Monday

February 27, 2017
**Chemistry**

Consider an ionic compound, MX2, composed of generic metal M and generic, gaseous halogen X. The enthalpy of formation of MX2 is ΔHf° = –799 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 157 kJ/mol. The first and second ionization energies of M are IE1 = 785...

*Sunday, October 30, 2016 by Joseoh*

**Calculus differentiable and continous identify**

1. Which of the above functions are not continuous where they are defined? Why? 2. Which of the above functions are not differentiable where they are defined? Why? Photo Link: goo.gl/photos/2RPU1dAWoKzUn4Pf8 For the first question, I said that graph F is not continuous because...

*Sunday, October 30, 2016 by Ray*

**Math (Continuous/Differentiable)**

goo.gl/photos/2RPU1dAWoKzUn4Pf8 1. Which of the above functions are not continuous where they are defined? Why? 2. Which of the above functions are not differentiable where they are defined? Why? For the first question, I said that graph F is not continuous because of a jump, ...

*Sunday, October 30, 2016 by Ray*

**math**

gas tank is 1/6 full. after pumping 9 gallons gas it is 5/6 full. how much gas does tank hold? How many gallons were first in the tank?

*Sunday, October 30, 2016 by ellie*

**Math**

The 6th Term Of A Gp Is-2/27 And Its First Term Is 18.What Is The Common Ratio

*Sunday, October 30, 2016 by School-boy*

**Lang Arts**

STORIES OF USEFUL INVENTIONS, excerpt By S. E. Forman 1911 THE MATCH There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned ...

*Sunday, October 30, 2016 by Anonymous*

**Math**

Find The Term Of An Ap Whose First Term Is 2 And The Common Difference Is 0.5

*Sunday, October 30, 2016 by Chukwuma*

**Mathematics**

Yumi's grandparents presented her with a gift of $12,000 when she was 10 yr old to be used for her college education. Over the next 7 yr, until she turned 17, Yumi's parents had invested her money in a tax-free account that had yielded interest at the rate of 5.5%/year ...

*Sunday, October 30, 2016 by Dominique*

**Mathematics**

Yumi's grandparents presented her with a gift of $12,000 when she was 10 yr old to be used for her college education. Over the next 7 yr, until she turned 17, Yumi's parents had invested her money in a tax-free account that had yielded interest at the rate of 5.5%/year ...

*Sunday, October 30, 2016 by Dominique*

**Math**

The first number is the price of 1 ounce of soda if 64 ounces cost $1.92

*Sunday, October 30, 2016 by Grace*

**math**

2 water tanks are being set up.Each one starts with 100 liters of water.The first tank fills at the rate of 15 liters per min.The second tank fills at the rate of 20 liters per min.When will the first tank contain 7/3 as much as the second tank?

*Sunday, October 30, 2016 by iselle*

**DISCRETE MATH**

Determine whether the following is a recursive or explicit. Then, find the first four terms of the following sequence. a) a_n = 〖na〗_(n-1) where a_0 =5 b) a_n = a_(n-1) + 3a_(n-2) where a_0 = 1 and a_1 =2 c) a_n = 2^n + 5•3^n for n=0,1,2,3

*Sunday, October 30, 2016 by roze*

**Math**

2 water tanks are being set up.Each one starts with 100 liters of water.The first tank fills at the rate of 15 liters per min.The second tank fills at the rate of 20 liters per min.When will the first tank contain 7/3 as much as the second tank?

*Saturday, October 29, 2016 by Chase*

**maths**

A bus traveled from LA to CA. It covered 115 km in the first one and a half hour and the remaining 95 km in two and a half hour. What was the average speed in km/h for the whole trip?

*Saturday, October 29, 2016 by Eno*

**math**

An airplane leaves Atlanta at 2 PM and flies north at 250 miles per hour. A second airplane leaves Atlanta 30 minutes later and flies north at 280 miles per hour. At what time will the second airplane overtake the first? Answer Choices 6:20 PM 6:00 PM 6:40 PM 6:50 PM 7:10 PM

*Saturday, October 29, 2016 by Zara*

**Discrete Math**

In roulette, a wheel with 38 numbers is spun. Of these, 18 are red, 18 are black, and 2 are green. The probability that when the wheel is spun it lands on any particular number is 1/38. a) What is the probability that the wheel lands on a red number? b) What is the probability...

