# Posts by Unknown

Total # Posts: 1,328

Wait. How do I correct 1 and 2?

For each graph, find (a)AB to the nearest tenth and (b)the coordinates of the midpoint of AB. 1. Coordinates are A(-9, -6) B(6,6) D=19.2 Midpoint=(1.5,-6) 2.A(-2,-2) B(8,-6) D=10.77 midpoint= (3,-4) 3. A(0,3) B(-2,-2) D=5.4 Midpoint= (-1,0.5)

Geometry
Which of the following best describes the front and back cover of a textbook when closed?

Chemistry;HELP
How did he get 15 moles? What is the molarity of a 5.00 x 102 ml solution containing 2490 g of KI? 5.00*10^2ml = 500ml = .5L KI has molar mass 166, so you have 15 moles of KI 15moles/.5L = 30moles/L = 30M

Geometry, Help

Geometry, Help
SORRY! I was squaring it. Thanks for your help.

Geometry, Help
I got 369 and divided by 2. How's you get that answer?

Geometry, Help
Is #1 184.2?

Geometry, Help
would you divide 2 by 29?

Geometry, Help
Help? I'm stuck. For each graph, find (a)AB to the nearest tenth and (b)the coordinates of the midpoint of AB. 1. Coordinates are A(-9, -6) B(6,6) 2.A(-2,-2) B(8,-6) 3. A(0,3) B(-2,-2)

Geometry, Help
1. Reasoning How does the Distance Formula ensure that the distance between two different points is positive? 2. There are two different formulas for midpoint. Is it possible to use the formula for midpoint "on a number line" when you are trying to find the midpoint...

English
Blah,Blah,Blah. Thanks for your help ........... .

English
Leprechauns and fairies from "A midsummers night dream" are very similar to each other. Leprechauns and fairies are both part of the same kingdom. Their part of a fairy kingdom. It is rare that a female leprechaun is born but, If it does happen she becomes a fairy. ...

English
Leprechauns and fairies from "A midsummers night dream" are very similar to each other. Leprechauns and fairies are both part of the same kingdom. Their part of a fairy kingdom. For example If a child is born and their child is a girl she becomes a fairy. It's ...

English
You will need to research a type of mythical creature, such as mermaids, gnomes, leprechauns, goblins, or genies. You will then write an essay comparing the creature that you researched and the fairies in A Midsummer Night's Dream. Leprechauns are very much similar to the...

English
What are some differences in the fairy's in "A Midsummer's Night Dream" from lepruchuans?

Chemistry
How'd you get 15 moles?

Chemistry
I'm dumb. I'm sorry I still don't understand.

Of Mice and Men ASAP
Hi My summer reading list is due on monday and i'm running out of time to finish this book (it has 6 chapters) I don't have the book with me anymore sadly because it wasn't my book. I wanna know if you can tell me the conflict in each chapter please please please ...

I was gonna do a summary for each chapter but it's not asking me that it's asking for a plot

I'm doing my summer reading list and I need help these are the instructions "Have notes for each chapter (or story or part of the novel—depending on how the novel is arranged) with the following points: main characters, conflict, and plot. This will help you with...

Geometry, Help
Compare and Contrast Describe the difference between saying that two segments are congruent and saying that two segments have equal length. When would you use each phrase?

Geometry
1.Explain why we use the formula AB = |a - b| to find the distance of a segment. Include why you need to subtract and why you need to take the absolute value. The formula for finding vector AB is AB = b - a where a and b are the position vectors OA and OB respectively then the...

English; Help/Check.
Thanks. Is their anyway you could give me more Ideas on adding more to this? It needs to be 3 paragraphs

English; Help/Check.
Okay.. I believe I fixed it now. Leprechauns and Fairy's; Leprechauns are fairy-like mischievous creatures in Irish folklore. They are in a form of a old man. Leprechauns have been reported to be no bigger then a small child or no bigger then a finger. If they are spotted ...

English; Help/Check.
Leprechauns and Fairy's; Leprechauns are fairy-like mischievous creatures in Irish folklore. They are in a form of a old man. Leprechauns have been reported to be no bigger then a small child or no bigger then a finger. If they are spotted by human they are granted three ...

English; Help/Check.
Leprechauns and Fairy's; Leprechauns are fairy-like mischievous creatures in Irish folklore. They are in a form of a old man. Leprechauns have been reported to be no bigger then a small child or no bigger then a finger. If they are spotted by human they are granted three ...

English
How are leprecuans different or similar to the fairies in A Midsummer Night's Dream?

Government
8.) TRUE

Government
1 B 2 A 3 A 4 A 5 A 6 A 7 B 8 B 9 B 10 A 11 A 12 A 13 A 14 A 15 B 16 B 17 B It yall turn

Language Arts
Do you know where I can find chapter by chapter view of a book? Is a plot the same as a summary of a short story?

