.In which of the following situations would you be most likely to be caught up in a commotion? A.a riot B.a math exam C.a school

    asked by matt on March 28, 2014
  58. English 2

    I have to do a 1000 word essay paper detailing the research of a career that is of interest to me.I picked a teacher but cant find any info on it. I have to get things like salary scale, retirement plans,daily duties,typical hours worked,types of training

    asked by Tim on December 3, 2006
  59. NJHS Letter Check (plz read it's really important)

    I'm writing a letter to the adviser of the NJHS in my school. Please read to see if it's good. If your confused about my post, just read the letter and you'll understand why I'm writing a letter to the adviser and why I post this post. Dear Ms. L, I'd been

    asked by Laruen on February 28, 2013
  60. C Programming

    I am new to c programming and I cannot understand the teacher for the life of me. It becomes very difficult to learn this stuff even just by reading. I'd greatly appreciate any help... The program asks for the user to input the radius and height of a right

    asked by Brandon on January 27, 2008
  61. math (rate)

    I need help! Ok here's the problem. Melissa lights 2 candles that are the exact same height at the exact same time. The blue candle takes 6 hours to burn completely. The purple candle takes 9 hours to burn completely. After how many hours will the slower

    asked by Kasie on October 25, 2006
  62. I need help

    President Bush signed the new Bankruptcy Reform Act into law around April of 2005. This law went into effect in October of 2005. This means that filing a chapter seven bankruptcy is not as easy as it once was. How did the new bankruptcy law change the

    asked by Anonymous on June 15, 2006
  63. ENGLISH

    1.Is the group of words a simple sentence, a compound sentence, a run-on sentence, or a sentence fragment? Her computer has new software, it runs much faster now. A. run-on sentence B. sentence fragment** C. compound sentence D. simple sentence 2.Is the

    asked by SKI on January 23, 2015
  64. Early Childhood Education

    1. The purpose of program planning is to A. keep children safe and healthy. B. provide routines to keep children busy. C. organize experiences that support growth and nurture development. D. let children do what they want to do. 2. The term used to

    asked by Heather on April 2, 2011
  65. Neuroscience

    I'm struggling with the following question: The opening of chloride selective channels by a neurotransmitter X will drive membrane potential toward the chloride equilibrium potential. Assume that early during cell development, Cl is pumped into the cell

    asked by John on September 13, 2015
  66. Algebra Help

    You are going to write a fairy tale! Your story should include all of the standard elements of fairy tales. Begins “Once upon a time … ” Animals can act like humans. Involves magical items or helpers. Ends “ … happily ever after.” Your story

    asked by Dina on January 15, 2015
  67. Coriolis effect

    Does anyone wish to discuss the Coriolis effect/force? Mike http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/fw/crls.rxml The thing I find teasing about the coriolis effect is that the faster the wind or an object is travelling the greater the deflection. Take

    asked by mike on August 21, 2006
  68. math

    Write the decimal as a percent: 0.3 4. Write the decimal as a percent: 5.16 5. Write the percent as a decimal: 61% 6. Order from least to greatest: 68%, one half , 0.55, 1.28 7. Write the fraction as a percent. If necessary, round to the nearest tenth of a

    asked by lynn on January 8, 2019
  69. algebra

    I cant get this one nither I tried like 4 times to get right answer. 5x+12-3x=-2x-13-x x=-5 5x+12-3x=-2x-13-x First, let's get the unknowns on one side of the equation and the knowns on the other side. 5x - 3x + 2x + x = -12 - 13 5 x = -25 x = - 5 ok I

    asked by chrissy on August 1, 2007
  70. math

    can someone help me with these math question?? Please? I would appreciate any help! Simplify #1 through 3. 1. 20/2 – 3^2 – (-2)^2 a. -3 b. 5 c. 16 d. 24 2. 3(x – 5) – (x + 2) a. 2x – 13 b. 3x – 13 c. 2x – 3 d. 2x – 17 3. (¾) / (2/5) a.

