Monday
December 22, 2014

Posts by ABBY


Total # Posts: 680

Writing/Environmental science
I'm writing a thesis/research paper on how all animals play an important role on the environment. I'm trying to narrow my paper down on an endangered species but I'm having trouble deciding/thinking of a species that play IMPORTANT roles (ie.- honeybees). Except I ...
December 19, 2014

Language Arts
As soon as Johnny began to cultivate Dove, he was surprised at the response?
December 19, 2014

History
I Agree With All Along with the Great Ms.Sue :P
December 8, 2014

math
At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle does the parent ...
December 7, 2014

algebra
Identify the vertices of the solution region of the system of linear inequalities. (Order your answers from smallest to largest x, then from smallest to largest y.) x ≥ −2 x ≤ 3 y ≤ 5 y ≥ x (x, y) = (x, y) = (x, y) = (x, y) = Tried several times, ...
December 4, 2014

Science
I hadn't seen ur post till after laggy internet :P
December 1, 2014

Science
Oh and Damon thank you for the help i believe u are right thoe <3
December 1, 2014

Science
Oh and Damon thank you for the help i believe u are right thoe <3
December 1, 2014

Science
After A little While Of Thinking I believe 16.) Is Stop 18.) is Nonpoint Source and 19 is Cost Benefit
December 1, 2014

