Friday
October 28, 2016

# Posts by ray

Total # Posts: 524

trig 30
If cos^2 theta -6 sin 2 theta =0, one value of theta is a)0 degrees b) 90 degrees c)180 degrees or D)255 degrees. Please show me how to do it and not just give answer cause I have two more questions that are similar. Thanks so much.
March 10, 2010

Math 30 Trig
What is the value of theta if 9 cos^2 theta + 3 cos theta = 0 where 90 degrees < theta < 180 degrees?
March 7, 2010

Chemistry
If the radiation of an automobile contains 12L of water, how much would the freezing point be lowered by addition of 5 kg of prestone (glycol, C2H4(OH2))? How many kg of zerone (methyl alcohol, CH3OH) would be required to produce the same result? assume 100% purity .
March 6, 2010

chemistry
How much ethyl alcohol (C2H5OH) must be added to 1.00 L of water so that the solution will not freeze at -4°F?
March 6, 2010

social studies
indentify: green mountain boys
March 3, 2010

describe three actions taken by the Second continental congress?
March 3, 2010

indentify: green mountain boys
March 3, 2010

describe three actions taken by the Second continental congress?
March 3, 2010

Physics
A 1.15 kg block slides down a 19.0 m long 29.0° incline at constant velocity. How much work is done by friction?
March 2, 2010

Trigonometry
Simply: cot(-x)-1/1-tan(-x) Is it -cotx? The other answer choice is: cotx.
January 2, 2010

Culteral Diversity
a. Capitalist
December 19, 2009

Mythology
I think you're missing the question...
December 14, 2009

Mythology
What is a possible explanation for the significance of two separate flood myths in which the water comes from the sky (Guatemalan mythology) and in the other, the water comes from the ground (African mythology)?
December 14, 2009

1/6 or 1/2x1/3=1/6
November 30, 2009

algebra
Multiply it out then flip your answer. The numerator will become the denominator and likewise.
November 23, 2009

R-values(physics)
The ceiling of a single-family dwelling in a cold climate should have an R-value of 25. To give such insulation, how thick would a layer have to be if it were made of each of the following materials? (a) polyurethane foam (thermal conductivity k = 0.024 W/m · K)
November 23, 2009

Pre-Algebra
It seems like you're multiplying these together and if that is the case you will be adding the exponents. So, -10 + 5 will equal -5. Since it's asking for the answer to have positive exponents you will just have to show that b^-5 = (1/b^5) and there is your answer.
November 23, 2009

English
atthew interviews the director of computing services to get information for the company newsletter. What part of the writing process does this activity represent? Writing Editing Revising Planning
November 17, 2009

Physics
A block of wood with volume V floats in water with 0.68V submerged. In oil the block floats with 0.86V of its volume submerged. What's the density of the wood?
November 17, 2009

LITTERATURE
A grandson of the slave master John Ardinburgh declared that a "good funeral" for Bomefree would include a jug of whiskey. Sojourner Truth saw the jug as offering A. sin over atonement. B. an opiate for slaves. C. mere hypocrisy. D. too little too late.
November 12, 2009

Physics
A orbiting satellite stays over a certain spot on the equator of (rotating) Mercury. What is the altitude of the orbit (called a "synchronous orbit")?
November 11, 2009

Physics
A orbiting satellite stays over a certain spot on the equator of (rotating) Mercury. What is the altitude of the orbit (called a "synchronous orbit")?
November 11, 2009

Physics
Some people believe that the Moon controls their activities. The Moon moves from being directly on the opposite side of Earth from you to be being directly overhead. Assume that the Earth-Moon (center-to-center) distance is 3.82 multiplied by 108 m and Earth's radius is 6....
November 9, 2009

Math
Are you saying that (3m^(7k)^(-5))^(-3) is the problem given?
November 3, 2009

Physics
A tunnel of length L = 141 m, height H = 6.9 m high, and width 6.0 m (with a flat roof) is to be constructed at distance d = 60 m beneath the ground. The tunnel roof is to be supported entirely by square steel columns, each with a cross-sectional area of 960 cm^2. The mass of ...
November 3, 2009

Physics
A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N. What value of D ...
October 28, 2009

Physics
A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N. What value of D ...
October 28, 2009

