Tuesday

February 9, 2016
**science**

Some say that the hot air balloons with which the Montgolfier brothers performed their first flight had a volume of 1700 cubic metres and could lift 780 kilograms (that includes the balloon, basket and payload). Assume that the balloon took off on a day when the sea level ...
*Wednesday, July 15, 2015 by sakthi*

**collage math**

A total of $13,000 is invested in two accounts. One of the two accounts pays 7% per year, and the other account pays 13% per year. If the total interest paid in the first year is $1,390, how much was invested in each account? account paying 7% $ account paying 13% $
*Tuesday, July 14, 2015 by yg*

**Maths**

X, Y and Z in that order throws a tetrahedral die the first throws a 4 wins. The game continues indefinitely until someone wins. Find the probability that X wins, Y wins and Z wins.
*Tuesday, July 14, 2015 by Iddi Yakubu Jekob*

**Quantitative method probability**

X, Y and Z in that order throws a tetrahedral die the first throws a 4 wins. The game continues indefinitely until someone wins. Find the probability that X wins, Y wins and Z wins.
*Tuesday, July 14, 2015 by Iddi Yakubu Jekob*

**Math**

You have three toonies and two loonies in your pocket. You pull one coin out and then pull out another (without replacing the first) 1) show the total of all the probabilities is 1 2) show using combinations that part 1) is correct
*Tuesday, July 14, 2015 by Peter*

**English**

3. How can yo make students focused on your teaching in calss? - I think motivation is very important, so I will motivate the students first. I can make them imagine they study at a university. I can make them imagine that they live a healthy and happy life in the future ...
*Monday, July 13, 2015 by rfvv*

**Spanish**

I was hoping that I could get some to look my essay and tell me the proper tenses of the verbs. In the first paragraph the imperfect tense of the verb and in the second paragraph the need to be preterit tense. If you could help that would be great. Cuando era un niño ...
*Monday, July 13, 2015 by Caleb *

**English**

1. There are some naughty students in class. So you need to discipline them. What will you do if one student makes noisy during the class? - First, I will tell him to be quiet softly. If he continues making noise, I will make him stand at the back. If he doesn't listen to ...
*Sunday, July 12, 2015 by rfvv*

**math**

If n is a positive interger, n! represents the product of the first n positive integers. For example, 4! = 4x3x2x1. What is the value of (x-1)(x-2)*...*(x-98)(x-99) when x=50?
*Sunday, July 12, 2015 by roman*

**Criminal Justice/Terrorism**

You are a first responder to a suspected terrorist incident. As you arrive, a sniper shoots two firefighters. You then see a suspicious-looking man, with Middle Eastern features, leaving the scene. Later, while helping victims, you find a spent rifle shell casing on the ground...
*Sunday, July 12, 2015 by Pat*

**GREATER TOMMOROW**

THE SUM OF THE FIRST TWO TERM OF A GP IS 6 AND THE SUM OF THE 5TH AND 8TH TERM IS 288. SOLVE
*Sunday, July 12, 2015 by DARE*

**Criminal Justice/Terrorism**

Medical decontamination is far less common than technical decontamination because it: A. only involves the process of cleaning injured or exposed individuals. B. applies only to medical personnel and first responders. C. is used only for decontamination of patients exposed to ...
*Sunday, July 12, 2015 by Pat*

**Math**

A boy throws a ball with a horizontal speed of 2.5 m/s at a height of 0.8 m above the ground. The Coefficient Of Restitution between ball and ground is 80%. • Calculate the x− and y−components of the ball’s velocity, immediately after its first bounce. ...
*Sunday, July 12, 2015 by David*

**science**

with the aid of a test cross, analyze the human situation where albinism a) is recessive to normal coloring (A) and explain how two parents with normal coloring could produce a child who is an albino.
*Saturday, July 11, 2015 by Assatu*

**MTH 156**

a function machine accepts inputs as ordered pairs. the components of the ordered pairs are natural number and the first component is the length of a rectangle and the second component is the width. The given machine computes the perimeter (the distance around the rectangle). ...
*Friday, July 10, 2015 by Bella*

**Math (Finite)**

An election between two candidates is held in two districts. The first district, which has 60% of the voters, votes 40% for candidate 1 and 60% for candidate 2. The second district, with 40% of the voters, votes 60% for candidate 1 and 40% for candidate 2. Who wins?
*Thursday, July 9, 2015 by Stephanie *

