Sunday
March 26, 2017

# Posts by Anna

Total # Posts: 2,659

Math - Solving Graphically
1. 8 + 7x =2x² I used my calculator to graph this and got x is about 4.41 and -.904 2. 1/3x² - 15 = 0 Again, I graphed on my calculator and got x is about 6.70 and -6.70 Are these answers accurate and is there another way to solve?
September 1, 2010

psychology
How has early memory research concerning the growth of cognitive perspectives in psychology changed over the course of the 20th century?
August 28, 2010

Geometry
A wheel with a radius of 13 rolls along level ground and makes 4 1/2 revolutions per second. Assuming the circumference to be 3.1416 times the diameter, how far does the wheel travel in 8 seconds?
August 23, 2010

chemistry
HAHAHA THAT IS SO EASY HAHAHA
August 15, 2010

Physics
The flywheel of a steam engine runs with a constant angular speed of 321 rev/min (in the counterclockwise direction). When steam is shut off, the friction of the bearings stops the wheel in 1.9 h. (a) What is the constant angular acceleration, in revolutions per minute-squared...
July 27, 2010

math
The winning time int he womens Olympic 200 meter dash w is a function of the year x in which the event was run, starting with 1948 and is given by the equation w= f(X)= -0.0661X+152.8 A. PREDICT THE WINNING TIME FOR THE 1988 OLYMPICS. ( THE ACTUAL TIME WAS 21.34 SECONDS) B. ...
July 26, 2010

Finance
Bond X is a premium bond making annual payments. The bond pays an 8 percent coupon, has a YTM of 6 percent, and has 13 years to maturity. Bond Y is a discount bond making annual payments. This bond pays a 6 percent coupon, has a YTM of 8 percent, and also has 13 years to ...
July 23, 2010

Physics-Gravity
A 17.0-kg satellite has a circular orbit with a period of 2.31 h and a radius of 9.10×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 8.10 m/s2, what is the radius of the planet?
July 17, 2010

Physics-Gravity
then how do i get the altitude after i solve for r subtract the radius of pluto?
July 17, 2010

Physics-Gravity
A orbiting satellite stays over a certain spot on the equator of (rotating) Pluto. What is the altitude of the orbit (called a "synchronous orbit")? Do I use T^2=4pi^2/GM x r^3?
July 17, 2010

PSYCHOLOGY
A. some undiscovered third variable that is independent of nature and nurture has the largest influence on development
July 17, 2010

Math
If 7y+9 represents an odd integer, which of the following represents the next smallest odd integer? a. 7(y-2)+1 b. 7(y-2) c. 7(y+3) d. 7(y+2) e. 7(y+1)
July 6, 2010

MATH
IF XYZ AUTO CO SOLD 23,000 VEHICLES IN 1999, HOW MANY WERE SUV'S? IF 7,650 TRUCKS WERE SOLD IN 1999,HOW MANY TOTAL VEHICLES WERE SOLD IN 1999? IF 3,750 2-DR CARS WERE SOLD IN 1999, THEN HOW MANY 4-DR CARS WERE SOLD IN 1999? THE FOLLOWING INFO APPEARED IN A PIE CHART - 4-DR...
July 6, 2010

English
When a character has an aside, he or she is speaking dirextly to another character. True or False? I know that aside is something a character says to either the audience or another character, which the rest of those on stage are not supposed to hear. So is it False? Just ...
July 3, 2010

Chemistry
also, the Molarity of EDTA was determined to be .0404
July 1, 2010

Chemistry
Hello, we recently did a lab in our chemistry class to analyze an Unknown amount Calcium Carbonate which was titrated with EDTA. Our titration results were: mass of the unknown CaCO3 was 0.172 g and the mL of EDTA added was 30.7. How do I find the percent mass of Ca?
July 1, 2010

physics
A bothersome feature of many physical measurements is the presence of a background signal (commonly called "noise"). In Part 2.2.4 of the experiment, some light that reflects off the apparatus or from neighboring stations strikes the photometer even when the direct ...
June 29, 2010