    asked by Abby on October 8, 2015
  71. Management accounting

    Suppose one chairlift costs $2 million now you have to install the lift for $1.3 million, this lift allows 300 skiers on the slopes,for 40 days out of a year, running it costs $500 a day for the 200 days that it is open, now suppose the lift tickets cost

    asked by please help !!! on May 28, 2007
  72. English

    The children noisily entered the classroom as usual after their lunch break. One little girl approached the whiteboard and posted a post-it note on it. Written on the note was a complaint she had from lunch. The teacher read the note and she signaled me to

    asked by Roxy on June 24, 2008
  73. English

    On Monday, July 30, basketball superstar LeBron James was on his way to the first day of school. This was not just any school, though. He was going to a school he helped start in his hometown of Akron, Ohio. This brought back feelings he had as a kid. He

    asked by Barry Vacker on February 7, 2019
  74. statistics

    Ok, so I'm trying to do this for my exam review. I get some of it, but not all: An electric utility is examining the relationship between temperature and electricity use in its service region on warm days. The utility has bivariate data detailing the

    asked by peter on May 15, 2010
  75. Spanish

    You want to write an e-mail to your new cyberamigo in Costa Rica. Since he just told you about his classes this year, you decide to write him about your schedule too. Write about at least three of your classes and explain why you like or dislike each

    asked by Anonymous on July 28, 2008
  76. Assertive Communication

    Roleplay assignment. Using the scenarios provided or make up your own, develop a script that shows your understanding of Assertive Communication style. You must include the victim and perpetrator role plus one or more other(s) (i.e. apathetic bystander,

    asked by John on September 17, 2009
  77. Math

    In the Math Virtually Everywhere project you completed for this module, you learned all about cell phone plans. The best cell phone plan for a customer can vary based on how much they plan to talk. The plan that is the best deal for one customer may not be

    asked by Nick on March 14, 2014
  78. Chemistry 101

    I had a snag from a question I asked yesterday, here is the thread. (My snag being the final post) I am trying to find the theoretical yield for this lab I am working on. The steps to finidng it would be great. In my lab I took 40mls of H2O + 4g of AgNO3+

    asked by Gweedo8 on June 8, 2009
  79. Repost for Dora

    solution is made by mixing 20.0 mL of toluene C6H5CH3d=0.867gmL with 150.0 mL of benzene C6H6d=0.874gmL. Assuming that the volumes add upon mixing, what are the molarity (M) and molality (m) of the toluene For Further Reading * chemistry - DrBob222,

    asked by DrBob222 on April 4, 2008
  80. English 8R - Business Letter Assignment Check

    (my English teacher's name) Care of (my full name) (school's address) 9/10/12 President Barack Obama The White House 1600 Pennsylvania Avenue NW Washington, DC 20500 Dear President Obama: Hello my name is (my name). I'm doing this assignment for my English

    asked by Laruen on September 9, 2012
  81. Chemistry

    Help needed with a calorimeter lab. I have to measure the enthalpy of a neutralization reaction between NaOH and HCl as well as find the concentration of NaOH the following ways. - using the mass and volume of NaOH - Using calorimetric data assuming no

    asked by Bibi on November 17, 2014
  82. physics rework (please help)

    A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: A uniform plank is supported by two equal 120N forces at X and Y at both ends of the plank.The

    asked by Diane on December 10, 2006
  83. Plz help :(

    1. Write the ratio in the simplest form. 16:24 (1 point) 1:2 4:3 3:4 2:3 2. Solve the following proportion. x over three equals six over nine (1 point) 18 27 2 24 3. A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to

    asked by sally on November 25, 2013
  84. math

    Arrange the fractions in order from smallest to largest. , , , 5/8,3/4,9/16,7/8 Add. Write the answer in lowest terms. 3 2/7 + 5 3/7 Subtract. Write the answer in lowest terms. 6 4/5 - 2 1/5 Evaluate. Write the answer in lowest terms. 8/15-4/15+1/15 Add.

    asked by sw on March 26, 2009
  85. homework help!!!