**English**

Doing a book review assignment for Obasan by Joy Kogawa. It cannot be a typical summary , must be more essay like and have a thesis. I plan on discussing first and foremost a general quick plot summary emphasizing the important and prominent scenes of the book, which will fuel...
*Thursday, July 9, 2015 by Beth*

**Science**

The combustion of methane in a laboratory burner is represented by the following equation: CH4 + 2 O2 > CO2 + 2 H2O Given the following three thermochemical equations: C + H2 > CH4 H=-74.87kJ C + O2 > CO2 H= -393.5 2 H2 + O2 > 2 H2O H=-571.6 a) Determine the molar ...
*Thursday, July 9, 2015 by Mike*

**Data management**

In the expansion of (1+x) to the power of n, the first three terms are 1-0.9+0.36. Find the values of x and n.
*Wednesday, July 8, 2015 by Helen*

**Computer Programming**

I already posted this question but I gave it a try I'm not sure if I'm on the right track: Make a util class with three methods. First method's name is add, that returns the result by adding two numbers. Second method's name is multiply, that returns the result...
*Wednesday, July 8, 2015 by Jake*

**Computer Programming**

I already posted this question but I gave it a try I'm not sure if I'm on the right track: Make a util class with three methods. First method's name is add, that returns the result by adding two numbers. Second method's name is multiply, that returns the result...
*Wednesday, July 8, 2015 by Jake*

**BUSINESS STUDIES**

Q1.With the aid of a diagram discuss the marketing systems Q2.Discuss the problems that occur when universities and industry form joint ventures for research purposes.How have these problems been solved?
*Wednesday, July 8, 2015 by Thomas*

**Maths**

Find the first four terms in the binomial expansion of (1+x)^(1/5) and state the range of values of x for which this expansion is valid.Hence approximate (31)^(1/5) correct to four decimal places.
*Wednesday, July 8, 2015 by Lynn*

**Maths**

Find the first four terms in the binomial expansion of (1+x)^(1/5) and state the range of values of x for which this expansion is valid.Hence approximate (31)^(1/5) correct to four decimal places.
*Tuesday, July 7, 2015 by Lynn*

**Adjective**

Please tell me the adjectives in the following sentences. 1)She was blind and deaf but had some sense of touch. 2)Samuel Howe had helped countless handicapped people at Perkins inst. 3) he used unique three sided wooden letters to teach Laura words 4) others doubted whether ...
*Tuesday, July 7, 2015 by Joseph*

**Algebra/Pre Calc**

A parking lot charges $3 to park a car for the first hour and $2 per hour after that. If you use more than one parking space, the second and each subsequent car will be charged 75% of what you pay to park just one car. If you park 3 cars for t hours, which function gives the ...
*Tuesday, July 7, 2015 by Amy*

**Physics**

Find the tension in each of the two ropes supporting a hammock if the first one is at an angle of 19.4° above the horizontal and the second is at an angle of 35.3° above the horizontal. The person sleeping in the hammock (unconcerned about tensions and ropes) has a ...
*Tuesday, July 7, 2015 by Tesia*

**Math statistics **

For a certain computer program a password must be exactly 5 characters long. The first character must be a mnber 0-8, the second, third and fourth character can either be one of the 26 letters or a number 0-5, the fifth character has to be exactly the same as the second ...
*Tuesday, July 7, 2015 by Lizzy*

**Spanish**

I was hoping that someone could prof read my essay and check for proper uses of words, grammar, spelling, and conjugations of words. the first three paragraphs are what I have to write in spanish. the three paragraphs below that is the english version of what I was trying to ...
*Monday, July 6, 2015 by Caleb *

**Geometric Progression**

The first five terms of a sequence are 9,16,25,36,49,.....find A) the 8th term. B) the nth term?
*Monday, July 6, 2015 by Mutakai Rennie*

**Calculus **

A particle moves on a vertical line so that its coordinate at time t is 3 y = t − 12t+ 3, t≥ 0 . When is the particle moving upward and when is it moving downward? Find the distance that the particle travels in the first 3 seconds. I got that t=2 and t=-2 and its ...
*Sunday, July 5, 2015 by John*

**Computer Programming**

I posted this question before: How would I put this into one program? These are the directions: Write a method that takes two parameters. If the first parameter is equal to second parameter. Multiply both and print result. If the first parameter is less than the second ...
*Sunday, July 5, 2015 by Jake*

