Posts by pamela
Total # Posts: 183

Mathematics
Helen give her brother 1/3 of her money.spend 2/5 and save $28.00. A. How much money helen had at first. B.how much money did belen give her brother. 
Maths
Lucas will be twice his brothers age in the next four years. If lucas's brother is now 6 years old, how old is lucas? 
Math
Peter spends 1/4 of his salary on food, 1/3 on clothing and 1/5 on school fees. He saved the rest. What fraction if his salary did he save? 
science
Which of the following is a reason to use parallel sentence structures in a literary analysis essay? 
Math
There are 20 bottles in a box. Each bottle weighs 1 3/4 pounds. How many pounds do all the bottles weigh together? 
statistics
The current rate of success is 70% for 200 students. When the new test is implemented, the rate increases to 85% for the 50 students who pass the test and are allowed into the program. Is this difference significant?  Incidents of xenophobia in your community or any other community
 a. Is TRUE. The test isnt asking for the scale factor, its just asking for the scale. So therefore 1:6 is incorrect. The real answer is 2in:1ft e. Is actually 15ft squared. I am a teacher and i have done this test and know the actual answers these are the corrections to the ...
 thesouthafricangovernmentisnotprovidingenoughwelfareorsubsidiestothepoorandunderpriviledged

sociology
what is the basic logic of probability sampling? How does such concepts as homogeneity, heterogeneity, sampling bias, representativeness, and probability of selection fit into each logic? 
Maths
ABC is an isosceles triangle in which the equal sides are AB and A.If AD is an altitude and BC=1/2AB.Prove that AD^2=15BC^2 
Research and Design
What changes did the Census Bureau make to the conceptualization and operationalization of race in the 2000 census? 
Statistics for the Behavioral Sciences
Complete an independent project, collect data from your observation experiment and perform a oneway, betweensubjects ANOVA on the data using the definitional formula.Include the following: 1. description of research project that includes the operational definition for the ... 
math
A ship leaves POrt P and sails 28km away on bearing of 70 degrees to POrt Q. The ship then turns on a bearing of 160 degrees and sails 21km to POrt R. Find angle PQR, calculate the distance PR, Determine the bearing of R from P. angle PQR = 180 degrees  160 degrees = 20 degrees 
Geometry
I know that a rectangular room measures 2300 sq. ft, how long and how wide would the rectangle be? 
FRENCH ! (:
Dialogue practice: Please check my grammar and sentence structure. This is meant to be an interview dialogue. ** whatever is in () I know I have to add the accents later on. I just wasn't able to on my device now. 1.) Qu'estce qui arriv(e) heir? (what happened ... 
math
On Monday, Carlos ran 1/8 of a mile. On Wednesday, he ran 5/6 of a mile. Carlos ran 3/8 of a mile on Friday. Which day did Carlos run farthest?  An urn contains7 white balls and 3 yellow balls. If Tim chooses 8 balls at random from the urn, what is the probability that he will select6 white balls and 2 yellow balls? Round your answer to decimal places.
 What do you need to do to extend a number if attern

Healthcare
Identify 3 tools from the CMS website that are helpful to achieving the goals set forth by an organization?  A ribbon is 40 inchest long. We want to cut the ribbons into pieces. Each piece will be 2/3 of an inch. How many pieces will we have?
 .656

economics
are there any welfare or subsidy payments that should be received or added 
algebra
t/2 + t+3/3t = 1/t I got the lcd of 12t I stuck at the step of solving and i'm not getting t=4 
math
Part A: Which two numbers represented by dots on the number line above are opposites? Part B: Explain how the numbers' relationship to 0 makes them opposites. the dots are 15, 5, 10, 15, 20, 25, and 35  can you answer my question people?

math
Mr. Howard wrote the following expressions on the board in order to determine which expressions are equivalent and how they are equivalent. 60x+24, 3(20x+8, 4(15x+6) Explain which of these expressions are equivalent using properties of operations, and then determine how other ...  please i need to get the answers asap. don't just ignore mine and others while you answer the newest ones.

