Wednesday
September 17, 2014

Posts by MAry


Total # Posts: 3,244

history
During a remarkable period of change from roughly 1865 to the early 20th century, the great cities that we know and love today expanded at an incredibly rapid pace and went through a fundamental transformation in composition and construction. Select one of the ways that the ...
March 24, 2012

College Physic
2) A car traveling with 5 m/s encounters a deer. The drivers slams on the breaks, the breaks lock. The car skids to a complete stop on the road ahead (and the deer runs away). Why does the car stop (where does all the kinetic energy it had go)? Find the magnitude of the ...
March 23, 2012

double integrals
Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region) im gonna use the S for integral sign..lol SS6ycos(x^3-3x)dxdy+SS6ycos(x^3-3x) And the first integration limits for x are between -1 and y, for y ...
March 21, 2012

Math
28,487.32 is the answer, Sorry.
March 20, 2012

Math
The McKeegan Corporation has two different bonds currently outstanding. Bond M has a face value of $29,500 and matures in 24 years. The bond makes no payments for the first 7 years, then pays $2,100 every six months over the subsequent 10 years, and finally pays $2,700 every ...
March 20, 2012

History
All of the following statements about Jaoan in the last year of the war are true except: A. Japanese retreated from Okinawa B. Fire bombs crippled Japanese economy and war production C.Japanese treated Postdam Decleration with disintrest. I ...
March 20, 2012

Math
Consider a game where Ann and Bob play against each other in a dice game, Ann wins if her score is higher than Bob's, Bob wins if his score is higher or if the scores are the same. What is the probability of Ann winning? I calculated and got 1 - summation from 1 to 6 of n ...
March 18, 2012

accounting
Discuss in 200 to 300 words, each of the four financial statements. Explain the different components of the statements as well as what the statements tell about a business.
March 16, 2012

Basic Calculus-Optimization Problems
Hello, please help me. There is a question where I have to optimize the area of a field that is being fence in like this: [|] i.e. two rectangle fields, side by side: area= 2x by y. I get to use 200ft of fencing. From that diagram and the amount of fencing I have, I made this ...
March 16, 2012

Basic Calculus-Relative Extrema
Hello, please help me :) A question asked that I find all relative extrema of a function f(x)= x + 1/x. I'm a bit confused with my solution, but I'll show my work first..: I found f'(x) to get the critical numbers: f'(x)=1-x^-2 f'(x)=(x^2 -1)/x^2 f'(x...
March 15, 2012

calculus-domain
:O This graphing device is much better! I was using an application made by google chrome x). Thank you so much, I'll use this from now on :)
March 15, 2012

calculus-domain
Hello, I would greatly appreciate your input. I just need some reassurance that I'm going about this question the right way. I am to find out where h(x)=x*(x-1)^(1/3)is increasing and decreasing. so after I did some solving I found my critical points to be x=(3/4) and x=1...
March 15, 2012

calculus-derivatives
Oooooh! Thank you two so much :) I'm more confident in regards to my test now, thank you
March 15, 2012

calculus-derivatives
Hello, please help me. I needed to find the derivative of f(x)= x^4 -2x^3 + x +1. I got f'(x)= 4x^3 -6x^2 +1. I would like to figure out the critical numbers so I can figure out where it increases and decreases, but I have no idea how to factor it... Is it even possible? ...
March 15, 2012

calculus-derivatives
:D I'm so happy! Never thought to factor that out x) thank you!
March 15, 2012

calculus-derivatives
Hello, please help me, I'm studying for a test. :) I won't say the question because I'd like to figure it out myself or try first, but I'm looking for a simpler way to go about this. I have to find the derivative of h(x)= (x)(x-1)^1/3 I got: h'(x)= (x-1)^1/...
March 15, 2012

