Posts by aria

Total # Posts: 320

English
How does American patriotism value freedom of speech ?

Physics
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the target? how long after it is fired will the target be hit?

Chemistry
The efficacy of certain drugs is affected by pH. Many drugs are absorbed into the blood through cells lining the stomach or the small intestine by direct diffusion across the plasma membrane. Since the interior of the plasma membrane is hydrophobic, uncharged molecules cross ...

chemistry
Bicine is an amino acid, but not a building block of proteins. Rather, it is a reagent commonly used in the biochemistry laboratory. Bicine contains two ionizable groups: tertiary amine (pKa 8.3) and carboxyl (pKa 2.3) a. For each of the ionizable groups in bicine, draw its HA...

chemistry
You discovered a new diprotic acid, which you have named edmontonic acid. You want to characterize the pKa’s of edmontonic acid, so you perform a titration experiment. Your data are summarized in the table below. Your titration sample contains 150 mmol of edmontonic acid...

chemistry
In a titration of malic acid, what is the pH after: a. 0.75 molar equivalents of NaOH have been added? 1 b. 1.30 molar equivalents of NaOH have been added?

History
I'm pretty sure it's C, the appeal for preservation of democracy.

World history
What were the effects of Islam on the different culture of ancient African empires ?

World history
What were the effects of cultural diffusion on ancient Africa empires ? Is it because the three main kingdoms maintained vast trading networks across Sahara desert and into the the Middle East and North Africa

Calculus
when i plugged in ∫[1,4] π(25-(5-1/x)^2) dx into the calculator i got 41.196 but when i plugged in π(10log(4)-3/4) i got 16.558 which one is the right answer?

Calculus
for b, yes, everything is the same but instead of rotating around the x-axis, it is being rotated around the line y = 5

Calculus
Volume created when the area bounded by the curve y = 1/x, the x-axis, and the lines x = 1 and x = 4 is rotated about: a) the x-axis: 2.356 units^3 Is this correct? b) the line y = 5 I'm not sure how to do this one.

Social Studies
What did Frederick Douglass, and Andrew Jackson say about their hopes for the future of the United States? How did they each work to help change the United States? How did they each react to key events happening in the United States? Were there any key events in each person&#...

Social Studies
Which of the plans is best for the nation? In what ways is the plan best for African Americans? In what ways is the plan best for former Confederates? In what ways is the plan best for the nation’s future? Explain why the other two plans would not work.

Social Studies/History
Reed, I have tried that, but I can only fin some of the information that I need. Here is what I have left to answer: What did they say about their hopes for the future of the United States? How did they work to help change the United States? How did they react to key events ...

Social Studies/History
Can someone please help me(without giving me the answers) with some research. Each question asks about to people, but I have to answer for each person separately. The two people are Frederick Douglass, and Andrew Jackson. After all of that is done it still has to be turned ...

Social Studies
Evaluate the effectiveness of Nixon's solution to the promise he made(to find a way to stop the Vietnam war, pledging america would have peace with honor.). was it successful? how do you determine this?

history
Thank you so much Ms. Sue!

history
His solution to the promise he made, which is: to find a way to stop the vietnam war, pledging america would have peace with honor.

history
Evaluate the effectiveness of nixon's solution. was it successful? how do you determine this?

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.)

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

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?

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.

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

Math
Solve: 0=x/30-0.01y+0.07

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

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

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

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??

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??

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

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..?

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...

technoligy
I knew the answer was Sum thought I was wrong. Got an F on it

World history
What did Machiavelli describe in his book called the prince?

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...

Math
*how

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

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 ...

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

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

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

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?

Chemistry
THE LIMIT DOES NOT EXIST!

Algebra 2
The answer is gotti.

Calculus
dfedrdftgvnh b

Science
I got 10/10 anyways :3

Science
Thanks

Science
But I need the answers and help =( I don’t wanna fail

Science
Cmon someone!!!!

Science
Someone?!

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 ...

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?

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 ...

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...

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?

Algebra
rational

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 ...

Science
same i go there too

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

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?

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 ...

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?

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 ...

Science Help!
I think you are right.

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

data analysis w/spreadsh w/lab
The outcome of what?

Math
Anytime

Math
Yep

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

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

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

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.

Math
You're welcome, Amy

Math
Well, there is 4 trees in the park.

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

Math
Yes

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.

Math
Okay. I got it. I know how to do this question now.

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

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

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?

Science 8
What about the third law?

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.

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

math
Do you need help solving the problem?

math
-11 is your answer

algebra 2
Were there any extraneous solutions?

Calculus
Oh wow, thank you so much!

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 ...

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 ...

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 !

Biology
Positive feedback loops contribute to homeostasis.

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 ...

Science
JJ is right! I got 4/4

Statistics
Never mind, figured it out :)

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 ...

Statistics
Nevermind! I figured out what I did wrong!

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

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