Wednesday
August 20, 2014

# Posts by Nikki

Total # Posts: 562

music
the is an essential characteristic of sonata form
February 10, 2010

music
which one of the following terms best describes the music the classical period
February 10, 2010

its 44.1 million
February 5, 2010

physics
I'm having a really hard time with this physics problem...not really sure where to begin or which equation to use....please help: You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71...
January 29, 2010

mathematics
Question # 1: A series is: 1. any list of numbers 2. a summation of quantities whose positions are based upon the natural numbers 3. an arrangement of quantities whose positions are based upon the natural numbers. Which number is it? Question # 2: For the rule of 78, for a 12 ...
January 27, 2010

English
Why is it that in today's working world being able to write well and to use grammar correctly are so important?
January 26, 2010

Math
question 1: A series is: 1. any list of numbers 2. a summation of quantities whose positions are based upon the natural numbers 3. an arrangement of quantities whose positions are based upon the natural numbers. Which number is it? question 2: For the rule of 78, for a 12 ...
January 26, 2010

finance
Century Corporation uses a continuous billing system that results in average dialy receipts of \$600,000. The company treasurer estimates that a proposed lock-box system could reduce its collection time by 2 days. a. How much cash would the lock-box system free up for the ...
January 19, 2010

Math
THank you so much
January 18, 2010

Math
According to the U.S Bureau of Census in the year 1850 the population of the US was 23,191,876 in 1900 the population was 62,947,714 A. Assuming that the population grew exponentially during the period compute the growth constant k. B. Assuming continued growth at the same ...
January 18, 2010

biology
In this organelle, carbon dioxide and water are converted to _________ and oxygen
December 15, 2009

maths
using the mean valiue thereom on f(x)=arcsin(x), show that x< arcsin(x)< x/(sqrt1-(x^2)) for 0<x<1
December 9, 2009

healthcare
suffereing from tetanus
December 5, 2009

Chemistry
btw my guess for the second one was d.
November 30, 2009

Chemistry
Sodium Chloride is the LEAST soluble in which of the following liquids? a. H2O b. CCl4 c. HF d. CH3OH e. CH3OOH I know NaCl is a polar molecule...and a dipole-dipole IMF bond? My guess is b because it's nonpolar and I think it's a London Dispersion IMF. Is this right? ...
November 30, 2009

Chemistry
Complete the reaction: Methanol and propanoic acid are mixed. Okay, I got the two formulas: CH3OH + CH3CH2COOH ---> ??? ...now I don't know what to do. Lots of CH3's and CH2's. Help? Thanks!
November 28, 2009

AP Chemistry
A 25.0g sample of glucose, C6H12O6, dissolves in 525mL of distilled water. a. what is the boiling point elevation of the solution over the pure solvent? b. At what temperature will the solution boil at sea level? --- I'm not a fan of these types of questions. This is the ...
November 23, 2009

Math
Determine an equation of the circle that is tangent to both axes, has its center in the fourth quadrant and passes through the point (8, -9). Help please? Thanks much!
November 14, 2009

Malgebra
dont know
November 11, 2009

english/ global
What's the word when someone believes in more than one religion? -Like someone who believes in Buddhism and Confucianism at the same time.
November 11, 2009

Chemistry
I need some help with net ionic equations. I can do single replacement, double replacement, etc., but I don't get stuff like gas forming-reactions or the trends when stuff like a strong acid and water are the reactants. Examples: 1. Moist sodium hydroxide reacts with ...
November 7, 2009

Physics
A sled is dragged along a horizontal path at a constant speed of 1.5m/s by a rope that is inclined at an angle of 30 degrees with respect to horizontal. The total weight of the sled is 470N. The tension in the rope is 240N. How much work is done by the rope on the sled in a ...
November 7, 2009

Physics
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. An 850-kg helicopter rises from rest to a speed of 6.9 m/s in a time of 3.8 s. During this time it climbs to a height of 9.4 m. What is...
November 2, 2009

Physics
An 825-kg race car can drive around an unbanked turn at a maximum speed of 59 m/s without slipping. The turn has a radius of curvature of 135 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 2700 N on the car. a) What is the ...
October 29, 2009

English
"My hand was positioned as if I was holding an orange to the piano, just as she said." Is it "I was" or "I were"? People normally say "I were", but I don't know if that's actually grammatically correct. Thanks!
October 21, 2009

Chemistry
I need some help with writing reactions. I have the following to write out: a. the hydration of copper sulfate b. the reaction of liquid sulfuric acid to form aqueous sulfuric acid c. the reaction of calcium oxide w/ water to form calcium hydroxide For a, I know copper sulfate...
October 4, 2009

