Monday
September 22, 2014

Posts by bob


Total # Posts: 2,402

science
i grew in a cave, but im not alive. i began as water and minerals, but now i am solid. i grow upwards, but in never see the sky.what am i?
February 20, 2008

chemistry
whats the radius given?
February 18, 2008

Math- consecutive intigers
23.56643 i used a calculator :)
February 18, 2008

gography
what were budda's teachings?
February 11, 2008

math
Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x, translate it 5 units to ...
February 9, 2008

math
The perimeter of the polygon below is 9x-1. Find the expression for the missing side length. There are 5 expressions: 3x-4, x-5, x+1, 2x+3, and ?. I got ?=2x-6. I added all the equation and minus it from 9x-1.
February 9, 2008

math
They are vertical angles.
February 9, 2008

math
There are four angles, a,b,c,d. The measure of angle a is (3x+10) degrees. The measure of angle d is (x+10).What is the value of x? I made an equation 3x+10=x+10. I think the value is 0.
February 9, 2008

math
Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x, translate it 5 units to ...
February 9, 2008

Environmental Science
i dont know
February 8, 2008

ethics
Trends in immigration will continue to shape the face of the United States. What will this face look like in the year 2050? How can the country best prepare for the changing race and ethnicity of its current and future citizens?
February 7, 2008

Chemistry
idk
February 6, 2008

Science
paraffin is a petroleum by-product. When burned- would you call the black stuff soot or carbon?
February 4, 2008

Science
Candles are made from paraffin. Where does paraffin come from? What products are created from burning paraffin candles? How does the wick help the candle burn? Qualitative and quantitive observations?
February 4, 2008

Language Arts
Thank you
February 4, 2008

Language Arts
Do you think Frost is speculating his choice in the 4th stanza? Does he sigh because he was happy with his decision to take the road less traveled?
February 4, 2008

Language Arts
What is the figurative meaning of the roads diverging in Robert Frost"s poem "The Road not Taken"?
February 4, 2008

Chemistry
HI
February 4, 2008

pre algebra
how to solve 5x+8=7x?????!!!
February 3, 2008

Science (Chemistry)
The total pressure in a flask containing air and ethanol at 25.7C is 878 mm Hg. The pressure of the air in the flask at 25.7C is 762 mm Hg. If the flask is immersed in a water bath at 45.0C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature ...
February 2, 2008

Math
I need to make a formula showing that I added 100 to the 99th Triangular Number.. Anyone know how I can do that?
January 30, 2008

Spelling/Analogy
dock is to what as park is to garage?
January 30, 2008

Math
I need help with making a formula..? This is what I put.. "The 100th Triangular Number is 5,050. I found this by adding 100 to the value of the 99th Triangular Number. The 99th Triangular Number is 4,950. The formula I used to find it is..." Help?
January 30, 2008

Math
What is the formula to find the 99th Triangular Number?
January 29, 2008

algebra
i need help using subtraction while combining like terms, can you explain how its done?
January 28, 2008

science
they are moving all around
January 27, 2008

spelling
scray
January 24, 2008

Algerbra 1B
Start paying attention in class and dont be afraid to ask the teacher a question it might sound stupid but your not the only one who dosent get it you know what i mean
January 24, 2008

ALGEBRA
Where did the 56 come from in part 3c
January 23, 2008

Math
How can I explain how I figured out the 99th Triangular Number? I'd appreciate it if it is as simple as possible.
January 22, 2008

literature
What is Sojourner Truth's attitude toward the Bible?
January 16, 2008

Writing
How can I end this? ____ The bridge I made a model of is the Sydney Harbor Bridge. The bridge is located at Sydney, Australia. The Sydney Harbor Bridge is the main way to cross the Sydney Harbor carrying rail, vehicular, and pedestrian traffic between Sydney Central District ...
January 13, 2008

History
mmmm yup
January 13, 2008

Science
What is an example of a gas and solid solution
January 8, 2008

Writing
I need some ideas on a story about a Christmas tree... Any ideas?
January 7, 2008

