Friday
April 29, 2016

Posts by Aria

Total # Posts: 195

Chemistry
Consider the generic reaction between reactants A and B: 3A+4B→2C How many moles of B will be in the reaction vessel once the reactants have reacted as much as possible? (Assume 100% actual yield.)
April 29, 2016

Math
What angle in the first quadrant could you reference to help you find sine and cosine of each of the following angles ? 330 120 113 203
April 12, 2016

Chemistry
The rock in a particular iron ore deposit contains 84 % Fe2O3 by mass. How many kilograms of the rock must be processed to obtain 1100 kg of iron?
March 31, 2016

Chemistry
A sample of propane, C3H8, contains 10.0 moles of carbon atoms. How many total moles of atoms does the sample contain? Express the total number of moles of carbon and hydrogen numerically.
March 30, 2016

Chemistry
Mole calculations: How much does 2.5 x 10^24 molecules of p2o3 weigh ?
March 3, 2016

Math
Solve: 0=x/30-0.01y+0.07
February 23, 2016

Math
Add or subtract rational expressions. 16x-12/4x^2+5x-6-3/x+2
February 9, 2016

Math
Solve the equations below. Check your solutions. 3x-5/2=4x+1/4
February 1, 2016

Math
Solve the equations below. Check your solutions. 8/k=14/k+3
February 1, 2016

World history
How did Ghana, Mali, and Songhai get so advanced? The main export was gold, which made each kingdom wealthy and strong, and provided them with the conditions necessary for cultural and intellectual achievement. Is this the answer??
December 17, 2015

World history
The main export was gold, which made each kingdom wealthy and strong, and provided them with the conditions necessary for cultural and intellectual achievement. Is this the answer??
December 17, 2015

World history
How did Ghana, Mali, and Songhai get so advanced ?
December 17, 2015

computer
The field names in a database are also known as A. category or column heading ** B. The name of a row C. Individual cells in a database D. Records Am I right..?
December 1, 2015

Science plz help
Describe how community residents and authorities can prepare for an earthquake and its aftermath. Review earthquake advice from the USGS, the American Red Cross, and other agencies. If you live in an area that is susceptible to earthquakes, include suggestions specific to your...
November 30, 2015

technoligy
I knew the answer was Sum thought I was wrong. Got an F on it
November 22, 2015

World history
What did Machiavelli describe in his book called the prince?
November 9, 2015

Science help
The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the length of a football field, you will find that each yard on the field will equal 46 million years, and each 10-yard section will equal 460 million years. Use this information...
November 4, 2015

Math
*how
October 29, 2015

Math
3d-10=5 (d-4) i don't understand hoe to solve the problem... plz help
October 29, 2015

Algebra 2
The cows at the evaleen dairy produce enough milk to fill a 4800 gallon tanker truck each day. The milk is then hauled to processing plant where it is put into smaller storage containers and then used to fill gallon jugs that are delivered to local stores. The storage ...
October 25, 2015

Chemistry
Ion flame test Why is it important to not let the wooden splint burn ?
October 25, 2015

Maths
how would you solve for 't' with this equation? 10=-2^(-t+2.5)+10
October 19, 2015

Physical Education
#7 is the only one that is wrong. It should be a) forward The rest are good! :)
October 19, 2015

Math
Allen has a piece of rope that is 84 inches long. He cuts off one piece that is 43 3/4 inches long and another piece that is 31 5/8 inches long. What is the total length of the remaining piece of rope after the two cuts are made?
October 13, 2015

Chemistry
THE LIMIT DOES NOT EXIST!
October 13, 2015

Algebra 2
The answer is gotti.
October 13, 2015

Calculus
dfedrdftgvnh b
October 13, 2015

Science
I got 10/10 anyways :3
October 8, 2015

Science
Thanks
October 8, 2015

Science
But I need the answers and help =( I don’t wanna fail
October 8, 2015

Science
Cmon someone!!!!
October 8, 2015

Science
Someone?!
October 8, 2015

Science
1. Which of the following traits is acquired? A. The number of petals that grow in a plants flower B. the wing shape of a wild bird C. The ability of some gorillas to learn sign language** D. A cheeta’s ability to run faster than any other land animal 2. The height of a ...
October 8, 2015

6 grade math
Erin buys a bag of peanuts that weighs of 3/4 of a pound. Later that week, the bag is 2/3 full. How much does the bag of peanuts weigh now?
August 27, 2015

Science help
and a sob is an arrogant person who commonly looks down on people who are lower than them who beg for help and such so arent you basically being a snob towards someone just because they ask for help and do not understand some things and just want the answer? So how is someone ...
April 24, 2015

Science help
i stumbled upon more of a cat fight rather than a question. Doesnt make sense how someone is an immature snob if they came for answers when everyone here does that. Calling someone an idiot just makes you look more immature than the rest. Why is there always that one hypocrite...
April 24, 2015

Math
A new fence is constructed on three sides of a housing block with area 240 m2. The fourth side facing the road is left open. If 52 m of fencing is used, what are the dimensions of the block?
March 29, 2015

