Tuesday
September 30, 2014

Posts by Maria


Total # Posts: 1,506

Math: Calculus
Assume that a population size at time t is N(t) and that N(t)=40 x 2^t , t>0. Show that N(t)=40e^t ln2 Can someone please guide me step by step on this question? Im really confused. thanks. I tried to work it out, and this is what I got. N(t)= 40 x 2^t = 40 x ln 2^t = 40 x ...
October 17, 2011

algebra
37/16
October 16, 2011

math
Suppose the clerk had to stack 200 boxes of cereal in a triagle. How many boxes would be on the bottom row?
October 12, 2011

algebra 2 word problems
Yup, they're correct, but for number one they ask you to use the variable c to represent the number of cases. So I would rewrite it as 11c
October 10, 2011

Scientific Notation
I'm having some trouble solving this problem: 32x10^2 / (4x10^2)^3 Is it possible to have a negative value in scientific notation?
October 10, 2011

english
Consider the sentence "The peace accord proposed that a neutral army be deployed to act as a buffer between two sides of a dispute." Is "buffer" a correct example of "personification"? Or perhaps another rhetorical device? Thank you.
October 10, 2011

Math
How many of the 28 students in Andy's class are boys, if 4/7 are girls?
October 9, 2011

Math
Joe keeps all his socks in one drawer. He has 7 blue socks and 9 brown socks. If he reaches in the drawer without looking, what is the least number of socks he can take out to be sure of getting a pair of the same color?
October 9, 2011

Chemistry
Calculate [H3O+] and [OH-] in 0.22 M KOH(aq). This is a strong base.
October 5, 2011

physics
some university students loaded their things into a toboggan. the toboggan has a mass of 8 kg and they are pulling it with a force that is 40 degrees above horizontal. if the coefficient of friction between the toboggan and a dry patch of sidewalk is 0.7,what force is required...
October 2, 2011

Pre-calculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4
September 29, 2011

Pre-calculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4
September 29, 2011

Pre-calculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= -3/2x in quadrant 4
September 29, 2011

Science
Describe the correlation that exists between the density of a liquid and the float height of a dowel in that liquid.
September 27, 2011

math
A high school has created a table that shows the top athletes that play both football and baseball. Find and describe the intersection of these two sets.
September 27, 2011

Math
Susan has three times as many art brushes as Monique. If they have 60 art brushes altogether, how many brushes does Susan have?
September 27, 2011

Physics
The lowest A on a piano has a frequency of 27.5 Hz. Assume: The tension in the A piano wire (of length 1.8 m) is 305 N, and one-half wave- length occupies the wire. What is the mass of m the wire? Answer in units of kg.
September 26, 2011

math
Use compatible numbers to estimate. 212 + 347 = 83 + 34 =
September 22, 2011

Math
Use compatible numbers to estimate. 329 + 64 =
September 22, 2011

literary
What's the literary device being used in that sentence?
September 21, 2011

literary
Former Indonisean President Suharto was sometimes referred to as a puppet master
September 21, 2011

math
God Bless you all for your help
September 20, 2011

math
round 8,438 and 5,555 to the nearest hundred
September 20, 2011

math
round 929 to the nearest hundred
September 20, 2011

math
what is 7,468 rounded to the nearest hundred
September 20, 2011

Spanish-9th grade
la ardilla cafe con blanco es muy pequeña y gorda ( for animals you do not use baja or bajita only for people)Im a Spanish and English speaker, if you need more help I can help you.
September 20, 2011

world history
how can constitutions promote change or help resolve social issues?give some historical examples
September 18, 2011

statistic
This data shows the final exam scores of 10 randomly selected students and the number of hours they studied for an exam. (hours, scores) (3, 65), (5, 80), (2, 60), (8, 88), (2, 66), (4, 78), (4, 85), (5, 90), (6, 80), (3, 71) Find the equation of the regression line for the ...
September 17, 2011

history
Who ruled over Babylon's last era of greatness
September 16, 2011

geometry
How do I find the length of the hypotenuse of a right triangle with only one leg length and all angle measurements
September 15, 2011

Physics
Does an object still possess any kinetic or potential energy at absolute zero?
September 12, 2011

English Grade 11
In George Orwell’s “Politics and the English Language” which author is Orwell referring to as “seventeenth-century Shelley”. My best guess is Mary Wollstonecraft Shelley (1797-1851) author of Frankenstein. Does that seem reasonable? Thank you.
September 8, 2011

English Grade 11
Thank you. Would Orwell's reference to the 17th century Shelley perhaps be the author of Frankenstein?
September 8, 2011

English Grade 11
In George Orwell’s “Politics and the English Language” what is the “B.B.C. Timidity”? Thank you.
September 8, 2011

math
Betsy is making a flag. She can choose three colors from red, white, blue and yellow. How many choices does Betsy have?
September 7, 2011

calculus
given: f(x)=x^4-3x^3+2x^2-7x-11 find all roots to the nearest 0.001
September 4, 2011

chemistry
yes
August 24, 2011

Revolutionary War Letter
It is 1776. Write a three to five paragraph letter to your sister in England explaining your decision to participate in the rebellion against Britain. Be sure to list three reasons for your support of the rebellion against Britain and include any reasons you could sympathize ...
August 15, 2011

american history Lexington and Concord Essay
Who was telling the truth? Which source was more believable? Is only one version true or could parts of each source be close to the truth? It is time for you to decide. You will write a persuasive essay explaining what you think really happened on April 19, 1775. [Lexington ...
August 15, 2011

english3
"The Wild, Wild West" assignment: Write a Cowboy song or poem.
August 15, 2011