Physics
i got .41 m/s

Math
Find the general expression of the kth nonzero term in the taylor series for f(x)=3/(1+x) (exclude any zero terms in the series when finding this general expression)

Math
Find the general expression of the kth nonzero term in the taylor series for f(x)=3/(1+x) (exclude any zero terms in the series when finding this general expression)

maths
S=1 + 2(1/5) + 3(1/5)^2 + 4(1/5)^3 +5(1/5)^4…...........infinite......... If s=a/b , where a and b are coprime positive integers, what is the value of a+b?

maths
S=1 + 2(1/5) + 3(1/5)^2 + 4(1/5)^3 +5(1/5)^4…...........infinite......... If s=a/b , where a and b are coprime positive integers, what is the value of a+b?

chemistry
Keq = product/ reactant Write the balanced equation for what you are given. 2HCl--->H2 + Cl2 I believe that's how you start off.

Social Studies help needed
Smart One :) was correct!

math

World history; Check:P
How did Louis XVI’s weak leadership contribute to the growing crisis in France? Louis and both his wife didn't seem to care about governing. His wife always gave him poor advice and ended to spend a lot of money gowns, jewels, gambling, and gifts, which lead France ...

calculus
The function f is given by the formula f(x)=6x^3+17x^2+4x+21/x+3 when x<–3 and by the formula f(x)=2x^2–4x+a What value must be chosen for a in order to make this function continuous at -3?

Math
6%

physics
Take velocity = 331m/s.then apply the formula.v'= v m/s+0.61m/s/C.u will get 331+0.61*20=343.then distance = v'.t÷2=343*2.50÷2=428.75 is the answer.

Math
Plot the points on a graph (X,Y). Start at (0,0) and move accordingly. For example, Doug is at (2,1) meaning 2 units to the right and 1 unit up.

Quantum Physics
8a- pi/3,o

chemistry
Molarity = Moles of solute (salt)/Liters of solution (salt water) Once you have moles, convert to grams using the molar mass of the salt. Next time, post a question with numbers! :P

Science
A( I just did it right now )

Chemistry
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4. Balance the net ionic equation, including phases, for this reaction.

omg wow u people are dumb posting answers on the internet !!!!! that is cheating

Chemistry
A B B A B D D B

thanks smile more your the best

Math
The second one is A

Math
Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use the ...

English; Help..
Fallen, by Laurn kate

English; Help..
Persuasive Writing Assignment: Imagine that you are an agent who is interested in publishing new authors. Choose any book you like and present the book to a publisher in New York. You want to be the person responsible for putting the book on the shelf. Any ideas? I need help ...

Math?
Okay. This is the question: If 130.943 g of a liquid occupy a space of 135.0 ml, what is the density of the liquid in g/cm3? And this is my answer: 0.9699481g/ml 481 is repeating

Math?
Wait! I'm a bit confused. Let me try and do the problem and you check it for me please?

Math?
How do you convert "ml" to grams. 1. 135.0ml to grams

Chemistry;HELP
I got D= 2.843081g/cm^3 ^(Repeats)

Chemistry;HELP
How would you do this problem? /: 1. Calculate the density of a material that has a mass of 52.497grams and a volume of 18.5cm^3?

Chem 132
The rate constant for this first-order reaction is 0.650 s–1 at 400 °C. A------> Products How long (in seconds) would it take for the concentration of A to decrease from 0.660 M to 0.350 M?

Physics
W=F.d W=209 * 10 cos 0degree W=2090 joule

ALL subjects..
Oh, alright. Thanks. anyways..

ALL subjects..
Hi!! Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct? Please!! Help..

Cheyenne is right!

Math
Really!! Thank you so much you explained it well

Math
The price of a fan increased by 25% to \$48.75. Find the original price of the fan. This is how I did it. 100/25%=400. 48.75-4.00= 44.25. I'm not sure if I'm solving it the correct way can someone help please

math
Samantha, you are wrong. The answers are, A B C A D B C A B

Okay. Thanks. (:

Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire. The Assyrians were the first to use iron in their weapon works. They used it in spears, swords, shields and armor. They had the most advanced weapons of their ...

World history; Check:P

World history; Check:P
Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire. The Assyrians were the first to use iron in their weapon works. They used it in spears, swords, shields and armor. They had the most advanced weapons of their...

World history; HELP
Can I get some websites? Help? Please. Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire.

World history
Pleas help? In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today?

World history; HELP
Write a opinion paper on the most significant consequences of the Agricultural Revolution. The one about 10,000 years ago. I need help. Some websites stating facts or something?Please and thank you.

