Questions Asked on
April 22, 2007

Chemistry
Hi, I posted yesterday with this lab question. "Calculate the molar amounts of NaOH used in the reaction with the HCl solution and with the HC2H3O2. I think I got the answer to that with the help that I received. I had 5 mL of HCl, and I was using .100 M
asked by Rachel 
math
The amount of money in an account with continuously compounded interest is given by the formula A = Pert, where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the hundredth of a year how long it takes for an
asked by Greg 
Math
Let x represent the number which shows up when a balanced die is rolled. Then x is a random variable with a uniform distribution. Let xbar denote the mean of the numbers obtained when the die is rolled 32 times. For samples of size 32, which of the
asked by J 
Science
The water in a beaker has a mass of 18g. Electricity is passed through the water for two hours. Afterward the water has a mass of only 16g. What happened to the missing mass? The water heated up due to the electrical current going through it, and some of
asked by AJ 
chemistry
the Ka for acetic acid, HC2H3O2, is 1.8x105 at 25 deg. Celsius. In a .10 M solution of potassium acetate, which of the following are true? I. [HC2H3O2] = [OH] II. [H+] = [OH] III. [C2H3O2] < .10 M a. I only b. II only c. III only d. I and II e. I, II
asked by Anonymous 
math
Please help: A continuously compounded account starts with $2500 in principal. The annual interest rate is 11.3%. What is the balance after 15 years? pert: Value= Principal*ert = 2500* e0.11(15) = 2500 * e1.65 wow. thanks
asked by Lydia 
Physics  Torque
A student of mas 70kg wants to walk beyond the edge of a cliff on a heavy beam of mass 300kg and length 10m. The beam is not attached to the cliff in any way, it simply lays on the horizontal surface of the cliff top, with one end sticking out beyond the
asked by Belle 
calculus
The base of a solid is a circle of radius = 4 Find the exact volume of this solid if the cross sections perpendicular to a given axis are equilateral right triangles. I have the area of the triangle (1/2bh) to be equal to 2sqrt(12) (1/2 * 4 * sqrt12) I
asked by mark 
math
what would the dimensions of a retangle be whose perimeter is 50(P=50)inches when the length is 2x5 ane the width is unknown The width must be 25  (2x5) = 302x, since the sum of the length and width must be half the perimeter. You do not have enough
asked by Sissy 
chemistry
what is the concentration of ions in 1.2 M aluminum nitrate solution Al(NO3)3 I count four ions )(one Al, three nitrate), so the conc of ions will be 4 times the concentration.
asked by Anonymous 
Science
A sample of water decomposes to make 4g of hydrogen gas and 32g of oxygen gas. What mass of water decomposed? How do you know? Hint: The water decomposes into ONLY hydrogen and oxygen, and the total mass does not change in the process. It's called the Law
asked by AJ 
calculus BC slope
consider the curve in xyplane by x=e^t and y=te^(t) for t is greater or equal to o. the slope of the line tangent to the curve at the point where x=3. all the answer choices are decimal points. a is 20.086, b is .342, c is .005, d is .011 and e is
asked by Anonymous 
math
I need help rounding 423,607,492 to the following place values. ten thousands million Please tell us what you think, and we'll be glad to comment on your answers. Starting at the ten thousands digit, it is now 07,492, so rounding it to the nearest, is one
asked by kim 
CHemistry
what is the molecular geometry for the following elements A) SeB4 B) carbonate ion C) XeF5+ D) ammonium ion E) phosphorus trichloride can someone tell me if im right with my anwsers and if im wrong what is the correct anwser? atrigonal bipyramid b
asked by gina 
Nutrition Ed.
Which one of the major concepts is Not included in the conceptual framework on which nutrition education is based? 1. Nutrition is how the body uses food. 2. Food is composed of nutrients required for health. 3. All persons need a variety of nutrients
asked by Jenna 
math
I need to determine the value of eah underlined digit and its place value. 42,107,000 472,336 It should be the 2 in 42,107,000 4 in 472,336 Please tell us what you think those place values are. http://csd.k12.nh.us/~mdeno/images/pvchart.gif Here's a place
asked by leslie 
English
I have a Romeo & Juliet essay to be handed in 5 days from now. I mainly have to write about 'Act 3 Scene 1'. The structure paper tells me to 'Comment on the way Shakespeare contrasts the mood of this scene with the romantic atmosphere of the previous scene
asked by Leanne 
Physics
A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 85 kg. A person pushes on the outer edge of one pane with a force of F = 63 N that is directed perpendicular to the pane. Determine the magnitude
asked by Papito 
Algebra
One number is 6 more than another. If the sum of the smaller number and 3 times the larger number is 34, find the Two numbers. I have errored somewhere please assist 3x+x=6=34 4x+4x=2x=7 I need two find both numbers Your equation does not match the English
asked by Amanda 
Physics HELP!!!!!!!!