**English **

In one well-constructed paragraph, explain the overall effectiveness of this speech. Be sure to identify what Pearson’s persuasive goal and what arguments he uses to achieve his purpose. Be sure to offer your own opinion, with evidence from the text, on whether he is ...
*Sunday, July 5, 2015 by Natasha*

**Computer Science**

How would I put this into one program? These are the directions: Write a method that takes two parameters. If the first parameter is equal to second parameter. Multiply both and print result. If the first parameter is less than the second parameter, add the two and print the ...
*Sunday, July 5, 2015 by Jake*

**Computer Science **

I posted this question before. The assignment was: write a Java method if the first parameter is less than the second parameter add the two and print the result ten times. How do I write the result 10 times as a loop? This is what I've got but I have a ton of errors that I...
*Saturday, July 4, 2015 by Trish Goal*

**physics**

An 0.90 kg object is attached to one end of a spring, and the system is set into simple harmonic motion. The displacement x of the object as a function of time is shown in the drawing. With the aid of these data, determine the following values. I got a,b,d,e right. for C, I ...
*Saturday, July 4, 2015 by Lola*

**Computer Science **

This was the assignment: If the first parameter is less than the second parameter add the two and print the result 10 times. THIS PROGRAM IS IN JAVA. I did everything but I can't figure out how to print the result as a loop 10 times. public static void main(String args...
*Saturday, July 4, 2015 by Trish Goal*

**Basic Computer Science**

This was the assignment: If the first parameter is less than the second parameter add the two and print the result 10 times. THIS PROGRAM IS IN JAVA. I did everything but I can't figure out how to print the result as a loop 10 times. public static void main(String args...
*Saturday, July 4, 2015 by Trish Goal*

**Statistics**

Please Help me understand how to work this problem. I have been working on this problem for several days and do not understand what to do. Suppose IQ scores were obtained from randomly selected twins. For 20 such pairs, of people the linear correlation coefficient is 0.922 and...
*Saturday, July 4, 2015 by Shannon*

**Physics **

A particle moving with uniform acceleration has initial velocity u. With the aid of a velocity time graph, show that the displacement s after time t is given by: s=ut+1/2*gt^2
*Saturday, July 4, 2015 by Lynn*

**Basic Computer Science **

Write a method in Java that takes two parameters. If the first parameter is equal to the second parameter multiply both and print the result. Thanks.
*Friday, July 3, 2015 by Trish Goal *

**English**

HIDDEN LESSONS: BY DAVID SUZUKI In spite of the vast expanse of wilderness in this country, most Canadian children grow up in urban settings. In other words, they live in a world conceived, shaped and dominated by people. Even the farms located around cities and towns are ...
*Thursday, July 2, 2015 by No Name*

**statistics /pure maths**

A box contains N identical balls of which 4 are Red, 3 are Green and the rest are White . If 3 balls are drawn at random one after the other without replacement.the probability that all 3 balls are Whit is 1/22. 1.Find the number of identical balls in the container . 2.Find ...
*Thursday, July 2, 2015 by gbafa*

**math**

A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?
*Thursday, July 2, 2015 by nate*

**physics**

the first law of thermodynamics can be expressed with the equation ΔU=ΔQ+ΔW where ΔU is the change of internal energy,ΔQ is the heat supplied to the system. Apply the first law to the brakes of a train as the brakes are applied and the train ...
*Thursday, July 2, 2015 by micheal*

**trigonometry**

If sin theta =a/b and theta lies in first quadrant, find all t-ratios.
*Thursday, July 2, 2015 by pankaj*

**Chemistry**

Predict the answer to each question according to trends in the periodic table. Justify each answer based on the locations of the elements on the periodic table and/or the shell model. a. Which has a greater atomic radius, Al or Cl? b. Which has a greater ionic radius, Na or S...
*Wednesday, July 1, 2015 by Madison*

**M/J Language Arts**

Which set of sentences has the best anecdote that gives details and describes how Abe Lincoln experienced death and grief for the first time?
*Wednesday, July 1, 2015 by Dale Palmer*

**statics**

A box contain 3 red balls and 6 white balls. One ball was pulled and was seen its collar, and after that was pulled another ball.Find the probability that the first ball was white and the second was red ?
*Wednesday, July 1, 2015 by lanya*

**mathematics :geometric progression **

The first three terms of a geometric progression are K-3,2K-4,4K-3 in that order find the value of K and the sum of the first 8 terms of the progression
*Tuesday, June 30, 2015 by Diana *

