Tuesday
October 21, 2014

Posts by anonymous


Total # Posts: 72,787

counting
My daughter home work wants her to count the animals in each picture and draw the correct number of counters to show how many
September 15, 2014

Chemisty
2
September 15, 2014

Math
A ramp long rises to a platform. The bottom of the platform is from the foot of the ramp. Find , the angle of elevation of the ramp. Round your answer to the nearest tenth of a degree.
September 15, 2014

math
254
September 15, 2014

5th grade math
55555555555555
September 15, 2014

Biology
How are the hydrogen bonds broken during DNA replication? Is it done by the DNA polymerases?
September 15, 2014

World history help
What does the juror token tell us about Greeks justice system? Need help ASAP!!!
September 15, 2014

math
Why is 1 not a prime number?
September 15, 2014

Engish (ESL)
Verb - furnished Subject - material ???
September 15, 2014

Engish (ESL)
The bison's hide furnished material for Indian tepees and robes. What's the subject and the verb?
September 15, 2014

History
Which one?? Which three empires competed for influence in the Balkans? 1. Austria-Hungary 2. Russia 3. ? History - Sierra, Monday, September 15, 2014 at 4:32pm The third one would be Serbia. History - Ms. Sue, Monday, September 15, 2014 at 4:37pm You're wrong, Sierra. The ...
September 15, 2014

Pre-Calculus/Trigonometry
Am I right? Which of the following is the equation of a line that passes through the point (3,2) and is parallel to the y-axis? y = 3 x = 2 y = 2 x = 3 <---
September 15, 2014

Pre-Calculus/Trigonometry
oh okay thanks :)
September 15, 2014

Pre-Calculus/Trigonometry
okay, but i still dont understand on how to solve this
September 15, 2014

Pre-Calculus/Trigonometry
slope intercept form m= y2-y1/ x2-x1
September 15, 2014

Pre-Calculus/Trigonometry
the slopes will be the same?
September 15, 2014

Pre-Calculus/Trigonometry
Help please What is the slope of the line that passes through (1,0) and is parallel to y = 3x + 5?
September 15, 2014

History
Which three empires competed for influence in the Balkans? 1. Austria-Hungary 2. Russia 3. ?
September 15, 2014

physics
What is the ball's rebound speed on its first bounce?
September 15, 2014

Math
It's greater than 700 000 The sum of all it's digits is 14 It has no zeros The hundreds digit is 3
September 15, 2014

Chemistry
never mind it tells me that it is not right. I don't know what I am doing wrong. (6.626*10^-34)(3.00*10^8)/ (500*10^-9)= 3.98*10^-19 so 100/ 3.98*10^-19= 2.52*10^-18
September 15, 2014

Chemistry
2.52*10^-18??? is what I got
September 15, 2014

Chemistry
A 100-watt lightbulb radiates energy at a rate of 100 J/s (The watt, a unit of power, or energy over time, is defined as 1 J/s). If all of the light emitted has a wavelength of 500nm, how many photons are emitted per second? (Assume three significant figures in this calculation.)
September 15, 2014

Chemistry
I got 5.56*10^-45 which doesn't make sense?
September 15, 2014

Chemistry
A laser produces 15.0mW of light. In 3.00hr , the laser emits 4.53×1020 photons. What is the wavelength of the laser?
September 15, 2014

Chemistry
3.5^3
September 15, 2014

Chemistry
how would you find out the mass?
September 15, 2014

Chemistry
A proton in a linear accelerator has a de Broglie wavelength of 115pm. What is the speed of the proton?
September 15, 2014

Chemistry
9.5*10^4?
September 15, 2014

Chemistry
what is the mass of the electron?
September 15, 2014

Chemistry
An electron has an uncertainty in its position of 611pm. What is the uncertainty in its velocity?
September 15, 2014

Organich Lab Help Please!!!!!!!!
The second part of the question I found that aqueous phase is still the bottom layer based on the density of each. I just want to make sure I'm on the right track. Thanks!
September 15, 2014

Organich Lab Help Please!!!!!!!!
You use 100 ml ethylchloride (density 0.92 g/ml) to extract 25 ml ethylene bromohydrin (density 2.41 g/ml) mixed with 100 ml of water. Is the aqueous layer the lower or the upper layer. How could you easily test this. You dissolve sodium chloride 40g. in the above mixture. ...
September 15, 2014

