Monday
September 1, 2014

Posts by cara


Total # Posts: 120

Math
I need help finding the greatest common factor between these two expressions 3u^3x^5y^8 and 21u^6x^5 I was thinking 7u^3y^8
August 12, 2014

geometry
Alice purchased 30 decorative stone square blocks to create an enclosed rectangular garden area. Each square block measures 1 foot by 1 foot, and one possible arrangement is shown. Including the arrangement shown, in how many distinct ways can Alice arrange the blocks to ...
July 5, 2014

Physics
A ball is thrown straight upward and rises to a maximum height of 20 m above its launch point. At what height above its launch point has the speed of the ball decreased to one-half of its initial value?
January 24, 2014

chemistry
190 grams of potassium iodide is placed in 100 cm3 at 60 degrees Celsius. the solution is cooled to 30 degrees Celsius. how many grams will settle out?
September 19, 2013

MATH HELP
Find the volume of the solid obtained by rotating the region underneath the graph of f(x) = (x)/sqrt(x^3+1) about the y-axis over the interval (1, 10)
July 9, 2013

MATH
Compute the volume of the solid obtained by rotating the region in the first quadrant encolsed by the graphs of the functions y = x^2 and y = sqrt(x) about the y-axis. I keep getting (1/3)pi and can't figure out what I'm doing wrong!
July 9, 2013

Math
How can I find 2 equations with infinitely many solutions? Thanks
March 10, 2013

Math
So for y= 4-2x will be 2y=8-2x?
March 10, 2013

Math
Thank you
March 10, 2013

Math
How can I find 2 equations with infinitely many solutions? Thanks
March 10, 2013

Math-Calculus
Please Help D:. Min/Max Problems 4. Joan has 50ft of interlocking stone available of fencing off a flower garden in the form of a circular sector. Find the radius of the circle that will yield a flower garden with the largest are if Joan uses all the stone.
March 6, 2013

lindy
how many different flags can be made? if there are 5 colors,but the flag must have 3 bands of color
February 9, 2013

math
a chairman and vice-chairman are to be elected from 7 candidates.how many different results are possible ?
February 9, 2013

History
To what extent was the French Revolution caused by new political ideas and influences?
November 28, 2012

Biology
Can you give me an order from 1 to 3 for the following materials, 1 being the best insulator and 3 being the poorest? styrofoam, plastic, aluminum
November 12, 2012

Biology
hi! so I have to make an experiment on heat loss & insulation and so, I did an experiment on which material insulates best against the wind of a fan--styrofoam, plastic or aluminum can. each has hot water in it but the styrofoam took the longest for the hot water to cool ...
November 12, 2012

Biology
so how can I use one of those materials (or just keep the fan) to make an experiment that tests body temperature / insulation / etc?
November 9, 2012

Biology
hi! so for science we have to make an experiment on temperature. we have to base our experiment on the given materials (which include test tubes, aluminum foil, cotton, fan) i chose a fan and I'm thinking of doing an experiment on how the strength of wind affects body ...
November 9, 2012

chemistry
0.450mol of Na2S in 1.50L of solution
October 3, 2012

history
doing an essay for english, i need help writing it. what were the diverse purposes of Englands american colonies and how were those purposes altered in the early years? i just need 3 purposes. if anyone can help i would appreciate it!!!! please!
August 31, 2012

Maths
Sorry I should have added that I was working it out as a derivitive
August 14, 2012

Maths
What steps were taken to get px-2x^2 to be p-4x?? I can't work out what happened to the 'x' after 'p'. I can see that 2x^2 equals 4x though. Any help would be much appreciated :) Thanks
August 14, 2012

History
Almost every one has several wives and especially the Sagamores, since they cannot maintain their power and keep up the number of their dependents. I need to find one more. What does this line mean? keep up the number of dependents unless they have not only many children to ...
February 24, 2012

History
Is there any "European bias or bias" in this article? To obtain the necessaries of life, they (he Indians of Arcadia) endure cold and hunger in an extraordianry manner. During eight or ten days, if the necessity is imposed on them, they will follow the chase in ...
February 24, 2012