Marine Science
1.Which condition is believed to be caused by El Niño and effectively weakens hurricanes in the Atlantic ocean? *warm water temperatures *high wind shear *low wind shear *high pressure 2.We only see hurricanes in the summer months because *there is more rain in the ...
August 15, 2011

Making Data Graphs
In Example 2, find the percent of the total and the number of degrees in each sector for mountains, theme parks, relatives, and other. Find the median of the data set in Example 3. In which category does it fall? Find the average unemployment rate for Example 4. Determine ...
August 15, 2011

Life Since the 1950s
for what numbers should I put that in??
August 15, 2011

Life Since the 1950s
I need to create 10 headlines from that. and this is what I got so far 1. 2. The Korean War- Communist against Democrat 3. The Most Controversial Conflicts : Vietnam 4. Fidel Castro stands tall, a new revolution 5. One inspires all, Africa gets it's Independence! 6. Terror...
August 15, 2011

Life Since the 1950s
Spread of Independence Between 1945 and 1962, many nations in Asia and Africa achieved freedom from Western influence. After WWII, many Jews returned to Israel, their Jewish homeland. Palestinian Arabs resisted this “invasion.” In 1947, the United Nations voted for ...
August 15, 2011

flvs
well I dont understand how I'm suppose to do this assignment,and this is about World War I, why the war began, who fought in the war, and the way the war was fought. And what I have to do is take the role of a World War I soldier and communicate all of what you are ...
August 15, 2011

flvs
would you be willing to help me??
August 15, 2011

flvs
By now, you should be familiar with the causes and alliances of World War I and understand why the war began, who fought in the war, and the way the war was fought. Assignment: Are you the type of person who likes to write? Do you feel like writing helps you communicate your ...
August 15, 2011

math
juan entered a bike race which he was to ride 45 miles. stopping at certain intervals during the race to check in with the scorers .he checked in 9 times before crossing the finish line if the intervals wre eaqually spaced throughoutthe race,how far apart were they?
August 12, 2011

Calculus
A sphere with radius 1m has temperature 15 degrees C. It lies inside a con- centric sphere with radius 2m and temperature 25 degrees C: The temperature T(r) at a distance r from the common centre of the spheres satisfi es the di fferential equation: d^(2)T/dr^2 + 2/r(dT/dr...
August 8, 2011

geometry
Two congruent equilateral triangles have sides of 34 mm and 6x-2 mm. Find the value of x.
July 31, 2011

psy 220
The text summarizes positive psychology as being aware that humans are both creatures and creators of their personal and social worlds. What does this statement mean to you? Do you agree that humans are creatures as well as creators of their personal and social worlds? Explain...
July 13, 2011

algebra/trignometry
Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α
July 13, 2011

trig
Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α
July 13, 2011

Ethics & Enterprise
Can someone help me with this assignment? Complete the following for identifying an ethical issue: • Identify an potential ethical dilemma from a real company. The company could be a current company for which you work, a company in which you used to work, a friend’s ...
July 12, 2011

ecpology
what are the chemical or cellular threats that excessive heat bring to plants?
July 2, 2011

Differential equation
dy/dx=(-8xy^2+4x)(4x+1)y-(8x^3+4x^2-1)
July 1, 2011

algebra/trignometry
if angle x is 30 degrees and side yz is 10ft, how long is side xy?
June 29, 2011

Chemistry
How do you calculate the following: Starting with a liter of 1M sodium acetate (pka of acetic acid = 4.75 ), calculate the number of moles of strong acid or strong base needed to make a pH buffer effective at pH = 4.o ? Thank you!
June 29, 2011

Health Care/Medical Coding
How are medical coding, physician, and payer feees related to the compliance process?
June 27, 2011

algebra
Find an equivalent expression with the given denominator 4/n=?/n 2power. The expression that is equivalent to 4/n is
June 17, 2011

8th grade Math
" four less than twice a number is greater than six " Can someone please write that as an expression ?
June 10, 2011

accounting
Required a. Determine the gross profit margin for each product produced based on the ABC data [(selling price 2 ABC cost per foot) 3 feet produced]. b. Determine the gross profit margin for each product produced based on the traditional costing data [(selling price 2 ...
June 3, 2011

world history
In what year did city-states become common in greece
May 30, 2011

math
state lengthof major and minor foci and center (x^2)/4+(y^2)/25=1 i also need to learn how to graph it,thanks!
May 26, 2011

Chemistry
You use the equation Q=CmT Q=(specific heat)(mass)(change in temperature)
May 26, 2011

math
log(4x+10)=3 simplify?
May 26, 2011

math
The area of a circular trampoline is 112.07 square feet. What is the radius of the trampoline? Round to the nearest hundredth
May 26, 2011

