Wednesday

September 3, 2014

September 3, 2014

Total # Posts: 70,058

**Chemistry **

Calculate the percentage by mass for Carbon in C2H2
*September 3, 2014*

**mathematics**

solve problem using ratio 5:8 in a school are girls and 135 boys how many children are in the school in total.
*September 3, 2014*

**English**

Look through Angelo's telescope you can see saturnalia rings.
*September 3, 2014*

**statistics**

24. Rosalie Friend (2001), and educational psychologist, compared three methods of teaching writing. Students were randomly assigned to three different experimental conditions involving different methods of writing a summary. At the end of the two days of instructions, ...
*September 2, 2014*

**statistics**

24. Rosalie Friend (2001), and educational psychologist, compared three methods of teaching writing. Students were randomly assigned to three different experimental conditions involving different methods of writing a summary. At the end of the two days of instructions, ...
*September 2, 2014*

**Physics**

How much heat must be removed from a 240 g block of copper to lower its temperature from 150°C to 18°C? The specific heat capacity of copper is 0.093 cal/g·C°.
*September 2, 2014*

**math**

Ricky has a total of 64 pennies and quarters in a jar. He has 34 more pennies than quarters. How much money does ricky have in the jar
*September 2, 2014*

**Chemistry**

How many moles of chlorine atoms are present in 4.8x10^20 molecules of carbon tetrachloride?
*September 2, 2014*

**English**

Would the first one be the second sentence?
*September 2, 2014*

**English**

*Yet they all knew where the Chuck-E-Cheese is located. Most have an encyclopedic knowledge of the shops in Co-Op City, or the amusement possibilities of New Rochelle (dubbed “New Roc City”). They also have exact bearings on where to find the nearest McDonald’s...
*September 2, 2014*

**English**

Identify the main ideas of the indicated paragraphs of this article. (Paragraphs with the asterisks are indicated.) My choices are in parentheses. *(Geography is essential to our education.) Not just knowing how to read a map, but at least a basic understanding of where ...
*September 2, 2014*

**6th Grade Math**

Unless there is some extra information about money earned from the savings account, Jacob has -$5 left.
*September 2, 2014*

**English**

*Yet they all knew where the Chuck-E-Cheese is located. Most have an encyclopedic knowledge of the shops in Co-Op City, or the amusement possibilities of New Rochelle (dubbed “New Roc City”). They also have exact bearings on where to find the nearest McDonald’s...
*September 2, 2014*

**English**

Thanks! There's another one too: *(Geography is essential to our education.) Not just knowing how to read a map, but at least a basic understanding of where countries, states and continents are located on a map. Yet the study of our world has many other implications as well:
*September 2, 2014*

**English**

Identify the main ideas of the indicated paragraphs of this article. (Paragraphs with the asterisks are indicated.) My choices are in parentheses. Our pitiful knowledge of geography has been well documented for the last decade. Among the most notable studies was the 2006 Roper...
*September 2, 2014*

**math**

Sarah and Felipe were playing video games. Sarah scored 21,456 points, and Felipe scored 9,087 points. About how many points did Sarah and Felipe score altogether?
*September 2, 2014*

**Math**

Write the numbers: 70 million 16 thousand 90 32 billion 232 thousand
*September 2, 2014*

**Shurley English**

What is an analogy?
*September 2, 2014*

**Math**

Factor the following number to it's prime factor: 40
*September 2, 2014*

**math**

Sarah and Felipe were playing video games. Sarah scored 21,456 points, and Felipe scored 9,087 points. About how many points did Sarah and Felipe score altogether?
*September 2, 2014*

**Algebra2 HELP PLEASE**

I meant 38
*September 2, 2014*

**Algebra2 HELP PLEASE**

So the answer is 8 production rate. So the supervisor would be satisfied then?
*September 2, 2014*

**Algebra2 HELP PLEASE**

ok for the second one Idek what I did. But the answer I got was 2. I am so confused.!!!! HELP
*September 2, 2014*

**Algebra2 HELP PLEASE **

1.) Fuel Efficiency: On Friday, you left for a weekend camping trip with 110 miles on the odometer and 14.5 gallons of gas in the tank of your car. When you returned on Sunday, the odometer read 299 miles and you still had 7.5 gallons of gas left. What was the fuel efficiency ...
*September 2, 2014*