Chemistry
4NaOH+2HSO4=====2Na2SO4+2H2O
January 3, 2008

physical science
we did a lab on how to separte solids and i cant remember how to do it, does anyone know what to do???
January 3, 2008

euro
thanks. what kind of info should I put on there.
January 1, 2008

euro
can someone please help me. i need an idea for a poster to support the Girondist cause during the french revolution
January 1, 2008

Chem
-796 kJ
December 12, 2007

Math
what number gives the same result when multiplied by 6 as it does when 6 is added to it?
December 5, 2007

Vectors
Thank you so so so so so much!
November 29, 2007

Vectors
The two labels on the right are 50 meters and 60 degrees. I'm really sorry, but I don't understand what you were trying to say. Can you please clarify?
November 29, 2007

Vectors
I meant add the 'o' in .c om but it wouldn't let me post a URL. Sorry for the confusion.
November 29, 2007

Vectors
If you want to look at the drawing, you have to remove the space between h and t in and add the letter 'o'. Thanks again, it would really help me.
November 29, 2007

Vectors
I have an incredibly tough problem that I need help solving. h ttp://i228.photobucket.cm/albums/ee127/wsu2012/Vector.jpg If you could take a look at that diagram and help me figure out the displacement relative to point A, after the person walked from point A to point B, that ...
November 29, 2007

Chemistry
at room temperature (about 20degree C) milk turms sour in about 64 hours. In a refrigerator at 3 degree C, milk can be stored for about three times as long before turning sour. Determine the approximate activation energy for the reaction that causes milk to sour and how long ...
November 18, 2007

Physics-Check my answers
Why are the tires for trucks carrying gasoline and other flammable fluids manufactured to conduct electricity?
November 6, 2007

Algebra 2
the answer is e if you have a graphing calculator you could put it in on that it helps for algebra
November 6, 2007

pigskin geography
name the teams that will travel to a ordering state to meet the competition?
November 4, 2007

French/ Latin
No.
November 1, 2007

Chemistry
88
October 31, 2007

Chemistry
kittens
October 31, 2007

trigiometry
math.
October 29, 2007

math
1. 4x^2-13x=12 I need to solve this problem by factoring or using the quadtratic formula. I am stuck when using the quadtratic formula method. Please advise how to do this. 2. 5x^2+42=0 How many roots exist in this equation and what type are they?
October 29, 2007

algebra homework
true or false, all rational numbers are integers. Explain
October 26, 2007

algebra-what catastrophe makes a kitten happy?
yeah but there are four blanks that only fills up two...
October 24, 2007

Chemistry
The chemachles will change color and make sprarks.
October 22, 2007

Math
520
October 22, 2007

AP Biology
hey sarah do u go to BHS in fresno ca?
October 21, 2007

biology
What happens when two molecules in a polysaccharide split apart? What is this process called? What enivornment do polysaccharides need to be in to perform this reaction? What is the ratio of C:H:O in sucrose?
October 15, 2007

physics
1.13 seconds
October 14, 2007

math
8x=4y=12
October 10, 2007

precalculus
I is Interest, but it doesn't list the definition of A.
October 9, 2007

precalculus
When Todd won the one million dollar lottery, he kept some of the money(M) in a short term account at 4.2% and invested the remainder at 7.25%. Write a relationship between I and A.
October 9, 2007

UK/Physics
Yes, the expression of Joules is generally very large when dealing with human beings moving slow, or small projectiles moving fast.
October 7, 2007

Health
We r learning about the reproductive organs and they seem to be confusing me on how they they function together to make an embryo.Can someone explain how they function?
October 4, 2007

geometry
Give the reason for the step taken from a proof. <1 and <2 are a linear pair given m<1 + m<2 = 180* ? a. congruent supplements theorem b. vertical angles theorem c. linear pair postulate d. congruent complements theorem when i put < i hope you know what i mean ...
October 3, 2007

geometry
i didnt finish writing this question so look at the question above for the complete question
October 3, 2007

geometry
Give the reason for the step taken from a proof. <1 and <2 are a linear pair given m<1 + m<2 = 180* ? when i put < i hope you know what i mean and when i put an asterisk sign just replace it with a degrees sign in your mind.
October 3, 2007

geometry
Is the statement true or false? Explain your reasoning. Perpendicular lines always intersect at right angles.
October 3, 2007