Algebra! 20 yrs. out of school
a. 1/2 times 1/3 b. 3/4 times 1/3
March 14, 2012

Accounting
Much of accounting is directed at servicing the information needs of those users that are external to an organization. Identify at least three external users of accounting information and indicate two questions they might seek to answer through their use of accounting ...
March 13, 2012

math
Wouldnt the answer be 750....
March 13, 2012

1st grade same sound
which one of the 3 words has the same sound as boat? sol slow do
March 12, 2012

anatomy
I have 2 problems/questions I am unsure of the answers. The first one is "how would you demonstrate the Valsalve maneuver using the model lung?" and 2. If a woman is breathing rapidly and deeply after exercise, would TLC, RV, TV, IRV, and ERV stay the same, increase ...
March 12, 2012

math
is 2x - 5 = 5 = 7x = 3 a linear equation
March 12, 2012

Anthropology
Ethnographic methods are to ethnological methods as
March 12, 2012

Biology Question
I have 2 problems/questions I am unsure of the answers. The first one is "how would you demonstrate the Valsalve maneuver using the model lung?" and 2. If a woman is breathing rapidly and deeply after exercise, would TLC, RV, TV, IRV, and ERV stay the same, increase...
March 11, 2012

calculus: related rates
:O Thank you so much, for some reason i totally forgot about the product rule! hahah... :)
March 11, 2012

calculus: related rates
hello, please help me. A cylindrical can is being heated with its height increasing at the rate of 0.01cm/min and its diameter at the rate of 0.005cm/min. At what rate is the volume increasing when the can has a diameter of 15cm and a height of 20cm. this is how i'm going ...
March 11, 2012

A&P II
I have 2 problems/questions I am unsure of the answers. The first one is "how would you demonstrate the Valsalve maneuver using the model lung?" and 2. If a woman is breathing rapidly and deeply after exercise, would TLC, RV, TV, IRV, and ERV stay the same, increase ...
March 11, 2012

physics
A small plane mass 600 kg lifts off from the runway at a speed of 145 Km/Kr. 2 Minutes later, the plane has reached an altitude of 300 meters and its airspeed has dropped to 90 Km/Hr. Assume the power output of the engine was constant during this time. Ignore air resistance ...
March 10, 2012

Physics
A mas of 100 Kg hangs from a cable secured to a steel pole and supported by another cable as shown below. Find the tension (T) in the support cable and the force (F) on the steel pole.
March 10, 2012

Physics
A mass sits at the top of a 2 meter long ramp inclined at an angle of 30 degrees (to the horizontal). When the mass is released, it slides down the ramp and then onto a level floor. If both the ramp and the board have a coefficient of .25 (Friction), how far out onto the floor...
March 10, 2012

physics
At a low point in its swing, a pendulum bob with a mass of 0.2kg has a velocity of 4m/s. Ignoring air resistance, how high will the bob swing above the low point before reversing direction? Please explain and show work.
March 9, 2012

Algebra
add (3c^4-2c^3+11c-9)+(c^5+7c^3+4c^2-3c+6)+(-6c^4+c^2-5c-5)
March 8, 2012

algebra
factor completely 4s^2-25
March 8, 2012

geometry
April wants to add a ribbon border to the circular rug in her living room. If the area of her rug is 113.04 square feet, how long does the ribbon need to be?
March 7, 2012

social studies
it will show u in gooogle
March 7, 2012

statistics
The average salary for graduates entering the actuarial field is $40,000. If the salaries are normally distributed with a standard deviation of $5000 (σ = 5000), find the probability that a graduate will have a salary over $45,000: P(X > 45,000).
March 7, 2012

statistics
.0392
March 7, 2012

math
Tiny is ordering a pizza and cant decide between a round pizza with a diameter of 4 inches or a rectangular pizza that is 12 inches by 14 inches. The round pizza is 9.50 and the rectangular pizza is 10.00. Which is larger? How much larger is it? Which pizza is the better buy ...
March 7, 2012

Chemistry
A solution is prepared by mixing 3.5 g of nitric acid with enough water to make 8.00 L of solution. Find the [H3O+], [OH-], pH and the pOH
March 7, 2012

math
From the pizza shop, James walks 12 blocks south, 22 blocks east, 18 blocks north, and 30 blocks west. What is the least number of blocks that he must travel if he returns to the pizza shop? Explain how you got your answer – draw a picture or write a sentence.
March 6, 2012

math
Bob made a square table top with 100 white square tiles. He painted the tiles along the edge of the table red. How many tiles are red? You must show your work
March 6, 2012