Biology
Are a replication fork and an origin of replication the same thing?
September 15, 2014

7th grade math
You should do 1/2 * 3/4, not the other way around.
September 15, 2014

history
4. The Puritans viewed themselves as creating A. an ideal Christian community to be copied by others B. a prestigious university for training ministers C. an English colony identical to the lifestyle in England D. a haven for persecuted religious minorities I think its A? The ...
September 15, 2014

Math
But if I plot f(x) = -3x + 5 and -f(x) = 3x - 5, it does not give me the reflection.
September 15, 2014

Math
If I want to reflect f(x) = -3x + 5 over the x-axis, would the new equation be f(x) = 3x - 5? Or is it -f(-x) = 3x - 5?
September 15, 2014

history
The established church in the Southern colonies was? the Anglican Church right? The most important cash crop in colonial Virginia was? tobacco right? Roger Williams believed wholeheartedly in A. extermination of all Native Americans B. complete separation of church and state C...
September 15, 2014

history
what was the puritan ultimate source of authority? it was the bible right?
September 15, 2014

college algebra
An executive invests $29,000, some at 8% and some at 4% annual interest. If he receives an annual return of $1,680, how much is invested at each rate?
September 15, 2014

general knowledge
How to write 9 september 2014 in 5 letters without using numbers..?
September 15, 2014

Settlement
One goal the French and Spanish colonists had in common in the New World was Answer developing the fur trade. establishing stable governments. converting the Native Americans. searching for gold and other precious metals.
September 15, 2014

Organich Lab Help Please!!!!!!!!
a) You use 100 ml ethylchloride (density 0.92 g/ml) to extract 25 ml ethylene bromohydrin (density 2.41 g/ml) mixed with 100 ml. Is the aqueous layer the lower or the upper layer. How could you easily test this. ----- Ethylchloride is less dense so it is the top layer Ethylene...
September 15, 2014

statistics
AAA reports that the average age of a car on U.S. roads in recent years has risen to 7.5 years. Suppose that the distribution of the age of automobiles assumes a mound shaped distribution. If 99.7% of the ages are between 1 year and 14 years, what is the value of the standard ...
September 14, 2014

Math
How do you write the transformation of a quadratic function two units right from its parent function? Is it y = (x + 2)^2?
September 14, 2014

Math
A Social Security number has seven digits. How many Social Security numbers are possible?
September 14, 2014

Math
An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam? In how many ways may the exam be completed if a penalty is imposed for each incorrect answer, so that a student may leave some...
September 14, 2014

Quick math help
An angle with a measure of 89.9 degrees... Would it be a right or an acute angle?
September 14, 2014

physics
h
September 14, 2014

physics
While riding in a hot air balloon, which is steadily descending at a speed of 1.39 m/s, you accidentally drop your cell phone. (a) After 4.00 s, what is the speed of the cell phone? (b) How far is the cell phone below the balloon after this time? d = m (c) What are your ...
September 14, 2014

Physics Help
A crane is used to lift air conditioning units to the top of a 5-story building. Each story is 3.5 m high. The crane accelerates the units while lifting the units past the first story and then lifts them at a constant velocity past the second through fourth stories. it hen ...
September 14, 2014

Chemistry Urgent Help and Check Please!
a) You use 100 ml ethylchloride (density 0.92 g/ml) to extract 25 ml ethylene bromohydrin (density 2.41 g/ml) mixed with 100 ml. Is the aqueous layer the lower or the upper layer. How could you easily test this. ----- Ethylchloride is less dense so it is the top layer Ethylene...
September 14, 2014

Physics Help Urgent
On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to stretch. The cord slows you to a stop as it stretches, then pulls you back upwards. When the cord is no longer pulling on you, you are moving ...
September 14, 2014

physics
At a point P, the electric field is 78 N/C at 51° counter-clockwise from the positive x axis. A particle of mass 4.7 kg and charge -0.11 C is located at P. Find the direction of the force on the particle: ___ degrees counter-clockwise from the positive x axis the direction...
September 14, 2014

chemistry
2 HI(g)--><--H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.248 M. Calculate the concentration of HI in the equilibrium mixture. M. Please help! I have no ...
September 14, 2014

physics
It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit Mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. Astronomers know that many Martian rocks have come to Earth ...
September 14, 2014

statistics
You have just completed a round trip to New York and back by car. The one way distance traveled is 210 miles. If your average speed traveling to New York was 70 miles per hour and your average speed returning to Baltimore was 50 miles per hour (heavy traffic) what was your ...
September 14, 2014

