Monday

October 24, 2016
**math**

Tony had an equal number cranberry bars and walnut bars. He gave away 66 cranberry bars. He then had 4 times as many walnut bars as cranberry bars left. How many bars did he have at first?

*Monday, September 19, 2016 by Lillianna*

**History**

Which of the following is the purpose of the North Atlantic Treaty Organazation? A.) Econimic Aid B.) Open Borders C.)Sea Patrolling D.) Common Defense Is it B?

*Monday, September 19, 2016 by Redneck*

**Math**

A bag contains 7 white, 15 blue, 14 red, 10 yellow, and 4 green marbles. What is the probability of selecting a white marble first and a green marble second?

*Monday, September 19, 2016 by Tyler *

**Science**

A rock is held steady over a cliff and dropped. 1.1 seconds later, another rock is thrown straight down at a speed of 12.1 m/s, and hits the first rock. How far have the rocks dropped before they collide? How long is the first rock in the air before it gets hits by the second ...

*Monday, September 19, 2016 by Gabriel*

**Influential Ideas and Events Quiz( Check Answers)**

(The sign "*" means that's my answer I chose for the question) 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...

*Monday, September 19, 2016 by Unknown*

**chem**

If you were asked to convert 25 cg to the unit hg, which of the following would be the first fraction used in the conversion? 1 hg/10^2 10^2/1hg 10^2 hg/ 1cg 10^-2 g/1 cg

*Monday, September 19, 2016 by Sarah*

**math **

For the following two numbers, find two factors of the first number such that their product is the first number and their sum is the second number. 60, 23

*Monday, September 19, 2016 by baba*

**Math**

What is the sum of the first 60 odd numbers?

*Monday, September 19, 2016 by Lola *

**English**

1. In which of the following selections is point of view used to highlight contradictions in what is being described? A) "Aztec Creation story" B) "Day of the Butterfly" C) "At the Tourist Centre in boston"** D) "Two Bodies" 2. Which of ...

*Monday, September 19, 2016 by Starcatcher*

**Science **

A bus travels first 20 km in 1 hour next 20 km in half an hour and next 20 km in 1 hour

*Monday, September 19, 2016 by Vasu *

**Math 115**

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 4 miles per hour for 30 minutes. You rest for 10 minutes, and then you ...

*Monday, September 19, 2016 by Daniela *

**math**

find the image (0,0) after two reflections first across y=3 and then across X-axis

*Sunday, September 18, 2016 by dee*

**Chemistry**

How do i calculate these and express the answers in significant digits? 2.865 x 10^4m x 1.47 x 10^3 8.071 cm^2/ 4.216 1.142 x 10^-8 mm^2 / 8.5 x 10^-4 mm i tried the first one and got 4212. but i don't know if it's right

*Sunday, September 18, 2016 by Holfbrincl*

**math**

Sarah and Joe are seeking to join a gym. Sarah saw on television that Great Gym is offering membership at $19.50 per month, plus a one-time registration fee of $59. Joe plans to join Wacky Workout World because Wacky Workout World only charges $9.50 per month, plus a one-time ...

*Sunday, September 18, 2016 by abdullatif*

**Calculus III**

Topic: Quadric surfaces. I have two homework problems, and they are quite a doozy for me. So the point is, I am given details of a quadric surface on the Cartesian coordinate system, and thus have to use the data to construct an equation through it. ====================== Find...

*Sunday, September 18, 2016 by Justin*

**Math **

A 14 inch board is to be cut into 3 pieces so that the second piece is twice as long as the first piece and the third piece is 4 times as long as the first piece. If x represents the length of the first piece find the lengths of all three pieces

*Sunday, September 18, 2016 by Anonymous*

**HISTORY**

1. Scientists classify native people living in the Americas as having lived during one of four time periods. Which shows the correct order in which these time periods occurred? (1 point) Woodland, Mississippian, Paleo-Indian, Archaic Mississippian, Paleo-Indian, Woodland, ...

*Sunday, September 18, 2016 by FAM I NEED HELP*

**mathematical physics**

An unbiased coin is tossed three times. If A is the event that a head appears on each of the first two tosses,B is the event that a tail occurs on the third toss and C is the event that exactly two tails appear in the three tosses,show that: i) Events A and B are independent. ...