English
1. Reviewing word choice is a good strategy for the Proofreading phase of the Writing Process. True or False? I think it is False as reviewing word choice should be in the revision phase, right? 2. It is easier to determine the form of one's writing if the purpose of ...
June 27, 2010

communication
Repeating in your own words the verbal content of the critic's message is: paraphrasing. checking for feelings. checking for inferences. buying time with limited agreement.
June 24, 2010

communication
The emphasis given to one or more words in a sentence is: volume. stress. pitch. tone of voice.
June 24, 2010

communication
Which of the following is a characteristic of communication in high-context cultures? Written agreements are binding. There is reliance on nonverbal signs to communicate. Oral agreements are not binding. There is a preference for direct communication.
June 24, 2010

literature
i need to know all of the syllables in words
June 14, 2010

math/Probability
what is the probability of rolling a sum that exceeds 4 with two dice
June 11, 2010

algebra1
actualy you can factor out 2
June 7, 2010

chemistry
c4h4o4
June 5, 2010

ss
how did supporters of andrew jackson try to make the political system more democratic
June 3, 2010

Science
What evidence indicates that there is competition taking place among the plants in a natural setting? How do limiting factors play a role in the extinction of a population? How important are the decomposer's in a biological community? How do plants obtain N they need where...
June 2, 2010

Chemistry
Why is the final temperature of the metal and water mixture closer to the initial temperature of the water than the initial temperature of the metal
June 2, 2010

Chemistry
Why is the final temperature of the metal and water mixture closer to the initial temperature of the water than the initial temperature of the metal
June 2, 2010

Chemistry
Why is the final temperature of the metal and water mixture closer to the initial temperature of the water than the initial temperature of the metal
June 2, 2010

English
Can you help me remove the "to be" verbs in this sentence? I need to take out the are, have been, and to be some how. Some of the characters in the book are no exception and they have been brought up since birth to be very reserved.
June 1, 2010

Math/Probability
What is the probability of rolling a sum that exceeds four with two dice
May 31, 2010

management
Think of a recently completed group project that you have been involved in. This project may have been a student project, a group project, or an extracurricular project. Briefly describe the situation and choose one of the following to post on the discussion board: Analyze the...
May 22, 2010

marketing
Develop a pricing strategy for your chosen product/service. Discuss what factors will impact your pricing strategy. What pricing method would you use for your product/service and why? These two questions require research using the textbook (Chapter 9). No other resources are ...
May 22, 2010

math
If corn is 12% protein and weighs 56 pounds per bushel, and soybeans are 44% protein and weigh 60 pounds per bushel, what respective combinations of corn and soybean yields per acre produce about the same amount of protein.
May 18, 2010

chemistry
all of them
May 13, 2010

math
the parameter of a rectangular placemat is 72 in. the length is 4 in. find the with and the length
May 12, 2010

chemistry
for Fe + V2O3 -----> Fe2O3 + VO write the two half reactions and calculate voltage
May 12, 2010

psy
just want to know if i am in the right direction make example sentence for praticing generalization, discrimination, extinctiom, spontaneous recovery, positive reinforcement, negative reinforcement, punishment generalization 1.John was frightened by a barking lunging spaie. ...
May 11, 2010

Chemistry
What is the molar mass of a solute if 62 g of the solute in 125 g of water produce a 5.3 molal solution?
May 10, 2010

basic psy
example of classical conditioning acquisition, extinction, spontaneous recovery
May 5, 2010

basic psy
classical conditioning examples of us - the clicking of the gun ur - running away cs - gun shoots cr - the running away from the clicking of the gun are theses correct examples
May 5, 2010

Environmental Science
If you want more information you cold go on to google and type in "Coral reefs powerpoint" Then click on the eighth site on that first page. It gives good dteailed points about what you may be looking for. P.S all the best on ur research paper
May 4, 2010

chemistry
Sodium chloride is decomposed into the elements sodium and chlorine by means of electrical energy. How many grams of chlorine gas can be obtained from 2.50 mol NaCl?
May 4, 2010

College Health
Two short advices, instead of Putting College Health as your subject, just leave it as Health, or Important Health; something like that. My other advice is don't insert 29 long questions on one whole post; people probably get tired skimming through it. Do around six ...
May 3, 2010

Chemistry
95.4g/mol
May 3, 2010

Chemistry
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 3.5 Angstrom, and the density of the crystal is 7.39g/cm^3. Calculate the atomic weight of the element. A= ? g/mol
May 3, 2010

english
This is an inventor and his/her invention.cyrusmccormickreaper
May 3, 2010

english
I need five animals out of this.geornniebsclkmroteclaoy
May 3, 2010

Physics
An athlete twirls a 1 kg hammer tied to the end of a 1.3 m rope in a horizontal circle the hammer moves at the rate of 1.0 rev/sec. (a)what is the centripetal acceleration of the hammer? (b) what is the tension in the rope?
May 3, 2010

You could use ribbons, glitter, and all those other crafts. You could just look up on the internet for lists of them.
May 3, 2010

spanish
From how I can translate it it reads, "you like my dog heat".
May 2, 2010