**Tupper **

Katie made some chocolate truffles. Katie gave 1⁄4 of her truffles to Leanne. Then Katie gave 1⁄2 of the remaining truffles to Jeff. At that point, Katie had 18 truffles left. How many chocolate truffles did Katie have at first?
*Tuesday, June 30, 2015 by Nazima *

**math arithmetic sequence and series**

A theater has 30 seats in the first row, 33 seats in the second row, 36 seats in the third row, and so on in the same increasing pattern. If the theater has 15 rows of seats, how many seats are in the theater?
*Tuesday, June 30, 2015 by elizabeth*

**statistics **

17. All three‐digit numbers that can be formed using the digits 1, 2, 3, 4, and 5 without repeating the digits are (a) 50. (b) 60. (c) 15. (d) 71. 18. One of the counting rules used to determine the total number of possible outcomes for experiments in which the order of ...
*Tuesday, June 30, 2015 by meri*

**statistics **

8. A survey was conducted to learn about the shopping preference of consumers during the holiday season. Out of 2000 respondents 22% said they would prefer to shop online because of the free shipping offered; 45% said that they would like to shop in malls and discount outlets ...
*Tuesday, June 30, 2015 by meri*

**math**

Write out the first five term of the sequence determi whether the sequence converges and if so find its limit (n/(n+3) n=1 to n = ∞
*Tuesday, June 30, 2015 by fatma*

**experiment physics**

experiment vector and addition. is it necessary to label the first load ? explain
*Tuesday, June 30, 2015 by wowoo*

**math**

Write out the first five term of the sequence determi whether the sequence converges and if so find its limit ( n^2)/(4n+1) n= 1 to n = ∞
*Tuesday, June 30, 2015 by fatma*

**math**

Write out the first five term of the sequence determi whether the sequence converges and if so find its limit (n/(n+3) n=1 to n = ∞
*Tuesday, June 30, 2015 by fatma*

**Mah**

Adam has 4 dimes, 4 quarters and 4 nickels in his pocket. He pulls out 2 coins making sure to put the first one back in his pocket before picking the second. What are the odds that he pulls out 2 nickels? A. 1/3 B. 1/9 C. 1/16 D. 1/81
*Monday, June 29, 2015 by Anonymous*

**impoving writting**

Email.is quick, Texting is convenient. Facebook has photos, videos and games. But for all the fancy, multimedia modes of communication out there, nothing beats the thrill of opening the mailbox and finding a personnel letter, written and addressed to you. Writing letters by ...
*Monday, June 29, 2015 by yogita*

**Physics**

A car, moving along a straight stretch of highway, begins to accelerate at 0.0442 m/s^2. It takes the car 30.8 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s. I tried converting 30.8 km/sec to m/s then subtracting 0.0442, ...
*Sunday, June 28, 2015 by Naomi*

**Math**

Two cards. Refers to choosing two cards. If you do not put the first card back in the deck before you draw the next, what is the probability that the first card is a club and the second card is a diamond? Leave your answer as a fraction in SIMPLEST form. The probability that ...
*Sunday, June 28, 2015 by Math*

**Hill school **

The first three terms of a geometric progression are K-3,2K-4,4K-3 in that order find the value of K and the sum of the first 8 terms of the progression.
*Sunday, June 28, 2015 by Diana *

**Finance**

Company is planning to buy a machinery at a cost of $20 million. This machine will be used for 10 years. The machine will bring additional revenue as follows: $10 million for first 6 years and $7 million for the last 4 years Expenses = 60% of revenue for all 10 years After 10 ...
*Saturday, June 27, 2015 by Tanner*

**calc**

The region in the first quadrant bounded by the x-axis, the line x = π, and the curve y = sin(sin(x)) is rotated about the x-axis. What is the volume of the generated solid?
*Saturday, June 27, 2015 by Anonymous*

**math**

1.Glenn bought a car for Php600,000. The yearly depreciation of his car is 10% of its value at the start of the year. What is its value after 4 years? A. Php437,400 B. Php438,000 C. Php393,660 D. Php378,000 2. During a free-fall, a skydiver jumps 16 feet, 48 feet, and 80 feet ...
*Saturday, June 27, 2015 by miles*

**science**

Why is see saw a first class lever?
*Saturday, June 27, 2015 by shreyas*

**Algebra**

The Mathletes won 2 of their first 10 meets. They went on to win all their remaining meets and finished the year with an equal number of wins and losses. What is the total number of meets in which the Mathletes competed?
*Thursday, June 25, 2015 by XXX*