Geometry
If you live in Australia ,then you have been surfing. Is it a true conditional statement?
September 14, 2014

statistics
You have just completed a round trip to New York and back by car. The one way distance traveled is 210 miles. If your average speed traveling to New York was 70 miles per hour and your average speed returning to Baltimore was 50 miles per hour (heavy traffic) what was your ...
September 14, 2014

Physics Help
On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to stretch. The cord slows you to a stop as it stretches, then pulls you back upwards. When the cord is no longer pulling on you, you are moving ...
September 14, 2014

English help
I need help coming up with a personal response to the story "The Stealing Thors Hammer." I don't know how to put it. It must have as comment, interpretation, evaluation etc.
September 14, 2014

Physics
A 47.0-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 15.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 5.00 ms, what is the magnitude of the average acceleration of the ball during this time interval?
September 14, 2014

Organic Chem Help
You use 100 ml ethylchloride (density 0.92 g/ml) to extract 25 ml ethylene bromohydrin (density 2.41 g/ml) mixed with 100 ml. Is the aqueous layer the lower or the upper layer. How could you easily test this. ----- Ethylchloride is less dense so it is the top layer Ethylene ...
September 14, 2014

math
(12^5)^3 = 12 ( I have to find the exponent) my answer is 15 for the exponent
September 14, 2014

Math
Use distributive property and simplify the expression. 4 + 2(3x - 1) + 9 - 6x + 15 - 5x + 14 - 3x + 14 - 6x + 11 *my answer* I wanna make sure my answer is right. 3.82e+7 (there is no multiple choice) my answer is 38200000
September 14, 2014

Chemistry Urgent Help Please!
If caffeine is soluble in hot benzene but insoluble in hot petroleum ether, how could you use this information to design a crystallization procedure?
September 14, 2014

Math!
1) What is the value of 19 + 5a^4 + 3b^2 when a = 2 and b = -4? (this is not a multiple choice question) but my answer is 147. 2)Combine the like terms to simplify the expression: 4 + 7xy^2 + 5y^3 + 10x -4xy^2 - 8x - 4y^3 + 9 - y^6 + 3x^2y^2 + 10x + 13 - y^3 + 3xy^2 + 2x + 13...
September 14, 2014

physics
Two cars A & B are coming closer to one another with speed 36 km/h and 72 km/h Separated by a distance 1500 m calculate : 1 . time interval after which two car meet . 2 . if acceleration of car A is 2m/s2 then calculate time interval after which car A & B Will meet. 3.if ...
September 14, 2014

physics
A train is moving parallel and adjacent to a highway with a constant speed of 24 m/s. Initially a car is 48 m behind the train, traveling in the same direction as the train at 35 m/s and accelerating at 3 m/s 2 . What is the speed of the car just as it passes the train?
September 14, 2014

math
360
September 14, 2014

Chemistry Urgent Help Please!
You use 100 ml ethylchloride (density 0.92 g/ml) to extract 25 ml ethylene bromohydrin (density 2.41 g/ml) mixed with 100 ml. Is the aqueous layer the lower or the upper layer. How could you easily test this. You dissolve sodium chloride 40g. in the above mixture. Assuming the...
September 14, 2014

Chemistry
2.91*10^6?
September 13, 2014

Chemistry
What is the velocity of an electron that has a de Broglie wavelength approximately the length of a chemical bond? Assume this length to be 2.5×10−10m .
September 13, 2014

Math
What is the parent function of h(x) = -x^2? Is it h(x) = x^2 or h(x) = -x^2? How can I describe h(x) = -x^3 as a transformation of the parent function of a cubic function? Do I just say that it is a reflection, or is there a way of saying it with numbers, as in h(x) = x^3 - 4?
September 13, 2014

math
2.Calculate the growth rate of Asset J dividends, we have to assume that future dividend payments will grow at a constant rate into the future forever. This constant rate can be estimated by calculating the average growth rate from the past dividends. Calculate Asset J’s ...
September 13, 2014

