Sunday

May 29, 2016
**Reaction Engineering**

The irreversible elementary reaction 2A ---+ B takes place in the gas phase in an isothermal tubular (plug-Jlow) reactor. Reactant A and a diluent C are fed in equimolar ratio, and conversion of A is 80%. If the molar feed rate of A is cut in half, what is the conversion of A ...
*Wednesday, May 25, 2016 by Suleiman*

**check my 3 world history answers**

2. All of the following were results of the Supreme Court's decision in Brown v. Board of Education EXCEPT: Schools were to be integrated "with all deliberate speed"**** Sit-ins and boycotts were declared illegal 7. All of the following were part of the Great ...
*Tuesday, May 24, 2016 by Anonymous*

**CHECK MY WORLD HISTORY ANSWERS**

1 star* at the end of each question and multiple stars*** at the end of my answer 1. Which laws called for strict separation of the races in the South? * anti-discrimination laws Plessy v. Ferguson laws Jim Crow laws**** Boycott Laws 2. All of the following were results of the...
*Tuesday, May 24, 2016 by catherine*

**Math (Elementary Algebra)**

What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4 ? Please help this is for my accuplacer. If you could show your work explaining how you got the answer that would be awesome. Thank you in advance
*Monday, April 18, 2016 by Leah*

**Physics**

Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade 10th Grade 11th Grade 12th Grade College Adult ...
*Sunday, April 17, 2016 by Rameel*

**Elementary Statistics**

SAT math test scores for all students taking the test are approximately normally distributed with mean score of 514 and std. deviation of 118. What is the probability that a randomly chosen student will earn a score above 600 on their SAT math test? There's 19 students, ...
*Saturday, April 16, 2016 by Leah*

**Elementary education **

A napkin ring is being made of cast silver. It has the shape of a cylinder 1.25 inches high, with a cylindrical hole 2 inch in diameter and a thickness of 1/16 inch. How many ounces of silver are needed? [silver weighs 6 ounces per cubic inch]
*Friday, April 8, 2016 by Ashley *

**elementary quantitative methos**

still part of the same Q, After 8 years the interest rate drops to 18percent p.a,compounded monthly and the present value of the loan is R128 951.39. What will his new monthly payments be?
*Friday, April 8, 2016 by irvin spies*

**elementary quantitative methos**

with reference to previous question,what is the outstanding principle at the beginning of the second year,rounded to the nearest rand
*Friday, April 8, 2016 by irvin spies*

**elementary quantitative methos**

andrew bought a flat of R240000,he made a down payment of R100000 and obtained a 20 year mortgage bond for the balance at an interest rate of 19,5 percent per annum,compounded monthly,what is his montly payment?
*Friday, April 8, 2016 by irvin spies*

**elementary quantitative methos**

when buying their home,the Lee family takes out a 15 year loan. Their monthly payments are R5842the interested rate is 10,5 percent per annum,compounded monthly.the amount of money they borrowed were?
*Friday, April 8, 2016 by irvin spies*

**elementary quantitative methos**

a businesswoman wants to invest the same sum of money at th same of each quarter for 5 years.the investment will earn 8,5 percent interest per year,quarterly compounded. In order to have accumuated a total of R30000 at the of five years,what will the required quarterly ...
*Friday, April 8, 2016 by irvin spies*

**Math**

An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to any of the 107 students in the school. There are 42 in the Spanish class, 32 in the French class, and 23 in the German class. There are 14 students ...
*Friday, April 1, 2016 by Yasmine*

**chemistry**

A certain elementary gas is triatomic and has vapour density 48 . The atomic mass of the gas is (a) 48 (b) 96 (c) 32 (d) 16 ..
*Friday, April 1, 2016 by jay*

**English**

There are 7 classes for first year students. Each class is composed of about 30 students. Emily is a student of Class 1-2. One of his classmates who went to the same elementary school asks: Which class are you in? What is the answer to the question? 1. I'm in Class 1-2. 2...
*Wednesday, March 23, 2016 by rfvv*

