Tuesday
September 2, 2014

Posts by astrid


Total # Posts: 93

MATH
THE SCALE OF A MAP IS 0.5 IN :25MI THE ACTUAL distance between two cities is 725mi write a proportion that represents the relationship how far apart will the cities be on the map
November 7, 2013

Geometry
Use your geometry tools to draw a convex hexagon with two consecutive sides measuring 5 cm and three consecutive angles measuring 130°
September 8, 2012

Geometry
Write these definitions using the classify and differentiate method to fill in the blanks: a. An octagon is __________ that ___________. b. A concave polygon is __________ that ___________. c. A 20-gon, also called an icosagon, is __________ that ___________. d. An equilateral...
September 7, 2012

Science
Which of the foolowing occurs when a mass of air rises into the atmosphere? A) it becomes warmer because the particles move closer together B) it becomes cooler because the particles move closer together C) it becomes cooler because the particles move farther apart D) it ...
April 4, 2012

Earth/Space Science
How does damage to the ozone layer cause a threat to humans? A. It increases radiation of heat from Earth into space. B. It allows damaging infrared radiation to penetrate the atmosphere. C. It allows damaging ultraviolet radiation to penetrate the atmosphere. D. It increases ...
April 2, 2012

Science
How does the process of upwelling affect the distribution of life in the ocean? A.It keeps the salinity of the ocean constant. B.It replaces polluted water near shore with clean water. C.It replaces nutrient-depleted waters with nutrient-rich waters. D.It carries energy-rich ...
March 26, 2012

Earth/Space Science
A?
March 20, 2012

Earth/Space Science
Which of the following is responsible for absolute sea-level changes? A. formation and melting of ice sheets B. erosion of land surfaces by wind and water C. human activities along coastlines, such as development and grading D. movements of a tectonic plate, causing part of ...
March 20, 2012

Earth/Space Science
Why are icebergs in shipping lanes so hazardous?
March 18, 2012

Biology
two negative effect of direct artificial selection?
March 4, 2012

Math
If a recipe calls for 6 cups of juice for each of the eight punch bowls, how many gallons of juice will be needed?
February 23, 2012

chemistry
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL?
August 3, 2011

Chemistry
What is the maximum volume of 30 M NaCl that can be prepared from 60 g NaCl(s)?
November 14, 2010

chemistry
Thank you so much!
March 31, 2010

chemistry
In a laboratory setting, how would you determine if a compound was a hydrate?
March 31, 2010

History
What is the history of the Temple Mount? I've been looking up a lot of information for this but some of it is too much and I need a more condensed infomation.
March 19, 2010

Chemistry
How many carbon tetrachloride (CCl4) molecules are in 3.00 mol of CCl4? How many carbon atoms? How many chlorine atoms? How many total atoms? I have no idea how to do all of this =\
March 14, 2010

chemistry
Compare a mole of Ag-108 and a mole of Pt-195 using atoms, protons, electrons, and neutrons.
March 11, 2010

chemistry
Identify the quantity that is calculated y dividing the molar mass of an element by Avogadro's number. I don't get this question..?
March 10, 2010

Chemistry
I am doing a report on the composition of the Olympic medals. I need to know what the values are for each medal? Is there a website?
February 25, 2010

chemistry
Why is there one large increase in ionization energies for each element? Which atoms form ions that are larger than the atoms? I have a test tomorrow and these are the questions I have troubles understanding.
December 14, 2009

geometry
What is the relationship between the number of vertices of a regular polygon and the number of summetry lines of the polygon?
December 7, 2009

Social Studies
Thank you but I decided to do how the World Wide Web was available on the Internet on August 6, 1991, but I can't find an article. Are there any websites I could use?
December 3, 2009

Chemistry
What are two differences between the red and green electromagnetic waves in a rainbow?
December 2, 2009

chemistry
Can someone show me a website that talks about spectrums of elements. Including why they're all different, like basic information of spectrums. The why, how, and what.
November 12, 2009

chemistry
we did a bunsen burner lab where we burned paper clips. We burned it for about 10 seconds then cooled it in water. I know this is a physical change but i need to come up with 3 chemical changes that occured. I already came up with the water vapor that occurs when it cools down...
October 26, 2009

chemistry
It was supposed to be a ratio and using exponential notation and skipping a step in cross multiplying, but it's very confusing how she did it.
October 5, 2009

chemistry
My teacher taught me a different way but it's very confusing. She used exponential notations. For example, how many milligrams equals 1 gram? she did: x/1 milligram= (1.0g x 10^0g) 1 milligram/ [all over] 1.0 x 10^-6 which equals 1.0 x 10^6 milligram
October 5, 2009

chemistry
How do you do conversions? For example: Convert 360 s to ms
October 5, 2009

math
Which other country besides the U.S. uses the English metric system?
September 30, 2009