Physics (repost)
(I'll try to describe this the best I can, it's a little hard without showing a picture) This question deals with projectile motion: An archer is standing 150 meters above another archer 450 meters away [so visually the 150m and 450m make the right angle]. The archer ...
September 27, 2009

Physics
(I'll try to describe this the best I can, it's a little hard without showing a picture) This question deals with projectile motion: An archer is standing 150 meters above another archer 450 meters away [so visually the 150m and 450m make the right angle]. The archer ...
September 27, 2009

math
g(x) = abs(f(x)) [abs = absolute value] How exactly do I explain this transformation? I don't think "y-values turn positive, matching x-values of f" works very well. An example of another transformation: g(x) = 3f(x) ~Vertical dilation by a factor of 3. So how do...
September 20, 2009

finance
14. Lear, Inc., has \$800,000 in current assets, \$350,000 of which are considered permanent current assets.
September 20, 2009

U.S. History
What exactly were the colonists' reactions after the King issued the Proclamation of 1763? I know "shocked" and "feeling like they can't doing anything without England stepping in" are the obvious ones, but was there anything really specific? On the...
September 19, 2009

finance/math
N-84 (7*12) I\Y-12% P\Y-1 C\Y-1 PV-(8000) PMT-0 FV-108,994,326 I think you do it this way but the number is too big...
September 6, 2009

Chemistry
why are diamond tips used on industrial drills?
September 6, 2009

algebra
my teacher wants us to do problems 1-99 in our books, he wrote it on the board like this; "EEO #1-99" what dose EEO mean?
August 26, 2009

Math
Graph and identify the kind of conic the graph represents: a. x(t)=3 cos t y(t)=3 sin t on [0,2pi] b. x(t) =2 cos t y(t) =5 sin t on [1,5] I tried graphing A on my TI-89 calculator as y(1)=3 cos x and y(2)=3 sin x. All I see are two wave-like graphs crossing each other; I don...
August 11, 2009

Math (repost)
Graph x = y^2-6y+11 a. In function mode using two functions b. In parametric mode I already figured out how to graph it in functions, which is +/-sqrt(x-2)+3. The graph is a sideways parabola in the first quadrant opening to the right. I have no idea on how to come up with ...
August 9, 2009

math
Graph x = y^2-6y+11 a. In function mode using two functions b. In parametric mode I already figured out how to graph it in functions, which is +/-sqrt(x-2)+3. The graph is a sideways parabola in the first quadrant. I have no idea on how to come up with parametric equations for...
August 9, 2009

Math
Thanks! That really helps. However, what about the Cartesian equation? Am I on the right track with that?
August 9, 2009

Math
(With a TI-89 calculator) Graph x(t) = 3t^2 and y(t)=2-2t on [0,1]. Write a Cartesian equation that models this graph. Identify the initial and terminal points. I graphed both equations, but I didn't really get what [0,1] meant. I think it's an interval. Also, with the...
August 9, 2009

Technology in Health Services
Imagine you work for a health care or human service organization that does not use an intranet. Write a proposal to management that lists the elements of an effective intranet, why each element is important, and the benefits of building an intranet as opposed to only using the...
June 7, 2009

pronoun case
Which is proper english and why? 20a. My best friend and I are going to Hawaii this summer. 20b. My best friend and me are going to Hawaii this summer.
May 22, 2009

literature
The Call of the Wild, the supplies brought on the sled of Hal, Charles, and Mercedes, taken symbolically, represent A. their defining success in terms of possessions. B. life triumphing over death. C. an idealistic lust for life. D. an effort to bring civilization with them.
May 19, 2009

science
according to scientific hypothesis, how were earth's oceans formed? when do scientists hypothesiz they formed?
April 6, 2009

medical terminology/biochemistry
To fully eliminate all infectious microorganisms, which of the following measures must be used? A. Cleaning B. Washing C. Disinfection D. Sterilization
March 25, 2009

Math
Which of the following are examples of multiplicative inverses? 1) csc x and sin x 2) tan x and cot x 3) cos^-1 and cos x 4) ln x and e^x A. All of these B. 1 and 2 C. 1,2, and 3 D. 3 and 4 I know it's not all of them...but I'm leaning toward B. Help please? Thank you!
March 8, 2009