**Advanced Algebra**

If the number m, 4m-8, m^2-6 are the first three terms of an arithmetic sequnce, what is m? I don't know what equation to start with. I tried getting the m from 4m-8 which is equal to 2 but the answer is different on m^2-6. Most likely my method is wrong. What should I do ...
*Thursday, June 25, 2015 by Dannie*

**physics**

a screen is placed at a distance of 1.5 m from a narrow slit. the slit is illuminated by light of wavelength 6000 angstrom if the first minimum on either side of the central maximum is at a distance of 5 mm from , find the width of the slit
*Thursday, June 25, 2015 by Snehal Semwal*

**Math (arithmetic)**

The total seating capacity of an auditorium is 1,065. The first row has 21 seats arithmetic series and each row has one seat more than the row in front of it. How many rows of seats are there in the auditorium?
*Thursday, June 25, 2015 by Roxane*

**advanced algebra**

A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m months and develops the equation mc010-1.jpg to model the situation. Most recently, the scientist counted 138 plants. Assuming there are no limiting...
*Wednesday, June 24, 2015 by Anonymous*

**Math**

Which is the best way to obtain a random sample when surveying a high school with 800 students about what to serve in the cafeteria. A.Only ask the 11th grade class. B.Draw a list of 50 students from a bowl with every student's name in it. C.Ask everyone who takes French ...
*Wednesday, June 24, 2015 by Anonymous*

**intro to psychology**

Which one of the following statements about the Human Genome Project is not true? A. Researchers have identified almost all 3 billion units of DNA. B. Locating a gene is the first step to understanding how it works. C. Most human traits are affected by only one gene. D. Genes ...
*Wednesday, June 24, 2015 by elly*

**Chemistry**

My question is I need to change to symbol on sodium ion, \rm Na^+, followed by the formula of a sulfate ion, \rm SO_4{}^{2-} Its my first time in chemistry class.
*Wednesday, June 24, 2015 by Zulema *

**world history**

which of the following statements does not accurately characterize the neanderthals? a. they were first discovered in Germany b.they are ancenstor to Homo Sapiens c. they have larger brains thtat other hominids. d. they are believed to have lived 200,000 to 30,000 years ago. ...
*Wednesday, June 24, 2015 by siulanis perez*

**Business**

1. Assuming you own a home, where would the appraisal value of your home go in a oersonal balance sheet? A. Under liabilities. B. Under assets. C. under both the equity and the liabilities sections Answer C 2. When you work within an organization,you're typically not ...
*Wednesday, June 24, 2015 by 40Patricia*

**Chemistry**

For this question, I know how to answer the first three questions, but not the rest. 12ml 0.025 M of benzoic acid (Ka=6.3x10-5)is titrated with 0.050 M NaOH. How many moles of benzoic acid are there? I got 0.0003 What volume of NaOH is required?(L) I got 0.006 What is the ...
*Tuesday, June 23, 2015 by Sara*

**math**

For this assignment, you will be finding the surface area and the volume of three different spherical objects. You will need to find three objects and measure the distance around the center using a ruler or tape measure. Show all work! I am using a lemon first. How do I get ...
*Monday, June 22, 2015 by crissy*

**English first paper**

Why are words written in italic even though they are formal English?
*Monday, June 22, 2015 by getty*

**Algebra**

A student has 70%, 80%,79%,and 69% on the first 5 tests . There is one test left and he wants to get at least an 80% in the course. is it possible ? Explain.
*Monday, June 22, 2015 by Phil*

**algebra**

Deb is slicing up a cake for three people. The cake is 45cm long and the second piece is 10cm longer than the first, and the third piece is 5 cm less than double the first . How big is each slice?
*Monday, June 22, 2015 by Phil*

**MATH**

Henry had x oranges. he gave 12 to his sister and 6 fewer to his friend. He remained with twice as many as he gave away. How many oranges had he at first
*Monday, June 22, 2015 by Sirryah*

**Math velocity **

A ball is thrown straight up from the edge of the roof of a 60.0 m tall building. If a second ball is dropped from the roof 2.0 s later what must the initial velocity of the first ball be if both are to reach the ground at the same time?
*Monday, June 22, 2015 by Tom*

**math**

How many terms are there In an arithmetic Sequence with a common different of 4 and with the first and last term 3 and 59 Respectively.
*Friday, June 19, 2015 by nicole*

