Saturday

April 19, 2014

April 19, 2014

Total # Posts: 1,668

**trig**

I need to know how to graph y = sin 2(x - Pi/3) I need to have: Amplitude Period Phase Shift 5 critical points Help would be appreciated. Thanks.

**Chemistry**

The age of a rock can be estimated by measuring the amount of 40Ar trapped inside. The calculation is based on the fact that 40K decays to 40Ar by a first-order process. It also assumes that none of the 40Ar produced by the reaction has escaped from the rock since it was forme...

**trigonometry**

It all makes sense now!!!! Thanks, haha.

**trigonometry**

But how do I know where cosine (or tangent and sine) are positive? I don't understand. Thanks for the help, btw.

**trigonometry**

Sorry, my mistake. It is arccos, not arcsin. Also, the negative in the book is exactly in the middle. The book just says evaluate the expression.

**trigonometry**

Evaluate the expression. arcsin (-1/2) Is there a rule I am missing? How do I know which quadrant the triangle belongs in? That is the only thing that is stopping me. Much help appreciated.

**Algebra**

y = (x - 4)^2-2

**Calculus**

Find the equation of the tangent line to the curve 2e^(xy) = x + y at (0,2)

**history**

a unified germany was built around the nucleus of the kingdom of?

**trig**

I do not understand these problems. :S I'd really appreciate the help. Use trigonometric identities to transform the left side of the equation into the right side. cot O sin O = cos O sin^2 O - cos^2O = 2sin^2 O -1 (tan O + cot O)/tan O = csc^2 O

**5th grade**

what can i write as an essay to convinse my teacher not to give me homework next week

**english (Gulliver's Travel)**

Or was it the allusion that influenced the readers?

**english (Gulliver's Travel)**

I know Gulliver dislikes his governement at home, but what traditions does he what to modify in the government? Also, how was he able to influence the reader? What techniques does the author uses to influence the reader? - Was it the satire?

**Chemistry-PLEASE HELP!!!**

Give a full balanced nuclear equation fro the synthesis of xenon-133. A full balanced nuclear equation includes α particles, β particles, positrons and gamma rays.

**To: GuruBlue Please Read**

So would the answer be: Benvolio?

**Romeo and Juliet Quotation Help**

I need help to know who said this quote. I don't have a textbook of the play, and I tried to search for it on google but it didn't help any. This is the quote "... most are busiest when they are most alone." Please help thanks.

**Romeo and Juliet Quick Question**

I'm doing a paper on act 5 of romeo and juliet does Capulet think Romeo killed Juliet

**Romeo and Juliet HELP**

What does I sell thee poison. Thou hast sold me none mean? I'm reading act 5 and I'm trying to understand what there saying. I tried to look it up on google but couldn't find anything. Please someone help me thanks.

**math**

what is the slope and y-intercept of the line 3x-2y=12?

**O-Chem**

What is EDTA exactly and why do we use it in lab setting? I researched but having a little hard time understanding the concept. thanks

**Environmental Science**

1. How are carbon emissions related to the carbon that accumulates in the atmosphere? 2.How is carbon absorption related to the carbon that accumulates in the atmosphere? 3.What happens to carbon in the atmosphere when carbon emissions are equal to carbon absorption? 4.What mu...

**8th grade**

sing old mcdonald and push it over

**English passage ques**

thanks yes, that was what I was leaning towards but because nothing in a sounded wrong, I got confused

**English passage ques**

I have read this paragraph several times and cannot decide between two interpretations. Mr. Tulliver is the father who is afraid his daughter will become to upper class to be married off well. The question asks about the relationship between Maggie (daughter) and father (Mr. t...

**Debating**

I need to provide arguments that mining is not horrible for the environment. I'm trying to look for stories that explain positive effects of mining, or how they help the environment (even if indirectly or in a small way). This is just very hard to find. Thank you.

**11th grade**

What are the formal and functional regions of seattle washington???

**Math**

A translation has this rule:(x-5,y). Fill in the answers This translation is (how many) Units (in what direction) Answer:

**History**

If you are/were a teacher, or based on your experiences as a student, do you think its strange for a teacher to take off points on an essay for the word "very?" I see how it's overused, but it helps to differentiate the degree of something.

**Math**

total amount of rope:30x5=150 150 ÷3=50 50 YARDS OF ROPE is the answer

**Science**

How does the earth's tilt affects how directly light reaches different parts of the earth?

**math**

My homework is annoying every night. Well good luck to you! Thanks for the help!

**math**

Nice! So you do this for fun? Or do these people pay you?

**math**

Thanks! I thought I was correct to begin with! Are you a math teacher?