Algebra
give exact and approximate solutions to three decimal places. x^2+5x-7=0
March 5, 2012

algebra
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80 ft of fence? what should the dimensions of the garden be to give this area. The maximum area that the farmer ...
March 5, 2012

algebra
Thank you so much
March 5, 2012

algebra
Is the answer First page 48 second page 49
March 5, 2012

algebra
I am not sure how to figure this out...can you help a little more
March 5, 2012

algebra
A student opens a mathematics book to two facing pages. The product of the page number is 2352. Find the page numbers. The first page is__________ The secnd page is__________
March 5, 2012

science
which of the following is a physical change? Milk becomes sour An iron nails rusts All the water in a solution of salt water evaporates leaving a lot of crystals of salt in the bottom of the dish A wooden log is burned leaving ash in the fireplace
March 5, 2012

biology
Recruitment of b cells
March 4, 2012

SUE PLEASE HELP
its D
March 4, 2012

Algebra 2
What is the probability when you roll 2 dice and you roll a number greater than 4 on the first dice and a 2 on the second dice? pls help :)
March 4, 2012

AP CHEMISTRY
A buffer, consisting of H2PO4− and HPO42−, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system. What is the pH of a soft drink in which the major buffer ingredients are 7.20 g of NaH2PO4 and 4.90 g of Na2HPO4 per ...
March 3, 2012

Chemistry
Each of the following processes is spontaneous as described. Which one will have ∆H approximately equal to zero? 1. precipitating 1 mol of AgBr(s) from a solution of Ag+(aq) and Br−(aq) 2. 1 L He(1 atm, 298 K) + 1 L Ar(1 atm, 298 K) → 2 L He/Ar mixture(1 atm...
March 1, 2012

5th grade Math
Insert parentheses in the false number sentence to make it true. -3+5*2-(-6)=37
February 29, 2012

Algebra 2
if one class had 20 students participating in the taste test and each student's rating is represented as ak, how do you write the formula for finding the mean rating using summation notation?
February 29, 2012

Math
Adriano. two is prime as are all the other numbers in his pattern.... hong-li wrote 6 and 6 can be divided by 2 and 3 therefore not prime. Latrell wrote 9 and that can be divided by 3 so 9 is not prime.
February 29, 2012

bio
In 3 or more sentences describe the structure of a water molecule and its unique properties
February 29, 2012

HIS/115
Compare European settlements in New England, the Middle Colonies, the Chesapeake, and the South in terms of goals, governments, social structures, and religions. What similarities do you find most remarkable? What differences do you find interesting? Why?
February 29, 2012

US HISTORY
Why did prohibition take place in mostly rural areas.
February 28, 2012

Math for Liberal Arts Major
Find the solution set for the following inequality: x+1>1/2x-11
February 27, 2012

maths
Given that the equation of the parabola is 5y^2 + 24x = 0. Find (1)The Axis and vertex of the parabola (ii)The focus and the directrix (iii)The distance from the directrix to the focus
February 27, 2012

KNOWLEDGE
Indian movie that won oscar
February 25, 2012

health
patricia had a car crash while she was on her way to work one morning.she was badly injured and needed to have an arm amputated.explain three effects that patricias physical disability may have on her self-concept.patricias husband,andy is a teacher.explain three ways that ...
February 25, 2012

social work
What are some of the issues that need to be addressed in the hiring of competent staff in working with people with disabilities? I am only finding information about employing those with disabilities. How do I phrase this question to Google or ideas where to look?
February 22, 2012

pos/110
civil liberties:currently do we need more or less protection of this liberty in contemporary American society
February 21, 2012

Physics
A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched or compressed. When the block is released, it oscillates up and down between positions A and B. If the mass of the block is 0.5 kg and the spring ...
February 20, 2012

PH103
Truth tables can a. display all the possible truth value involved with a set of sentences. b.determine what scientific claims are true. c.determine if inductive arguments are strong. d.determine if inductive arguments are weak.
February 19, 2012

Physics
What is the truth value of the sentence "Pv~P" A. True B. False C. Cannot be determined D. Not a sentence
February 19, 2012

Calculas
Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = t sqrt6 − t , t < 13/3 I don't even know how to start out!
February 19, 2012