*Sunday, September 18, 2016 by gourav bhardwaj*

**Maths**

Dave takes out a 27-year mortgage of 200000 dollars for his new house. Dave gets an interest rate of 14.4 percent compounded monthly. He agrees to make equal monthly payments, the first coming in one month. After making the 70th payment, Dave wants to buy a boat, so he wants ...

*Sunday, September 18, 2016 by Tung*

**Algebra**

A phone company charges a monthly rate of 10 dollars for the first 50 text messages and charges $0.05 for every text message after the first 50 messages Write an equation in two variables that represent the monthly cost of text message services y=0.5x+10

*Saturday, September 17, 2016 by Anonymous*

**American Gov.**

I'm having trouble finding the answers to these questions (the answers should be in order from the article, it's just not clarifiable. Also, I put ****** .... ***** to show where the answers may be that I think is right, but I'm not sure)... 2. How does James ...

*Saturday, September 17, 2016 by Dina*

**MATH**

Dave takes out a 24-year mortgage of 210,000 dollars for his new house. Dave gets an interest rate of 13.2 present compounded monthly. He agreed to make equal monthly payment, the first coming in one month. After making the 68th payment, Dave wants to buy a boat, so he wants ...

*Saturday, September 17, 2016 by TT*

**College Algebra **

Create a piecewise function of the following scenario where Upper D left-parenthesis t right-parenthesis is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 3 miles per hour for 25 minutes. You ...

*Saturday, September 17, 2016 by megan*

**SS**

who are the first nations...Canada

*Friday, September 16, 2016 by Leila*

**MATH**

Sarah and Joe are seeking to join a gym. Sarah saw on television that Great Gym is offering membership at $19.50 per month, plus a one-time registration fee of $59. Joe plans to join Wacky Workout World because Wacky Workout World only charges $9.50 per month, plus a one-time ...

*Friday, September 16, 2016 by abdullatif*

**Article Annotations/English (Help!)**

I am going to be graded on the annotations for the article "Free the Elephants and Orcas in Captivity [Editorial]" by the Editors. However, I don't have good annotations for the author's main idea/argument, at least two supporting details and the conclusion. ...

*Friday, September 16, 2016 by Victoria *

**maths**

The ration of prices of two horses was 16:23.Two years later when the price of the first has risen by 10% and that of the second by rs.477, the ratio of their prices becomes 11:20. Find the original prices of the two horses.

*Friday, September 16, 2016 by Asha*

**Math**

When Roberto got a puppy from the shelter it wieghed about 11 pounds. The puppy gained 40% of its original weight in the first month that Roberto had it. How much did the puppy weigh after the first month

*Friday, September 16, 2016 by Kamryn*

**Physics**

Negative charge -Q is distributed uniformly around a quarter-circle of radius a that lies in the first quadrant, with the center of the curvature at the origin. Fine the x and y components of the net electric field at the origin.

*Friday, September 16, 2016 by Ayaka *

**math**

Jeremy takes out a 30-year mortgage of 220000 dollars at an annual interest rate of 7 percent compounded monthly, with the first payment due in one month. How much does he owe on the loan immediately after the 87th payment? I have tried 204311.1024, but not successful

*Friday, September 16, 2016 by Karen*

**Math **

A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B, at which time he coasts with constant velocity. ...

*Thursday, September 15, 2016 by Anonymous *

**nddu**

a bar on a hinge starts from rest and rotates with an angular acceleration α = 10 + 6t, where α is in rad/s and t is in seconds. determine the angle in radians through which the bar turns in the first 4.00s

*Thursday, September 15, 2016 by walid ismael*

**Math**

A and B had some paper clips. A gave 40% of his clips to B. B's collection of paper clips rose by 305 to 260. How many paper clips does A had at first.

*Thursday, September 15, 2016 by Tj*

**Maths**

24 cats line up for breakfast. the first cat eats one fish, the second cat eats two fish, and so on, with each cat eating one more fish than the one before it. How many fish are eaten in total?