**chemistry**

calculate the mass of a 4.50 m long copper rod that has the diameter of 1.25cm. the density of copper is 8.94 g/ml
*September 2, 2014*

**chemistry**

calculate the mass of a 4.50 m long copper rod that has the diameter of 1.25cm. the density of copper is 8.94 g/ml
*September 2, 2014*

**gr 11 physics**

Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 km away. It takes Amy 40 mins to arrive at school. Bill arrives 20 mins after Amy. How much faster(in meters/second) is Amy's average speed for the entire trip?
*September 2, 2014*

**gr 11 physics**

Oh sorry no it doesnt! Sorry
*September 2, 2014*

**gr 11 physics**

Oh sorry no it doesnt! Sorry
*September 2, 2014*

**gr 11 physics**

Yes it does
*September 2, 2014*

**gr 11 physics**

Why is 2 hours equal to 80km
*September 2, 2014*

**gr 11 physics**

So then would i change 64km/h into meters/seconds
*September 2, 2014*

**gr 11 physics**

Steve traveled the first 2 hours of his journey at 40km/h and the last 3 hours of his journey at 80km/h. What is his average speed of travel for the entire journey?
*September 2, 2014*

**Algebra1**

How to solve c+4=-26 and the answer would be 6,,,,-6,,,,, -4.4 or 3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*September 2, 2014*

**Algebra1**

How to solve c+4=-26 and the answer would be 6,,,,-6,,,,, -4.4 or 3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*September 2, 2014*

**Algebra1**

How to solve c+4=-26 and the answer would be 6,,,,-6,,,,, -4.4 or 3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*September 2, 2014*

**Algebra1**

How to solve c+4=-26 and the answer would be 6,,,,-6,,,,, -4.4 or 3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*September 2, 2014*

**Algebra1**

How to solve c+4=-26 and the answer would be 6,,,,-6,,,,, -4.4 or 3???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*September 2, 2014*

**physic**

A different scaffold that weighs 500N supports two painters, one 500 N and the other 500N . The reading in the left scale is 900N . what is the reading in the right hand scale
*September 2, 2014*

**physic**

A different scaffold that weighs 500N supports two painters, one 500 N and the other 500N . The reading in the left scale is 900N . what is the reading in the right hand scale
*September 2, 2014*

**English; Punctuation**

Do you always put a comma before you use quotation marks, or do you only use a comma before dialogue or a quote? For example: “I know, but just give this CD a chance,” my mom said as she inserted the new CD into the CD player. “It was made by a Christian band ...
*September 2, 2014*

**math**

A real estate agent receives 4 1 % 2 commission on the sale of all property she handles. How much does she receive for a house she sells for $148 500?
*September 2, 2014*

**chemistry**

2) Calculate the following properties of 2,4,6-trichlorophenol (C6H3Cl3O) at 25ºC: - Diffusion coefficient in water (cm2/s) - Henry’s constant [(atm·m3)/mol] - Henry’s constant (dimensionless) Given information: - Universal gas constant (R) = 0.082 atm&...
*September 2, 2014*

**Chemisty**

A 5 μL drop of compound X, a 7 μL drop of compound Y, and a 15 μL of compound Z are placed in a closed container with 5 mL water and 2.5 mL air. The system is equilibrated at 25°C. Determine the fraction of the total X, Y, and Z mass associated with each of ...
*September 2, 2014*

**Precal**

To change to radians multiply it by pi/180.
*September 2, 2014*

**Precal**

Change from degree measure to radian measure in terms of pie -320 degrees
*September 2, 2014*

**Math **

Pythagoren theorem: a= -5 b= -7 c=?
*September 2, 2014*

**convex mirrors**

he focal length of a convex mirror is -20 cm. What is the radius of the curvature?
*September 2, 2014*

**Math**

Find the hypotenuse of the triangle using pythagoren theorem when given the point (4,-3)
*September 1, 2014*

**Phi208 **

What is not an example of a practice according to maclntyre's account
*September 1, 2014*

**Math**

Find the hypotenuse of the triangle using pythagoren theorem when given the points a) (4,-3) b) (2,3)
*September 1, 2014*