**English**

1. Middle school is the same. 2. Elementary school is the same. 3. Middle school is not the same as elementary school. 4. Middle school is different from elementary school. ------------------ In each sentence, Is 'same' an adjective or a pronoun? #3 is the same as #4 ...
*Friday, March 11, 2016 by rfvv*

**English**

What is different in middle school compared with elementary school? In middle school, we wear a school uniform, we have different teachers for for each subject, and we don't stay with our homeroom teacher all day. ------------------------- Are the question and the answer ...
*Friday, March 11, 2016 by rfvv*

**Quick calc question**

An elementary student kicks a ball straight into the air with a velocity of 16 feet/sec. If acceleration due to gravity is −32 ft/sec2, how many seconds after it leaves his foot will it take the ball to reach its highest point? Assume the position at time t = 0 is 0 feet...
*Thursday, March 3, 2016 by nan*

**Chemistry **

I have to write the rate law for two elementary reaction equations A ) 2a+b>c+d B ) X+Y>Z I'm pretty sure it's just k[ A ][ B ] and k[ X ][ Y ] but does the coefficient affect it in this case? is it [ A ]^2 ?
*Wednesday, February 24, 2016 by Dan*

**Chemistry **

I have to write the rate law for two elementary reaction equations A ) 2a+b>c+d B ) X+Y>Z I'm pretty sure it's just k[ A ][ B ] and k[ X ][ Y ] but does the coefficient affect it in this case? is it [ A ]^2 ?
*Wednesday, February 24, 2016 by Dan*

**Calculus**

An elementary student kicks a ball straight into the air with a velocity of 16 feet/sec. If acceleration due to gravity is -32 ft/sec^2, how many seconds after it leaves his foot will it take the ball to reach its highest point? Assume the position at time t = 0 is 0 feet.
*Sunday, February 14, 2016 by John*

**Elementary Math**

The question stated: Write a numerator that makes the statement true. 1/2< /10 < 4/5 My answer is 7/10 am I correct< If not please explain. Thanks
*Monday, February 1, 2016 by Cj*

**Wilson Elementary**

Molly uses 192 beads to make a bracelet and a necklace. It takes 5 times as many beads to make a necklace than it does to make a bracelet. How many beads are used to make a necklace. Please breakdown of step by step.
*Wednesday, January 27, 2016 by Amman*

**Psychology**

A man feels anxious and a little sick to his stomach when he walked up to the front door of his old elementary school. School had been very hard for him and he remembers feeling “stupid” a lot of the time he was in school. What is the unconditioned stimulus and ...
*Wednesday, January 27, 2016 by Kay*

**math**

Hill crest public elementary school was recycling their copier paper after the students had completed the worksheets.They found that when they filled a barrel with paper,it weighed an average of 225 kilograms if they collected 16 barrels of paper during the year.What was the ...
*Monday, January 25, 2016 by Anonymous*

**Careers**

What does labour market information report about future trends for elementary school teachers? what is the level of performance expected for an elementary school teacher?
*Monday, December 28, 2015 by Teacher*

**Curriculum Areas**

1. Using macaroni in child’s art project A. Is a creative use. B. Should be done only with supervision. C. Should be discouraged because. D. Isn’t a good idea; young children might try to eat it. 2. The use of rhythm instruments in a music program A. Is most ...
*Thursday, December 3, 2015 by Anonymous*

**Minanga elementary schol**

Five consecutive whole numbers has s sum of 225.what is the largest number
*Thursday, December 3, 2015 by Princess*

**stafford elementary school**

A car is stopped at a red light. The light turns green,and the car turns right around a corner. Which property of the car is changing? A: position only B:speed only C:direction only D:acceleration
*Thursday, December 3, 2015 by Sabah*

**Creative Activities in Other Curriculum Areas**

1. Using macaroni in child’s art project A. Is a creative use. B. Should be done only with supervision. C. Should be discouraged because. D. Isn’t a good idea; young children might try to eat it. 2. The use of rhythm instruments in a music program A. Is most ...
*Wednesday, December 2, 2015 by Anonymous*