History
Thank you!!
February 22, 2012

History
What was the non-importation movement? Is this right? What does no taxation without representation mean? We will only pay taxes that our representatives in a House or Assembly [or similar body] have approved and passed into a law
February 22, 2012

physics
(c) If the wave has amplitude 1.80 m when it speed is 200 m/s, what will be its amplitude where the water is 9.00 m deep?
September 14, 2011

physics
(c) If the wave has amplitude 1.80 m when it speed is 200 m/s, what will be its amplitude where the water is 9.00 m deep?
September 14, 2011

Legal Studies
Hey :) If a juvenile is held in remand does this mean that their being held in custody (a juvenile detention center etc) while their waiting trial (i.e. havent been sentenced yet)? I'm just having some trouble understanding the meaning of remand. Any help on this would be ...
August 16, 2011

physics
A 5.4 cm diameter horizontal pipe gradually narrows to 3.7 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 35.0 kPa and 21.0 kPa, respectively. What is the volume rate of flow?
May 9, 2011

physics
Calculate the force, required of the "deltoid" muscle to hold up the outstretched arm shown in the figure . The total mass of the arm is 2.9 kg.
May 3, 2011

chemistry
Need to do a lab of finding the density of the Molarity of 1M NaCl without having any equipments..How best to do so..A procedure would be appreciated
May 1, 2011

Chemistry
How to determine the energy in J calories and K to convert one pound of ice to steam
May 1, 2011

physics
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 12 in 9.0 . Assume the merry-go-round is a uniform disk of radius 2.2 and has a mass of 650 , and two children (each with a mass of 29 ) sit opposite ...
April 19, 2011

physics
The bolts on the cylinder head of an engine require tightening to a torque of 63 . If the six-sided bolt head is 15 in diameter, estimate the force applied near each of the six points by a socket wrench.
April 19, 2011

physics
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.8 and accelerates at the rate of 7.0 , and it is in contact with the pottery wheel (radius 30.0 ) without slipping. Calculate...
April 19, 2011

physics
A centrifuge accelerates uniformly from rest to 18000 rpm in 180 s. Through how many revolutions did it turn in this time?
April 19, 2011

physics
A grinding wheel 0.28 m in diameter rotates at 2400 rpm. What is the acceleration of a point on the edge of the grinding wheel?
April 19, 2011

physics
A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. The electron and neutrino are emitted at right angles and have momenta of 8.55×10−23 and 5.33×10−23 , respectively. What is the magnitude of the momentum of the ...
April 13, 2011

Physics
A 24 rifle bullet traveling 230 buries itself in a 3.9 pendulum hanging on a 3.0 long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
April 13, 2011

Salisbury University
How long will it take a 480 N motor to lift a 335 kg piano to a sixth-story window 15.0 m above?
April 6, 2011

physics
A 280-g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.30. A force of 22 N compresses the spring 18 cm. If the spring is released from this position, how far ...
April 6, 2011

physics
A 280-g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.30. A force of 22 N compresses the spring 18 cm. If the spring is released from this position, how far ...
April 6, 2011

physics
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 420 N. For the first 13 m the floor is frictionless, and for the next 13 m the coefficient of friction is 0.35. What is the final speed of the crate?
April 6, 2011

physics
A 53 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 13 m, and falls a total of 35 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies.
April 6, 2011

Physics
A novice skier, starting from rest, slides down a frictionless 24.0 incline whose vertical height is 215. How fast is she going when she reaches the bottom?
April 6, 2011

Salisbury University
A spring with 53 hangs vertically next to a ruler. The end of the spring is next to the 21- mark on the ruler. If a 3.0- mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?
April 6, 2011

history
where is the mississippi?
March 31, 2011

language
whatis muttered
March 31, 2011

Math
A 30-m tall flag pole and its shadow form the sides of a right triangle. On this particular day, the sun rises at 6 AM and sets at 6 PM. At what time of the morning (to the nearest minute) will the length of the shadow be exactly 40 m? (Hint: determine the angle of elevation ...
March 27, 2011

College Chemistry
But A stands for concentration..how would i obtain it from the data given?
February 6, 2011