Linear Algebra
In 3-space, a plane abc is spanned by three points a, b, c. The point x does not lie on this plane. I'm trying to find the formulas used to find the point p on abc with minimal distance to x. I know the point p must be perpendicular to the point p and the plane. So, I ...
March 1, 2009

physics
A sled with a mass of 9.50 kg moves in a straight line on a frictionless horizontal surface. At one point in its path, its speed is 2.80 m/s; after it has traveled 2.50 m beyond this point, its speed is 6.50 m/s. Use the work-energy theorem to find the force acting on the sled...
February 25, 2009

physics
i still dont understand
February 25, 2009

physics
A soccer ball with mass 0.410 kg is initially moving with speed 4.30 m/s. A soccer player kicks the ball, exerting a constant force of magnitude 44.0 N in the same direction as the ball's motion. Over what distance must the player's foot be in contact with the ball to ...
February 25, 2009

Math
How do you figure out the csc(-390deg)? Thank you very much!
February 25, 2009

math
In a bottling company, a machine can fill a 2-liter (L) bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many 2-L bottles can be filled by the machine in 2 h?
February 17, 2009

English
What is a unnecessary shift, necessary shift, and a no shift?
December 4, 2008

math
2x+2x+2x 6x
December 4, 2008

Chemistry
What's the difference between ionic and covalent bonding? ~thank you
November 23, 2008

Cultural Diversity
What are pertinent issues between Native Americans and the federal government?
November 21, 2008

chemistry
i am not doing it right , first i got Hydrogen and then Helium...im not sure what im doing wrong
October 16, 2008

chemistry
A sample of neon effuses from a container in 73 seconds. The same amount of an unknown noble gas requires 149 seconds. Identify the gas.
October 16, 2008

algebra
keisha told her swim coach that she would swim at least half a mile. If one lap is 50 yards, what is the fewest number of laps she must swim?
October 15, 2008

algebra
jack and jessica earned the same amount last wek. They both work for the same hourly rate. Jack worked 18 hours and had \$42 deducted from his pay. Jessica worked 15 hours and had \$18 deducted from her pay. what was each person's last week salary?
October 15, 2008

chem
The air in a bicycle tire is bubbled through water and collected at 25 C. If the total volume of gas collected is 5.65 L at a temperature of 25 C and a pressure of 735 torr, how many moles of gas was in the bicycle tire?
October 13, 2008

chem
thank you!
October 10, 2008

chem
im not sure how to approach the problem i got 11.6 L
October 10, 2008

chem
Use the molar volume of a gas at STP to determine the volume (in L) occupied by 10.5g of neon at STP.
October 10, 2008

Chemistry
How can i find the manganese content of tea?
October 9, 2008

AP World History
On comparing Rome and Han China in a practice comparative essay for the AP Exams: "Rome and Han China had similarities in society, government, and how their empire fell, as well as differences in these same three areas." Is this a good thesis statement? If not, I'...
September 27, 2008

AP World History
On slaves in Rome and China (753 B.C.E.-600 C.E.): What are some of the passive-resistance tactics that slaves resorted to, and what did they achieve by these actions?
September 25, 2008

Geography
How do I find and plot the coordinates for all of the Florida huricaines in 2008 from Aug 28th until now?
September 22, 2008

math
Describe some practical applications for fractions in your daily life. What are the challenges you have experienced regarding the use of fractions? Explain your answers.
September 21, 2008

Math
(4b^4+2) - (7b^2-5) - (6b^4-2b^2) How do you exactly solve/simplify this? I get confused with the signs when it comes to adding/subtracting terms like these. Thanks much!
September 20, 2008

Math
Oh, wait...It should actually be this (sorry!) {[(6x+1)^3][(27x^2+2)}-{(9x^3+2x)](3)[(6x+1)^2](6)} over [(6x+1)^3]^2
September 10, 2008

Math
[(6x+1)^3][(27x^2+2)-(9x^3+2x)](3)[(6x+1)^2](6) over [(6x+1)^3]^2 Help me simplify please? Here's what I got so far: [(6x+1)^5]{(27x^2+2)-[x(9x^2+2)]}(18) over (6x+1)^6 It says in the back of the book (it's an odd problem that the answer is 27x^2-24x+2 over (6x+1)^4 ...
September 10, 2008

Math (Calculus?)
sorry about that. it was written like that in the book o.o'' It should be this (I think): [x^5*(-3)*[(x^2+1)^-4]*(2x)] - {[(x^2+1)^-3] * [(5)x^4]} over (x^5)^2
September 9, 2008

Math (Calculus?)
[x^5(-3)(x^2+1)^-4(2x)]-(x^2+1)^-3(5)x^4] / (x^5)^2 Can someone show my how to simplify this, step by step? So far I got that the denominator should be x^10 because of the exponents, and (x^2+1)^-4 could be simplified as [(x+1)(x-1)]/4, likewise with (x^2+1)^-3, except the ...
September 9, 2008

