Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 362

**statistics**

Suppose a study is done in which several random samples of people from a population are taken and polled on the number of hours per night they sleep. It is determined that the sample proportion for those who sleep at least 8 hours a night is 36%, and the 95% confidence interva...

**math**

Frank was a jacket that cost $60 ESA $43 what is the fraction of the amount that he that he needs to saved

**Albebra**

2 dice are rolled.What is the probability that neither both numbers are 2's or their sum is less than 6?

**u.s. history**

What was the prevailing economic challenge the United States faced at the start of World War II

**English**

Thank you very much. I still have these sentences I'm doubtful about. My doubt is whether I should use the present perfect or the simple past (considering that it is the end of the school year) 1) Exercises for literary text analyses aimed at developing lexicon have been p...

**English**

Can someone check the grammar in the following sentences? Thank you in advance. 1) The nuclear power station can give our town a lot of energy and jobs to people. 2) We won't be able to use the farmland near the power station because it will be polluted with chemicals. We ...

**C++**

The variables arr1 and arr2 have been declared as pointers to integers . An array of 10 elements has been allocated, its pointer assigned to arr1, and the elements initialized to some values . Allocate an array of 20 elements , assign its pointer to arr2, copy the 10 elements ...

**Math**

kim has 4/10 of a dollar. Carla has 40/100 of a dollar. Who has more money? Explain Colin has 3 quarters. He says he has less than 8/10 of a dollar. is he correct? Explain.

**English**

Can someone help me with these sentences? Which of them are grammatically correct? Thank you very much in advance. 1) They are not able to dance well. 2) They can't dance well 3) Are you able to play the piano? 4) Can you play the piano? 5) Were you able to find the book y...

**English**

Can someone explain to me the difference between angry about and angry for (when a verb follows)? I think "about" is used in sentences like: he is angry about being in jail (Would "for" be possible in this sentence?) he is angry with me for being rude to hi...

**English**

Can someone check if the questions and the sentences are grammatical? Thank you. 1)Can you fly with a Bergonian passport? 2) Why might visitors not be welcome on Seeland? 3) What are the citizens of the Aerican Empire like? 4) What happened to Danny when he accepted his friend...

**English**

Yes, I wrote the sentences incorrectly: Thank you He was seen to watch the TV He is still dependent on ... but independent of.... I was so angry WITH him FOR behaving like that in front of everyone. (about behaving would be a mistake?) The teacher was annoyed WITH me FOR forge...

**English**

Can someone check if the following prepositions/verbs are correct? Thanks 1) I couldn’t help CRYING 2) It’s no use EXPLAINING it to him; he won’t understand. 3) He was seen TO the watch. 4) I can’t afford TO BUY it. 5) Norma is anxious ABOUT making the pres...

**eNGLISH**

Can you please tell me if the sentences are grammatically correct? e.g. "facing death" or the ability to face death Hamlet doubtful about the existence of an afterlife.

**English**

Can someone check these sentences, please? I thank you in advance. 1) Lady Macbeth "becomes sleepwalking" 2) Cowardice is the ability to bear the sorrows of our life and to stay alive, while courage is facing death by committing suicide 3) We can't be sure about ...

**math**

square root of [2+(square root of 1+k)]=square root of 5. Solve for k

**math**

square root of 2+(square root of 1+k)equals the square root of 5. Solve for k

**algebra**

square route of 2 plus the square route of 1 plus k = 2.24

**English**

Can someone please help me check the grammar in the following sentences? 1) I would like to inform people about the danger (after effects?) of having a nuclear power station near our town 2) I hope you will listen to our advice. 3) Animal and plant species will be in danger.

**SAT prep help**

If x^4=10, what it x^6?

**English**

Can someone of you check these sentences, please? Thank you in advance. 1Complete the sentences with the correct form of should, must or have to. 1You _________ be worried. This test is very easy. (don’t have) 2All the students _________arrive on time. (must) 3In my opini...