Science
~~~~~~~~~~~~~~~~~~~~~~~~~Choices *Extra Words In The Word Box (Will Be Leftovers)* -Landfills -Limiting Factor -Non~point Source -Habitat Destruction -Stop -Migration -Biodiversity -Carbon Dioxide -Reverse -Carrying Capacity -Commensalism -Selective Cutting -Extinction -...
December 1, 2014

english 3
Question 1 (Multiple Choice Worth 5 points) Which element relies on logic, credibility, and emotion? rhetorical devices theme statements purpose statements thesis statements Question 2 (Multiple Choice Worth 5 points) "AT this second appearing to take the oath of the ...
November 20, 2014

Social Studies
Okay thank you for try to help. (:
November 20, 2014

Social Studies
Do you know what which one it is. This did not help me. Sorry): maybe it is just me.
November 20, 2014

Social Studies
What important resource do Qantas move? A)Solar Power B)Oil C)water D) Natural Gas
November 20, 2014

chemistry
A mixture of gases has the following partial pressure for the component gases at 20 degrees Celsius: oxygen 180.0 torr, nitrogen 3200 torr, and hydrogen 246.0 torr. Calculate the pressure of the mixture.
November 6, 2014

algebra
Putangina! Mag-aral ka mabuti! Hindi yung umaasa ka nalang sa internet!
November 4, 2014

Chemistry
Calculate the mass of sugar, C12H22O11, in 280.4 mL of a 1.49 M solution of sugar. (atomic weights: C = 12.01, H = 1.008, O = 16.00)
November 3, 2014

Chemistry
What volume (in milliliters) of 0.355 M aqueous ammonia, NH3, could be made from 19.9 mL of concentrated aqueous ammonia (15.0 M)? (atomic masses: N = 14.01, H = 1.008)
November 3, 2014

Chemistry
Household ammonia contains 0.85 g of NH3 in each 100. mL of solution. What is the molarity of the ammonia solution? (atomic masses: N = 14.01, H = 1.008)
November 3, 2014

Chemistry
What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
November 3, 2014

Help!-algebra
Which table of values can be used to graph the function y=-4x+3? a. x:-1,0,1,2 y:-1,3,7,11 b. x:-3,-1,1,3 y:-9,-1,7,15 c. x:0,1,2,3 y:3,-1,-5,-9 ***** d. x:0,1,2,3 y:3,7,11,15
November 3, 2014

chemistry
How many moles of Ca(OH)2 are in 4.10 kg of Ca(OH)2? Answer in units of mol
October 31, 2014

physics
If the speed of light through material Z is 2.5 × 108 m/s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 108 m/s.
October 31, 2014

Math
You have a recipe for homemade cookies that makes 5 batches.if the recipe calls for 3 and 1/3 cups of milk, how much milk would you need to make 1 batch?
October 30, 2014

Science please help!!
To determine the atomic mass of an element, you would take a _________ average of the isotopes that make up that element
October 28, 2014

algebra. help!
A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
October 27, 2014

Math help
A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
October 27, 2014

physics
To push a 16 kg crate up a frictionless incline, angled at 32° to the horizontal, a worker exerts a force of 108.0 N, parallel to the incline. As the crate slides 1.50 m, how much work is done on the crate by the worker's applied force?
October 24, 2014

Math
(-3.4,0)
October 24, 2014

Math
There are four brown shoes and 10 black shoes on the floor. your puppy cares away two shoes and puts one shoe in the trashcan and one in the laundry basket. a. What is the probability that there will be a black shoe in the trash and a brown shoe in the laundry basket?
October 14, 2014

Science, The Nitrogen Cycle
OOPS! Typo Sorry. Please*
October 12, 2014

Science, The Nitrogen Cycle
Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other organisms can use? A. Nitrogen-Fixing Bacteria B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the ...
October 12, 2014

science!! please help me!!
these are just a few of my homework questions, i have 50 more i just need some help with these ones. i would be so happy for any help that you can give me!!!
October 11, 2014

science!! please help me!!
1)When evolution was first proposed, which of the following was used as evidence to support the idea? (1 point) A)observations of nature*** B)laboratory experiments C)extensive fossil collections D)genetic sequences 2)How did Darwin and Lamarck differ in their thinking about ...
October 11, 2014

physics
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 33m/s at an angle 28∘ above the horizontal.
October 5, 2014

Math Check
Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to 14√43? a.) 7 ...
October 5, 2014

Algebra 1 Check
Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to 14√43? a.) 7 ...
October 5, 2014

math
Are you sure?
September 24, 2014

math
my answer is a for number 1. and d for number 2?
September 24, 2014

math
An art student wants to make a model of the classroom. The length of the classroom is 2.4 times its width. The length of the students model is 42 in. What should the width of the model be? a. 17.5 in b. 20.5 in c. 83.6 in d. 100.8 in Use mental math to determine the solution x...
September 24, 2014

algebra. help!
so its open?
September 24, 2014

Pre-Calculus
Shut your MOUTH
September 14, 2014

Pre-Calculus
Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...
September 14, 2014

Pre-Calculus
Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...
September 13, 2014

Pre-Calculus