**math**

Thanks but someone else told me that the equation is suppose to be transferred to function form which is y = 4x - 7, and the possible x and y pairs would be (-1, -11) (0,-7) (1,-3. Which method is correct, or does the line have infinate solutions? Thanks!

**math ordered pairs**

Are these possible solutions? (2,1) (3,5) and (4,9)? Thanks for the help!

**math**

Three ordered pairs for 4x - y = 7

**Physics**

do the sum of the forces= mass x acceleration formula. so mgsin30-friction=ma. that means that mgsin30- mew(Normal)=ma mgsintheta-mew(mg)=ma the masses cancel out and the only variable youre left with is the coeffecient of friction

**calculus**

Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high. You may assume that the earth's mass is 5.98*10^24 kg and is concentrated at its center. Take the radius of the earth to be 6.37*10^6 m and ...

**calculus**

Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high. You may assume that the earth's mass is 5.98*10^24 kg and is concentrated at its center. Take the radius of the earth to be 6.37*10^6 m and ...

**calculus**

Find the numbers b such that the average value of f(x) on the interval [0, b] is equal to 9. f(x)=7+10x-3x^2

**calculus**

Use integrals to prove that the volume of a sphere of radius R is equal to (4/3)(pi)R^3

**3rd grade**

Would you capitalize (golden eagles) in this sentence? Do you recall the golden eagles in the forest?

**math**

He has somewhere between 180 and 198. Here's why. He has 3 albums. You know one album has 54. You know the other album as 72. 54+72 = 126 Now, we also know he has one more albume. The album has anywhere between 54 cards and 72 cards in it. 126 + 54 = 180 126 + 72 = 198 The...

**Chemistry repost**

A student determined that ethanol was the best solvent to use for a recrystallization based on small scale trials. When the recrystallization was carried out on a larger scale, no crystals were obtained on cooling the hot solution. Why? and how would you overcome this problem???

**physics**

This is a sum of torque problem. T(left) = F(board)*Distance from left + F(person)*Distance left + F(right)*Distance from left = 0 T(right) = F(board)*dist from right + F(person)*dist from right + F(left)*distance from right. In reality, we are summing clockwise torques with c...

**CHEM URGENT!!**

If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.63 cm in length be?

**math**

The tread depth of the tires on your family's new car is 3/8 inch. you predict that, as a result of driving the car, the change in tire tread depth will be about -3/64 inch per year. A. write a variable expression for the tire tread depth after y years of driving. Use your...

**9th grade**

A buoyant girl ant

**collage algebra 1**

y=-2x+b Plug and chug 3=-2(4) 3=-8 -8 both sides -5=b equation is y=-2x-5

**DR BOB???**

x+3=4x?

**Math**

Dude thats easy mat 44 ? to -56 +56 will get you to zero and then you add 44. That's what??? 56 +44? Whats the answer?

**work problem math**

15 seats not sold. 1 % of walk in tickets. The theatre made $3187.5

**math riddle**

But hey tip..you should try solving the problems in order to get the answers so that you can solve the riddle. IF you go to shcool with just the riddle solved, you will not get full or perhaps any credit for your work, so better off trying to get help for the actual equations ...

**math riddle**

a quacker? maybe

**math word problem**

$705 dollars for the walk in tickets $528.75

**ALGBERA**

[SQRT(2x + 2)] - [SQRT(x - 3)] = 2

**MRS SUE I NEED YOUR HELP**

Okay I get x+3=4x ?

**MRS SUE I NEED YOUR HELP**

Cna you help me set it up please?

**MRS SUE I NEED YOUR HELP**

[SQRT(x + 3)] = 2[SQRT(x)]

**math**

Well 57/7 is??? 8.1 If you round it. IM just doing the math as far as what you wer doing up there

**math**

Hey I will most likely by able to help you with this but first 64-7 is not 63

**EQUATIONS**

CAn you solve for y?

**EQUATIONS**

9y2 + 16=0

**3rd grade**

No I probbally wouldnt. at most your probably have 25-30 students in your classrooms. SO the most is about 60 shows, 2 on each foot.. So maybe 100 would be a more reasonable number. Hope this helps.

**Math**

x+5>1 You subtract 1 from both sides

**ALEgBRA 2**

Give the domain (that is, possible values of x): 1. y= 2[SQRT(x - 1)] 2. y=-[SQRT(4 - 3x)] + 6

**quote**

Well it's inevitable that we will feel moments of sadness throughout our lives. However, those thoughts can in a sense fly through one ear and then out the other. However, those thoughts nesting in our hair can represent those thoughts staying permanetly, and over this we ...

**ALGEBRA**

Ok thank you for your help. Can you help me solve this equation? 9y2 + 16=0

**ALGEBRA**

Thank you What would be the answer C?