English
Here is a quote on inner beauty. You will probably be able to pick out some deep details from here: "Beauty is how you feel inside, and it reflects in your eyes. It is not something physical."
May 2, 2010

Chemistry
How many mL of 18 M H2SO4 are required to react with 250 mL of 2.50 M Al(OH)3 if the products are aluminum sulfate and water? How do i solve this?
April 30, 2010

You could read throught the notes you have taken in class, and refer to the teext for extra bits of information. Cornell notes can be helpful as well. I suggest you go on to google, and type in : cornell note taking method After typing that in, click on the second site. You ...
April 29, 2010

English
Hey Franco, What's up? 1) It would make more sense with has. He is been, does not make sense. You could write it as He is guilt-ridden.... It makes more sense with has, so just take the is out, and that sentence will be perfect 2) There are numerous ways to say this ...
April 29, 2010

Com 220
How would I compose a full sentence outline on same sex marrige using this thesis: The controversy around same sex marriage is centered in religious or moral convention.Please help an example would be nice. I really do not know where to start.
April 29, 2010

chemistry-check my work
for each of the following pairs, determine which acid is the stronger acid. A. H2S, HS- B. H2SO3, H2SeO3 C. HBr, H2Se D. HIO4, HIO3 E. H2S, H2O a. H2S b. H2SO3 c. HBr d. HIO3 e. H2S
April 28, 2010

grammar
i need the 5 sentences
April 28, 2010

grammar
• Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. • Mark each verb used in bold and, in parentheses, identify the specific tense used.
April 28, 2010

chemistry
What are the concentrations of [H+] and [OH-] in each of the following. Determine the pH and pOH for each solution. A. 1.25 M HCl B. 0.25 M NaOH C. 0.035 M Ca(OH)2 D. 0.50 M HNO3 I know how to do the pH and pOH I just do not know how to figure out the both concentrations.
April 28, 2010

chemistry
okay, can the ph go over 14? 5.80/40=1.45 -log(1.45)= -0.16 14-^-0.16= 14.16 i must be doing something wrong
April 28, 2010

chemistry
a 1.00 L aqueous solution contained 5.80 g of NaOH. what is the pH of the solution? Can someone help me out with the setup of this?
April 28, 2010

For Franco
Hey, here are your other answers 1) She is wearing a long-sleeved cotton polo shirt with a slogan in the front and one in the back. change your ending to: with a slogan on the front and back 2) How do you call a T-shirt with a collar that is half buttoned-up? Do you mean: What...
April 27, 2010

English
Sorry for #7 it is good to be specific, so you should say what she's actually wearing on her eyes. Like mascara, eyeshadow. You could just say she has some eye makeup on.
April 27, 2010

English
You don't have to be really specific on evry number You could just say he's wearing....(Number one looks good) For number 2 you say that he is wearing a "long sleeved cotton polo" You cold just say he is wearing a long sleeved cotton polo shirt. Don't ...
April 27, 2010

physiology
Which of the following is TRUE regarding the small intestine? The small intestine secretes roughly the same volume of fluid as it absorbs Segmentation is responsible for mixing the chyme and bringing it in contact with the intestinal wall for absorption The most common form of...
April 26, 2010

physiology
Which of the following statements is TRUE regarding bile? Bile is produced by the gall bladder, and secreted into the duodenum Bile is produced and secreted in response to CCK, which is in turn secreted primarily in response to high acidity of duodenal chyme Bile is most ...
April 26, 2010

physiology
Is the following statement True or False, and Why? The presence of a hyperosmotic solution in the duodenum will stimulate gastric emptying. True; this helps to speed up the absorption process True; the hyperosmotic solution draws contents in from the stomach False; this causes...
April 26, 2010

physiology
Which of the following statements regarding pepsin is FALSE? Pepsin is derived from the inactive enzyme pepsinogen Pepsin primarily works to digest fatty acids Pepsinogen secretion is stimulated by increased protein concentration, gastric distension, and the sight/smell/taste...
April 26, 2010

physiology
Gastrin is a hormone secreted into the __________ by the ___________. Blood; stomach Lumen; stomach Lumen; pancreas Blood; small intestine
April 26, 2010

physiology
Long reflexes regulating GI function differ from short reflexes in which of the following ways? Short reflexes involve the local GI nerve plexus The effectors of short reflexes are GI tract smooth muscle and glands Long reflexes involve autonomic efferent neurons Long reflexes...
April 26, 2010