Hi! I have three questions that I need checked over just to make sure I understand it. Thanks! :) 1.) What is the slope of the line that passes through (5, 8) and (-2, 6)? My answer: -2/7 2.) If Segment AB || Segment CD and the slope of Segment AB = 1/2, what is the slope of ...
September 13, 2014

Math
amy is building a house. the basement floor is at -15 feet. the roof of the house is above 25 feet. express the comparison of height as an inequality. explain the meaning of the inequality
September 3, 2014

algebra
The sum of 16 and twice Gail's score
September 2, 2014

physical chemistry
In an experiment, at a total pressure of 10atm and 400 degree celcius, the equilibrium mixture 2NH3=N2+3H2 the ammonia was found to have dissociated to the extent of 96%. Calculated Kp for the rxn. (reversible rxn).
August 14, 2014

math
In the diagram, the circle will be dilated by a scale factor of 3 about the origin. The points C, A, and B map to C', A', and B' after the dilation. What is the length of ? Use the distance formula to help you decide.
July 24, 2014

physics
A diver with a mass of 51 kg reaches a maximum height of 5.8 m above the water. When the diver has fallen 2.8 m from the apex, what is her kinetic energy (J)? Assume horizontal velocity is zero.
July 20, 2014

math
A woman buys a $ 78 necklace at a jewelry store. She gives the jeweler a check for $ 100. Because he does not have the $ 22 change, he goes to another merchant next door. There he exchanges the woman's check for $ 100 in cash. He returns and Gives the woman the necklace ...
July 10, 2014

physics
A mass m is gently placed on the end of a freely hanging spring. The mass then falls 21.3 cm before it stops and begins to rise. What is the frequency of the oscillation? I found the same question (with a different length) posted on here, but following the steps of the answer ...
June 12, 2014

Calculus
Compute the absolute and relative errors in using c to approximate x. x=e;c=2.68
June 1, 2014

Physics
A box is pushed down an incline from point A to point B by a force F (and also under the influence of its weight). The distance from A to B, along the ramp, is 5.0 m. The force F is parallel to the incline, as shown, and has a magnitude of 2.0 N. The force of kinetic friction ...
May 30, 2014

Physics
Two particles with the same mass and same initial speed collide and stick together and leave the collision with half of their initial speed, bound together as one particle. What was the angle between the initial momenta of the particles before the collision?
May 27, 2014

Physics
Two particles with the same mass and same initial speed collide and stick together and leave the collision with half of their initial speed, bound together as one particle. What was the angle between the initial momenta of the particles before the collision?
May 27, 2014

Spanish 2
Can someone help me with these two? Thanks! :) Directions: Re-write the sentences in Spanish. The sentences are in all tenses. 1.) Include a direct or indirect object pronoun in the re-write: He used to buy books for the students. 2.) We have eaten breakfast. My answers: 1.)...
May 20, 2014

statistics
A manufacturer ships toasters in cartons of 50. In each carton, they estimate a 2% chance that one of the toasters will need to be sent back for minor repairs. In a batch of 25,000 toasters, what are the chances that fewer than 475 need to be returned? The probability that ...
April 15, 2014

spanish - HELP!
Thank you!!
March 25, 2014

science
are these correct??
March 22, 2014

chemistry
1. How many different 4p orbitals are there? 2. How many radial nodes are there? 3. How many angular nodes are there? (excluding the radial nodes) I thought it was 2,1, 2??
March 12, 2014

chemistry
1. it takes: ____ electrons to fill the 6d subshell of an atom. 2. It takes _____ electrons to fill the n=6 shell of an atom. I thought it was 22 and 72?
March 12, 2014

chemistry
What is the velocity, in meters per second, of a beam of electrons if they are to display a "de Broglie" wavelength of 41.2 um?
March 12, 2014

chemistry
no, there is no diagram. they just say it: 8p1 is the orbital number. So n=8. but i'm stuck from there. Thank you for your help.
March 12, 2014

chemistry
What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 8p^1? Thank you!!
March 12, 2014

chemistry
Thank you!! You are so helpful!
March 12, 2014

chemistry
What is (delta E) for the traansition of an electron from n=9 to n=4 in a Bohr hydrogen atom? What is the frequency? Thank you!
March 12, 2014

chemistry
What is the wavelength, in nm, of light with an energy content of (1.35x10^3 kJ/mol)? Thank you!!!
March 12, 2014

English 9 - HELP!
I wanted you to check my answers. 1. c 2. c 3. a 4. c 5. a 6. d 7. b 8. e
March 11, 2014

English 9 - HELP!
1. The small boat was scudding into the open sea with a full sail. (1 point) getting stuck sinking deeply moving swiftly rocking harshly 2. As an outdoor enthusiast, Kristina abhorred the fact that people left debris along the hiking trail. (1 point) recently discovered ...
March 11, 2014

chemistry
Given the following thermochemical equations, NO(g) + (1/2) Cl2(g) --> NOCl(g) -37.78 kJ (per mol NOCl) NO(g) + (1/2) O2(g) --> NO2(g) -56.53 kJ (per mol NO2) 2 NO2(g) --> N2O4(g) -58.03 kJ (per mol N2O4) what is the standard enthalpy change for the reaction below? ...
March 5, 2014

chemistry