**Math**

Thanks!
*September 1, 2014*

**Math**

The initial amount of sugar in fermenting a batch of beer is 5.5 grams. Over time the sugar decreases at a rate of 0.1grams per day. a.What is the amount of sugar that remains after 7 days? 23 days? - I got: 5.5-0.1x= A - 5.5-0.1(7)= 4.8 - 5.5-0.1(23)= 3.2 b. If A represents ...
*September 1, 2014*

**English: Commas**

Do you need to put a comma after the word, "suddenly?" I have the word at the very beginning of a sentence.
*September 1, 2014*

**Hyphens**

I am using the phrase "high energy " as an adjective. Do I need to write it like, "high-energy?"
*September 1, 2014*

**English: Punctuation**

In my composition, I have one sentence that begins with "Therefore" and one sentence that begins with "Eventually." Do I need commas after these words?
*September 1, 2014*

**math**

I need to find the original sale price and the new sale price when thr markdowns percent is 12% and the amount of markdown is $1.20
*September 1, 2014*

**math**

A recipe that makes 4 servings calls for 3/4cups of apple juice and 2/3 cup of cranberry juice.How many cups of juice are there per ?
*September 1, 2014*

**physics**

The brakes on your automobile are capable of creating acceleration of 14 ft/s2. If you are going 66 mi/hr and suddenly see a state trooper, what is the minimum time required to get your car to 55 mi/hr?
*September 1, 2014*

**Ms. Sue**

Ok, thank you.
*September 1, 2014*

**English: Punctuation**

That morning my family and I were sitting in our car, ready to make a trip into town. In the previous sentence, does there need to be a comma after "That morning?" I think there does but I'm not entirely sure.
*September 1, 2014*

**Math**

(9n^4)^(1/2)= 3n??
*September 1, 2014*

**Math**

Simplify. ((3x+6)/(x^2-9))/((6x^2+12x)/(4x+12)) Is it... 2/x(x-3) ??
*September 1, 2014*

**Math**

Simplify. ((2-5m)/(m-9))+((4m-5)/(9-m)) Check this: (-9m+7)/(m-9)
*September 1, 2014*

**Math**

Simplify. 2x-5-(x-8)/(x+4) My answer: (2(x^2+x+6))/(x+4)
*September 1, 2014*

**Writing**

Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it ...
*September 1, 2014*

**Math**

A tank contains a certain amount of water. Each month half of the water in the tank evaporates and an extra liter of water is added. After 5 months, after the litres of water is added, there were 4 litres of water in the tank. How many litres were in the tank originally?
*September 1, 2014*

**war and conflict**

My homework is to find examples and case studies in order to help me use in my exams about war and prejudice. However, I am unable to find useful websites. Please help. War: An example of conflict in summer 2014 is the Gaza Conflict. Problems in this conflict ...
*September 1, 2014*

**phi208**

Gilligan claims that females tend to see relationships as these (Points : 1)
*September 1, 2014*

**Religious education**

Thank you very much. :)
*September 1, 2014*

**Religious education**

My homework is to find examples and case studies in order to help me use in my exams about war and prejudice. However, I am unable to find useful websites. Please help. War: An example of conflict in summer 2014 is the Gaza Conflict. Problems in this conflict include... ...
*September 1, 2014*

**math**

the nth term of a sequence is represented by 3 x 22¨Cn
*September 1, 2014*

**math packet**

11 nickles and 5 dimes
*September 1, 2014*

**English help**

How you evaluate the pied pipers true motives for getting rid of the rats in "the pied piper of Hamelin"? It's an open ended response and this story is so confusing. Need help ASAP!!!
*August 31, 2014*

**chemistry**

a solution of oh negative ions is added to a beaker of pure water 25 degrees celcius to a final concentration of 137 nM calculate the ph of the solution
*August 31, 2014*

**chemistry**

a solution of oh negative ions is added to a beaker of pure water 25 degrees celcius to a final concentration of 137 nM calculate the ph of the solution
*August 31, 2014*

**Math**

Solve the following equations for the variable indicated. Please correct me if I'm wrong! 1. I=Prt for P Answer: I/P=rt 2. Solve C= 2ðr for r. Answer: C/r=2ð
*August 31, 2014*

**Algebra**

Write and then solve the equation for the following. Please correct me if I'm wrong!! 1. If 3x+2x is equal to 15, what is the value of x? Answer: x=3 2. If three times the quantity (4y-2) is equal to 18, what is the value of y? Answer: y=1
*August 31, 2014*