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^3 m3. The diagram is a upright rectangle divided into small squares
asked by Mary 
math age problem
four years agoslyvia was two thirds as old as alex was then. four years from now, she will be four fifths as old as alex will be. how old are sylvia and alex now? Let S be SylVia's current age. Let A be Alex's current age. You have two equations to be
asked by plz help 
calculus
The base of a solid is a circle of radius = 4 Find the exact volume of this solid if the cross sections perpendicular to a given axis are equilateral right triangles. The equation of the circle is: x^2 + y^2 = 16 I have the area of the triangle (1/2bh) to
asked by mark 
STATdiscrete random varaibles
a driver passes 4 sets of traffic lights. the random varaible X is the number of traffic lights he has to stop at. the probabilty distribution for x is given: x 0 1 2 3 4 prob 0.1 0.2 0.3 0.2 0.2 a) find the upper quartile of the number of traffic lights
asked by mick 
math
donna took 3hours to row 18 km upstream. her return trip took 1 hour less. find the rate of rowing in still water and the rate of the current. let the speed of her rowing in still water be x km/h, let the speed of the current be y km/h going with the
asked by ineedhelp 
math
No idea how to do this. I looked in my book and there usually is a data set present to get the first, second and third quartile. The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 392 hours and a standard deviation of
asked by J 
Math
Estimate each Quotient! 717/9 463/90 12.398/4.1 56.784/7.9 57.36/9.32 363.68/3.6 349/7.4 249/81 162.58/4.4 481.4/64 468.65/8.43 311.24/5.2 638/8.2 2,322/70 534.82/9.1 34.594/4.6 409.4/48.4 364.56/69.3 Problem Solving Jane makes 20 equal payments to buy a
asked by Amiya 
science...plz help
What happens to the circulatory system when the red blood cells malfunction? and is there a disease with hemoglobin not taking carbon dioxide out of the body correctly or fast enough....plz plz help me..i really need this
asked by g 
Physics  Torque
Consider a rectangular block of mass 30kg, height= 3m, length = 2m. A force F is applied horizontally at the upper edge. The acceleration of gravity is 9.8 m/s^2. 1)What is the minimum force required to start to TIP the block? 2)What is the minimum
asked by Belle 
Community College
waht is the impact of a stock repurchase on a companys debt ratio? Does this suggest another use for excess cash? The correct subject in the subject line will get you help in a more timely manner, and will aid in not wasting the time of other teachers.
asked by Erica 
Chemistry
If a piece of metal at 20 degrees Celsius is added to an ice and water mixutre in equilibrium at 0 degrees Celsius, which of the following statements is true??? ( Note more than one can be correct) I. the amount of ice will increase II. the amount of
asked by John 
Chemistry
I am having trouble with the balancing the oxidationreduction equations that are in a basic solution. This is the first one that I'm doing that's in a basic solution, and I can't get it! I get everything right except I get 2H2O instead of one on the left.
asked by Rachel 
word problems in algebra
A square has sides of length 3x  2 cm. Express the area of the square as a polynomial. would i write this as 3x2cm^4 because there are foru sides sorry post went before i was done polynominial confuse me after thinking about what polynomial is suppose to
asked by TOMMY 
Chemistry
The multiple Choice Question: Determine delta G (free energy at standard condition s) for the reaction below, considering Kp = 8 at 25 degrees celcius. 2Ag > B The answer Choices: A.2.303 x (0.287) x (25) x log 8 [J] B.2.303 x (8.314) x (25) x log 8 [J]
asked by Tommy 
chemistry
How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water? i'm not sure if iposted this already... sorry if i did :) Fe^+2 ==> Fe^+3 + e 2e + 2H^+ + H2O2 ==> 2H2O Multiply
asked by Christine 
CHEMISTRY HELLPPPPP
which would be the best anwser here? my guess was D but i wanna be sure Ammonium nitrate is sometimes used as a high explosive which reason best explains this? A)extremely water soluble B)contains ammonium ions C)excellent commerical fertlizer D)contains
asked by chem gurl 
I NEED HELLLLPPPPP!!!!