Chemistry
What are intermolecular forces? What do intermolecular forces have to do with the states of matter? I tried googling it, but they gave me really fancy answers and i need something that i will be able to understand
September 29, 2009

history
I have to do a Current event about any culture around the world so I have to find articles online. I tried googling but it doesnt help much, can someone help please? Thank you!
September 17, 2009

literature
yes i've read the book some of my ideas are that they need to know they can command one uncontrollable thing, like brian said in the book since they are always in the sidelines when it comes to taking care of kate's illness but i need to expand it more and see if there...
August 22, 2009

literature
in my sister's keeper, the novel, how are jesse and brian alike? how do they understand each other better at the end of the story?
August 22, 2009

English
I have to write an essay about three 'heroes' so I chose Batman, Harry Potter, and Hercules. But I need to know what they have in common so any ideas?
May 17, 2009

Biology
Which of the following do NOT have a mesoderm? A. Jellyfishes B. Earthworms C. Flatworms D. Octopi E. Snails
May 5, 2009

Literature
Well the story is about the author's experiences in the jungle (the Amazon) and how it's so beautiful to her, like home but with dangerous situations like weather conditions and wild animals. It's also asking what might be her purpose in describing both violent and...
May 4, 2009

Literature
I typed it out but I'll try again. Out of the way of human life, tenderness, or the glance of heaven? -from "In the Jungle" by Annie Dillard I don't understand what this question means from the story and I need to know it so that I can do my essay.
May 4, 2009

Literature
Out of the way of human life, tenderness, or the glance of heaven? -from "In the Jungle" by Annie Dillard What does this question mean?
May 4, 2009

Literature
I have an essay for Romeo and Juliet, asking if Friar Laurence should be punished for his involvement in the marriage. I said that he shouldn't be punsihed because he was trying to end the feud and that Romeo and Juliet would have still be together even if their parents ...
April 29, 2009

Biology
How could one change in a DNA nucleotide alter the formation of the translated protein?
March 26, 2009

Biology
Cross a roan bull with a roan cow. I need to know the key and the punnet square
February 11, 2009

Biology
1. Cytosol is what? a. none of these b. all of the organelles c. cytoplasm + nucleoplasm d. cytoplasm e. cytoplasm + organelles 2. What type of cell does not divide by Mitosis? a. bacteria b. prokaryotic c. eukaryotic d. fungi e. algae
December 30, 2008

Biology
-Rank the following terms from simplest to most complex: cells, organelles, organs, tissue, organism. -If a cell is like a school, then the nucleus would be...? -Which organelle serves as a "workbench" for the ribosomes?
December 4, 2008

biology
If iodine and water are mixed together and form a clear yellow solution and then cornstarch is added to iodine and form a dark brown color, what is the signifigance of the two different colors? Which one showed a positive presence of a sugar?
November 20, 2008

biology
If the pH of a sample was 3 how many times more acidic is it than a solution with a pH of 6?
November 2, 2008

algebra
Is there a website that could give me information on the sierpinski triangle and sierpinski pyramid? Please and thank you.
June 12, 2008

spanish
How does the environment, climate, terrain effect the interaction between man and nature in Bolivia, Paraguay,and Uruguay?
June 4, 2008

algebra
The drama club is building a backdrop using arches whose shape can be represented by the function f(x)=-x^2+2x+8, where x is the length in feet. The area under each arch is to be covered with fabric. -What is the length of the segment along the floor of each arch? -What is the...
May 8, 2008

algebra
Can I have a brief summary about Sierpinski's Triangle? Also, what is a conflict resoultion dealing with discrete math?
May 2, 2008

science
How can she make sure its 100 ml?
April 29, 2008

science
So if she lets the water evaporate, she can use the remaining salt to use it in another cip with 250 ml of water
April 29, 2008

science
She can't add more salt because she has no more salt.
April 29, 2008

science
Erin must perform a science experiment. She needs to dissolve 10 g of salt in 250 ml of water. She measures the water incorrectly and dissolves the 10 g of salt in 350 ml of water. Now she has no more salt. Explain what Erin can do to make the solution accurate.
April 29, 2008

algebra
Construct a set of ten numbers that have a mean of 8, median of 6 and a mode of 5. Please help. Thank you!
April 24, 2008

algebra
Write four different numbers for which both of these statement are true. -The range is 8 -The mean and median are the same number
April 23, 2008

algebra
Sean and Barry are practicing in a 30-mile bike race. Sean averages 20 miles per hour and Barry averages 15 miles per hour. Howm many miles will Barry be from the finish line when Sean finishes the race?
April 22, 2008

math
Wouldn't the absolute value of 0 be 0 right?
April 21, 2008

algebra
Write two numbers so that: -The first number is less than the second number, and -the absolute value of the first number is greater than the absolute value of the second number.
April 21, 2008