Algebra
rational
March 26, 2015

Math
An open-topped box is constructed from a piece of cardboard with a length 2 cm longer than its width. A 6 cm square is cut from each corner and the flaps turned up from the sides of the box. If the volume of the box is 4050 cm3 , find the dimensions of the original piece of ...
March 24, 2015

Science
same i go there too
February 16, 2015

Calculus
Thank you. :) I was wondering, did you break up the fractions and then integrate it?
February 9, 2015

Calculus
Can someone show me a step by step process, along with explanations on how to do this problem? Thank you. :) Evaluate the integral ∫ [(x^2 - 1)/(x^2 + 1)]dx?
February 9, 2015

Physics
I don't really know where to start on the problem. Would I use V = k(q/r)? But what would I do afterwards. Much explanation on how to go about the problem is much appreciated. Thank you. 1) Three point charges are arranged at the corner of a square of side l. What is the ...
February 8, 2015

Calculus
Thank you so much. Although for problem number 1, I realized that I inputted it incorrectly (having problems with my + key). It is actually: 75/(1+6e^0.2x) = 30 Would I still solve it the same way but subtract 1 to the other side?
January 31, 2015

Calculus
Hello, I really need help on these two homework problem. >< In problem #1, I believe it is related to the exponential functions and their derivatives section...in Calculus II? So, surely there should be a ln in the solution as well? I would like a step by step process ...
January 31, 2015

Science Help!
I think you are right.
November 12, 2014

PLEASE HELP ASAP Language Arts
Us tutors won't do your work for you. We are happy to check your answers but we won't give you the answer.
November 10, 2014

Math
I think she would have 12 choices because: She has four colors: 4 She can choose three: 3 4 * 3 = 12
November 5, 2014

data analysis w/spreadsh w/lab
The outcome of what?
November 4, 2014

Math
Anytime
November 4, 2014

Math
Yep
November 4, 2014

Math
So, you have to do the same thing like in th last question. 20 * .10 =??
November 4, 2014

math
I am not completely sure, Laura but I think the answer would be feet.
November 4, 2014

MGMT
Yeah, Ms. Sue is right. You definitely need to include those factors into it
November 4, 2014

MGMT
Well, if you set a good example, or if you aren't rude to any of the worker, they will respect you better. Their is a higher chance of the workers treating the manager with respect if the manager is kind and hard working like all the other workers.
November 4, 2014

Math
You're welcome, Amy
November 4, 2014

Math
Well, there is 4 trees in the park.
November 4, 2014

Math
This is how I wold solve this: 9 * .45 = ? Use a calculator or something to figure it out. Hope I helped. :)
November 4, 2014

Math
Yes
November 4, 2014

Math
The equation would be 16/12 because there are twelve boxes and all of them added up together would be 16. So you would write your equation like this: 16/12 = 1.33... and so on.
November 4, 2014

Math
Okay. I got it. I know how to do this question now.
November 4, 2014

Math
Oh, wait. I'm sorry. Hold on. I got this wrong. I hope you aren't mad. Let me re read the question.
November 4, 2014

Math
Okay, good. So you have $1.92 per box So your equation that you would put down would be...?
November 4, 2014

Math
Okay, so you have twelve boxes of pencils. Lets say this: $ was one box of pencils Well, you have twelve so... $ $ $ $ $ $ $ $ $ $ $ $ each of those boxes cost 16 bucks. So what is 16 * 12?
November 4, 2014

Science 8
What about the third law?
October 8, 2014

Science 8
How are Newton’s second and third laws of motion important to your everyday life? Please help me! I've looked everywhere and I can't seem to find an answer.
October 8, 2014

math
If you had $3.00, but you used $4.00 how much would you have left?
October 8, 2014

math
Do you need help solving the problem?
October 8, 2014

math
-11 is your answer
October 8, 2014

Calculus
Oh wow, thank you so much!
May 27, 2014

Calculus
Find all values for c in the intercal (1,4) so that the slope of the tangent line at (c,f(c)) equals the slope of the secant line through (1,1/3) and (4,2/3) where f(x) = x/(x+2) 1 </ x </ 4 (<-- that is suppose to be the less than or equal to sign) I'm not sure ...
May 27, 2014

chemisrty
A solid acid is dissolved in enough water to make 200 ml of a solution. 40.0ml of the solution is titrated to a phenolphthalein en point with an NaOH solution. The neutralized solution and the remainder of the acid solution are then mixed and the PH of the resulting solution ...
April 16, 2014

chemistry
Propionic acid has a ka of 1.3x10^(-5), 50.0ml of a buffer solution having a pH of 4.65 is to be prepared using a 0.20 M solutions of propionic acid and sodium propionate. How many ml of each of these solutions must be mixed? Thanks in Advanced !
April 16, 2014

Biology
How does diving bradycardia reflex help explain why we can survive after falling into cold water and being submerged for long periods of time? Give a physiological reason that explains the relationship between lung size and body size. From a physiological perspective, why is ...
March 24, 2014

Statistics
Never mind, figured it out :)
February 28, 2014

Statistics
Two of the biggest soft drink rivals, Pepsi and Coke, are very concerned about their market shares. The pie chart that follows claims that PepsiCo's share of the beverage market is 25%. Assume that this proportion will be close to the probability that a person selected at ...
February 28, 2014

