Tuesday
September 2, 2014

Posts by me


Total # Posts: 1,043

4th grade
On the average your heart beats about 72 times per min. At this rate, about how many times will it be 30 days in a year in your lifetime if you live to be 72?
October 11, 2010

physics
A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If the coefficient of friction between the skis and the snow is .08, find the speed of the skier when he reaches the top of the rise. How much work does ...
October 9, 2010

3rd grade math (array)
what is the aweser to this
October 7, 2010

social studies
whats the effect on climate for these listed below?: sun and location wind water mountain
October 6, 2010

math
1,3,6,10,15....
September 30, 2010

9th grade
If a 300 N action force is exerted to the right, the reaction force will be ___.
September 23, 2010

english ")
a sentence that use a context clue and the word serene!!
September 22, 2010

chemistry
6 Mols of NO_2 This is due to there being 8 mols in the theoritical yeild and using the % yeild formula. Sorry I'm not too sure how to explain how I did this.
September 20, 2010

en
Many students mistakenly believe that anything that appears in print must be a fact. Especially in textbooks.
September 12, 2010

biology
WHAT CHARGE ARE PROTONS
September 7, 2010

physical science
A 50 kg crate is lifted to a height of 10 meters.How much potential energy does the crate have begin lifted?
September 7, 2010

Statistics
Using a Z-value of 2.575, the answer is 238.7; or 240 if the answer is in multiple choice form.
September 5, 2010

physics (last problem)help
above answer is not correct
September 3, 2010

M
My hw says explain why the plot u plotted is correct in between 2 n 3 there are 3 lines and you want to get 2 n 1/6 so I plotted the line between 2 and the line after that can u explain how I'm right ???
August 31, 2010

hrm 240
so like some disadvantages for internal would be if you don't have a job at bank you can't get job. and advanges would be if you are a employee you have a good chance for the job.
August 19, 2010

hrm 240
My assignment is write and post a minimum of 350 words checkpoint naming one internal and three externak ways that you could recruit for the job in your final project. What are the advantages and disavantages of each recruit method for the job? I chose bank manager for my ...
August 19, 2010

hrm 240
need help it says to naming one internal and three extrnal ways that i could recruit for the job the job i chose is bank manager and what are the advantages and disadvantages to this is? what i want to know is what is internal and external ways?"
August 19, 2010

medical
i really feel it is d.negligence
August 14, 2010

Math
You have a wire that is 35 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent the total area of the square and the circle. What is the circumference of the ...
August 8, 2010

Algebra
Five-Sixths of a number is -60. What is the number?
August 7, 2010

Pre calc
Haha thank you so much I feel so stupid haha
July 30, 2010

Pre calc
Vector A has magnitude 23 units and direction, counterclockwise from east, of 5.8 degrees. What is the value of its x component to 1 decimal place? Its y component? This problem seems easy enough but I keep getting the wrong answer using the law of sines. Is there another way ...
July 30, 2010

Algebra
Order of opperations or PEMDAS. Parenthasis, exponents, multiply, divide, add, subtract. In that order. For this problem, an exponent is inside of parenthasis. So if you want to solve the parenthasis first, you need to solve the exponent then multiply by 5 and then subtract by...
July 29, 2010

Physics check
A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder? Im sorry I am new to physics this is my first year and...
July 13, 2010

Physics
How far to the nearest tenth of a meter can a runner running at 11 m/s run in the time it takes a rock to fall from rest 90 meters?
July 13, 2010

Physics
Im sorry I am new to physics this is my first year and I still have no idea what to do for this problem. The other two that you answered I had them correct before you answered them and was using it as a check. When I reworked them your way, I got the same answer. However on ...
July 13, 2010

Physics
A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?
July 13, 2010

Physics
A passenger in a helicopter traveling upwards at 19 m/s accidentally drops a package out the window. If it takes 14 seconds to reach the ground, how high to the nearest meter was the helicopter when the package was dropped? To the nearest meter what was the maximum height of ...
July 13, 2010

chemistry
can anyone explain to me this i dont understand it. Radicals Certain groups of different atoms will join together and act as a single unit when forming compounds. Such a group of atoms is called a radical. In the compound calcium carbonate, written CaCO3, the carbonate group ...
July 10, 2010

Physics
A car traveling at 10 m/s accelerates at 2.03 m/s2 for 11 seconds. To the nearest meter how far does it travel? To the nearest tenth of a m/s, what is the final velocity of the car in the previous problem?
July 8, 2010

Physics
A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds in the previous problem?
July 8, 2010