**Early Childhood**

1. Using macaroni in child’s art project A. Is a creative use. B. Should be done only with supervision. C. Should be discouraged because. D. Isn’t a good idea; young children might try to eat it. 2. The use of rhythm instruments in a music program A. Is most ...
*Sunday, November 29, 2015 by Tum*

**Science project**

Hi, can anyone please propose a science project that has to do with bacteria at a high school level. Any will do.The ones I've looked up online are mostly elementary and I had to search up college level ones..which gave the same results.
*Tuesday, November 24, 2015 by Eunice*

**Spanish**

An elementary bilingual teacher asks you to come to her class to talk to her students about how you used to celebrate the holidays with your family. First you want your Spanish teacher to hear what you plan to say. Be sure to include where you used to celebrate most family ...
*Friday, November 6, 2015 by Alex*

**math**

The entire second grade at Sunshine Elementary participated in a single elimination checkers tournament. There are a total of 118 second graders and so there were 59 matches in the first round of the tournament. In the second round,the 59 remaining students were paired, ...
*Friday, October 30, 2015 by DC*

**Language Arts**

The directions are underline the nouns in the sentence and say if they are common, proper or collective. 1. He gave me a bunch of grapes. -underline the word bunch which is collective 2. London is on the river Thames. -underline London and Thames which are both proper 3. The ...
*Thursday, October 29, 2015 by Patrick*

**Kennedy **

There are 28 classes at an elementary school. The school cafeteria needs 22 cartons of milk per class each day. Milk costs 25 cents per carton. How many cartons of milk does the manager need to order each day?
*Monday, October 26, 2015 by Jon*

**pleaswe help algebra**

Of the 125 students in an elementary school, some only play checkers, some only play chess, and some play both. 89 students play checkers and 45 students play checkers and chess. How many students in the school play chess If A = {2, 6, 10, 14, 18, 22, 26, 30} and B = {-6, -3, ...
*Sunday, October 18, 2015 by XenaGonzalez*

**Walnut hill elementary **

A football team had 4 plays. The first play they gained 6 yards, the second play they lost 3 yards, the third play they lost 2 more yards and the last play they gained 1 more yard. If they started at he zero yard line where are they now?
*Wednesday, October 14, 2015 by Tess*

**Math**

200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B? A) 0.25 B) 0.60 C) 0.70 ...
*Wednesday, October 14, 2015 by Hailey*

**elementary set theory**

Let Bi(2i,i-1) where I is the element of the integer,find (B2 U B4)
*Tuesday, October 13, 2015 by Odion elect*

**Stats**

In an elementary school, 29% of children wear glasses. Suppose that a random sample of 31 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
*Tuesday, October 13, 2015 by Semmy*

**Chemistry**

I am doing an elementary experiment regarding separating mixtures. My mixture contained NaCl, SiO2, and CaCO3. In the beginning, I calculated the mass of my mixture (all components together). As I completed the experiment, some of the elements were lost either by partial ...
*Sunday, September 27, 2015 by Michael*

**eced**

The rate of physical growth is slow during which period of life? Prenatal development. B.the first year of life. C. Preschool and elementary years. I am think c.
*Friday, September 25, 2015 by woody*

**AP Chemistry **

Hey guys! I'm stuck on some study guide problems... (On the bottom of this, I put what answers make sense to me) A) A factor that affects the speed of heterogeneous reactions but not of homogeneous reactions is 1)nature of reactants 2)concentration of reactants 3)area of ...
*Wednesday, September 23, 2015 by Allie *

**education**

My other question is Which is your favorite Assessment to use? Elementary age Anecdotal Records •Checklists •Event Sampling Portfolios •Rating Scales •Rubrics •Running Record •Teacher and Child Self-Assessments •Time Sampling Of these what ...
*Monday, September 21, 2015 by MAc*

**westward elementary**

Math 14+45=24+35
*Monday, September 21, 2015 by niya*

**mamacao elementary school**

In the multiplication at the right, each ĺetter represents a different digit. If A is not zero, what are the values of A, B, C and D? ABC × C Equal D B C
*Thursday, September 17, 2015 by glaidylrose *