Ive been looking all over and i cant find out if there is such thing as a carbon dioxide deficiency in hemoglobin (red blood cells)...i know theres an oxygen one called anemia but i really need one for carbon dioxide as a waste from the body....plz plz plz
asked by said so 
lcm
find the least common mutlipe of 420 196 Break down each number into prime number factors 196 = 2*2*7*7 420 = 70*2*3 = 2*2*3*5*7 The least common multiple is the product of all prime factors that occur in both numbers 2*2*3*5*7*7 = 2940
asked by tayloir 
world studies
Does the goverment have the right over education? Where in the constitution is education mentioned? Education was not inclued in the US constitution. Therefore, education was left to individual states. Thats what I though....Im doing an essay and that was
asked by Rebecca 
Algebra
I posted this yesterday but no one told me if my answers were correct. Can someone please check my answers. 1. Solve. –7x + 1 + 8x = x + 1 A) Identity B) No solution C) 1 D) 0 My answer: A) Identity 2.The length of one of the equal legs of an isosceles
asked by Noah 
eNgLiSh
If you have ever read The Five People You Meet in Heaven, do you know what the theme would be? I think it could be something like take the chances you get in life and use them because life isn't fiction, it's real, and sometimes you don't get a second
asked by Anonymous 
safety
In Japan what is the country doing to prepare for the types of disaster they may face? What agencies are in charge in this country.. Also I need to know the same thing for Sudan. What types of disasters do you mean, like health, natural, war, terrorism,
asked by Amanda 
chem  dry ice activity
when you add dry ice to water, it seems to boil. why is that? You are then transfering heat from the liquid water to the solid dry ice, which sublimes gaseous CO2 into the water.
asked by janis 
english
Hi. I know this might be kind of a stupid question, but I was wondering if a predecessor follows something or is before it? I thought it was after, but the dictionary definition makes it seem like it is before. Is it before because of the pre? Thank you
asked by Melvin 
immigrants U.S.A
Immigrants U.S.A What do you want to know about immigrants to the U.S.A.? Since most of us are descended from immigrants  who began arriving about four hundred years ago  that's a lot of time and people. Please clarify your question and we'll try to
asked by Piggy 
General Chemistry
I have two questions about this problem, I understand how it's supposed to be done but I don't understand how my teacher came to this answer, so I was wondering if somebody could confirm or deny his answer here's the problem. Below what temperature is:
asked by Vesone 
CHemistry
The first step of the synthesis is described by the reaction below. When 1.200 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of 1.0 M H2C2O4, the theoretical yield of FeC2O42H2O is ? grams im not sure what to do. do u convert 1.0M to grams first? by
asked by Jason 
CHEMISTRY HELLPPP!!!!!!
Water is often instrumental in promoting disproportionation reactions however, it cannot itself disproportionate? IS THIS TRUE OR FALSE????? Water does this "ionization" reaction to a very small extent 3H20 H3O+ + 2OH This only occurs in 1 in 10^7
asked by chem gurl 
algebra
7(u3)+2u=30 expand the parenthesis to 7u21 + 2u=30 combine the u's, add 21 to each side.
asked by ann 
Biology
How is the eartworm's digestive system adapted for extracting relatively smal amounts of food from large amounts of ingested soil
asked by Emma 
Spanish
What did Jorge Luis Borges fight for and what did he fight against? What were the measures he used to bring about change and was it peaceful or not...please do not say wikipedia because i cant find it in there thanks What you need will be in one of these
asked by Jacke 
chem  dry ice activity
why does the dry ice form clouds of white vapor, especially when you blow on it? what is the vapor composed of? The vapor is water vapor, condensed, as a fog.