*Thursday, September 15, 2016 by Anonymous*

**Math**

A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B, at which time he coasts with constant velocity. ...

*Thursday, September 15, 2016 by Anonymous *

**History**

Please check my answers. Thank you! The colonies of New York, Pennsylvania, New Jersey, and Delaware were all part of which colonial region? Eastern Middle* New England Southern Question 2 (Multiple Choice Worth 4 points) (01.06 LC) Who would have written a secondary source ...

*Thursday, September 15, 2016 by Anonymous*

**math**

Sarah and Joe are seeking to join a gym. Sarah saw on television that Great Gym is offering membership at $19.50 per month, plus a one-time registration fee of $59. Joe plans to join Wacky Workout World because Wacky Workout World only charges $9.50 per month, plus a one-time ...

*Thursday, September 15, 2016 by abdullatif*

**math**

Sarah and Joe are seeking to join a gym. Sarah saw on television that Great Gym is offering membership at $19.50 per month, plus a one-time registration fee of $59. Joe plans to join Wacky Workout World because Wacky Workout World only charges $9.50 per month, plus a one-time ...

*Thursday, September 15, 2016 by abdullatif*

**Technology**

To indent the first line of a paragraph, which key should you use? A. Shift key B. Tab key ** C. Enter key D. Space key The _______ key is used to create spaces between lines within a document. A. Enter ** B. Tab C. Shift D. Ctrl

*Thursday, September 15, 2016 by Lili*

**Science**

Please help me with my sciene? Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (...

*Thursday, September 15, 2016 by eannaL*

** math**

A farmer has 1 hectare of land.one half of the land was used for planting Oranges, onw third of the remainder was used for planting mangoes while plantain was planted on the rest. 1.express thw area of land used for mangoes as a fraction of that used for plantain 2.if a ...

*Thursday, September 15, 2016 by Richie*

**Maths**

A can do work alone in 15 days whereas B can destroy entire work in 20 days. They are working on alternate days with a working on the first day, B working on the second day, then how many days will work completed?

*Thursday, September 15, 2016 by Hansa Bokade*

**math**

Profits and losses for first quarter are: January: $6000 (profit) February: $2000 (loss) March : $5500 (loss) Translate the company's performance for the first quarter into a mathematical statement

*Thursday, September 15, 2016 by sica*

**Math**

24 dogs line up for breakfast. The first cat eats one fish, the second cat eats two fish, and so on, with each cat eating one more fish than the one before it. How many fish are eaten in total.

*Thursday, September 15, 2016 by Maria*

**math**

Profits and losses for first quarter are: January: $6000 (profit) February: $2000 (loss) March : $5500 (loss) Translate the company's performance for the first quarter into a mathematical statement

*Thursday, September 15, 2016 by sica*

**Accounting**

In its first month of operation, Kuhlman Company purchased 130 units of inventory for $6, then 230 units for $7, and finally 170 units for $8. At the end of the month, 200 units remained. Compute the amount of phantom profit that would result if the company used FIFO rather ...

*Thursday, September 15, 2016 by Ann*

**English**

Once upon a time there was a knight who lived in a little castle on the edge of the forest of Life. One day this knight looked in the mirror and saw that he was a White Knight. "Lo!" he cried. "I am a White Knight and therefore represent good. I am the champion ...

*Wednesday, September 14, 2016 by Kim*

**math**

What is the smallest of three consecutive integers if the sum of the smaller two integers is equal to 177 less than four times the largest? Note: Consecutive integers are integers that come one after the other. For example: -3, -2 and -1 or 14, 15 and 16. Therefore, if the ...

*Wednesday, September 14, 2016 by Joshua pouncy*

**math**

What is the smallest of three consecutive integers if the sum of the smaller two integers is equal to 177 less than four times the largest? Note: Consecutive integers are integers that come one after the other. For example: -3, -2 and -1 or 14, 15 and 16. Therefore, if the ...

*Wednesday, September 14, 2016 by Madison Joe*

**Engineering/Physics **

The space shuttle fleet was designed with two booster stages. If the first stage provides a thrust of 5.25 Mega-newtons and the space shuttle has a mass of 4,530,000 pound-mass, what is the acceleration of the spacecraft in miles per hour squared?