Math
5x^2 + 26x + 5 Besides guessing and checking, is there any other way or "trick" (preferably not time-consuming) to factor polynomials whose leading coefficient is NOT 1? Thanks much!
September 3, 2008

Math
(2x^2)^3/2 / 2^1/2x^4 can someone tell me how to simplify this? thanks much!
August 31, 2008

algebra II
this is called equations utilizng inverses how would i solve this problem: [ 15 18 ] = [ 6 -3] [ 34 27 ] [ 7 -2] A
August 27, 2008

algebra ll
how do i find the inverse of the matrix [ 10 9 ] [ 8 -1 ]
August 26, 2008

science
Describe at least three potential indoor air quality (IAQ) hazards in your home. What are the possible health impacts of each hazard? Do you believe your health is at risk based on your exposure to the three IAQ hazards? Why or why not? What can you do to reduce exposure to ...
August 6, 2008

English
Is there a site where it can accurately check grammar? I use the the Word grammar/spell check, and it still messes up at times :/ thanks much!
July 27, 2008

science
Provide a one sentence description of typical precipitation and temperature for summer and winter. Use terms such as cool, cold, warm, hot, dry, and wet. Then, identify the characteristics of a plant and animal that is seen regularly in your region. How do the characteristics ...
July 24, 2008

algebra
hi i was wondering if u can help me with this problem which says...stopping distance is breaking distance plus your reaction time. suppose you are told that the stoppin distance D is related to speed S by this equation: d(s)= 0.05s to the 2nd power+2.15s+1 and i need to slove ...
July 20, 2008

Law and Ethics
I submitted my HIPAA RESEARCH PROJECT and it was graded within 3 days. I received an 84!
July 20, 2008

Law and Ethics
I am also taking this same course with Penn Foster for Health Information Technology. I have been stuck on this research paper for about 1 month now. I'm wanting to finish it so badly. I have most of the answers except the one about the written privacy policies and ...
July 20, 2008

INTRODUCTION TO PSYCHOLOGY
What are some of the ways that Psychologists attempt to explain human behavior? One of the major debates within the field of Psychology is the degree to which nature versus nurture shape human behaviors and traits. What comprises our nature? How would you define nurture? How ...
July 16, 2008

science
thank you for the tip
July 15, 2008

science
Create an outline of the risk of using Malathion according to the four steps of risk assessment presented in Ch. 4, p. 73, Figure 4.1: o Hazard identification o Dose-response o Exposure o Risk characterization · Decide your vote for the city council based on your ...
July 15, 2008

Environmental Science
Post your response to the following: Reflect on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position.
July 10, 2008

AP World History
A study question for George Orwell's "1984": Why is what the Party does to Winston UNLIKE other times in history when enemies were dealt with? The answer's going to be somewhere from the beginning of Part Three to Ch. IV, I'm just not sure what to answer...
July 4, 2008

World History
"A hierarchial society was only possible on a basis of poverty and ignorance." - From George Orwell's 1984 My first thought for the meaning of this quote was that a leveled society (low-med-high "class") would only be established by the poor and ...
June 26, 2008

205
In three of last four presidential races, the winner of the iowa repbulican primary has not captured the republican nomination. Therefore, the winner of the next iowa republican primary will not capture the republican nomination
June 4, 2008

Social Studies
Who deliberately stayed away from the covention during a crucial vote so that his colleague could cast Maryland's vote with a smaller state? Was it George Washington, Luther Martin, Danial St.Thomas Jenifer, or Abraham Baldwin.
May 28, 2008

Math - Geometry
Another question, hehe: By "two ends", you mean the radii of the circles?
May 21, 2008

Math - Geometry
A cylindrical solid has a cylindrical circular hold drilled out of the center. Bascially, it's a circular cylinder with a hollow spot right down the middle. Find the surface area of the resulting solid. radius of larger circle: 2in radius of smaller circle (hollow area): ...
May 21, 2008

english
what are the branches of english
May 7, 2008

Geometry
Find the area of a regular pentagon with radius 3cm. Round to the nearest tenth. No picture is given, but I believe a circle can surround the figure. I'm not really sure how to find the area of the figure when the side length isn't given. Can you guys help me? Thanks ...
April 19, 2008

physics
did anyone get the answer to this problem?
April 15, 2008

religion
The basis of Jewish faith is found in which part of the Bible?
April 14, 2008

science
what is the name of the force that slows the boat down
April 8, 2008

algbra
It was an acher!
April 6, 2008

Geometry
The question is to find the measure of arc PQ in Circle A. The point A is the center of the circle, and the chords PR and SQ intersect at the center. Arc PQ is (3y-10), while arc SR is (2y+20). I know there's a theorem that states that when two chords intersect in the ...
April 1, 2008

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