asked by janis 
SPANISH
how did jorge luis borges change life today Thank you for using the Jiskha Homework Help forum. Please see the Spanish by Jackie for answers: http://www.jiskha.com/post.cgi
asked by Joe 
science
The specific heat capacity of the lava is 1600 J kg^1 degres celsuis ^1. when all the erupted lava cools from the eruption temperature of 1050 degrees Celsius to 15 degrees celsius, the heat released is 2 x 10 ^15 J. calculate a value for the total mass
asked by missy 
Chemistry
If a piece of metal at 20 degrees Celsius is added to an ice and water mixutre in equilibrium at 0 degrees Celsius, which of the following statements is true??? ( Note more than one can be correct) I. the amount of ice will increase II. the amount of
asked by John 
algebra
_5x__ + _20__ x+4 4+x change the second denominator ot x+4 Now, they have the same denominators.. (5)(x+4)/(x+4) or 5 check this.
asked by kayla 
algebra
How do you solve 1/16=64^(5x4)? thank you Notice that 16 and 64 are both powers of 2. 2^4 = 2^6(5x4) take log base 2 of each side.. 4=6(5x4) solve for x wow, okay thanks!!! so its .93?
asked by harry 
safety
In Japan what is the country doing to prepare for the types of disaster (such as tornadoes, hurricanes, terrorism) they may face? What agencies are in charge in this country.. Also I need to know the same thing for Sudan. Try this and similar searches:
asked by Amanda 
Math
Could someone please check my answers to this problem. Thanks! The license fee for a car varies directly with the value of the car. The fee for a car that is valued at $19,500 is $292.50. a)
asked by Merl 
Math
Would someone please check my answers to this problem: The license fee for a car varies directly with the value of the car. The fee for a car that is valued at $19,500 is $292.50. What is the constant of proportionality? My answer is: .105 cents per every
asked by Merl 
chem
how many ions do each produce when in a 1.0M solution CH3COOH Ca(NO3)2 NaNO3 NaCl H2SO4 To figure out this you have to be able to dissociate each one and multiply the amount of ions you get by the molarity. I believe NaCl would look like: Na+ + Cl and
asked by kim 
culture ethnics
how do you think an average american's perceptions of each group are created? Thank you for using the Jiskha Homework Help Forum. If I understand your question, most people tend to "stereotype" other ethnic groups. Often it is what they see in the movies,
asked by jj 
Maths
you have to solve the following by finding the value of x and y. can u help please? x+3(x+1)=2x 1+3(x1)=4 2x2(x+1)=5x 2(3x1)=3(x1) 4(y1)+3(y+2)=5(y4) 3y+7+3(y1)=2(2y+6) These are exercises in standard algebraic manipulation of equations. Basically,
asked by number 420 
red blood cells
when the blood doesnt clean out the carbon dioxide from the heart properly what is that defiecency called? or is it even a deficiency?
asked by notsure 
college
Hi, I would like to ask if there is someon who can recomend me a good university, for a person that wants to be a surgeon and what would be a good thing to get a major on? thanks in advance Talk with your high school guidance counselor. Then try to be
asked by claudia 
chem  dry ice activity
does the dry ice disappear more quickly in air or in water? can you explain why? supplement your explanation with a drawing of molecular behavior based on kinetic molecular theory What do you think and why? We shall be happy to critique your thoughts. The
asked by janis 
chem help ASAP!!!!
What ions are very important for the proper !@#$%^&tioning of biological systems such as nerves and cells? A)alkali earth metals B)hydrogen ions C)oxygen ions D)nitride ions E)alkali metal ions my choice is A or C can anyone help?