College Chemistry
The following data are obtained for the decomposition of N2O5 at a certain temperature: 2N2O5(g)↔4NO2(g) + O2(g) Time(s) 0 200 400 600 800 N2O5 (atm) 2.10 1.85 1.63 1.43 1.26 Find the rate constant kobs for this first-order decomposition reaction in sec-1 So far I have ...
February 6, 2011

math
Terrance describes the amount of money made based on the # of hours worked by the function rule y= 10h. Given this function how much $ does terrance earn for each hour worked?
February 2, 2011

6th grade
Well...youre trying to find what F equals 1. do 0.4 divided by 2.4 2.take that answer and divide it by six !!!Then that's your answer!!!
December 8, 2010

gammar
A lot of people don’t have wills. Everyone needs a will, but not all people have one. Wills are important because they explain who gets your stuff after you die. You don’t want your things going to someone you don’t want them to go to. My Aunt Martha went to a ...
October 3, 2010

gammar
• Read two of the five paragraphs on the second page of this appendix. Write a brief paragraph of about 150 words in which you do the following: o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence variety and the ...
October 3, 2010

music
what is the function on health insurance? What is the functions of disability insurance? whatis the functions of life insurance?
September 19, 2010

English
is anyone availble
September 19, 2010

grammar
If the interest rates are higher, than insted of spending money for purchasing new things. People go for saving to get interest on their money. With increase in interest rates the purchasing power of people decreases. If something will cost far more than it is worth because ...
September 19, 2010

English
If the interest rates are higher, than insted of spending money for purchasing new things. People go for saving to get interest on their money. With increase in interest rates the purchasing power of people decreases. If something will cost far more than it is worth because ...
September 19, 2010

English
In a total of 200 words, write two paragraphs with about how interest rates affect our purchasing decision. Identify the topic sentence in each by underlining it. I need help with Identifying topic sentence
September 19, 2010

math
ket f(x)=5 x − 4 and g(x) = x^2 − 8. Compute the following functions. 1. f(g(x)) = 2. g(f(x)) = 3. f(f(x)) = 4. g(g(x)) =
September 17, 2010

math
Let h(x) = 3 x2 + 2 x + 1. Let g(x) = 3√{x} + 3. (Note: If there is a nonmathematical symbol in the preceding expression, then your browser doesn't have the math symbol font. Please follow the instructions on the Tools page in Oncourse to install the STIX math fonts...
September 17, 2010

math
let f(x)=5 x − 4 and g(x) = x^2 − 8. Compute the following functions. 1. f(g(x)) = 2. g(f(x)) = 3. f(f(x)) = 4. g(g(x)) =
September 17, 2010

grammar
I think I did this right. The most important and tough goal in an individual’s life is setting up long-term goals to help him/her financially. It can be anything from savings to house building to children’s education or marriage to retirement plan. These are the ...
September 12, 2010

grammar
I need help with highlighting the adverbs and underlining the adjectives. Use at least five adverbs and five adjectives to write a 150- to 300-word review of a movie, sporting event, musical performance, or television show. o Bold each adverb. o Underline each adjective The ...
September 12, 2010

Grammar
I don’t want to buy that.(that,) It’s to(too) expensive. Your welcome.(welcome,) I was happy to help. An evening out(out,) can be a great way to clear one’s mind.(?) I love my car.(car,) It’s interior is so comfortable.
August 29, 2010

Grammar
Their(There) are three kids in the room.(?) We have been married for 20 years, and are(our) relationship is as strong as ever. I’m having trouble with my car. Can you give me some advise(advice)? The diplomats(Diplomats), are doing what they can to restore peace. I know ...
August 29, 2010

Grammar
Thanks you Ms.Sue I am making some corrections am I on the right track. We have been married for 20 years, and are(our) relationship is as strong as ever. I’m(I’am) having trouble with my car. Can you give me some advise? The diplomats, are doing what they can to ...
August 29, 2010

Grammar
Their are three kids in the room. We have been married for 20 years, and are relationship is as strong as ever. I’m having trouble with my car. Can you give me some advise? The diplomats are doing what they can to restore peace. I know it is important, so I will defiantly...
August 29, 2010

math
Choose the better value - 5 kg of birdseed for $6.50 or 8 kg for $10.80?
June 13, 2010