Math
1. Directions: Type your response in the box. Part A: Which two numbers represented by dots on the number line above are opposites? Part B: Explain how the numbers' relationship to 0 makes them opposites. the dots are 15, 5, 10, 15, 20, 25, and 35  thanks

Calculus
Derivative of the implicit Function: arctan(x^5y)=xy^5 Here is where I am at. I am pretty frustrated: arctan(x^5y)xy^5=0 1/1+(x^5y)^2 * (d/dx(x^5)*y+x^5*d/dx(y))(d/dx(x)*y^5+x*d/dx(y^5))=0 1/(1+x^5y)^2 * (5x^4y+x^5dy/dx)  (y^5+x^5y^4dy/dx) (5x^4y)/[(1+x^5y)^2] + (x^5dy/dx... 
math
5hexponent2/5 =3645/5 find the value of h 
math
Write an equation which models how old in years each of you will be when you are three times as old as the younger person use age 10 and 48?  booles theories of ligic set the foundation for what aspect of computing today

physics
A stationary speaker is emitting a sound of frequency 1330 Hz. The air has a temperature of ^oF. Taking right to be positive, a person is moving toward the source (to the left) at 8.2 \frac{m}{s}. The person will hear a frequency of ... f = 
math lit,business studies,accounting and computer
Can I be an accountant when doing these subjects? 
chemistry
what is the total mass of Rn222 remaining in an original 160mg sample of Rn222 after 19.1 days?  Which careers can I do

physics
A ball is projected upwards from a platform 8m above the ground,with an initial velocity of 3m/s.How long does it take for the ball to reach the ground.  Thomas company pays him 6% commission with a 1350.00 drawing account each month. if his sales last month totaled 152480.00 how much commission is owed to Thomas?

Algebra
Please help me find the value of the annuity for the following: a1= $8000, I=0.06, n=10 $8,000 invested for 10 years at 8% compounded annually$8,000 invested for 10 years at 0.06% n = 10 Thank you. 
math models
If $3800 is invested in a savings account for which interest is compounded quarterly, and if the $3800 turns into $4300 in 2 years, what is the interest rate of the savings account? 
Math 140
To help pay for a class trip at the end of the senior year, the junior class at a high school invests $1800 from a fundraiser in a 18month CD paying 2.6% interest compound monthly. Determine the amount the class will receive when it cashes in the CD after 18 months. 
s
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from ...  3765
 Wha are welfare payments or consumer subsidies

Life orientation
What, according to the BCEA with regard to the contraventions in work place?  1.squander 2.digress 3.rigor 4.incentive 5.devastate 6.succumb 7.indispensable 8.intermittent 9.curtail 10.incorporate those are my answers
 Hi do you still use this? and if so can I show you my answers?
 hey gabriela, chapter 6 Chapter 6 Ten Word Parts in Context 1. ann, enn B. year 2. audi, audio C. hearing 3. cycl, cyclo A. circle 4. –hood A. state of 5. hyper B. more than normal 6. –ly B. in a certain way 7. non B. not 8. path, pathy A. feeling 9. pend C. ...
 1. intrinsic 2. alleviate 3. revulsion 4. covert 5. cynic 6. demise 7. virile 8. benefactor 9. infamous 10. speculate are these correct?
 I am really have a hard time I need help. Prime factorization of 343

Statistics
A standard deck of cards contains 52 cards. Of these, 12 are face cards (kings, queens, and jacks), 13 are hearts, 13 are clubs, and 3 of these are both hearts and face cards. A card is drawn. What is the probability that the card is either a jack of hearts or a queen of clubs? 
Chemistry hnrs
what is the electron configuration of vanadium? 
Science 2
How does TCDD act as an endocrine disruptor? 
Science
What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people? 
Science
what does LD50 stand for in science terms? 
Science
What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people? 
Science Biology
What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people?  ?????

science
what are atoms 
geometry
An open rectangular glass tank with a horizontal base PQRS measures 80 cm by 50 cm by 34 cm. 110 liters of water is poured into the tank. v The tank is tilted towards edge PQ until the water just reaches the edge TU. w Calculate the value of d. s  Sorry, forgot to write that down. The Cremaster Cycle

Classical Mythology
Throughout this film, characters appear, or things happen, that are reminiscent of people or events in classical mythology. What do they make you think of? Pick 45 things (people, incidents events, costumes, whater) and explain waht they remind you of from classical mythology...  radio active radium(226)