**Elementary Mathematics**

The probabilities that May, Lily and Mary will pass a test are 2/5, 7/10 and 9/10 respectively. Find the probability that (i) At least one of them will pass the test, (ii) 2 of the girls will pass the test
*Saturday, September 12, 2015 by Seow Kian*

**Business Managment**

I just want to know if these are right and if not, which ones I got wrong. 1.Based on a _______ statement, a company sets long-term _______ mutually agreed on by workers and management and, from these, sets specific, short-term _______. A. vision; goals; objectives B. mission...
*Wednesday, September 9, 2015 by Krystal*

**Elementary Euclidean Geometry(Math)**

Little Joseph once said: I was once asked to prove that (PROOF ONE) in a right triangle, the sum of the squares of two sides equals the square of the third. Smart little rascal that I am, I proved it with ease. I was then asked to prove that (PROOF 2) if the sum of the squares...
*Wednesday, September 2, 2015 by Dav*

**Travis elementary school**

The hundreds digit of my number is less than the tens digit.the one's digit is greater than the tens digit. What could my number be?
*Tuesday, September 1, 2015 by jaylee Gonsalez*

**Oak view elementary **

It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word
*Monday, August 31, 2015 by Miracle*

**Inwood elementary**

Round 65.736 to the nearest tenth
*Tuesday, August 25, 2015 by NiyAh*

**English (3rd grade)**

Where can I read Berries, Berries, Berries ? Wasn't given the author from 3rd grader and her school is August Ahrens Elementary School. The book has a bear on the front cover and the bear is looking for berries for Spring. I have already searched the book on google and I ...
*Tuesday, August 25, 2015 by anon*

**Kaputian central elementary school**

My math book is in my locker. All the digits in my locker are odd numbers and their sum is 11. There are 120 lockers. What is my locker number?
*Sunday, August 9, 2015 by Nicirl dionsay*

**chemistry**

A reaction proceeds by the following three-step mechanism with elementary rate coefficients, k. A + B → C k 1 C → A + B k -1 C → B + D k 2 (C is a chemical radical) (ii) By applying the Steady State Approximation determine the overall order of the reaction. (...
*Thursday, July 30, 2015 by jay*

**science**

cite samples of lesson plan for elementary students
*Sunday, July 26, 2015 by tina*

**Elementary statistics **

Scores on an English test are normally distributed with a mean of 78% and a standard deviation of 4.5%. Find the value of the first quartile.
*Monday, July 20, 2015 by Lizzy*

**Elementary Statistics **

The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.39 inches and a standard deviation of 0.04 inches. If 500 pencils are selected how many would you expect to have a diameter more than 0.33 inches?
*Monday, July 20, 2015 by Lizzy*

**English**

4. You applied for teaching. Would you let us know why you decided to be a teacher? - When I was an elementary school student, my homeroom teacher liked me very much. I also studied hard to please my teacher. So, my future job became teaching at school. I like teaching kids at...
*Monday, July 13, 2015 by rfvv*

**Finite Math **

State and perform the next elementary row operations that should be performed to put the matrix in diagonal form 1 2 -3 3 2 -4 6 8 3 6 15 12
*Thursday, July 2, 2015 by Krystal*

**Elementary Statistic**

twenty-five percent of all death are caused by diseases of the heart Ischemic heart disease accounts for 16.4% of all death and heart failure for 2.3% choose one death at random. What is the probability that it is from ischemic heart disease given that it was from heart ...
*Wednesday, June 24, 2015 by Angela*

**Math**

Of the 597 students at Duzine Elementary School, 19% have a computer at home. About how many students have a computer at home?
*Wednesday, June 17, 2015 by Anonymous*

**Elementary Statistics**

determine whether the given is a statistics or parameter. 1.) There are 50 capitol states in the US. Answer: Parameter 2.) Among the flights included in the sample of flights in Data set 15 in Appendix B, 21% arrived late. Answer: Statistics
*Tuesday, May 26, 2015 by Mar*