**Math **

Write the algebraic expressions for the following. Please check and correct me if I'm wrong!! 1. 3 less than 5 times a number. Answer: 5x-3 2. 18 fewer than half a number. Answer: 1/2x-18 3. 3 more than the quotient of a number and 2. Answer: x/2+3 4. 4 times the ...
*August 31, 2014*

**physics**

A ball is dropped a high cliff, and two second later another ball was thrown vertically downwards with an initial speed of 30 m/s.How long will it take the second ball to overtake the first?
*August 31, 2014*

**accont**

service revenue earned but unrecorded at june 30 totals RM2000
*August 31, 2014*

**Trigonometry**

A 30foot flagstaff is fixed in the center of a circular tower 40 feet in diameter. From a point in the same horizontal plane as the foot of the tower the angles of elevation of the top of the flagstaff and the top of the tower are found to be 36 and 30 degree respectively. ...
*August 31, 2014*

**physics.**

a cube is on a smooth horizontal force of mass m.a horizontal force is applied at its top.the maximum acceleration of cube without toppling
*August 31, 2014*

**physics : friction**

a man pushes a packing case which has a total mass of 50 kg across a floor at a constant speed of 0.4 m s-1 by exerting a horizontal force of 100 N. (a) what was the resultant force on the case? > F = ma F = 50 * 0 F =0 (b) what was the frictional force acting on the case...
*August 31, 2014*

**physics**

Find the force when two poles to strength 100 and 90 cgs units are placed at a distance to 20 cm a part.
*August 31, 2014*

**Science**

What do you learn in 7th grade science
*August 31, 2014*

**science**

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...
*August 30, 2014*

**Physics**

thank you! that helps so much!I was able to work other questions that were similar to this question thanks to you :) What is in degrees as measured from the positive x in the counter-clockwise angular direction the direction of vector F?
*August 30, 2014*

**Physics**

I know I need to show my work but the problem is that I don't even know where to begin. I am taking an online physics class with a teacher that is not willing to help. So any guidance would be much appreciated. Consider the two vectors: F1: (220N, 41°), F2: (50N, 139&...
*August 30, 2014*

**astronomy 101**

Given that the angular size of Venus is 53ŒŒ'' when the planet is 47000000kmkm from Earth, calculate Venus's diameter (in kilometers).
*August 30, 2014*

**science**

Compute the density in g/cm3 of a piece of metal that has a mass of 0.345 kg and a volume of 59 cm3
*August 30, 2014*

**business**

The Garcia Company’s bonds have a face value of $1,000, will mature in 10 years, and carry a coupon rate of 16 percent. Assume interest payments are made semiannually.
*August 30, 2014*

**Algebra**

thank you!
*August 30, 2014*

**Algebra**

simplify: 12x^2 + 8x ------------- 9x^2 - 4
*August 30, 2014*

**Physics**

A 0.250-kg block of a pure material is heated from 20.0°C to 65.0°C by the addition of 4.35 kJ of energy. Calculate its specific heat and identify the substance of which it is most likely composed.
*August 30, 2014*

**Math**

Last week at a festival, a man sold 5 times as many tie-dyed T-shirts as silk-screened shirts. He sold 210 shirts altogether. How many tie-dyed shirts did he sell?
*August 30, 2014*

**Algebra II**

The perimeter of a triangle is 47 km. the first side is 5 km shorter than twice the second. the third side is 2 km longer than the first. find the length of each side.
*August 30, 2014*

**physics**

A blue ball is thrown upward with an initial speed of 24.1 m/s, from a height of 0.6 meters above the ground. 2.9 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.5 m/s from a height of 31.8 meters above the ground. The force of ...
*August 30, 2014*

**math**

Hi I need help with 5 questions..some of it is confusing to me. I just want to make sure my answers are right. 1.6^-7 x 6^4 6^-3 ; 6^-11 ; 6^-28 ; 6^11 - my answer is 6^-3 2. 7/ 7^5 = 7^-2 (supposed to find the missing value which is the other exponent on top of the 7 that'...
*August 29, 2014*

**physics 12**

A hollow sphere us charged to 14uc .Find the potential(a) at its surface (b) inside the sphere (c) at a distance of 0.2m from the surface.The radius of sphere is 0.3 m
*August 29, 2014*

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