**English**

Can someone check if the following questions are grammatically correct? Thank you. 1)Please Henry the VIII rule by focusing on the following: -Why he broke ties with the church -What the Act of Supremacy established -What political and social changes the reformation brought ab...

**English**

Can someone tell me what's the British for the words "common trash barrels", "sorted trash", "regular kitchen" trash or food/garden waste? Thank you I'm quite environmentally friendly. I have three containers at home into which to sort my ...

**English**

Can someone help me with these sentences, please? Thank you very much in advance. I use the Internet to conduct school research, use translation programmes, use an online homework agency, do online shopping, play games, chat with my friends, send private instant messages, log ...

**English**

Can someone check these sentences, please? I need to prepare them for Tomorrow. 1) Air pollution is mainly caused by gases from factories and car exhaust fumes. It can cause acid rain, breathing problems and it can increase the risk of cancer. 2)The destruction of the ozone la...

**English**

Just one more thing. Which of the following sentences are grammatical? Thank you very much for your cooperation. 1.I spent most of my holiday at home. 2. I spent the greatest part of my holiday at home. 3. I mainly/mostly stayed at home during my holiday. 4.For the most part, ...

**English**

Are both skiing Holiday and ski Holiday possible? Thank you.

**EARTH SCIENCE**

the answer to 1 is not D!

**English**

Can you tell me if the expression the most part of my holiday is a mistake? I used it once instead of the greatest part of.. Thank you.

**math**

if 3a+3(b+1)=c, what is b+1 in terms of a and c?

**English**

I left out these last sentences. Thank you. 1) My parents like my clothes style very much and not They like so much my clothes style. 2) My favourite style is the urban look because it is comfortable enough for school. 3) Each of you will have to join one of the four groups de...

**English**

Can you please check these sentences I'm doubtful about? Thank you very much. 1) My parents like my clothing style because they think that wearing practical clothes is the most important thing/most important is to wear practical clothes/ 2) I was given these trousers for m...

**English**

Can you please check these sentences? Thank you very much in advance and Merry Christmas! 1) The Key-Note begins with an extended description of Coketown, the fictional setting for the novel, which is based on Preston, now part of greater Manchester, where Dickens went in 1953...

**English**

I still have a few doubts. Thank you very much. 1) When I go to a party, I generally wear clothes which are smarter than the ones I wear for school. 2) I want to be original and on fashion (is it possible?) 3) What do you think of/about this coat? Are both "about " a...

**English**

I urgently need your help with a few sentences. Can you tell me which alternatives are possible? 1) What do you think of/about these shoes? 2) AlL the ones I have been shown are uncool 3) all of the ones I have been shown... 4) He was given two weeks by the judge in which to p...

**Math**

A football arena measures 100ft. wide by 200ft long.The games are played on a similar rectangular field that's 150ft. long. What is the width of the football field? What is the perimeter of the football field?

**Math**

A faulty odometer (mile indicator) on a car registers 6 miles for every 5 miles travelled. A t the start of a journey it reads 500 miles and at the end of the journey it read 560 miles. What distance has actually been covered?

**Math**

The Japanese Nozomi averages 162 miles per hour. About how many miles would it take the Nozomi to travel 119 miles? Thanks, (If you could please show me how to do it)

**Physics Classical Mechanics**

Double star system answer - 9.859*10^17 seconds; keep on getting bungee jump wrong; I might be using the wrong equation. setting the equations to: 1/2*k*x^2=m*g*h; k = 2*m*g*h/x^2

**physics**

Use the answer from a (R) to calculate the escape velocity

**physics**

Geosynchronous Orbit Equation: R^3=(T^2)*(G)*(M_p)/(4)*(pi^2) Time is in seconds T=1.6 earth days=38.4hrs=13824seconds or 1.38*10^4 seconds this the equation i I used to get my answer. b)V-escape=sqrt(2)*(m_planet)*G/R to do b you need a to solve; do not forget to take cubed r...