**Calculus**

What is the solution to the following system of equations -2x+3y+z=5 x+5y+2z=17 To do this, I used elementary operations and isolated x to get 13y+5z=37. Is that correct so far? How would I continue?
*Thursday, April 30, 2015 by Sara*

**English**

Is this sentence punctuated correctly? At elementary school, my teacher delighted in handing me worksheets crowded with row upon row of three to five digit long division problems.
*Sunday, April 26, 2015 by Luke*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→∞ (x tan(3/x))
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→∞ x^7e^−x^6 Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim...
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0+ (sinx ln2x)
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (sin^−1 x)/7x Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x...
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (7x−sin 7x)/(7x−tan 7x)
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (e^9x−1−9x)/(x^2)
*Monday, April 20, 2015 by TayB*

**Calc 1**

Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→3 (x^2+3x−18)/(x−3)
*Monday, April 20, 2015 by TayB*

**Elementary Statistics**

10. In a game of “chuck a luck” three dice are rolled. If your number comes up on all three dice you win $3. If your number comes up on two dice you win $2. If your number comes up only once you win $1. If your number doesn’t come up at all you lose $1. a) What ...
*Sunday, April 19, 2015 by Gary*

**Vectors**

What is the nature of intersection of these three planes: 5x+3y-z=11 -2x-7y+10z=2 6x+21y-30z=-6 I know that the answer is two parallel planes and the other one intersecting in a line. my question is how would you know that the first equation intersects in a line? Would you use...
*Sunday, April 19, 2015 by Sara*

**Math**

Put this matrix in Reduced Row Echelon Form. Make sure that you list the Elementary Row Operations that you use and show every step in order to solve this. [ 1 2 1 -2 -3 1 3 5 0]
*Thursday, April 9, 2015 by Michael*

**Math**

Put this matrix in Reduced Row Echelon Form. Make sure that you list the Elementary Row Operations that you use and show every step in order to solve this. [ 1 2 1 -2 -3 1 3 5 0]
*Wednesday, April 8, 2015 by Michael*

**Elementary Algebra**

Walk 1or2 miles. Check the time before starting your walk and at the end of your walk. Determine your waling rate in minutes per mile. Create an equation that describes the rate. walk 1 mile time 6:00 to 7:30 so this would be 90minutes and that is where I get stuck at.
*Saturday, April 4, 2015 by Lavery*

**Chemistry physics**

3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge
*Tuesday, March 31, 2015 by Bill*

**Physics**

If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge
*Tuesday, March 31, 2015 by Bill*

**Elementary Algebra**

Each serving of Planters Lightly salted peanuts contains 95 mg of sodium. This is 50% of the sodium content in each serving of planters. How many milligrams are in a serving of the dry roasted peanuts? I am not sure where to start about solving this problem I need help.
*Wednesday, March 25, 2015 by Lavery*

**Math **

Directions: Use the following matrix to perform the elementary row operations sequentially. A=[3 2 |8] [5 2 |12] 1.) (1/3) R1 From the original matrix 2.) -5R1+R R2 From matrix in question 1.
*Monday, March 23, 2015 by Holly*

**chemistry**

1)Thallium (I) is oxidized by cerium (IV) as follows: Tl+ + 2 Ce+4 Tl+3 + 2 Ce+3 The elementary steps, in the presence of Mn(II), are as follows: Step 1 Ce+4 + Mn+2 --- Ce+3 + Mn+ Step 2 Ce+4 + Mn+3 ---- Ce+3 + Mn+4 Step 3 Tl+ + Mn+4 ----- Tl+3 + Mn+2 (a) Identify the...
*Sunday, March 22, 2015 by treasa*

**chemistry**

I need an example of an elementary reaction to go with the definition An elementary reaction is a reaction in which reactants are converted to products in a single step.
*Monday, March 16, 2015 by alyssa *

**Chemistry**

for a project i had to make cards with words and then an example of those words, and i've done almost all of them, but I have a few words I need examples for activation energy activation energy activated complex elementary reaction
*Monday, March 16, 2015 by Alyssa*