*Wednesday, September 14, 2016 by Tim*

**Social Studies (CHECK ANSWERS)**

6. Each looked for an easier triumph, and a result less fundamental and and astounding. Both read the same bible and pray to the same god; and each invokes his aid against the other. It may seem strange that any man should dare to ask a just gods assistance in wringing their ...

*Wednesday, September 14, 2016 by Batman*

**Social studies **

7. why were there fewer slaves in the backcountry of the southern colonies than those areas closer to the coast Colonists in the backcountry were primarily self sufficient Backcountry colonists were fundamentally opposed to slavery Colonists in the backcountry were poor and ...

*Wednesday, September 14, 2016 by Mike*

**World History**

Please check this. Thanks! Chandragupta’s construction of roads and harbors most clearly demonstrated the importance of what aspect of governance? Public services Trade regulations******** Redistribution of wealth Centralization of rule What was one characteristic that ...

*Wednesday, September 14, 2016 by NeedingSomeHelpFromMs.Sue and others*

**math**

An arithmetic progression as the same first and second terms as the geometric progression. Find the sum of the first 20 terms of the arithmetic progression. How do I do this? I tried to find the common ratio for G.P. and then substitute it to find the 20th term but, still have...

*Wednesday, September 14, 2016 by lin*

**math**

Collaboration is very powerful! Suppose you have a group of F students, each of whom independently has 55% chance of correctly answering each true/false question on a test with 25 questions. Unfortunately, unlike the first puzzle, this time they don’t know whether they ...

*Wednesday, September 14, 2016 by Dip(back to school 4)*

**Physics**

A particle undergoes two displacements, measured from the positive x-axis, with counterclockwise positive. The first has a magnitude of 11 m and makes an angle of 67 ◦ with the positive x axis. The resultant displacement has a magnitude of 7.7 m directed at an angle of ...

*Wednesday, September 14, 2016 by Gagan*

**mathematical physics**

An unbiased coin is tossed three times. If A is the event that a head appears on each of the first two tosses , B is the event that a tail occurs on the third toss and C is the event that exactly two tails appears in the three tosses, show that : i) Event A and B are ...

*Tuesday, September 13, 2016 by gourav bhardwaj*

**Algebra**

For three consecutive odd integers, the sum of 3 times the first integer and 2 times the second integer is 11 less than 4 times the third integer. What are the three integers? Separate your answers with commas. Ex: 1,2,3

*Tuesday, September 13, 2016 by jamie*

**Math **

-I am 2 digit number. -The digit in the ones place is the first odd prime number -The digit in the tens place is three times the value of the ones place digit I am ____

*Tuesday, September 13, 2016 by Alexis *

**algebra**

For three consecutive odd integers, the sum of 3 times the first integer and 2 times the second integer is 7 less than 4 times the third integer. What are the three integers? Separate your answers with commas. Ex: 1,2,3 Please show work thank you

*Tuesday, September 13, 2016 by merna*

**math**

the ratio of Mark's shirt to edwin's shirts is 3:5. if Mark gives Edwin 7 shirts and the ratio becomes 1:3, how many shirts did each have at first?

*Tuesday, September 13, 2016 by tingga*

**S.S.**

1. For centuries, Arab Muslims had generally welcomed Christian pilgrims to the Holy Land. Which group later took control of the Holy Land, attacked pilgrims, and led Pope Urban to call for the crusades? a. Mongols b. Byzantines c. Seljuk Turks** d. North Africans 2. The ...

*Tuesday, September 13, 2016 by Dani*

**algebra**

For three consecutive odd integers, the sum of 3 times the first integer and 2 times the second integer is 77 less than 4 times the third integer. What are the three integers? Please show work thank of you

*Tuesday, September 13, 2016 by sandy*

**Math**

A machine produces items of which 10% are defective. At the end of each hour, a sample of n items is inspected. If it contains no defectives, the machine is allowed to run for another hour, otherwise the machine is stopped. Find the minimum value of n if the probability that ...