*Saturday, October 29, 2016 by Christopher*

**Math REALLY NEED HELP**

1. nineteen thousand, one hundred forty-two millionths was the first guess. the second guess was eight thousand, five hundred forty-one hundred-thousandths. which was greater and by how much? 2. They were happy because 80 of the people could be seated comfortably in each ...

*Saturday, October 29, 2016 by Deathfromabove*

**English**

1. Dokdo was first recorded as part of Korea in the 500s. 2. Dokdo was first recorded as a part of Korea in the 500s. -------------------------- Can we use both expressions, 'part of' and 'a part of'?

*Saturday, October 29, 2016 by rfvv*

**math**

each day Ashley practices free throws. The first day she takes 12 shots, and every day after she takes 2 more than the previous day. How many free throws will she shoot on the 6th day. Thank you. =)

*Saturday, October 29, 2016 by Aleah*

**Physics**

The wheels of a skateboard roll without slipping as it accelerates at 0.45 m/s2 down an 75-m-long hill. If the skateboarder travels at 1.8 m/s at the top of the hill, what is the average angular speed of the 2.6-cm-radius whe els during the entire trip down the hill? I first ...

*Saturday, October 29, 2016 by Anonymous*

**English**

In First Confessions, Nora can best be identified as? A:flat*** B:round C:dynamic D:protagonist

*Friday, October 28, 2016 by Anonymous*

**Social Studies**

Which of the following is a characteristic of Earth's first people? A. They lived in cold places B. They lives far from water sources C. They lived on the Asian continent D. They moved around in search of food** How do people in northern Chad adapt to the lack of arable land ...

*Friday, October 28, 2016 by Anonymous*

**Math (Confused)**

How many international direct-dialing numbers are possible if each number consists of a four-digit area code (the first digit of which must be nonzero) and a five-digit telephone numbers (the first digit must be nonzero)? a. 567,000,000 b. 486,000,000 c. 1,053,000,000 d. 729,...

*Friday, October 28, 2016 by Kal Jay*

**math**

If two dice are rolled and their faces noted, find each of the following probabilities: a) the sum of the two dice is 8 b) both dice show even numbers c) the sum of the two dice is 8 OR both dice show even numbers d) the sum of the numbers is 7, given that at least one die ...

*Friday, October 28, 2016 by Anonymous*

**math**

Six slips of paper, with a different digit from 1 to 6 printed on each, are placed in a box. The papers are well mixed. One slip is drawn and replaced. The papers are well mixed, and a second slip is drawn. Find the probability of each of the following: a) the first is marked ...

*Friday, October 28, 2016 by Anonymous*

**math**

You are hired by your local member of parliament to conduct a survey on unemployment, crime, taxes and mail delivery. You make up a question on each topic for your survey sheet. If the questions are arranged in random order on the sheet, find the probability of each of the ...

*Friday, October 28, 2016 by Anonymous*

**True or False Please Help**

(10 Environmental Science True or False Questions. Please correct me if I'm wrong.) 1. Domestic of animals and plants through history has enabled humankind to improve their lifestyle. (True) or False 2. Domestication is the process of selecting wild organisms for their ...

*Friday, October 28, 2016 by GummyBears16*

**BASIC TECH**

With aid of pear if compass and ruler bisect a line of 12cm.

*Friday, October 28, 2016 by ZIONKING'S*

**math check answers**

you invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13

*Thursday, October 27, 2016 by Anonymous*

**Spanish Literature**

- La Peregrina= The Pilgrim Ok, so I have submitted the questions I have to answer in the form they were presented to me. Below the questions I have submitted my answers first in English and then how I have translated them into Spanish. (I did have difficulty with finding the...

*Thursday, October 27, 2016 by Jaylnn*

**Math**

Lorraine is placing tiles in rows.In each succeeding row,she doubles the number of tiles.The ninth row has 768 tiles.How many tiles did Lorraine use in the first row?