**Chemistry **

I need definitions for chemistry and I can't come up with any heterogeneous reaction homogeneous reaction activation energy activation energy activated complex elementary reaction
*Monday, March 16, 2015 by Al*

**Account **

Howie Stars produces starts for elementary teachers to reward their students. Howie Stars' trial balance on June 1 follows "HOWIE STARS Trial Balance June 1, 2012" Balance Account Title Debit Credit Cash $14,000 Accounts receivable 155,000 Inventories: Materials ...
*Sunday, March 15, 2015 by Shraddhya Dubey*

**english confused **

ive read this story over five times and still dont really get the meaning of bia's dream help plzz RED MESA, Arizona (Achieve3000, July 21, 2007). Although she grew up as a Diné, the term Navajo members use to describe their nation, young Andrethia Bia measured her ...
*Thursday, March 12, 2015 by jimm*

**language arts**

WEDNESDAY March 11, 2015 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...
*Wednesday, March 11, 2015 by hello*

**Elementary Statistics **

"Scores on the Wechsler IQ test approximate a normal curve with a mean of 100 and a standard deviation of 15. b. What percentage of IQ scores are below 74?" I've been working at this for a while now, but when I solve for the z-score, I keep getting a negative ...
*Tuesday, March 10, 2015 by Nicole*

**tablun elementary school**

the side of a square is 7x - 8y cm. what isthe area?
*Sunday, March 1, 2015 by althea*

**Chemistry**

Even when a mechanism is consistent with the rate law , later experimentation may it to be incorrect or only one of several alternative. As an example, the reaction between hydrogen and iodine has the following rate law: rate=k[H]^3[I]2. The long accepted mechanism proposed a ...
*Saturday, February 28, 2015 by Munavvar*

**Chemistry**

Why is the slowest elementary step "the rate determining step"?
*Monday, February 16, 2015 by Student*

**chemistry**

Based on reaction kinetics, which of the following pairs of reactions and reaction rate equations represent elementary reactions? You may choose more than one reaction. Ti + 2Cl2 = TiCl4 Rate = k[Ti][Cl2] 2SO2 + O2 = 2SO3 Rate = k[O2][SO2]2 Na2S + CuSO4 = CuS + Na2SO4 Rate = k...
*Saturday, February 14, 2015 by danny*

**Math**

Q. Lincoln valley elementary held its annul skating party and 3 fourths of the 400 students came. Of the students who came,1 fifths brought skates from home. How many students rented skates? A. Do I mulpite 400 by 3 fourths than get the answer than mulpite 1 fifths by the ...
*Monday, February 9, 2015 by Destinee*

**Not a subject for course-off topic question**

Hello, I don't know where else to post the question but since this website has many teachers helping students and probably the appropriate place to ask. ----------------------------------------- So today I was just thinking about the past in my life and one thing ...
*Sunday, February 1, 2015 by John Doe*

**elementary differential geometry**

Suppose that all the tangent lines of a regular plane curve pass through some ﬁxed point. Prove that the curve is part of a straight line. Prove the same result if all the normal lines are parallel.
*Saturday, January 31, 2015 by thida*

**english**

School has increased in its difficulty over the years. In the past, kindergarten was carefree; all I had to do was finger paint, crafts, and daily nap-times, which gave me the rest I needed. During my elementary years, math went from adding and subtracting to multiplication ...
*Monday, January 26, 2015 by john234 *

**Math**

Q. As a project,the fifth grade students at Scott Elementary School collected newspaper to recycle. During the first week, they collected 212 pounds of newspapers. For each of the next four weeks,they doubled the previous week's amount of the newspaper collected. What was ...
*Friday, December 5, 2014 by Phoebe*

**5th grade math**

Q. John Brown elementary school Art Club was recycling paper towel tubes for their holiday crafts project. The school enrollment was 629 students. If the art club asked every student to bring 6 empty paper towel tubes to make the project. How many paper tubes will they need? A...
*Thursday, December 4, 2014 by Phoebe*