Physics
A pen placed 13.0 cm from a concave spherical mirror produces a real image 13.5 cm from the mirror. a) What is the focal length of the mirror? Answer in units of cm. b) Calculate the magnification of the image. Assume the pen is placed 28.9 cm from the mirror. c) What is the ...
May 23, 2011

accounting
cash flow analysis of whirlpool cash flow statement for 2006 solution
May 20, 2011

science
whats the reactant of 2,4-D with ethanol
May 18, 2011

Government
yeah but because you say that strict constructionsts wanted to limit power so liberal consrtuctionists wanted to expand power?...
May 17, 2011

Government
so liberal constructionists wanted to expand national power.?
May 17, 2011

Government
what is the strict constructionists attitude toward national power
May 17, 2011

math
8.94427191
May 17, 2011

science
monarch butterflies migrate from newyork at a certain time of the year. how migration helps butterflies survive?
May 17, 2011

com/156
When developing your arguments for your final essay, how might you determine what is fact and what is opinion? Does the opinion of an expert in the field carry more weight than the opinion of someone that is not? Explain why or why not. Find one factual article online about ...
May 14, 2011

History
Hi I'm evaluationg sources and I need help finding out more informatoin on Z.A.B Zeman. IN the book, he said something about being a marxist/socialist/communist but i'm not sure what and its kinda urgent that I find out... I've been working real hard.
May 14, 2011

abou the internet
All webpages are original! Unless they are copying someone elses stuff. You are asking about bias and how severly it clouds the information. Youd look at stuff like does the information match up to other information, affilations of the author, how moderate or extreme the views...
May 14, 2011

abou the internet
Oh, right. Everyone has their own opinions or bias, its the ability to put their own opinions and feelings aside and do a good evaluation that matters. You'd look the author and at the authors perspective.
May 14, 2011

about the internet
Hi are you evaluating a webpage at the moment or are you answering a homework question?
May 14, 2011

Physics
A man jogs along at 1.2 m/s. His dog, playing 36 m behind him, waits for 5 s, then takes off after him at 3.1 m/s. How far apart are they when the dog starts after his master? Answer in units of m. How far will the dog run? Answer in units of m.
May 13, 2011

Spanish
1.bebes 2.hago 3.tiene 4.envia compartir
May 11, 2011

poetry
what is the meter in the poem "Me"by Walter de la Mare?
May 11, 2011

MATH
A rope 105 meters long must be cut into pieces that are 2 1/2 meters long. How many pieces of rope are there
May 9, 2011

Earth science
Which single factor generally has the greates effect on the climate of an area on the earth's surface?
May 9, 2011

Physic
A flywheel rotates with an angular speed of 26 rev/s. As it is brought to rest with a constant acceleration, it turns 55 rev. What is the magnitude of the angular acceleration? How much time does it take to stop?
May 8, 2011

Physic
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
May 8, 2011

Physics
A 669 g sample of water at 83 degrees celsius is mixed with 486 g of water at 23 degrees celsius. What is the final temperature of the mixture? Assume no heat loss to the surroundings.
May 8, 2011

science
What is the relationship between DNA, chromosomes, alleles and genes?
May 5, 2011

Science (Force and motion)
Explain how acceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr. (Momentum = mass x velocity) Calculate the momentum of a tennis ball of 50 g moving at a velocity of 25m/s.
May 3, 2011

WORD PROBLEMS WITH EQUATIONS
Mark has 28 10-cent and 20-cent pieces. How many of each coin does he have if their total value is $4.30? In a class of 26 students, there are four more than girls. How many boys are there?
May 1, 2011

Physics
I got the answer wrong. Is there any other ways you can explain this?
April 28, 2011

Physics
A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V. What is the equivalent resistance of the circuit? Answer in units of ohm. What is the current in the circuit? Answer in units of A. What is the voltage drop across the first lamp? ...
April 28, 2011

PHysics
A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Which statement is true? 1. The dragster rounded the curve at a changing velocity of 100 km/h. 2. The dragster moved along a straight line at a constant velocity of 100 km...
April 28, 2011

blair
Sitting motionless on a playground swing. The downward force is 500 n. How much force is there on each of the two swing chainsv
April 27, 2011

Business
How about these ones? This modifiers are really confusing. Do you know of any website that will make them easy to understand? 1)Rudolph enjoys eating curries from the Indian delicatessen with a lot of spices. 2) On the phone, the telemarketer persuaded the new homeowners to ...
April 27, 2011

Business
Identify which of the following sentences uses modifiers correctly; a) kurt and his hockey teammates nearly cooked two hundred pancakes for the breakfast fundraising event. d) Bridget decided to leave her career as an attorney and pursue acting during the meditation retreat.
April 27, 2011

physics
1.using equations What would happen if the knob were placed in the center of the door? What would happen if the knob were placed right next to the hinges?
April 26, 2011

physics
1.What if Newton’s Third Law did not exist?. In your response to this inquiry, think of some of the consequences if Newton’s Third Law were not true. Describe in detail at least two consequences that would result if the Third Law were not true.
April 26, 2011

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members