asked by optifree 
maths
input the following data into your calculator and obtain the best fit power regression function for y in terms of x, for the data x 1 2 3 4 6 y 18.0 14.3 12.5 11.3 10.0 choose the one option which most closely describes the power relationship between x and
asked by katie 
science
rearrange this equation 2 make x the subect. 6y = 9  3x so first i add 3x to both sides which makes it 3x  6y = 9 then do i divide both sides by 9 or wat?? can sum1 help me out here If they mean by "Make x the subject" the same as "Solve for x", then add
asked by missy 
maths
Choose the two options which are true for all values of x 1) cos (x) = cos ( x – pie/2) 2) sin (x + pie/2) = cos (x – pie/2) 3) cos (x) = sin (x – pie/2) 4) sin (x) = sin (x + 4pie) 5) sin (x) = cos (x – pie/2) 6) sin^2 (x) + cos^2 (x) = pie would
asked by katie 
Calc 121
Okay, how would you go about finding the area of a curve from 1 to 4, when y=2x+(2/(x^2))?? It's not like the problem I asked before because here, you cannot use substitution. I tried using 2x for u and x^2 for du but it won't simplify into a ln problem or
asked by Me 
math
Sam took traveled 8 hrs to his sisters house. The return trip took 7 hrs because the speed was 3 mi/hr faster. What was the Sam's speed each way? I like to set up a chart for these kind of problems, they become very easy that way D=r*t , Distance =
asked by Amanda 
math,correction
Is this correct now. Problem #1 solve by completing the square. 2x^2+8x+3=0 My answer: x=2 +/ sqrt (5)/(2) Problem #2 solve by using the quadratic formula 5x^2+3x+1=0 My answer: No solution are defined. You are not completing the square. 2x^2+8x+3=0 x^2
asked by jasmine20 
math,correction & help
is problem number 1 correct Problem #1 factor completely. x^4 + x^3 12 MY answer: (x^23)(x^2+4) or is this still factorable. Problem #2 i need someone to help me set it up for me to solve. If the sides of a square are decreased by 3cm, the area is
asked by jasmine20 
math
If a student needs an average of 70 or more to pass a course. She has scored 90, 76, and 66 on the first three exams. writing an inequality representing the score she must get on the last test to pass the course letting x be for the exam that's missing. on
asked by Amanda 
Project Management
A Gantt Chart is good for planning but not an effective tool for control. Can you please let me know if it is true or false and why? The answer is "true". See "Advantages and limitations" at http://en.wikipedia.org/wiki/Gantt_chart It tends to give too
asked by BobM 
biology
What happens to the circulatory system when the red blood cells malfunction?
asked by notsure 
algebra
How do you solve 1/125=25^6x5 please and thank you I read this as 1/125 = 256x5 or 53=256x5 Take the log base five of each side.. 3=2(6x5) solve for x. What exactly do you mean by take the log base five of each side?
asked by Melvin 
Algebra
Find two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. I've gotten this far but confused as to what the two intergers are. 5x=3(x+2)=12 5x=3x+2+12 5x=3x+14 2x=14 2x/2x=14/2 x=7 Let n be first integer, so
asked by Amanda 
Bio Genetics Quest.
A freind of yours brings up the idea that, if a person's gene were all identified and sequenced, he would be able to tell everything about that person: what they look like, how they might act, even how they will progess in life, and how long they would
asked by Richard 
Information MGT
How can a prototype be used? Prototype are used for test and evaluation: Prototypes are useful in testing form, fit, and function. Also, sometimes, prototypes are used in the engineering of manufacturing lines for production.
asked by Ms Brown 
spanish
Did Jorge Luis Borges benefit from his actions.... and also what repercussions have followed because of his actions and what is different today from him...i need specific information perferred..thx Please refer again to: http://www.jiskha.com/post.cgi
asked by Jacke 
Math (Trig Question)
OK, I've been stuck on this question for like.. an hour. Prove how cos 2x = 1. Thanks for the help! Nvm... lol I got it. There was a typo. Sorry!
asked by Jordan 
CHEMISTRY HELLPPPP
WHich of the following elements are semiconductors? Ge, Si, Te, Po, S, Al, Se, Ca i believe only Ge, Si, Te, and Se are semiconductors, can someone confirm this? did i miss or over look something
asked by Anonymous 
Chemistry
Which of these metals are important the the US economy and defense? Mn, Pt, Cr, Co, Pd, Fe i would say Cr Co Pd and Fe
asked by Anonymous 
Chemistry
Hi i kind of get these questions but i got stuck on this... What is the molarity of an H2SO4 solution if 0.25L of the solution contains 0.75L MOL of H2SO4? thanks again for yourself i really do appreciate it :) Molarity= molessolute/litersolution =
asked by Fred 
math,correction
are these correct now i hope? Problem #1 simplify (m^2)/(8) divided by (m^5)/(16) My answer: (2)/(m^4) Problem #2 multiply (3x30)/(x^24x) times (8x)/(10x) My answer: (6)/(x) No. 2/m^3 (3x30)/(x^24x)* (8x)/(10x) 3*(x10)*8x /(x10)(1)(x)(x4) x's
asked by jasmine20 
Physics
Why are igloos made of ice, aren't they supposed to keep warm? Igloos are supposed to protect from the outside temperature and wind. I will be happy to critique your thinking. Igloos are made of ice in regions where no other building materials are
asked by Kranji Secondary School 
Homeeconomics
What is self esteem? http://www.answers.com/self%20esteem?web.x=1 =)
asked by Shauna 
cultural diversity
Which is the percent of immigrants going to U.S.A. and New York? I went to www.google.com and searched for immigration u.s. new york and found all kinds of results, helpful and not helpful! One of the helpful ones seems to be this:
asked by gringrin 
Us history
I have a few questions that i have no idea... What were some of the factors that helped John !@#$%^&ennedy win the presidency? What were the results of the bay of pigs invasion? How was the berlin crisis resolved? thanks again i just have no idea wat they
asked by Fred 
music
what is a whole note called Thank you for using the Jiskha Homework Help Forum. Perhaps you mean the "semibreve." http://en.wikipedia.org/wiki/Whole_note
asked by fgsdfgdg 
biology
Ok i have a project Im doing on the red blood cells and I need to know how the blood cools down the body.... It depends. If it's colder than your body temp (say 70 degrees) then as the blood circulates close to the surface (near the skin) it looses heat to
asked by notsure 
also...