AP CHEMISTRY
Write the formula for each of the following compounds, being sure to use brackets to indicate the coordination sphere. A) bis(bipyridyl)cadmium(II) chloride B)potassium tetrabromo(ortho-phenanthroline)- cobaltate(III)
February 18, 2012

AP CHEMISTRY
Calculate [OH-] and pH for the following strong base solution; a solution formed by mixing 10.0 mL of 0.011 M Ba(OH)2 with 28.0 mL of 7.4 10-3 M NaOH working and answer would be appreciated
February 18, 2012

algebra
solve square root of y+5-1=2
February 18, 2012

Physics
An electron and a proton are each placed at rest in an electric field of 363 N/C. What is the velocity of the electron 76.1 ns after being released? Consider the direction parallel to the field to be positive. The elementary charge is 1.60218 × 10 −19 C...
February 17, 2012

algebra
4 less than d
February 17, 2012

math
4x-y=3 4x+y=1 show work and explain
February 16, 2012

AP CHEMISTRY
An unknown salt is either KBr, NH4Cl, KCN, or K2CO3. If a 0.100 M solution of the salt is neutral, what is the identity of the salt?
February 16, 2012

math
its 1 times 6, not 16
February 16, 2012

math
is it multiply or is it x? if its multiply i think its p16
February 16, 2012

AP CHEMISTRY
1)calculate [OH-] and pH for each of the following solutions. (Kw = 1.0*10^-14.) a)0.101 M NaF b) 0.030 M Na2S c)a mixture that is 0.019 M in CH3COONa and 0.036 M in (CH3COO)2Ba please help and if u can try to explain
February 16, 2012

AP CHEMISTRY
THANX
February 16, 2012

AP CHEMISTRY
If a solution of HF (Ka = 6.8*10-4) has a pH of 3.42, calculate the total concentration of hydrofluoric acid.
February 16, 2012

james giles math
is that it?
February 15, 2012

managerial accounting
40%
February 15, 2012

math
how can i make a fraction into a pound
February 14, 2012

math
i tried to simplify 10/8 i got the answer of is 2/4 am i correct
February 14, 2012

Chemistry
How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?
February 14, 2012

chemistry
I got to 4x^3 + 6x^2=1.12x10^-12 (my moles of potassium chromate is 1.5 instead of 1) but now I'm stuck
February 13, 2012

Math
You have $47 to spend on music and movie downloads. Each album download cost $7 and each movie download costs $8. Write and graph a linear inequality that represents this situation. Let x represent the number of albums and y the number of movies.
February 13, 2012

Math
Please show me how to set and solve: The sum of two numbers is 90. Their difference is 12. What are the numbers?
February 13, 2012

amer lit
how does the song dirty little secrets by the all american rejects apply to the scarlet letter
February 12, 2012

math please help
determine the domain of the real valued function f(x) = sqrt(5 - (sqrtx))
February 12, 2012

Logics
Logicians regard the following as the meaning of the word "argument." (Points : 1) a. A hostile and emotional dispute b. A poetic tribute to Spring c. A set of reasons put forth to support a claim d. The kind of thing one has with a spouse
February 12, 2012

statistics
Find the mean of the given probability distribution. The number of golf balls ordered by customers of a pro shop has the following probability distribution.
February 12, 2012

Physics
A child insists on going sledding on a barely snow-covered hill. The child starts from rest at the top of the 60 m long hill which is inclined at an angle of 30o to the horizontal, and arrives at the bottom 8.0 s later. What is the coefficient of kinetic friction between the ...
February 11, 2012

math
correction!!! f(x) = sqrt( 5 -(sqrt x))
February 10, 2012

math
determine the domain of the real valued function f(x) = sqrt(5 - (sqrt5))
February 10, 2012

Human Services
I have a problem with APA formatting and how to cite Example 1 According to McNamara, n.d The Question---my answer Or do I need to cite each question The amount of questions are about 100
February 10, 2012

physics
need help with this question does anyone know the answer
February 10, 2012

Chemistry
1.9 mol HCl and 3.8 mol NaOH react according to the equation HCl + NaOH −→ NaCl + H2O . Calculate the amount in moles of NaCl formed. Answer in units of mol
February 9, 2012

Chemistry
How much water, in grams, can be made from 3.59 × 10^24 hydrogen molecules? Answer in units of g
February 9, 2012

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