    Can you explain in more detail WHY ....if you live in Atlanta and your grandparents live in Seattle and they go to bed at 10 pm.. 7pm Atlanta time would be the latest they would call.... I think that's wrong. Since the sun rises in the east, the east

    asked by deanna on August 17, 2007
  86. Finance

    Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over

    asked by Jes on July 20, 2006
  87. Social Studies CHECK MY ANSWERS

    ^^^ = MY ANSWER 1. What event caused four additional Southern states to secede from the Union? A.The U.S. accepted West Virginia as a state. B.The South fired on Fort Sumter.^^^ C.Lincoln declared the Emancipation Proclamation. D.Lincoln raised an army. 2.

    asked by GOY on February 23, 2016
  88. (19) Chemistry - Science (Dr. Bob222)

    Use the following information to answer this question: Cu+(aq) + e- → Cu(s) E° = 0.521V Cu2+ (aq) + e- → Cu+ (aq) E° = 0.153 V. Given these half cell reactions, an aqueous solution of Cu+ ion in the absence of O2(g) : A. will be thermodynamically

    asked by Ana on May 8, 2014
  89. CHEMISTRY

    I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O

    asked by Allie on February 22, 2016
  90. math

    Could someone please check my math questions? your help would be greatly appreciated!! Simplify #1 through 3. 1. 20/2 – 32 – (-2)2 a. -3 b. 5 c. 16 d. 24 2. 3(x – 5) – (x + 2) a. 2x – 13 b. 3x – 13 c. 2x – 3 d. 2x – 17 3. (¾) / (2/5) a.

    asked by Abby on October 9, 2015
  91. MATH

    1. Evaluate. 54 divied (42 + 2) 2. Evaluate 120 cal/g x 4 g. Be sure to use the proper units. A) 480 g B) 480 g/cal C) 480 cal D) 480 cal/g 3. Prime numbers that differ by 2 are called twin primes. Examples are 3 and 5, 5 and 7, and so on. Which pair of

    asked by BaBa on May 30, 2008
  92. Comm 215

    Which ones are wrong? Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. _x_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good pitcher most of all. _x_True __False

    asked by Bryce on August 13, 2010
  93. Physics (please help)

    A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: A uniform plank is supported by two equal 120N forces at X and Y at both ends of the plank.The

    asked by Diane on December 10, 2006
  94. COMM215

    Can you tell me if everything is correct? Final Grammar Test Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. _X_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a

    asked by Al on February 23, 2012
  95. Statistic

    Statistic Question: I want to first start out by thanking you for your help and I also want to inform you that I do not have a strong Math back ground and is taking an Accelerated program that included this class of which I do not understand a word of so I

    asked by Tammy on February 3, 2011
  96. Comm 215

    Please guideme to which ones are wrong.. Thank you Grammar Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. x_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good

    asked by Adriana on May 29, 2012
  97. essay help

    how have you taken advantage of the educational opportunities you have had to prepare/ It’s unbelievable how each year, since the beginning of high school, my perfectly laid plans for myself have deteriorated. When I entered my freshman year, I had

    asked by Anonymous on October 25, 2006
  98. Question

    About the John Hokins Talent Search (gr 7th-8th) my friend said that I have to be in honor classes to do it. I don't believe her. I know that I have to bring my average up to a 99 or a 100. Talent Search Eligibility To enter the CTY Talent Search, students

    asked by Laruen on December 3, 2011
  99. programming

    I had to create a c code that gets a number, returns how many digits it has,the digits sum, the digits product, to check if the digits sum is equal to product if yes return "1" else return 0, and in the end write a program the prints the first 20 numbers

    asked by oded rupin on January 19, 2016
  100. math

    Show that if x is a nonzero column vector in R^n, then the nxn matrix: A = I - 2/||x||^2 * xx^T is orthogonal. Notation key: ||x|| = norm of x x^T = transpose of x I = identity matrix. Let me try to convince a math student to use "physics" notations that

    asked by mathstudent on January 13, 2007

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