*Tuesday, September 13, 2016 by Desperate student*

**Algebra**

Find two consecutive integers such that 1/5 of the first less 1/9 of the second is 3

*Tuesday, September 13, 2016 by Raquel*

**Algebra**

Find two consecutive integers such that 1/5 of the first less 1/9 pf the secondnis 3

*Tuesday, September 13, 2016 by Raquel*

**math**

Mr. kumar bought a car for $5,000 during the first year, it's value depreciated by 20%. what was the value of the car after one year.

*Tuesday, September 13, 2016 by aroara*

**Physics **

A body is moving with uniform acceleration describe 40m in first 5second and 65m in next 5second. It's initial velocity will be?

*Tuesday, September 13, 2016 by Ak!@#$%^&a *

**Math**

Alex, Bill, and Chen each in turn toss a balanced coin. The first one to throw a head wins. a. What are their respective chances of winning if each tosses only one time? b. What are their respective chances of winning if they continue, given a maximum of two tosses each? c. ...

*Tuesday, September 13, 2016 by Desperate student*

**mathematical physics**

An unbiased coin is tossed three times. If A is the event that a head appears on each of the first two tosses , B is the event that a tail occurs on the third toss and C is the event that exactly two tails appears in the three tosses, show that : i) Event A and B are ...

*Tuesday, September 13, 2016 by gourav bhardwaj*

**Algebra**

A football game lost 6 yards on their first play in Gained 10 yards on the next play how many yards were gained

*Monday, September 12, 2016 by Anonymous*

**math**

A hare is in a 100m race. it starts the race at a particular speed s. halfway through the race, it notices its losing, and increases its speed by an additional 15m/s. Write a formula for how long the hare took on the first half of the race, in terms of s.

*Monday, September 12, 2016 by Mary*

**Government**

The Intolerable Acts led to most directly to which event? A. Stamp Act Congress B. Constitutional Convention C. First Continental Congress D. Second Continental Congress The Framers Included the Supremacy Clause in the Constitution for the purpose of? A. giving the federal ...

*Monday, September 12, 2016 by Irene*

**government **

Please check my answers and correct me if I'm wrong. 1. In what way was the government of ancient Athens different from that of the United States? A. Athens was a direct democracy in which citizens voted on the law themselves *** B. Athens was an in oligarchy rule by the ...

*Monday, September 12, 2016 by Irene*

**math**

The first term of a linear sequence is 7.5 and the fourth term is 3.find the number of terms in the sequence if its sum is -9.

*Monday, September 12, 2016 by naa*

**chemistry**

Why is HCl required in the stomach? A. To transport proteins into the small intestines B. To help absorb other acids in the stomach C. To catalyze the digestion of carbohydrates D. To aid in the digestion of proteins

*Monday, September 12, 2016 by jessie*

**Physics**

When a jam occurs, the vehicle quickly piled up. For example, in highway vehicles drive at a rate of 80 km/h and the distance between the vehicles 80m. The distance here is between the rear end of the vehicle in front to the front end of the rear vehicle. Suppose the average ...

*Monday, September 12, 2016 by Husna*

**Physics**

A ball dropped without initial velocity at the edge of a cliff with a height of 24m. from the base of the cliff at the same time, the second ball is thrown vertically upward, with an initial velocity V_0. V_0 is exactly the same speed of the first ball when it reaches the base...

*Monday, September 12, 2016 by Husna*

**math**

yunny had thrice as many stamps as Zul at first.Then each of them bought an equal number of stamps.In the end , Zul had 36 stamps and Yunny had twice as many stamps as Zul . find the number of stamps Yunny had at first ?

*Monday, September 12, 2016 by kelly lim*

**Algebra**

A light year, the distance light travels in 1 year, is approximately 5.9×10^12 miles.A nearby galaxy is approximately 1.2×10^7 light years from our galaxy. Find the distance in miles between our galaxy and the nearby galaxy. IDK this question. I first thought you ...

*Monday, September 12, 2016 by Sarah *

**math**

Yunny had thrice as many stamps as Zul at first.Then,each of them bought an equal number of stamps.In the end,Zul had 36 stamps and Yunny had twice as many stamps as Zul. Fi nd the number of stamps Yunny had at first?