Physics
A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?
July 8, 2010

algebra2
the 2 is supposed to be below q-2
June 27, 2010

algebra2
q+5 + q-2 = 7/3 _____________ 3 2
June 27, 2010

pre algebra
idk
June 23, 2010

algebra2
another one i dont get. the number N im millions of hearing impaired individuals of age X can be approximated by n=0.00006x by power of two+0.0006x power of two-0.1x+1.7 approxmate to the nearest millions the number of hearing impaired individual for ages 45 and 55?
June 13, 2010

algebra 2
ok supposed the base of a triangle is 5 cm greater than the height the area is 52 cm what is the height and length at the base?
June 13, 2010

algebra 2
simplify (4f power of 7)power of four is it f power of 8?
June 13, 2010

algebra 2
so t=31
June 13, 2010

algebra 2
i cant figure out how to solve this? T with two over powe +7T-18+0 so far if figure out T+ but i dunno what
June 13, 2010

windows xp and vista
I am taking this same course and I can't believe you have just posted the entire test on here when it is an open book test. Did you read anything?
June 9, 2010

chemistry
Im sorry but i dont get it..... wouldnt the Cr in C2O72- have a 6+ charge? and Cr3+ has 3+ charge. So the left Cr would be 6*4 =24 and the right Cr is 3*4= 12 so wouldnt that be 24-12= 12? what was your logic behind reducing it to 6? im sorry but this really confuses me
June 6, 2010

chemistry
for example this problem. the n is 6. how do we derive that? The galvanic cell described by the balanced chemical equation has a standard emf of 0.10 V. Calculate the maximum electrical work (kJ) the cell has done if 1987.2 g of Cr2O72-(aq) (Molar Mass - 216.00 g/mol) reacts. ...
June 6, 2010

chemistry
oh, im sorry. i wrote it wrong. But i also had one more question. Do the coeffiecents have any effect on our calculation of "n"?
June 6, 2010

chemistry
but dont you need to incorporate the charge of H+ when finding n
June 6, 2010

chemistry
i know how to do the problem but im not sure how the H+ effects the charge
June 6, 2010

chemistry
The electrochemical cell described by the cell notation has a standard emf (electromotive force) of -0.68 V. Calculate the value (kJ) for the standard free energy change of the cell. Round your answer to 3 significant figures. Pt(s) l MnO2(s) l MnO4-(aq), H+(aq) ll H+(aq), VO2...
June 6, 2010

science!!
:D
June 2, 2010

school
no one
June 1, 2010

planning & sys requirementa
what are the problems with the reliability and usefulness of analyzing business documents as a method for gathering information reguirements. Haow could you cope with these problems to effectively use business doumnts as a source of insights on system requirements?
May 31, 2010

Math
Check your formula it should be Rsquared not R2 (60x60) not 2X60
May 26, 2010

Organic Chemistry
I'm doing the same thing but I do not understand it fully. All of my general chemistry knowledge is gone.
May 18, 2010

math
2x-5+2(2x)+17=-2-5x+(4xy-7)
May 11, 2010

Math
Hi, can anyone help to: determine the equation of a parabola with the vetex (0,3) and passing through (3,4)? How to figure out the coeffiecient of X?
May 5, 2010

Math
Hi, can anyone help to: determine the equation of a parabola with the vetex (0,3) and passing through (3,4)? How to figure out the coeffiecient of X?
May 5, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evaluation by objectives?
May 4, 2010

mgt
what is evauation of objectives?
May 4, 2010

mgt
what is evauation of objectives?
May 4, 2010

machanics\
can u tell me what formula i should be using to answer this question? If a stone falls past a bird on a ledge moving at 4 m/s, how fast will the stone be movingjust before it hits the ground below 9 seconds later? A. 92.2 m/s B. 48.2 m/s C. 352.8 m/s D. 36 m/s
May 3, 2010

begining algebra
A cyclist traveling at a constant speed completes 3/5 Of a trip in 1 1/2h. In how many additional hours will the cyclist complete the entire trip?
May 2, 2010

aed204
I am taking that class too......this is cheating can't you do your own research
May 2, 2010

machanics
can u tell me what formula i should be using to answer this question? If a stone falls past a bird on a ledge moving at 4 m/s, how fast will the stone be movingjust before it hits the ground below 9 seconds later? A. 92.2 m/s B. 48.2 m/s C. 352.8 m/s D. 36 m/s
May 2, 2010

math (parabola)
Hi, the question is: Write the equation of the parabola with vertex(3,-1) and x-intercepts 2 and 4. I did this: y=?(x-3)^2-1 How to find the a-value? Many thanks, and I appreciate any answer!
April 30, 2010

General chemistry
oh ok thank you very much, is an online class and have to teach myself so somethings get confusing
April 27, 2010

General chemistry
No=18.0432 but im not sure what you mean by convert to BaCl2
April 27, 2010