Statistics
Nevermind! I figured out what I did wrong!
February 27, 2014

Statistics
Let X be a binomial random variable with n = 100 and p = 0.2. Find approximations to these probabilities. (Round your answers to four decimal places.) P(17 < X < 28) I get the answer as 0.7059 but it is wrong. I can't seem to figure this out... Help please
February 27, 2014

Science Work
Yup I got 10/10 ! 10 is C
December 16, 2013

Math
Is -4+2y=-2 a direct variation, and if it is what is the constant?
December 2, 2013

Biochemistry
1. What is the overall charge of the tripeptide below pH 1.0? 2. What is the overall charge of the tripeptide at pH 12? 3. What type of intermolecular attractions could the side chains of the amino acids make with the solvent (water) at pH 7.4? (Note that these are attractions...
October 5, 2013

Chemistry
100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium hydroxide (NaOh). The Approximate pKa is 4 At the pKa, what fraction of the carboxyl group will have been converted to COO-?
September 27, 2013

Chemistry
Thank you very much!
September 23, 2013

Chemistry
Select the statements that correctly describe buffers.? 1) The pH of a buffer solution does not change significantly when any amount of a strong acid is added. 2) The Ka of a buffer does not change when any amount of an acid is added to the buffer solution. 3) The pH of a ...
September 23, 2013

Chemistry
Thank you so much, it makes a lot more sense now! :)
June 21, 2013

Chemistry
Using the reaction and the E∘ given below 2Co^3+(aq)+2Cl^−(aq)→2Co^2+(aq)+Cl2(g) E∘=0.46 V what is the cell potential at 25 ∘C if the concentration are [Co^3+]= 0.565M , [Co^2+]= 0.554M , and [Cl^−]= 0.838M and the pressure of Cl2 is PCl2= 8...
June 21, 2013

math
use the given zero to find the remaining zeros of the function: F9x)=x^3-5x^2+4x-20; zero:2i I don't get it. Can someone please show me what to do with this?
March 27, 2013

SCIENCE NEED HELP
Jose buys a new moped. He travels 3 km south and then 4 km east. How far does he need to go to get back to where he started?​
February 12, 2013

Statistics
The number of traffic accidents per day on a certain section of highway is thought to be Poisson distributed with a mean equal 2.19. Based on this, how many traffic accidents should be expected during a week long period? a. 15.33 b. 10.95 c. approximately 10.36 d. ...
October 10, 2012

Statistics
A sample of 50 values produced the following summary statistics: Q1 = 10, Q2 = 14.6, Q3 = 16.7 and x = 15.3. Based on this information, the left and right ends of the box in a box and whisker plot are, respectively, a. 10 and 14.6 b. 14.6 and 16.7 c. 10 and 16.7 d. 5.3 and 32....
October 10, 2012

Physics
A football was thrown from the line of scrimmage with a velocity of 30 m/s at an angle of 30o above the horizontal. (a) Determine the time required by the ball to reach the maximum height of its flight path. (b)Determine the distance from the line of scrimmage that a receiver ...
June 24, 2012

Physics
A 0.2 kg baseball located at the top of a building which is 100 m above the ground is thrown with an initial velocity 30 m/s at an angle of 30o above the horizontal. (a) Determine the total energy which the ball will have just after the instant that the ball is thrown. (b) ...
June 24, 2012

Physics HELP PLZ :(
A 2.0 kg mass is placed in front of a spring (K = 40 N/m) which has been compressed to its maximum of 20.0 cm. (a)If the spring is released, determine the velocity of the mass at the instant that the spring is only compressed 10.0 cm. (b) Determine the velocity of the mass ...
June 24, 2012

Physics
During a training exercise a cannon ball is fired with a muzzle velocity of 84.9 m/s at an angle of 45o above the horizontal. Determine how far from the cannon the ball will land when it hits the ground.
June 23, 2012

Physics
A 0.22 calibre rifle shoots a bullet of mass 1.8 g with a muzzle velocity of 500 m/s. If the barrel is 25 cm long, what is the average force exerted on the bullet while it is in the barrel?
June 22, 2012

math
Cohen has consistently averaged 120 yd. of horizontal distance with his 7-iron over the last two years playing golf. His ball flight typically reaches a maximum height of 24 yd. (Hint: A rough sketch will help you) a.) Create a function in vertex form that relates these ...
June 5, 2012

Math
Two consecutive integers are squared. The sum of these squares of these squares is 545. What are the integers?
June 5, 2012

Math
A bridge over a river is supported by an arch. The function that describes the arch us h(x) = -0.0274x^2 + 1.34033x, where h(x) is the height, in metres, of the arch above the water at any distance, x, in metres, from one end of the bridge. Could a sail boat with an 18m mast ...
June 5, 2012

Calculus
Thanks a lot, it makes so much more sense now! :)
June 5, 2012

Calculus
Differentiate x^2y^3+x^3y^4=11 implicitly to find dy/dx.
June 5, 2012

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