What is w when 1.27 kg of H2O(l), initially at 25.0oC, is converted into water vapour at 133oC against a constant external pressure of 1.00 atm? Assume that the vapour behaves ideally and that the density of liquid water is 1.00 g/mL. (Remember to include a "+" or &...
March 5, 2014

chemistry
A 0.016076-mol sample of an organic compound was burned in oxygen in a bomb calorimeter. The temperature of the calorimeter increased from 23.7oC to 24.5oC. If the heat capacity of the calorimeter is 4.98 kJ (oC)-1, then what is the constant volume heat of combustion of this ...
March 5, 2014

Math
The area of a rectangle is 32 in.² the length is twice the width. what is the perimeter of the rectangle?
March 2, 2014

chemistry
A sample of gas is compressed from 13.57 L to 3.93 L using a constant external pressure of 2.91 atm. At the same time, 1,759 J of heat flows into the surroundings. What is the internal energy change for the gas?
March 1, 2014

chemistry
A 0.016076-mol sample of an organic compound was burned in oxygen in a bomb calorimeter. The temperature of the calorimeter increased from 23.7oC to 24.5oC. If the heat capacity of the calorimeter is 4.98 kJ (oC)-1, then what is the constant volume heat of combustion of this ...
March 1, 2014

chemistry
How do you calculate the volume on the left and on the right?
March 1, 2014

chemistry
The enthalpy change for the reaction below at 25oC is -2,051 kJ (per mole of C10H22). What is the internal energy change for the reaction at 25oC? 10 CO(g) + 21 H2(g) --> C10H22(l) + 10 H2O(l) Enter your answer in kJ (per mole of C10H22), rounded to the nearest kilojoule.
March 1, 2014

chemistry
The standard enthalpy of combustion of C2H6O(l) is -1,367 kJ mol-1 at 298 K. What is the standard enthalpy of formation of C2H6O(l) at 298 K? Give your answer in kJ mol-1, rounded to the nearest kilojoule. Do not include units as part of your answer. Note: The standard ...
March 1, 2014

chemistry
Given the following thermochemical equations, NO(g) + (1/2) Cl2(g) --> NOCl(g) -37.78 kJ (per mol NOCl) NO(g) + (1/2) O2(g) --> NO2(g) -56.53 kJ (per mol NO2) 2 NO2(g) --> N2O4(g) -58.03 kJ (per mol N2O4) what is the standard enthalpy change for the reaction below? ...
March 1, 2014

chemistry
When a 6.79-g mixture of methane, CH4, and ethane, C2H6, is burned in oxygen at constant pressure, 369 kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1...
March 1, 2014

chemistry
What is w when 1.27 kg of H2O(l), initially at 25.0oC, is converted into water vapour at 133oC against a constant external pressure of 1.00 atm? Assume that the vapour behaves ideally and that the density of liquid water is 1.00 g/mL. (Remember to include a "+" or &...
March 1, 2014

chemistry
Ah! okay! But thank you so much for answering a few!
March 1, 2014

chemistry
Hello, a few questions: Thanks so much! 1. The heat capacities of titanium and water are 0.522 J g-1 K-1 and 4.184 J g-1 K-1, respectively. What is the final temperature of the titanium-water mixture if a 175.0-g sample of titanium, initially at 90.0oC, is added to 50.0 g of ...
March 1, 2014

Math
A line in coordinate plane contains the points P(2, -7) and Q(-4, -1). What point is the midpoint of PQ?
February 27, 2014

The Power of Media
Ok, #1 is Which of the following is an example of a print medium? a.) a blog b.) a newspaper ******* c.) a magazine’s website d.) all of the above
February 25, 2014

Is a blog a print media? yes or no?
Oh ok, thanks!
February 25, 2014

Is a blog a print media? yes or no?
Is a blog a print media? yes or no? I think yes it is.
February 25, 2014

chemistry
we're in the same class!
February 24, 2014

chemistry
A 33.0-L cylinder contains 481 g O2(g) at 22.5°C. What mass of O2(g) must be released to reduce the pressure in the cylinder to 6.16 atm, assuming the temperature remains constant? Thanks! :D
February 24, 2014

chemistry
Hydrogen peroxide, H2O2, is used to disinfect contact lenses. What volume of O2, in mL, or O2(g) at 31 degree celsius, and 741mmHg can be liberated from 10.0mL of an aqueous solution containing 3.00% H2O2 by mass? The density of aqueous solution of H2O2 is 1.01g/mL. Thanks! :)
February 24, 2014

Math ~ Need Help! ~
Thnx
February 24, 2014

Math ~ Need Help! ~
• 1. Draw a segment and create a perpendicular bisector using the geometric construction techniques. • 2. Draw an angle and create an angle bisector using geometric construction techniques.
February 24, 2014

Math! HELP!
Can you help me with some graph ones?
February 21, 2014

Math! HELP!
Reiny, Steve!! I need help!
February 21, 2014

Math! HELP!
For questions 14-15, find the simplified form of each expression. (3/2b^4)^3 (3/5y^4)^-2
February 21, 2014

Language Arts- Writeacher check again
#2. Which is the correct MLA citation for a magazine article? a.) Brian Carson. ''The Real Story Behind Big Foot.'' Myths and Legends Mar. 2010: 20. Print. b.) Carson, Brain. ''The Real Story Behind Big Foot.'' Myths and Legends Mar. 2010: 20. ...
February 21, 2014

Language Arts-check answer-
ok
February 21, 2014

Language Arts-Only 2 answers to check!
I just need #2 and #3!
February 21, 2014

Language Arts-check answer-
#1. What is one thing a strong introduction does NOT do? a.) capture the reader's interest b.) present evidence to explain the topic******* c.) provide background information d.) state the main idea of the report #2. Which is the correct MLA citation for a magazine article...
February 21, 2014

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