**5th Grade-Fractions**

a pizza is divided into 5 pieces...4 of the pieces are equal--the other piece is one/half the size of the other. what fraction of the pizza is the smallest piece?

**Chemistry**

Is Magnesium Oxide reactive? If it is, can you please explain how reactive it is? Thanks so much!

**Literature**

What is the inciting action of The Scarlet Letter?

**economics**

What is the rule of 30 and who came up with it? I can't find the answer to this question and was wondering if anyone knew what is was.

**physics**

A 1 kg object starts 3 meters from the ground on a 24 degree incline with a friction coefficient of 0.12. When it hits the ground, it collides and sticks to a 8 kg object. The coefficient friction on the horizontal surface is 0.24 How far do the objects travel away from the in...

**physics**

A 1 kg object starts 3 meters from the ground on a 24 degree incline with a friction coefficient of 0.12. When it hits the ground, it collides and sticks to a 8 kg object. The coefficient friction on the horizontal surface is 0.24 How far do the objects travel away from the in...

**5th grade math**

mule has 7 and donkey has 5

**Accounting final**

I have to decide whether these payments go under the land account or building account? I have a feeling neither of them go under the accounts, but just want to make sure. Fire insurance premium payment Asset write-up to proper value Thanks!

**11th grade:AP Biology**

This is concerning Ecology. Question: You turn on a light and observe!@#$%^&roaches scurrying to dark hiding places. What have you observed? A. taxis B. learned behavior C. migration D. visual communication E. operant conditioning I have already crossed out migration; however,...

**calculus**

I think its 2-x^1, but I can't be sure as I learned it in precalculus.

**History**

The Battle of Trenton shows the Contintal troops demonstrating trustworthiness. what did the do?

**calculus**

Suppose the following about a certain object: I. The object's altitude is a function of time, represented by the function A(x) where here x is time. II. The temperature of the object is a function of its velocity, represented by the function T(x), where here x is the objec...

**unscramble words**

can you help unscramble these; DAUATSLFRI DDCNEEODVNIROFA KEAILBTSD they have a thanksgiving theme

**Chemistry**

is Lead II Dichromate soluable?

**math**

who do I work this question. The length of a rectangular swimming pool is 2x - 1 meters, and the width is x + 2 meters. Write a polynomial A(x) that represents the area. Find A(5).

**social studies**

why would a girl want to work at the lowell mills

**college**

why would a woman want to work in the lowell mills

**chemistry**

Calculate the heat of formation of SiO4(s), given that the heats of formation of SiO2(s), -910.90 KJ/mol; H2O(l), -285.8 KJ/mol; HF (g), -271.1 KJ/mol. I know the heat of formation is products minus reactants but how do i do this when no reaction is given please help

**chemistry**

Calculate the heat of formation of SiO4(s), given that the heats of formation of SiO2(s), -910.90 KJ/mol; H2O(l), -285.8 KJ/mol; HF (g), -271.1 KJ/mol.

**chemistry**

What is the theoretical yield in grams of the precipitate starting with 1.250 moles of iron ions (charge is +3) and 60.00 grams of hydroxide ions?

**algerba**

can 2 pairs of numbers have the same greatest common demonitator and least common demonitator?

**physics**

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate about a vertical axis. Then the floor on which the passengers are standing suddenly drops away! ...

**chemistry**

Bleh, I meant Krypton, not Radon.

**chemistry**

149 Ne/73 unknown = sqrt(MM unknown/20.183) Square root the denominator 2.0411 = sqrt(MM unknown)/ 4.4925 multiply the denominator to isolate the unknown 2.0411 x 4.4925 = sqrt(MM unknown) 9.16972 = sqrt(MM) Square both sides, 84.083 = unknown molar mass, closest element is th...

**History**

Is sectionalism a social issue or a political issue?

**english**

premodern style was dramatic where modern sticks more to facts, and morals presented itself more in premodern reporting where in modern the more serious side came out.

**english**

What are the differences between premodern and modern reporting styles. A headline and the first two or three sentences of the news article that would carry the story of that event in premodern style A headline and the first two or three sentences of the news article that woul...

**college Math Word Problem**

The mass of Uranus is about 8.7x10^22 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Uranus is the mass of the sun? Give your answer in scientific notation.

**Poetry**

I need to write a one page response to the following poem, answering "How persuasive is this poem? How powerful is its argument? Account for its effect." I don't know where to begin because I don't understand the question. Any suggestions? Promises Like Pie-C...

**science**

what effect could receding have on sea level?

**Statistics**

Using the standard normal distribution tables, the area under the standard normal curve corresponding to Z > –2.62 is a. 0.0044. b. 0.0047. c. 0.9953. d. 0.9956. The answer is D How do i find the answer on the Table C or just in general?

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