Physic
A ball is thrown horizontally from a cliff at a speed of 15 m/s and strikes the ground 45 meters from the base of the cliff. How high was the cliff (rounded to the nearest meter)

Physics
Alice and Bob share a state a|++⟩+b|−−⟩, where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants a|+⟩+b|−⟩, what ...

Physics
Specify the state of each qubit after we applied the circuit. First qubit: Second qubit:

Physics
Which of the following pairs of quantum gates commute? Select all that apply. (Gates A and B commute if and only if for any input applying A and then B gives the same results as applying B and then A. This is the same as saying that the unitary transformations commute.)

Physics
Suppose we have a qubit in the state |ψ⟩. We know that if we measure it in the standard basis, the probability of getting a 0 is 79. Now, if we instead first apply a Hadamard gate and then measure the resulting qubit H|ψ⟩ in the sign basis, what is the ...

Physics
5. What is ZX applied to |0⟩? 6. What is ZX applied to H|0⟩?

Physics
Suppose we have a one-qubit unitary U that maps |0⟩ to 12|0⟩+3√i2|1⟩ and |+⟩ to 1−3√i22√|0⟩+3√i−122√|1⟩. What is U? Explicitly indicate multiplication with a * symbol. For instance, you should ...

Physics
Suppose we have a one-qubit unitary U that maps |0⟩ to 13|0⟩+2−2i3|1⟩ and |1⟩ to 2+2i3|0⟩−13|1⟩. What is U? Explicitly indicate multiplication with a * symbol. For instance, you should write 3*i+2 instead of 3i+2.

Physics
Let U=(13i3−i). What is U†? Explicitly indicate multiplication with a * symbol. For instance, you should write 3*i+2 instead of 3i+2.

Geometry
What is used to show that an assumption is false? A. inductive reasoning B. counter example C. pattern D. conjecture ANswer: A

World history; Check:P
Can you help me? Show me some websites? Yes, and it was the 10,000 years agricultural revolution. I had some facts I guess from the other agricultural.

World history; Check:P
Write a opinion paper on the most significant consequences of the Agricultural Revolution. This is about 10,000 yearsago. One of the greatest consequence was that the population increased. The increase of population lead to the need of more clothing. People who were farmers ...

Algebra
Yeah does anyone have the answers to the whole test

Physics
What is the inner product of 13√|0⟩+2√3√|1⟩ and |+⟩? Rewrite 13√|0⟩+2√3√|1⟩ in the sign basis.

Physics
A two-qubit system was originally in the state 34|00⟩−5√4|01⟩+14|10⟩−14|11⟩, and then we measured the first qubit to be 0. Now, if we measure the second qubit in the standard basis, what is the probability that the outcome is 0? ...

Physics
Suppose we have two qubits in the state α|00⟩+β|11⟩. (a) If we measure the first qubit in the sign basis, what is the probability of seeing a +? (b) What is the resulting state of the second qubit in that case? Use a and b to denote α and β ...

Physics
Now note that the following becomes good approximations as θ→0: sinθ≈θ sin2(π4−θ)≈12−c⋅θ (where c is some constant.) Use these approximations to estimate the probability of success of the two measurements as x&#...

Physics
We have a qubit in the state |ϕ⟩=3√2|0⟩+12|1⟩, which we want to measure in the {cosθ|0⟩+sinθ|1⟩,sinθ|0⟩−cosθ|1⟩} basis. In order for the two possible outcomes to be equiprobable, what should ...

Physics
Suppose we have two qubits in the state α|00⟩+β|11⟩. (a) If we measure the first qubit in the sign basis, what is the probability of seeing a +? (b) What is the resulting state of the second qubit in that case? Use a and b to denote α and β ...

Physics
A two-qubit system was originally in the state 34|00⟩−5√4|01⟩+14|10⟩−14|11⟩, and then we measured the first qubit to be 0. Now, if we measure the second qubit in the standard basis, what is the probability that the outcome is 0?

Physics
Factor 122√|00⟩−122√|01⟩+3√22√|10⟩−3√22√|11⟩ into (a|0⟩+b|1⟩)(c|0⟩+d|1⟩), where |a|2+|b|2=1 and |c|2+|d|2=1. What is the value of |a|?

Physics
If the first qubit is in the state 13√|0⟩+2√3√|1⟩ and the second qubit is in the state 2√3√|0⟩+13√|1⟩, what is the state of the composite system?

Physics
We have a qubit in the state |ϕ⟩=3√2|0⟩+12|1⟩, which we want to measure in the {cosθ|0⟩+sinθ|1⟩,sinθ|0⟩−cosθ|1⟩} basis. In order for the two possible outcomes to be equiprobable, what should ...

Physics
Rewrite 13√|0⟩+2√3√|1⟩ in the sign basis.