HISTORY
9-10. Since almost all Native American tribes were ,_______________ much of our information on their culture comes from the writings and stories of ___________________________. A. non-literate B. stupid C. Christians D. Muslims E. traders and missionaries F. All of the above I...
September 13, 2014

chemestry
How many molecules (not moles) of NH3\rm NH_3 are produced from 8.21×10−4gg of H2\rm H_2
September 13, 2014

HISTORY
15-20. Put the following events in chronological order, with A for the first to occur and G for the last to occur. g The “Pilgrims” land at Plymouth Rock, Massachusetts F Defeat of the Spanish Armada D Jacques Cartier leads the first French effort to colonize the New...
September 13, 2014

HISTORY
True False Columbus first sighted land in the New World near Newfoundland. I would say false because wasn't John Cabot the one to discover Newfoundland? Columbus was a devout adherent of A. Sunni Islam B. Hinayana Buddhism C. Orthodox Judaism D. Roman Catholicism E. ...
September 13, 2014

HISTORY
European overseas commercial expansion was aided by A.advances in shipbuilding and navigation B.the centralized power of nation-states C.European desires for wealth through trade D.the desire for alternative trade routes to bypass the Ottomans E.All of the above F. None of the...
September 13, 2014

Science
what is spectral broadening
September 13, 2014

statistics
A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 13 hours, with a standard deviation of 2.5 hours. It is desired to estimate the mean viewing time within two-quarter ...
September 13, 2014

math
when you throw up a cricket ball foot ball tennis ball and a basket ball which will go to a maximum height
September 13, 2014

engineering science
An object is kept in equilibrium on an incline by means of supporting force, which is at an angle of 30 degrees o the inclined. The weight of the obbject is 500N. The incline forms an angle of 45 degrees with the horizontal. The coefficent of the friction between the surfaces ...
September 13, 2014

maths
Ted recieved his pocket money He spent: 3/5 on games 1/10 on magazines What fraction of his pocket money is left? I dont understand how to do this question. Please help
September 13, 2014

maths
Thank you so much. I understand your method. Thank you again:)
September 13, 2014

maths
Debra recieved her £15 pocket money. She spent: 1/3 on magazines 2/5 on a necklace How much did she have left? My answer 1/3 of 15 is 5 2/5 of 5 is 2 2 pound is left Am I correct?
September 13, 2014

History
Discuss the causes of French Revolution of 1789
September 13, 2014

HISTORY
The most likely place of origin for Native Americans is A. Atlantis B. Asia C. Israel D. Polynesia E. Mars F. All of the above I would say central Asia, correct?
September 13, 2014

HISTORY
True or False Native American cultures generally had no concept of private property. I'm not sure whether to say true or false but I want to say false because Native Americans were aware of private property, they just weren't obsessive and greedy with it like the ...
September 13, 2014

HISTORY
15-20. Put the following events in chronological order, with A for the first to occur and G for the last to occur. g The “Pilgrims” land at Plymouth Rock, Massachusetts F Defeat of the Spanish Armada D Jacques Cartier leads the first French effort to colonize the New...
September 13, 2014

physics
A girl delivering newspapers covers her route by traveling 2.50 blocks west, 3.50 blocks north, and then 5.50 blocks east.
September 12, 2014

In Response to Previous Math Question
What parent function describes the set (-1, -1), (0, 0), (1, -1) (-2, -8), (2, -8)? So should I write f(x) = x^2 or f(x) = -x^2 for the parent function?
September 12, 2014

Pre-Calculus/Trigonmetry
Thank you, Damon
September 12, 2014

Pre-Calculus/Trigonmetry
Write the equation of the line that is parallel to the x-axis and goes through the point (1,4).
September 12, 2014

Chemistry
dfsdf
September 12, 2014

Math
What parent function describes the set (-1, -1), (0, 0), (1, -1) (-2, -8), (2, -8)?
September 12, 2014

English
Can you put this sentence into completely every word in present tense and still make this sentence make sense. Humans are never satisfied
September 12, 2014

Math
10
September 12, 2014

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