Physics
A diver of weight 730 N stands at the end of a diving board of length L = 5 m and negligible mass. The board is fixed to two pedestals separated by distance d = 1.5 m. What are the magnitude and direction of the force on the board from the left pedestal? (Include the sign. ...
October 28, 2009

Physics
In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the initially stationary merry-go...
October 26, 2009

Physics
In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the initially stationary merry-go...
October 26, 2009

Physics
In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the initially stationary merry-go...
October 26, 2009

Physics
A Texas cockroach of mass 0.17 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has radius 15 cm, rotational inertia 5.5 10-3 kg·m2, and frictionless bearings. The cockroach's speed (relative to the ground) is...
October 26, 2009

Physics
Thank you!
October 26, 2009

Physics
A small solid sphere, with radius 0.25 cm and mass 0.61 g rolls without slipping on the inside of a large fixed hemisphere with radius 17 cm and a vertical axis of symmetry. The sphere starts at the top from rest. (a) What is its kinetic energy at the bottom?
October 26, 2009

Physics
A small solid sphere, with radius 0.25 cm and mass 0.61 g rolls without slipping on the inside of a large fixed hemisphere with radius 17 cm and a vertical axis of symmetry. The sphere starts at the top from rest. (a) What is its kinetic energy at the bottom?
October 26, 2009

Math
y+5/3=x+2
October 24, 2009

math
I meant what equation it was
September 21, 2009

math
is y=350n-(155n+700) a linear, quadratic, exponential, or none of the listed. If is is not listed, then what is it? thanks for helping me.
September 21, 2009

Science
How many cubic centimeters of water are required to fill a graduated cylinder to he 50.0 mL mark? How?
September 17, 2009

Physics
A lead ball is dropped into a lake from a diving board 5.42 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.98 s after it is dropped. (Assume the positive direction is upward...
September 7, 2009

Strategic Management
What are the 4 differences between Strategy Formulation and Strategy Implementation?
July 30, 2009

economics
Thanks Lotta, it helped
May 27, 2009

economics
When Mcdonal's corp reduced the price of its big mac by 75% if consumers also purchase french fries and a soft drink. the company was hoping the novel promotion would receive its U.S. sales growth. It didn't. within two weeks, sales had fallen. Using your knowledge of ...
May 27, 2009

economics
Thanks Lotsa, it helped
May 27, 2009

economics
Dell Computer Corp., the world's largest personal-computer maker, is keenly aware of everything its rival PC manaufacturers decide to go. Explain why Dell usually reacts more quickly and more substantially to pricing, product design, and advertising decisions made by ...
May 27, 2009

Accounting
If one unit of Product X used \$1.5 of direct materials and \$2 of direct labor, sold for \$11, and was assigned overhead at the rate of 20% of direct labor costs, how much gross profit was realized from this sale? a.\$11 b.\$7.5 c.\$4.6 d.\$7.10 e.\$3.5
April 14, 2009

CHEM
Calculate the hydrogen ion concentration of a 2.30×10^-1 M solution of the strong base RbOH. Round your answer to 3 significant digits. would the answer just be 2.30E-1 because the hydrogen ion will dissociate completely?? help appreciated thanks
April 14, 2009

Organisational Behaviour
Can give me example in relation to the 6 steps of the Rational Decision -Making Model? There are no examples in the textbook.
March 12, 2009

intro to economics
jeez no one can ask for help on the internet any more? This is a homework help website. so lay off.
March 2, 2009

sci230
Piecing It Together on p. 78 of the text describes the six major concluding principles Mendel hypothesized from his work. Describe three of them.
January 24, 2009

writing skills
find answer 5.which of the following sentences has a compound predicate b.while he swam she collected shells c.she washed the shells and dried them in the sun d.on the way to the bank the interest rates went down
December 16, 2008

Calculus
Find dy/dx by implicit differentiation. sqrt(3 x+y)=2+x^2y^2?
November 12, 2008

Chemistry
A 522g piece of copper tubing is heated to 89.5C and placed in an insulated vessel containing 159g of water at 22.8C. Assuming no loss of water and a heat capacity for the vessel of 10.0J/K, what is the final temperature of the system ( c of copper = 0.387 J/g*K)?
November 11, 2008

college
Four nutritional or physical exercise goals o Actions taken to meet each goal
October 11, 2008

Math
fuch et just guess
September 9, 2008

us history
How else can Jefferson 's election be considered a revolution?
June 26, 2008

us history
How else can Jefferson 's election be considered a revolution?
June 24, 2008