**physics**

a. 1.29*10^8; b. 8.2547 km/sec

**physics**

8.01 homework. I have difficulty with question no. 2. all my equations do not work-Rough Surfaces. Also, the period of oscillation got part a the rest is confusing and my answers do not check out. I thought this was a very difficult assignment to say the least. So far, I am ba...

**chemistry**

1129 nm

**Biology**

Father has red/green color blindness and is a hemophiliac. Mother is normal. Have two female children (Both are probably carriers). One female offspring marries a normal male. The question is what is the probability that their son is both color blind and hemophiliac? Originall...

**Math**

Lori's car gets about 28 miles per gallon of gas. About how many gallons of gas does Lori's car use for each mile driven? How do you know?

**Chemistry**

How many grams of sodium sulphate (mol. wt. 142) are required to make 1.2 liters of 0.5N solution

**math**

Dents and Dings Auto Body buys paint with a list price of $29,000. If the supplier extends trade discounts of 30/35/20, what is the trade discount amount?

**science**

How much hot air in SCFM is needed to heat up water from 60F to boiling point. The hot air is 350F.

**physics**

A fan blade is rotating with a constant angular acceleration of +8.4 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity?

**physics**

A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. By pulling upward on the rope with a force the man can raise the platform and himself. The total mass of the man plus the platform is 94.7 kg. What pulling force should the man app...

**math**

i dont know it please teach me

**math**

i dont know it

**Biology**

Explain how life on earth is dependent on both polarity of covalent chemical bonds and hydrogen bonding.

**physics**

If the same shoe were dropped from a height of 40m, how many seconds would it take it to hit the floor?

**physics**

what will the volume of a gas at 309K if its volume at 215K is 3.42 L? Assume the pressure is constant

**Life Orientation**

Explain how drug addiction is a human factor that may cause ill health,accidents,crises or disaster

**spanish**

Thank you Ms. Sue!

**spanish**

My answer: Ellos irán a la playa

**spanish**

12. Tell what the following people will do tomorrow by changing the verb in the following statement to the future tense. Write the new verb in the blank. Ellos van a la playa.

**Statistics**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...

**Statistics**

C(5,1)*(1/6)*(3/6)^4=0.05208333

**english first additional language**

yes

**Physics**

Four students measure the mass of an object, each using a different scale. They record their results as follows: Student A B C D Mass (g)49.06 49 50 49.1 E 49.061 Which student used the most precise scale?

**Math**

The range of a set of data is 15, and the interquartile range of the same set is 12. Which of the following statements is true about the set? A) The two ranges are close together, so there is probably an outlier in this set B) The two ranges are close together, so there are pr...

**biochem**

I'm stuck on this question, not sure where to start. can you show detail and explain so that it helps me to understand it. help please, thanks. The value of delta G for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4kj/mol. If the concentration of ...

**math**

Add 3 2/5 and 7 1/3

**physics**

A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?

**Math**

On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing $5.76 in postage?

**social studies**

2013 social studies fair project: A turn in history Walt Disney Pre-Draft Please

**Calc 1**

integrate from 0 to pi/4 (sec^2x)/((1+7tanx)^2)^1/3 integrate form pi^2/36 to pi^2/4 (cos(x^1/2))/(xsin(x^1/2))^1/2 integrate from 0 to pi/3 (tanx)/(2secx)^1/2

**Calc 1**

integrate from 0 to pi/2 (3sinxcosx)/(1+3sin^2x)^1/2

**SAT Essay**

(Continued from part 1) It didn,t refer back to anything. You also need to explain WHAT CHANGES TOOK PLACE??? Here is another sentence that needs re working "Another example that portrays this idea was can be seen in "The Scarlet Letter" by Nathaniel Hawthorne.....

**SAT Essay**

YOUR POINTS ARE FINE BUT THE ESSAY CAN DO WITH MORE ORGANIZATION;IT IS TOO "CHOPPY" BECAUSE YOU BOUNCE AROUND FROM ONE THING TO ANOTHER AND THEN BACK AND FORTH.iT IS DIFFICULT TO FOLLOW YOUR THOUGHTS. I suggest you rearrange the paragraphs by putting all the info of ...