**improving writing**

I have written two paragraph about the problem and solution plz tell me is it ok if any grammatical mistake or punctuation error is then plz tell me. the content of this paragraph meets the desired topic as per the exam requirements. plz, guide . below is my paragraph after ...
*Thursday, June 18, 2015 by yogita*

**Math**

the ratio of Simone's pocket money to Fiona's pocket money was 2:3. After Fiona had received $5 from her mother, the ratio of Simone's pocket money to Fiona's pocket money became 4:7. how much pocket money did both of them have at first?
*Thursday, June 18, 2015 by Minhthaominh*

**Criminal Justice**

Social Darwinism: A. explains corporate crime. B. is associated with Jacques Rousseau. C. supports aid to the disadvantaged. D. has as its credo the phrase "survival of the fittest." According to my book a,b,c are wrong. And answer D im not sure i dont have anything ...
*Thursday, June 18, 2015 by Amy*

**Biology -- repost**

(To whoever posted the first time -- DO NOT use any tutor's name where YOUR name should be. Impersonation of a tutor is not allowed on this website.) What are the biological terms of the following? 1.Reproductive structure in breadmould 2.acquired immunity obtained through...
*Thursday, June 18, 2015 by Writeacher*

**math**

Brian has a bag that contains 14 red marbles and 12 yellow marbles. He selects a marble at random, and then, without replacing the first one, selects another marble at random. What is the probability that Brian selects a red marble and then a yellow marble? Round your answer ...
*Wednesday, June 17, 2015 by courtney*

**Physics**

A photon having wavelength λ scatters off a free electron at A (see figure below), producing a second photon having wavelength λ'. This photon then scatters off another free electron at B, producing a third photon having wavelength λ'' and moving in ...
*Wednesday, June 17, 2015 by melanie*

**Physics**

2. An elephant is pushing, with 75 000 N of force, on two jeeps that are stuck in the mud. The elephant pushes on the first jeep (which is 2000 kg (2 SD)) and it, in turn, pushes on the second jeep (which is 1500 kg). The co-efficient of friction between the jeeps and the mud ...
*Wednesday, June 17, 2015 by Furkan*

**Physics**

Jennifer is running the 100.0 m dash at track. She accelerates at a rate of 0.88 m/s2 for the first 45 m and then maintains this speed for the remainder of the race. How long will it take her to finish the race?
*Wednesday, June 17, 2015 by Furkan*

**English**

1. There are a house , trees and a shining sun in the first picture. 2. There is an English textbook in Picture 2. Do you like English. English is fun, isn't it? 3. There are two boys. What are they doing? They are playing with a ball in the sea. 4. A math textbook is in ...
*Wednesday, June 17, 2015 by rfvv*

**Chemistry**

I have know clue how to answer this, but I tried something.(predicting products of electrolysis in aqueous solution)/ Predict the products of the electrolysis of a solution of aqueous MnSO4. I first wrote this: Mn^2+ SO4^2- Then for Mn^2+, it can be reduced to Mg(s) -2.36V and...
*Tuesday, June 16, 2015 by Sara*

**chemistry**

The concentration of Mg2+ ion in a solution is 0.010M. At what pH will Mg(OH)2 first precipitate? (Given Ksp Mg(OH)2 equals 1.2*10-11)
*Tuesday, June 16, 2015 by Lisa*

**Maths**

2,x,y are the first three terms of an arithmetic sequence.If the 2nd term is decreased by 1.The three terms will form a geometric sequence.calculate x and y and my working out is that if i said x-1
*Tuesday, June 16, 2015 by Luhle qwabe*

**Chemistry**

Item 1 Maleic acid is a carbon-hydrogen-oxygen compound used in dyeing and finishing fabrics and as a preservative of oils and fats. •In a combustion analysis, a 1.054-g sample of maleic acid yields 1.599 g of CO2 and 0.327 g of H2O. •When 0.609 g of maleic acid is ...
*Tuesday, June 16, 2015 by Samantha*

**pre-calculus 11 **

-x/(x-3) + 2x/(x+2) (x-1) x (x-2) (x+2)/(x-3)(x-3) my question is should i multiply first and then do the adding or subtracting thru a LCD or should i do the adding first?
*Tuesday, June 16, 2015 by george *

**Physics **

Three blocks of mass 10kg, 20kg, 15kg respectively are being pushed in a row on along a horizontal surface with constant velocity by a force applied to the 10kg block.The coefficient of kinetic friction between each of the blocks and the surface is 0.18. What is the magnitude ...
*Tuesday, June 16, 2015 by Alex*