physiology
Which of the following statements pertaining to protein digestion and absorption is FALSE? The majority of amino acids and peptides are absorbed in the upper portion of the small intestine. Protein can enter the GI tract via ingestion or via secretion as enzymes or mucus ...
April 26, 2010

physiology
Which of the following is FALSE regarding carbohydrate digestion and absorption? Carbohydrates are broken into monosachrides prior to absorption The removal of sodium and monosachrides from the intestinal lumen favors water secretion Monosachrides are primarily absorbed via co...
April 26, 2010

for the following reactions label each species as an acid or a base. Indicate the species that are conjugate acids and conjugate bases. A. HSO4-(acid) + NH3(base)<--> SO4^2-(conj base) + NH4+ (conj acid) B. HPO4^2- (conj base)+ NH4+ (conj acid) <--> H2PO4-(acid) + ...
April 25, 2010

chem homework help
yes, it should have been, thank you i had missed writing that down.
April 25, 2010

chem homework help
can you check my work? Give the conjugate acid for each of the following bases. A. CN- = HCN B. SeO4^2- = HSeO4- C. HCO3- = H2CO
April 25, 2010

Chemistry
40000liter gasoline tank is filled with liquid gasoline with an avg vapor pressure of 20 mm Hg.At 50% saturation, what weight of gasoline would escape to the atmosphere during filling?
April 25, 2010

(Research question)Family Health: Highschool
Is this a good research question? I have to come up with one and this is what I have. 1. Does divorce cause drug abuse in teenagers? My hypothesis would be Divorce does cause drug abuse in teenagers. 2. Or is this one better. Does divorce factor in the drug abuse of a teenager...
April 22, 2010

chemistry
i have another chemistry question posted farther down can u help me out a bit on that one?
April 22, 2010

chemistry
thank you so much
April 22, 2010

chemistry
Methanol is manufactured by the below catalyzed reation using ZnO/Chromate. CO + 2H2 --> CH3OH deltaH -91kJ Does the amount of methanol increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subjected to the following changes? A. the...
April 22, 2010

chemistry
i figured out part C as well t1/2 = 1/K(A) t1/2 = 1/(0.04)x(0.02) t1/2 = 1/8x10^-4 t1/2 = 1250sec t1/2 = 1250s/60m half life = 20.833min Still do not know how to set up part B. Can anybody help out?
April 22, 2010

chemistry
Need some help. have the A part of the question but do not know how to set B or C. Butadiene (C4H6) reacts with itself to form a dimer with the formula C8H12. The reaction is second order in butadiene. If the rate constant at a particular temp is 0.04/(M s) and the initial ...
April 22, 2010

Social Studies
Can you please explain how trade affected the power of kings during the 1500s and the 1600? Thanx
April 22, 2010

name at least two suspensions
April 20, 2010

find all real roots: x^4-6x^2+8=0 and the other polynomial is: 8x^3+1=0
April 20, 2010

algebra 2
any body? need help a.s.a.p
April 19, 2010

algebra 2
find all rational roots of the polynomial 6x^3-13x^2-41x-12=0
April 19, 2010

i need some tips
i worked hard this year thank you all for your help ;)
April 16, 2010

i need some tips
but my teachers didn't tell me anything to study oh and btw is there anything online that has similar test questions and is there any tips that would help me on the test **i am in the 7th grade**
April 16, 2010

i need some tips
okay so now i have this test called tcap and there is A LOT to study and i only have 2 days to study i need help do u have any tips that would help me study or help me ON my tcap test please respond i need as many people to respond because i really need help thank you
April 16, 2010

science
THANK YOU MS. SUE ,YOU ARE ALWAYS ANSWERING MY QUESTIONS :)
April 16, 2010

science
i need to make a gold rube berg simple machine(i think that is what it is called) and i need some ideas and some tips THANK YOU
April 16, 2010

language
victory-victories multiply-multiplies tiny-don't know thirsty-thirstness? justify-justified pray-prays or prayed dry-dryness anniversary-anniversaries? body-bodies rainy-not really sure comedy-comedies crazy-crazyness industry-industries decay-decayed? heavy-heaviness ...
April 15, 2010

language
you take away the y and add an i and then add es and i am sorry :(
April 15, 2010

language
yeah because there is a lot of questions but luckily i am almost done :)
April 15, 2010

language
victory-victories baby-babies country-countries multiply-don't understant enemy-enemies marry-married highway-highways tiny-don't understant thirsty-thirstiness? carry-carries family-familys justify-justifies pray-prayed vary-varies dry-dryness anniversary-...
April 15, 2010

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