*Thursday, October 27, 2016 by Chase*

**math check answers**

You invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13

*Thursday, October 27, 2016 by Anonymous*

**English**

In Marigolds how does the author use of tone help describe Elizabeth's perception of her childhood? -her tone sounds solemn at first showing that she was reflecting over her sad or hard childhood. Then it switches to matter of fact because she realizes she did wrong and how ...

*Thursday, October 27, 2016 by Karla*

**English**

"The Yellow Wallpaper" by Charlotte Perkins Gilman Can someone check to see if these are right? Much appreciated. I tried to include the quotes to make it a little easier. 1. The narrator's attitude towards the setting in lines 1-5 is best described as ? " It is very seldom ...

*Thursday, October 27, 2016 by Allie*

**Social studies**

Explained three what's why a newly couple would delay their first child

*Thursday, October 27, 2016 by Stacey*

**Algebra 1**

Thank you so much for helping me with the first question. I have and another question that I am a little confused on also, could you please help me with this one too? Y-8=3/7 (X-6) I got y= 7/3x +38/7 Is this correct?

*Thursday, October 27, 2016 by Marina*

**English**

In 'first confession' Gran is described as a ? A. Flat character < B. Round character C. Stock character D. Antagonist < I think it's either A or D... not sure which one

*Thursday, October 27, 2016 by Dani*

**Literature**

Classify the capitalized words. In 1609, Galileo was the first person to look AT THE MOON through a telescope. Is it a adjective phrase or adverb phrase?

*Thursday, October 27, 2016 by Lenae*

**Math**

Barry has three bills to pay. The first bill is three times the amount of the second one. The third bill is ten times the amount of the second bill. The difference between the first bill and the third bill is $1050. What is the total of the three bills?

*Thursday, October 27, 2016 by Lillie*

**Math**

Barry has three bills to pay. The first bill is three times the amount of the second one. The third bill is ten times the amount of the second bill. The difference between the first bill and the third bill is $1050. What is the total of the three bills?

*Thursday, October 27, 2016 by Lillie*

**Math**

The first pattern of triangles it uses 4 matches ( 3 matches for build a triangle and 1 matches for connected to other triangles). a)Find the number of triangles if there are 100 matches? b) write the formulas

*Wednesday, October 26, 2016 by Anonymous*

**Algebra**

A fitness club offers two membership options. The first option has an initial fee of $50 and then charges $30 per month. The second option has no initial fee but charges $40 per month. After how many months, x, will the first option be a better value than the second?

*Wednesday, October 26, 2016 by Aimee*

**Physics**

Two identical massless springs of constant k = 200N/m are fixed at opposite ends of a level track, as shown. A 5 kg block is pressed against the left spring, compressing it by 0.15m. The block is then released from rest. The entire track is frictionless except for the region ...

*Wednesday, October 26, 2016 by Anonymous*

**Math**

alicia rides 25% of a 100 mile trip the first day. she rides 331/3% of the remaining distance the second day.whatpercent of the original distance dose she have ride to finish her trip

*Wednesday, October 26, 2016 by Austin*

**Calc**

Use spherical coordinates. Evaluate Triple integral SSSE where E lies between the spheres x^2 + y^2 + z^2 = 25 and x^2 + y^2 + z^2 = 49 in the first octant.

*Wednesday, October 26, 2016 by anon*

**Math**

If my input is 0 and output is blank then my input is 1 and output 2 then input 3 output 22 input 4 output 32 how do i find the first output that is blank?

*Wednesday, October 26, 2016 by Morgan*

**Help on Social Studies please!**

Part A: What is the basic independent unit of world politics? a. country b. province c. nation *** d. organization Part B: Which of the following groups is an example of the basic unit you selected in the previous question? a. people who share a common language b. people who ...

*Wednesday, October 26, 2016 by Eva*

**7th American History**

Can someone help me please? I have to summarize why John Adams was not reelected in the election of 1800. I know that he wasn't because he declared war on his first term and Thomas Jefferson was a popular candidate, but are there any more reasons?