geometry
If PQ=3 and PQ+RS=5, then 3+RS=5 is an example of the ___________. A. multiplication property of equality B. reflexive property of equality C. transitive property of equality D. substitution property of equality
October 3, 2007

geometry
From the given true statements, make a valid conclusion. If the dogs get out of the yard, the catcher will take them to the pound. The dogs got out of the yard.
October 3, 2007

geometry
Is the statement true or false? Explain your reasoning. Perpendicular lines always intersect at right angles.
October 3, 2007

geography
after britain sent troops to boston to stop resistance to the townsedn acts, tensions exploded in the boston massacre of 1770 what was the effect?
October 1, 2007

journalism
what is a inverted pyramed?
September 29, 2007

Math, pleae help... just want to see if i got it
no
September 27, 2007

Geometry
Tell whether each statement is true or false. Then write the converse and tell whether it is true or false. 28. P is the midpoint of segment GH implies that GH = 2PG I have this so far. p (hypothesis): P is the midpoint of segment GH, q (conclusion): GH = 2PG You don't ...
September 18, 2007

Biology
2000ml
September 14, 2007

physics 111
A runner times his speed around a circular track with a circumference of 0.508 mi. At the start he is running toward the east and the track starts bending toward the north. If he goes halfway around, he will be running toward the west. He finds that he has run a distance of 0....
September 14, 2007

physics 111
A bicycle travels 3.2 km due east in 0.10 h, then 5.6 km at 15.0° east of north in 0.11 h, and finally another 3.2 km due east in 0.10 h to reach its destination. The time lost in turning is negligible. What is the average velocity for the entire trip? i need to find the ...
September 14, 2007

science
how to convert grams andmeters and stuff like that?
September 12, 2007

psychology
what are the main features of a lab experiment
September 11, 2007

6 Grade Math
How many whole numbers are there between 99 and 1000?
September 6, 2007

Microecon help
Please help! Review for a test and am so lost! (1) An article in the New York Times (Oct. 18, 1990) described a successful marketing campaign by the French champagne industry. The article also noted that “many executives felt giddy about the stratospheric champagne prices...
September 3, 2007

Algebra II
Sue is three times as old as her sister. In one year from now, their combined ages will be 22. How old are they now?
September 3, 2007

math
why is it important to use the order of operation in mathmatics
August 27, 2007

algebra
Google it!!! it works:D
August 25, 2007

i dunno
Yes. Do you know anyone who has finished it? It can't go on forever. But still... is it really impossible?
August 25, 2007

i dunno
Is it possible to win the impossible quiz that's on addictivegames? I odn't want to waste my time trying to figure it out if you can never win. Thanks
August 25, 2007

line
what is a compimentary line in math? Thank you for using the Jiskha Homework Help Forum. If you are studying Geometry: http://astronomyonline.org/Science/Geometry.asp
August 15, 2007

soc
Is modernization likely to continue in the U.S.? Explain your answer. Do you think people would be willing to go backward to prior technologies and ways of living, or will the society keep on "modernizing"? Once you "explain your answer, please be sure to re-...
July 24, 2007

Physics
A coin is dropped from rest into a well with water 45.0m below the hand that drops the coin. A) How much time passes between the release of the coin and its contact with the water? B)How fast will the coin be going when it lands in the pool? C)How long after the release of the...
June 28, 2007

Calculus
cool^2
June 17, 2007

riddles
stars
June 6, 2007

chemistry
what is the chemical equation for citric acid + sodium hydroxide? I will be happy to critique your thinking . Remember a salt and water will be formed. is it : C6H8O7 + 3NaOH--> NaC6H5O7 + 3H2O ? I would have written citric acid in this form H3-C6H5O7, and sodium citrate as...
June 5, 2007

math
The smallest number of people in a room where the probability of two of them having the same birthday is at least 50 percent.
May 25, 2007

some algebra help (radicals)
DUH-R U DUMB OR SOMETHING?!?!?
May 6, 2007

reading
how
May 3, 2007

algebra 2
i forget what the n in the factorial theorem (n/r-1) is. Does anyone know? In statistics, "n" typically stands for the number of scores in a sample. I hope this helps. Thanks for asking.
May 1, 2007

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