*Monday, September 12, 2016 by kelly lim*

**PHYSIC**

A BODY MOVING WITH A UNIFORM ACCELERATION. IT TRAVELS 84M IN FIRST 6 SEC AND TRAVEL 180M IN 5 SEC FIND ITS INITIAL VELOCITY AND ACCELERETION

*Sunday, September 11, 2016 by RAHIM*

**Math **

A roller Coaster begins at 90 ft above ground level. Then it descends 105 ft. find the height of the coaster after the first descendent

*Sunday, September 11, 2016 by Miriam *

**Math **

You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average daily increase of $0.30. The next10 days, it has an average daily decrease of $0.45. The last 10 days, it has an average daily increase of $0.25. a...

*Sunday, September 11, 2016 by HELP!*

**Math **

You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average daily increase of $0.30. The next10 days, it has an average daily decrease of $0.45. The last 10 days, it has an average daily increase of $0.25. a...

*Sunday, September 11, 2016 by Darius*

**Mathematics**

If the 8th term of an AP is 36 and the 16th term is 68. Find: a) the first term b) the common difference c) The 20th term

*Sunday, September 11, 2016 by Bex John*

**math**

The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs for a ...

*Sunday, September 11, 2016 by Catlyn*

**Math College**

The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs for a ...

*Sunday, September 11, 2016 by Catlyn*

**Algebra**

The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs for a ...

*Sunday, September 11, 2016 by Shany M*

**math**

mother had $240 more than father at first .after mother spent $260 on a dress father had twice as much money as mother .find the amount of money mother had at first ?

*Sunday, September 11, 2016 by kelly lim*

**Physical Chemistry**

5. Assume you have a 45°C 100g block of gold (cp=0.129J/g°C) and a 150°C , 150g block of silver (cp=0.240J/g°C)(1). You place these blocks into an adiabatic container in thermal contact. a. Calculate the final temperature b. Calculate the heat transferred c. ...

*Saturday, September 10, 2016 by Anonymous*

**Physics**

Once all of the passengers aboard it a train leaves the station and it takes 30 minutes to reach its maximum velocity once at maximum velocity train travels the next 6.30×10^2 km for the next 12.6 hours what is the acceleration of the train leaving the station. Do we ...

*Saturday, September 10, 2016 by Luna*

**math**

three fireworks are fired at the same time. The first one is fired every 64 seconds, the second one is fired every 84 seconds and the third one is fired every 96 seconds. How many seconds after they start will it take until all three fireworks are again fired together?

*Friday, September 9, 2016 by lulu*

**Science**

1. A study was done to find if different tire treads affect the braking distance of an Army Jeep. The same road surface was used each time. Independent variable: Tire Treads Dependent Variable: Braking Distance 2. An experiment was performed to determine how the amount of ...

*Friday, September 9, 2016 by Plz check my answers!*

**Math **

A bag contains 8 white, 6 black and 4 red discs. They are selected at random and not replaced. What is the probability that there is at least one black disc in the first four discs drawn out of the bag?

*Friday, September 9, 2016 by Grace*

**Math**

first five number of: a) Palindromic numbers b) Triangular numbers c) Square numbers

*Friday, September 9, 2016 by Tula*

**math**

Show the functions f= f(z); z=x+iy is nowhere differentiable f(z)=cosy -i siny how do i do this? heres my idea separate them into u(x,y) and v(x,y) then differentiate them and since the first derivative of u(x,y) and v(x,y) does not equal i can deduce that they are ...

*Friday, September 9, 2016 by lim*

**help please?!**

If it takes 30 seconds for a reactant concentration to decrease from 1.0 M to 0.5 M in a first-order chemical reaction, then what is the rate constant for the reaction?

*Friday, September 9, 2016 by jameson*

**Physics**

During the first 50 s a truck traveled at constant speed of 25 m/s. Find the distance that it traveled.

*Thursday, September 8, 2016 by Student*

**Physics**

I need some help on doing the process of the following problem: A body falls freely from rest and half of his fall is done in the last second. Calculate the total time of the fall. I know that the time on the first path is t-1. Also that I can equalize distance equations to ...

*Thursday, September 8, 2016 by Amelie*