*Wednesday, October 26, 2016 by Anonymous*

**american history**

what event led to the first shots being fired at the battles of lexington and concord

*Wednesday, October 26, 2016 by Anonymous*

**Calc answer check**

True or false If y =ax+b then DeltaY/DeltaX = dy/dx If Y= x+c then dy = dx If you can measure the length and width of a rectangle correct within .1 cm, then the calculated area will be correct within .1 cm as well. I have True for the first 2 and false for the last one.

*Wednesday, October 26, 2016 by Amber*

**geography**

during what period of time did global interdependence first emerge

*Wednesday, October 26, 2016 by Anonymous*

**Algrebra**

I don't understand on how to answer this question. Could you please help and tell me the parts for the graphs? 1) X,Y is a point in the first Quadrant Identify the location of: A.(-X,Y) B.(X,-Y) C.( -X,-Y) 2) X,Y is the point on the second quadrant. Find the location of: A...

*Tuesday, October 25, 2016 by Anonymous*

**Algebra**

The sum of two numbers is 1161. The first number is 183 less than twice the second number. What are the numbers?

*Tuesday, October 25, 2016 by Katie*

**Chemistry**

In a three reactions system the first two reactions are endothermic with DeltaH values of 138kj and 241kj. if the final reaction is exothermic what is the minimum value of DeltaH3 that would make the overall reaction exothermic? explain your reasoning. i beleive the minimum ...

*Tuesday, October 25, 2016 by Anonymous*

**Math**

Mrs. Bradley's store has 2 floors. The first floor is 20ft long, 15ft wide and 8ft high. The second floor is 12ft long, 15ft wide, and 8ft high. What is the volume oof Mrs. Bradley's store in cubic feet?

*Tuesday, October 25, 2016 by Kole*

**Sequence**

In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. determine the sequence.

*Tuesday, October 25, 2016 by KAdila*

**Maths GRE**

What single discount is equivalent to two successive discounts of 15% and 10% 100 - {(100-first discount) X (100- second discount)/100} = 100 - (100-15)X(100-10)/100 = 100 - 85 X 90/100 = 100 - 76.5 = 23.5

*Tuesday, October 25, 2016 by Marco Victoria*

**Mathematics**

The first term of an Arithmetic Progression is -4 and the 15th term is double the 5th. Find the 12th term of the AP

*Tuesday, October 25, 2016 by KAdila*

**Maths GRE**

At the Acme Cement Company, employees contribute to a welfare fund at the rate of 4% of the first $1000 earned, 3% of the next $1000, 2% of the next $1000 and 1% of any additional income. What will Mr. Morris contribute in a year in which he earns $20,000? A)290 B)200 C)90 D)...

*Tuesday, October 25, 2016 by Marco Victoria*

**Physics Help!**

A hockey puck moving at 0.4600 m/s collides with another puck that was at rest. The pucks have equal mass. The first puck is deflected 37.00° to the right and moves off at 0.3700 m/s. Find the speed and direction of the second puck after the collision.

*Tuesday, October 25, 2016 by Helena*

**Statistics Probability**

A jar contains 5 red marbles, numbered 1 to 5, and 11 blue marbles numbered 1 to 11. a) A marble is chosen at random. If you're told the marble is red, what is the probability that it has the number 2 on it? b)The first marble is replaced, and another marble is chosen at ...

*Monday, October 24, 2016 by Jesus*

**7th Grade Math**

Sarah ran her first mile in 8 minutes. Her next mile was run in 6 minutes. What was the percent decrease in her mile time?

*Monday, October 24, 2016 by Geek Girl*

**math**

you buy a bicycle lock with 4 dials to enter the combination. the first dial has numbers from 0 to 9, the next dial has numbers from 3 to 8, the next has numbers from 0 to 4 and the last has letters from A to Z. write the equation for the number possible combinations of the ...

*Monday, October 24, 2016 by issy*

**Math**

The first question is show how to make one addend the next tens numbers. Complete the new addition sentence: 15 + 37= I need a break down to how to to figure this out. Please.. I have no clue what to do.

*Monday, October 24, 2016 by Paula*

**History**

Who first thought they had encountered the ten "lost tribes"? This question is a response question if you can write it in a few sentences if not that's fine.