General chemistry
A researcher needs 5.00 mg of 128Ba for an experiment. If the half-life of 128Ba is 2.43 days, how many milligrams of 128BaCl2 must she order from the manufacturer if it takes 4.50 days to ship the material from the manufacturer to the university? (Assume the molar mass of ...
April 27, 2010

General chemistry
thank you so much
April 27, 2010

General chemistry
What is the decay constant for a radioactive isotope which decreases to 34% of its original value in 2.48 hours?
April 27, 2010

chemistry
wee
April 26, 2010

calculus
bah
April 20, 2010

physics
i dont know
April 18, 2010

chemistry
aparently it is the 100% transmittance one....
April 17, 2010

social studies
btw i am egyptian and i went through some of that stuff when i was in egypt it is horrible
April 16, 2010

CAM
FYI NOT ALL MUSLIMS OR ARABS ARE LIKE THE PEOPLE WHO PARTICIPATED IN 911
April 15, 2010

language ms.sue could u please check these thanks
suffixes empty-empties monkey-monkeys security-securities holiday-holidays pity-pities friendly-i don't know this one strawberry-strawberries delay-delays birthday-birthdays say-says vocabulary-vocabularies conspiracy-conspiracies memory-memories candy-candys story-stories...
April 15, 2010

Math
I hate word problems! Can anyone just change this Following word prob to equations pls. I can do the rest! Sam invested $4500, part at 7%, the rest at 8 1/2%. After one year, the interest earned on 7% investment was $150 less than the interest earned on the 8 1/2%. How much ...
April 15, 2010

Math
Hi! Can someone solve these for me pls? Y=10/x y=1/2x+4 solve for x and y thanks
April 15, 2010

Sci 275
Just a note that "fallow" should be spelled "follow". I think the rest of the paper is fine.
April 14, 2010

math please help i don't understand this at all
a cylinder is formed by first tapping together the opposite edges of a rectangular piece of paper that is 11 inches long and 8.5 inches wide. if the height of the completed cylinder 8.5 what is its volume?use 3.14 for pie
April 14, 2010

language please check my work
-revise the sentence for a clear meaning here is the sentence Surgeons moved around the operating room, skillfully using tools wearing slippers. -the revised sentence Surgeons,wearing slippers,moved around the operating room skillfully using their tools. please if there is a ...
April 14, 2010

language could you please check my work
i am sorry but what does avocation mean?
April 14, 2010

Math
O God I hate word problems! Is there any mechanical way to memorize word problems? Can anyone just change this Following word prob to equations pls. I can do the rest! Sam invested $4500, part at 7%, the rest at 8 1/2%. After one year, the interest earned on 7% investment was...
April 14, 2010

meaning
what does beam mean
April 13, 2010

digraphs
what is a digraph and could you please give me some examples
April 13, 2010

Math
Many thanks Reiny!!
April 13, 2010

Math
Thanks Dylan! But I wanted to know HOW to WRITE OTHER equations to have the same answers as the ones below? NOT how to solve these! 2x+5y=8 x-3y=-7
April 13, 2010

business
Human nature is the wrong and right ethics usually learned from families and friends.
April 13, 2010

Math
Hi! How to determine other linear systems that have the same solution as this system: 2x+5y=8 x-3y=-7 many thanks.
April 13, 2010

Math
Thanks Damon! first I eliminated z by adding equation 1+2 (1st one *2) and got same as urs x+y= 10. Then, I eliminated z by adding equation 2+3 (2nd equation*3, and 3rd equation*2) and got x-y=6. x+y= 10 x-y=6 x=16 why is this wrong?
April 9, 2010

Math
How is graphing a system of inequalities similar and different than that of equations?
April 9, 2010

Math
Help pls! I just need to set the equations only, I can do the rest. The qu. Is: The sum of three numbers is 15. The sum of the first, the second, and twice the third is 20. The sum of the first, twice the second, and three times the third is 27. This is what I did: 1st # = x ...
April 9, 2010

Math
Dear Reiny! U r a life-saver! Is there a short cut to how can I set the question or change word problems into math one? It seems that this is my problem! Also, why did my way worked as well with different answers? My answers satisfied all equations as well. Many thanks.
April 9, 2010

MATH
X= 3/3 (divide both sides by 3 to get rid of x's co-efficient) x=1
April 9, 2010

math
Dear Reiny! U r a life-saver! Is there a short cut to how can I set the question or change word problems into math one? It seems that this is my problem! Also, why did my way worked as well with different answers? My answers satisfied all equations as well. Many thanks.
April 8, 2010

math
Hi, for the question, "the sum of two numbers is equal to a third number(x+y=z). The sum of twice the first, three times the second, and twice the third is 7(2x+3y+2x=7). The third number is 3 more than the first(3+z=x), have I set the equations right? I got different ...
April 8, 2010

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