Calc
Radioactive radium () has a halflife of 1599 years. What percent of a given amount will remain after years? 
Physical science
The engine of a car is being lifted out of the car by using a pulley system. The weight of the engine is 8000N. Use a scale diagram to determine the horizontal force, F1 that a mechanic has to use to hold the engine in such a position that the rope makes an angle of 30degrees ... 
Thesis statement
I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help! 
Thesis statement
I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help! 
chemisty
14KMnO4+4C3H5(OH)3>7K2CO3+7Mn2O3+5CO3+16H2O how to do it help me if you can I spend days to find this but I couldn't please help mee..... 
Algebra: Statistics
Five years ago, you bought a house for $151,000, with a down payment of $30, 000, which meant you took out a loan for $121,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information. ... 
Intermediate algebra
The current in a typical mississippi river shipping route flows at a rate of 4mph. In order for a barge to travel 24mi upriver and then return in a total of 5hr, aproximately how fast must the barge be able to travel in still water? 
College Algebra
Evaluate the function y=2.55^(x+1) at the value x=1.83 
math
what is 216.3 divided by 10.5? please show the work 
Chemisty
Consider a hydrogen atom that goes from the n = 2 to the n = 1 state. (a) Calculate the wavelength, in nm, of the photon emitted. (b) What part of the electromagnetic spectrum is it? 
Chemistry
What is the frequency of light having a wavelength of 5.6 micrometers? 
science
scientist do their experimental test more than once so they can reduce the effects of chance errors this is called conducting what 
Physics
A runner runs around a circular track with a radius of 50m.if he runs half way round the track from a to b.am i correct if i say his distance is 100m? 
Chemistry
4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks 
Chemistry
In this balanced equation 4Al + 3O2 = 2Al2O3. When 0.54 mole aluminum is reacted in a closed container with 7.80 g oxygen, how many grams of aluminum oxide can form. Please show steps to work out. Thanks  oh ok thanks again good night
 Thanks! i have one more question that i cant seem to find: how did the first Global Age affect culture? should i just ask my Global teacher for help and leave it blank til then?
 is this right?: socialy Native Americans were at the bottom of the social pyramid and the fully spanish were at the top. political the spanish were allowed to force Native Americans to work for them economic trade was great but many people died and .... i need help with ...

Global Help!
Describe social, political and economic aspects of spanish rule in the Americas. I cant find this answer anywhere help please!! 
Social Studies
1. Describe social, political and economic aspects of spanish rule in the Americas. 2. How did the first Global Age affect culture? 3. Why did the slave trade prosper? what effects did it have on Africa? 4. How did the colonization of the Americas affect Europe?  oh okay sorry.. so if I answer them myself may you tell me of they are right?

Social Studies
1. describe the achievements of the Maya, Inca, and Aztec. 2. what were the major similarities and differences between the Maya, Inca, and Aztec? 3. why did the Europeans begin to explore? 4. How did the Spanish conquer the Aztec and Incan empires? 
algebra
Annual profit in thousands of dollars is given by the function,p(x)=200square x3 +10,000,where x is the number of items sold in thousands, x less than 3. describe the meaning of the numbers 3 and 10,000 in the formula. find the profit for 5 different values of x. graph the ...  yes, each halfcell contains 1.00 L of solution so that is the volume thank you!

Chemistry
A zinccopper battery is constructed as follows at 25°C. ZnZn^2+ (0.15 M)Cu2+(3.00 M)Cu The mass of each electrode is 200. g. a) Calculate the cell potential when this battery is first connected.  i got this to be 1.14V b.) Calculate the cell potential after 10.0 A of... 
chemistry
our lab experiment was Isolationa nd Identification of the Major Constituent of Clove Oil. We know the major component is Eugenol, but our professor wants us to write the equations for the extraction of eugenol from the distillate with dichloromethane and then the equation for...  Thank you so much!!
 No they're not in the book because she discussed these questions in class. the class was suppossed to take notes on what she was saying. We barely use textbooks because she plans lessons and we have to go by what she says. I missed a couple of her classes. can you with any...
 I have a test on this tomorrow and I can't seem to find the answers to these questions

social studies
Help! 1. Describe the social strusture of feudal society. 2. what were the similarities and differences between feudalism in Euope and Japan? 3. How did the Roman Catholic Church influence social, political, and economic life during the Middle Ages? 4. How did England, France ... 
Europe
how did europe's geography affect its development? 
epidemiology
For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department. You are not sure ... 
strayer
For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department. You are not sure ... 
math
Suppose the 435 members of the house of representatives are placed on committees consisting of more than 2 members but fewer than 30 member of members and each member is to be on one committees. Each committee is to have an equal number of members and each member is to be on ... 
5th grade
what is 9 /24794