*Monday, October 24, 2016 by Anonymous*

**Chemistry**

In a three reactions system the first two reactions are endothermic with DeltaH values of 138kj and 241kj. if the final reaction is exothermic what is the minimum value of DeltaH3 that would make the overall reaction exothermic? explain your reasoning. i beleive the minimum ...

*Monday, October 24, 2016 by Anonymous*

**LANGUAGE ARTS**

(1) Everything I know about gardening I learned from my good friend Sandy. (2) When I first moved from Iowa to Georgia last May, I tried planting a vegetable garden right away. (3) As I happily weeded the ground I thought to myself, “My garden’s produce will be here in a ...

*Monday, October 24, 2016 by CHECK MY ANSWERS PLEAAAAAASSSSSSSSEEEEEEEE*

**algebra**

If an A.p. Fifth term exceeds twice second term by 1. The tenth term xeceeds twice fourth term by 3 * find first term and common difference * find sum of first twenty-five terms.

*Monday, October 24, 2016 by Anwar*

**algbebra**

The fifth term of an A.p. Exceeds the second term by 1.The tenth term exceeds twice the fourth term by 3 * find first term and common difference * sum of first twenty-five terms.

*Monday, October 24, 2016 by Anwar*

**Physics**

A box of mass m = 59.0 kg (initially at rest) is pushed a distance d = 84.0 m across a rough warehouse floor by an applied force of FA = 204 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. ...

*Sunday, October 23, 2016 by Daisy*

**science**

The first ionization energy of Boron is 799, give an equation illustrating first ionization with Boron

*Sunday, October 23, 2016 by Alexandrina*

**Chemistry**

In a three reactions system the first two reactions are endothermic with DeltaH values of 138kj and 241kj. if the final reaction is exothermic what is the minimum value of DeltaH3 that would make the overall reaction exothermic? explain your reasoning. i beleive the minimum ...

*Sunday, October 23, 2016 by Anonymous*

**English**

1. Only a part of story is true. 2. Only part of the story is true. 3. Dokdo was first recorded as part of Korea in the 500s. 4. Dokdo was first recorded as a part of Korea in the 500s. (Do we have to use 'a' before 'part'? Are both okay?)

*Sunday, October 23, 2016 by rfvv*

**Easy art**

Who is famous for painting the ram's skull and has the first name that is a state?

*Sunday, October 23, 2016 by Anonymous kid (no name pl*

**Economics**

Below are my answers to the following multiple choice questions, please check and correct me if im wrong, thanks :) 1.Manufacturing high end products in Canada requires (Multiple Answers Allowed) Select one or more: a. Very focused customer strategy b. International marketing ...

*Sunday, October 23, 2016 by kary*

**maths**

Find the first term (a) of ago sequince in which the common ratio is 2 and sum of the first 10 terms are 93

*Sunday, October 23, 2016 by nasra*

**chemistry**

proof that the energy of the first spectra line in Lyman series E =3/4Eo Eo=2.18×10-18

*Sunday, October 23, 2016 by mesfin Gebre*

**physics**

The pressure of water on the ground floor is 40,000 Pascal, and at the first floor is 10,000 pascal. Find the height of the first floor.

*Saturday, October 22, 2016 by Manilyn*

**Business Mathematics**

Find the sum of first thirteen terms of a linear sequence whose 8th term is 18 and 11th term is 24.

*Saturday, October 22, 2016 by Boadi Yiadom Ellen*

**math**

It takes 8 hours for one crew to clean an office building. It takes a second crew 10 hours to clean the same building. If the first crew works 2 hours and leaves and the second crew takes over to complete the job, how long will it take the second crew to finish cleaning the ...

*Saturday, October 22, 2016 by Christos*

**Physical**

A motor car travelling at 14m/s on dry flat surface should be able to stop in 14m.Assuming the deceleration to be uniform. Given: its value and the corresponding bracking time is -7m/s^2 , 2 sec Calculate the distance travelled during the first second after the application of ...

*Saturday, October 22, 2016 by Joey*

**History**

1. What significant effect did the Treaty of Paris, signed after the French and Indian War, have on France? France had to withdraw to its empire in Central and South America. France had to allow the British to claim and settle the Ohio Valley. France lost its claim to the ...