also is it true that the nervous system needs the blood to circulate better so it could get to the skin and help the nerves work correctly.... Yes, the nervous system needs blood to make the nerve cells operate. See:
asked by notsure 
vocab
i need 3 more sentences using nimble! plz help! Go to http://www.answers.com/nimble and read some of the sample uses (usually partial sentences) there. They will give you good ideas. =)
asked by anonymous 
math
estimate each qoutient I suppose you are referring to your next posted question. Refer to my answer there.
asked by Amiya 
Enlgish
I have to write a 1000 word essay on how I am going to be effective, today, tomorrow and for the rest of my life. What are some qualities and stuff to be effective? Think about  honesty, hard work, common sense, values, intelligence, knowledge, love,
asked by Tess 
factoring numbers
If 6 an 10 are actores of a number, name the four other factors of the number 5,3,2,12 who do you get that?
asked by kim 
Help in math
12.
asked by Merl 
CHEM help NEEDED
Match the following properties to the appropriate element listed Elements a) fluorine b) chlorine c) Bromine d) iodine Properties 1. has largest anion 2. is the most electronegative 3. has the highest bonding enery 4. is a liquid at room temperature i
asked by Anonymous 
Japanese
Please someone tell me a good way to understand Japanese sentence structure and how to know what particles to say after each verb and etc. Please give me a breakdown that will make learning Japanese so much easier. Thank you for using the Jiskha Homework
asked by Andew 
Math
Could someone please answer these questions for me. It is for a grade and due on Tuesday, 4/24/07. The license fee for a car varies directly with the value of the car. The fee for a car that is valued at $19,500 is $292.50. a) What is the constant of
asked by Merl 
Information MGT
What are some of the methodologies commonly used for requirements elicitation? website would be welcome also.
asked by Ms Brown 
Calculus
Find the equation of the tangent line to the graph of f(x)= (8x^23)/(x^2+4) at the point where x=1. Take the derivative of f(x). That gives you m, the slope. Then, y= mx + b Put in x,f(x) for x,y. Calculate b. I get it now. Thanks for your help!
asked by Icy 
Help
I must be doing something incorrectly. When I submit my question, all of it does not appear. Again, here is my question:
asked by Merl 
eNgLiSh
If you have ever read To Kill a Mockingbird, Of Mice and Men, or The Five People you meet in Heaven, please leave a post b cuz I have some questions that I need help on thank u in advance LOL lots of luv, Brie To Kill a Mockingbird:
asked by Brie 
To Amiya and all students
Please remember NOT to post personal information nor to include your full name. These are not Internetsafe practices. Thanks. =)
asked by Writeacher 
math
A variable is normally distributed. 42% of the possible observations of the variable lie between 20 and 28. What information does this give you about the graph of the normal curve for this variable? I am not sure how to exactly explain this. The only thing
asked by J 
Math
I am supposed to find the slope and y intercept of x=9 Just waned to verify, but the line would be vertical and so the slope is undefined, but because the line never croses the yaxis how would you verbially say this. Would the y intercept be undefined or
asked by Russell 
chem  dry ice activity
when the dry ice is in the water it occasionally makes a popping sound. how can you explain that? I expect you are hearing the stress fractures of the dry ice crystals. The same thing happens when you take VERY cold ice cubes from the refrigerator, place
asked by janis