**English**

your answers are correct but should Luis sentence be his dog? You have "hiss doing"

**MATH 5TH GRADE**

HOW MANY TIMES MORE IS 2000 THAN 20?

**MATH **

HOW MANY TIMES LESS IS 400 THAN 4 MILLION???

**Math**

the answer is 3!! DIVIDE 24 BY 8!

**English**

There are many ways to describe weather. If it is raining very hard, the idiom "It's raining cats and dogs is used. This is from ancient times when cats and dogs were on thatched roofs and would fall when the roof would collapse in heavy rain. Cats would get up and w...

**math**

how many times less is 400 than 4 million; explain

**Accounting**

The company’s fiscal year ends on December 31. Using the following information, compute depreciation for this machine for each of the 4 years using each of the following methods: Straight-line method Sum-of-years method Double-declining method Units-of-production Year Ma...

**Accounting**

ABC company purchased machine for $300,000 that had a useful life of 5 years, with a salvage value of $50,000 at the end its life. Depreciation was calculated over 2 years on straight-line basis. In 20X2, it determined that the total life should be 10 years with the salvage va...

**Chemistry**

Because we need to Cancel the mL and keep kj our main unit and the heat is released as a form of energy which is measured in Kj so basically u are multiplying these 2 numbers just for the sake of getting a pure q(calorimeter) in its energy form i.e Kj because ML is not an ener...

**math hw**

286 + 93

**math**

261 miles in 29 minutes

**Science**

Noodles

**physics**

Bob is pushing a box across the floor at a constant speed of 1.5 m/s, applying a horizontal force whose magnitude is 75 N. Alice is pushing an identical box across the floor at a constant speed of 3 m/s, applying a horizontal force. (a) What is the magnitude of the force that ...

**algebra**

mike is a sales man at a large home electrocis store. he receives 3% commission on everything he sells. one day he sold $6500.00 worth of goods. how much commission did he make that day

**math**

a company has two job opening and has received a total of 50 applications. what is the chance that an applicant will get hired?

**math**

two coins are tossed list all the possible outcomes what is the probability that both of the coins land heads-up?

**math**

Suppose that $20000 is invested at 7% interest compounded annually. Find that amount of money in the account after 1 year? need it broken down in algebra

**math**

Given the argument and its Euler diagram, determine the syllogism is valid or invalid. Those who play football. don Football and studying donft mix Those who studt Don is a football player ˆdon does not study

**science**

The solubility of NaCl in water at 100 degrees celsius is 39.1 g/100 g water. Calculate the boiling point of this solution?

**Foreign languages**

Can you please check these sentences, too? Thank you. 1) My friend was very upset because someone had stolen her bag before I saw her. I was waiting for the bus when I heard someone call my name. 2) I got home at half past four and immediately did my homework. We ................

**Religion**

The covenant is described by our torah, "that if you obey all my commandments, then I will be your God and you will be my people. And I will dwell among you"

**math**

4b^7/5t^2 x 25t^4/16b Could someone help me with this?

**Chemistry**

Consider a tire at 35 Celcius filled with 32 psig of O2 instead of N2. Calculate the pressure in the tire at -18 celcius? Thanks!

**Science**

Writeacher, can you please check if the use of scientific English is OK. Thank you. 1) One of the other prominent scientists involved in the promotion of nanotechnology, Richard Smalley, has accused Drexler of ‘scaring our children’ and promulgating a vision of the f...

**Science**

Thank you very much for you invaluable help, Bob. Here is the last part of the same summary. 1) One of the other prominent scientists involved in the promotion of nanotechnology, Richard Smalley, has accused Drexler of ‘scaring our children’ and promulgating a vision...

**Science**

Here are the other sentences on the same theme I urgently need you to check. I hope you can help me. Thank you. 1) The existence of complex molecular structures present in every living system is used by Drexler to show the theoretical possibility of the design and construction...