science
I'm doing a research paper on whales. I need to know how they lost their legs and went to the waters. I also need to know why they went to the waters.
April 16, 2008

algebra 1
That is confusing. We aren't learning it that way.
April 5, 2008

algebra 1
I don't know how to factor this polynomial. r^3+6r^2+11r+6 Please help.
April 5, 2008

algebra
I get it now. I messed up on (2x+1)^2. I didn't simplify it right. Thank you guys so much.
April 2, 2008

algebra
I tried that but it didnt give me a quadratic equation and thats what we've been studying.
April 2, 2008

algebra
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet and the length of the ladder is one foot more than twice the distance from the wall. Find the distance from the wall to the bottom of the ladder. (Hint: Use the Pythagorean ...
April 2, 2008

algebra
Okay thank you so much!
March 19, 2008

algebra
Fiona and Greg play a number guessing game. Greg gives Fiona this hint about his two secret numbers, "The product of the two consecutive positive integers that i am thinking of is 11 more than their sum." What are Greg's numbers?
March 19, 2008

science [help please]
Why can salt water be considered both a mixture and a solution? Describe what is happening at the particle level when an M&M dissolves.
March 17, 2008

science
Why can salt water be considered both a mixture and a solution? Describe what is happening at the particle level when an M&M dissolves.
March 17, 2008

algebra
Cystic fibrosis is inherited from parents only if both have the abnormal CF gene. Children of two parents with the CF gene will either be affected with the disease, a carrier but not affected or not have the gene. -Write an expression for the genitec makeup of children of two ...
March 5, 2008

science
Right. Okay Thank you.
March 4, 2008

science
So more kinetic energy can be taken away from the ice?
March 4, 2008

science
Is it possible for ice in your freezer to be below 0 degrees celsius? Explain it to me please.
March 4, 2008

science
Describe what happens at the particle level and what happens to a liquid's temperature when it reaches the liquid's heat of fusion. Is it possible for the ice in your freezer to be below 0 degrees celsius? explain. When does ice in your freezer reach equilibrium? I ...
March 4, 2008

spanish
Thank you. My teacher said that it wasn't the Incas because that was the name of the emperor. He was called the Inca. However I still dont know what they were called.
February 12, 2008

spanish
What were the indegenous people of Peru called? All I know is that they were not called the Incas.
February 12, 2008

civics
Can someone give me a website about segregation facts that is still happening now?
February 6, 2008

science
I think the gas is carbon dioxide or oxygen cus water is H2O, so which one is right?
January 19, 2008

science
What gas do you think is in the bubbles that form when NaHCO3 (sodium bicarbonate) and C6H8O7 (citric acid) react? Why?
January 19, 2008

math
So the answer would be 86?
January 6, 2008

math
I dont understand how to get the second equation
January 6, 2008

math
The sum of the digits of a two-digit number is 14. If the numbers are reversed, the new number is 18 less than the original number. Find the original number. I know Ana asked this question, but i dont understand how to get the equations.
January 6, 2008

reading
What is the climax of the book Among the Free by Margaret Peterson Haddix? Also, what is the setting (time and place)? Thank you!
January 2, 2008

science
what are the differences between minerals and rocks?
December 12, 2007

spanish
i read that one a while ago and I kept reading throught the sights maggie and wilma had, but i still cant answer the questions. So far i know that Europeans were attracted by the gld that the countries had, but i dont know what else and the answer to the other question.
December 6, 2007

spanish
How did the geography influence the immigration for the exploration in Colombia and Venezuela? How did the indegenous mix with the Europeans to develop the culture in Colombia and Venezuela? I've tried many websites such as fact monster, wikipedia, britannica, and i ...
December 6, 2007

spanish..i need help
How and why did people go to Argentina and Chile? please help. Thank you!
October 10, 2007

spanish
-how and why did people go to ARgentina and Chile? -What traditions, events, and ideas helped form the identity of ARgentina and Chile? -What facotrs (geographic, economic, and political) allowed each country to grow and prosper? -What does El Cristo de los Andes signify?
October 10, 2007

science
ok thank you so much
October 8, 2007

science
How might sand form in nature?
October 8, 2007

books
What is the author's tone of Maniac Magee? Is it light-hearted, humorous, serious, sarcastic, intense, or depressing? What do you think? I think it's serious but i can't explain why. Is it because even though people think Jeffrey is a crazy kid, the author wants ...
August 6, 2007

science
Is concrete a heterongeneous or homogeneous mixture? Your exact answer here: http://www.usoe.k12.ut.us/curr/Science/sciber00/8th/matter/sciber/matter.htm
June 10, 2007

Anatomy and Physiology
Which organic compounds and cellular organelles are involved in protien synthesis? For these answers please browse: http://www.google.com/search?as_q=&num=10&hl=en&btnG=Google+Search&as_epq=protein+synthesis&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&...
October 8, 2006

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