*Friday, October 21, 2016 by coolguy*

**English help**

I added more of my ideas: Is the main conflict in Return of the soldier between Chris's desire to return to the past and his responsibility to the present, between Jenny and Kitty or is it between two other opposing forces? I must write an essay about this so please help me. I...

*Friday, October 21, 2016 by Mark*

**English**

In 1609, Galileo was the first person to look AT THE MOON through a telescope. Is this an adjective phrase or an adverb phrase.

*Friday, October 21, 2016 by Lenae*

**English**

Does writing an expository paragraph or writing a literary paragraph or writing a persuasive paragraph come first alphabetically?

*Friday, October 21, 2016 by Lenae*

**math**

the 6th term of a gp is 2000 and it ratio is 10,find it first term

*Friday, October 21, 2016 by Philip*

**English**

1. I remember when we first met. 2. I remember that we first met. ----------------------------- Are both grammatical though they are different slightly in meaning? 3. I remember the fact that we first met. (Is this correct?)

*Thursday, October 20, 2016 by rfvv*

**Physics**

A stone is tied to a string (length = 0.600 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in ...

*Thursday, October 20, 2016 by Sam*

**English**

Rewrote This because I added more of my ideas: Is the main conflict in Return of the soldier between Chris's desire to return to the past and his responsibility to the present, between Jenny and Kitty or is it between two other opposing forces? I must write an essay about this...

*Thursday, October 20, 2016 by Mark*

**English**

"The Lottery" (1948) by Shirley Jackson ** this website won't allow for links; therefore, I couldn't put the link of this story** (the short story is online for reference) The question that needs to be answered is: EXPLAIN the source of horror in Jackson’s story. (Hint: ...

*Thursday, October 20, 2016 by Jamie*

**Math**

What is the answer to use the rule to write the first 12 numbers in the pattern the square root of the pattern in the numbers first rule of 6 first term

*Thursday, October 20, 2016 by Hannah Quarles*

**US HISTORY**

Who attacked first on the Battle of Little Bighorn??? The natives or the army?

*Thursday, October 20, 2016 by s*

**English**

Is the main conflict in Return of the soldier between Chris's desire to return to the past and his responsibility to the present, between Jenny and Kitty or is it between two other opposing forces? I must write an essay about this so please help me. I do feel its the first ...

*Thursday, October 20, 2016 by Mark*

**History**

How did the South attempt to compensate for it's disadvantages? A:Southern military leaders devised the Anaconda Plan to end the war quickly. B:Confederate troops remained within their own territory at all times. C:Southern leaders approached foreign governments for aid*** D:...

*Thursday, October 20, 2016 by Marylyn*

**Math**

Three numbers form a g.p.if the first and third numbers are 5 and 245 respectively, find two possible values for the middle number.

*Thursday, October 20, 2016 by Tony*

**Math**

Three numbers form a g.p.if the first and third numbers are 5and245 respectively,find two possible values for the middle number.

*Thursday, October 20, 2016 by Tony*

**Check my answers**

1. Why was capturing Quebec so important to the British during the French and Indian War? (1 point) By gaining control of Quebec, the British could increase financial and military support from the colonists. By gaining control of Quebec, the British would disrupt French ...

*Thursday, October 20, 2016 by BILL CIPHER*

**maths sequence**

Find the sum of the first eight terms of a linear sequence whose first term is 6 and last team is 46. Plz help

*Thursday, October 20, 2016 by Anonymous*

**Readiny**

The first three sentences are (1) Everyhting I know about gardening i learned from my good friend Sandy (2) When I first moved from Iowa to Georgia last May, I tried planting a vegetable garden right away. (3) As i happily weeded the ground i thought to myself , "My garden's ...

*Thursday, October 20, 2016 by Ras*

**history**

Which was Pope Urban II's goal in calling for the First Crusade in 1095? a.) opening trade with China b.) converting Muslims to Christianity c.) recapturing the Holy Land d.) sacking the city of Constantinople

*Thursday, October 20, 2016 by megann*