Math
Hi. If you don't have a circumference in the question, how do you find the radius!?
April 26, 2010

Math
2(x+1)/4<3x-2
February 3, 2010

geometry
how do you find the base area of a pyramid?
January 15, 2010

Geometry
What is the formula for finding the surface area of a right rectangular prism? (ex: The base of a right rectangular prism is 10 ft by 7 ft. The height is 3 ft. Find the surface area)
January 14, 2010

social studies people
Who Is the Portuguese nobleman who encouraged exploration and the science of navigation?
December 9, 2009

riddle
which of the following is least like the other? poem novel painting statue flower
December 9, 2009

North & Central America Social Studies
what is the lish region that formed a great arc from the eastern shore of the Mediterranean Sea to the Persian Gulf?
November 23, 2009

world history
How does Incan architecture influence our world today?
October 30, 2009

science
what are the lens called to locate a specimen on a microscope?
October 8, 2009

math
I do not know how to figure out the first one at all. How would i find slope of thesecant. can someone show me step by step how to at least find one of the points?
September 16, 2009

math
I need help with these two questions. Just take out the spaces in this link: h t t p: / /tinypic. c o m/r/nf4fp3/3
September 16, 2009

math
how do i do this problem? find the average rate of change over each interval. 1. f(x)= x^3 + 1 a. [2,3]
September 16, 2009

science
I posted this before but i realized i posted somethings that were wrong. mosquito larvae can tolerate extremely low dissolved oxygen concentrations, yet cannot survive at temperatures above 25 degrees celcius. how might you account for dissolved oxygen concentrations of such a...
September 13, 2009

science lab
I got these results from my dissolved oxygen lab: Temperature Dissolved Oxygen in Celcius (mg/L) 17 5.8 21 5.4 23 5.3 27 5.1 I understand that as the temperature increases the dissolved oxygen concentration decreases but i don't understand how to answer this question: does...
September 13, 2009

science
yes, that is what i meant but i dont understand why the dissolved oxygen concentration would be so low at such a low temperature?
September 13, 2009

science
mosquito larvae can tolerate extremely low dissolved oxygen concentrations, yet cannot survive at temperatures above 25 degrees celcius. how might you aaccoundt for dissolved oxygen concentrations of such a low value at a temperature of 25 degree celcius? I dont understand how...
September 13, 2009

sciece
compare and contrast deer population growth to human population growth in terms of a. predation and competition and b. speed of population response. I don't understand predation in terms of human population growth (can someone explain please)? I do not understand speed of ...
September 9, 2009

science
why do you think the deer population was only 4,00 in 1905 when the carrying capacity of the rangeland could support 30,000 deer or more. I dont understand why a population could be so far below the carrying capacity.
September 8, 2009

Physics ?#2
A ball is dropped from the top of a 53.0m high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 25.0m/s The stone and ball collide part way up. How far above the base of the cliff does this happen in meters?
September 8, 2009

Physics
A helicopter is ascending vertically with a speed of 5.00 m/s. At a height of 120 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? v_0 for the package equals the speed of the helicopter Help?
September 8, 2009

science
by the way, i'm studying ecological succession
September 5, 2009

science
how does a glacier turn into a lake? does it just melt?
September 5, 2009

math
how do I solve this limit (-> is an arrow meaning "heading towards" lim x-> 2 (x-6)^(2/3)
September 3, 2009

math
how would I do this limit?(by the way -> is an arrow( lim x-> 0 (5x^3+8x^2)/ (3x^4 - 16x^2)
September 2, 2009

math
An object dropped from restfrom the top of a tall building falls y=16t^2 feet in the first t seconds. Find the speed of the object at t=3 seconds and confirmalgebraically. The answer is 96 feet/sec but how do i figure it out? cans omeone show me steps? thanks
September 2, 2009

french
also what tense is il rigolait
September 1, 2009

french
which verb tense is this elles aient tort
September 1, 2009

algebra
the algebraic expression dN/dT=riN expresses what? a. biotic potential b. population density c. carrying capacity d. demographic structure e. gause principle is it B?
August 31, 2009

bio- double check answers
the climax community?
August 31, 2009

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