Approximate the area under each curve by evaluating te function at the left-hand endpoints of the subintervals. 1. f(x)=9-x^2 from x=1 to x=3; 4 subintervals. 2. f(x)=x^2 +x+ from x= -1 to x=1; 4 subintervals.
May 27, 2008

Approximate the area under each curve over the specified interval by using the indicated number of subintervals and evaluating the function at the right-hand endpoints of the subintervals. 1. f(x)=9-x^2 from x=1 to x=3; 4 subintervals. 2. f(x)=x^2 +x+ from x= -1 to x=1; 4 ...
May 27, 2008

calculus
How do solve for q for the following and find the derivative for them? 1) pq+p+100q=50000 2) (p+1)(ã q+1)=1000 3) p=(1/2)ln((5000-q)/(q+1))
May 13, 2008

A rectangular area is to be enclosed and divided into thirds. The family has \$700 to spend for the fencing material. The outside fence costs \$12 per running foot installed, and the dividers cost \$30 per running foot installed. What are the dimensions that will maximize the ...
May 3, 2008

us history
What was the purpose of the open door notes introducxe by John Hay ?
April 19, 2008

science
How would life be witout a skeleton?
April 7, 2008

social science
How did the financial crisis of Southeast Asia bring about economic growth.
March 20, 2008

math
is 4x to the 3rd power a monomial?
March 6, 2008

science
thanks
February 28, 2008

science
why will deer travel for many miles to get a salt lick?
February 28, 2008

math
Just negative 11! Pokemon rule!
February 28, 2008

math
Please double check 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? Answer: 1.00 or 0.20 A circular coffee table has a diameter of 5 ft. ...
February 20, 2008

sociology
Give four examples of social movements, current or past, and describe the key features of each movement. I am not sure what I am looking for but see If I am on the right track please Gay and Lesbian Rights Movement is to help gain civil right for people that want to take same ...
February 12, 2008

criminal justice communication
I was assigned a paper to write against police stun guns and patrol car video surveillance. I have found some good sites and article on Police stun gun But I have not been able to find any information against Police Video Surveillance any help or suggestion would be appreciated
February 7, 2008

Sociology
Give an example of a human behavior that is considered deviant in one society but is not considered deviant in others. What are the factors that have contributed to this society's perspective of the deviant behavior? The human behavior I wanted to use is In the United ...
January 27, 2008

Philosophy
eastren philosophy to a pupile
January 27, 2008

need help
I have an assignment that is due sunday here it is Find a current or past court trial (via Internet or television) where an investigator or officer is called to testify. Evaluate the officer’s role and if he/she follows the guidelines on pp. 129-34 of the text. Then ...
January 23, 2008

medical discourse
good ones:)thanx..if you have more just send them:)
January 22, 2008

medical discourse
i have tomorrow a discusion about medical discourse.so i have to ask some questions about that.what can i ask my friends?f.e.did they have any bad experiences whit their doctors?any suggestions?
January 22, 2008

information
I have a project to do and can not find a site to watch a trial here is the assignment I have to do all i need is a site where I can watch a trial any suggestions please Find a current or past court trial (via Internet or television) where an investigator or officer is called ...
January 20, 2008

Police Officer
Thank you that cleared it up for me
January 18, 2008

Police Officer
Can some one please explain tome why Police Officer should not assume? For example when a police Office is told of a dispute between two parties why should they not assume what they are hearing is not the truth. The only reason I could figure out is based on the information ...
January 18, 2008

medical discourse
i had my presentation on medical discourse and tomorrow i have to conclude it.What can i say as a conclusion on medical discourse?i don't need any internet pages because i've looked everywhere and couldn't find understandable conlusion.does anybody have any idea ...
January 15, 2008

sociology
Can someone explain to me the differences between formal organizational structure in business and the flexible organizational structure. If you can give me an example please or a web site
January 14, 2008

art history
January 8, 2008

Not understaning what I need to do
I am writing a paper of the Society of The India people and one of the questions I need to answer is A clear differentiation between race and ethnicity in India? I am not sure I understand what I need to write Can any one give a better understanding what I need or example
December 17, 2007

Algebra Word Problem
A rectangle has dimensions of 12x8inches. If a uniform border is added, then the new rectangle has twice the area of the old rectangle. a) Find the width of the border b) find the new dimensions of the rectangle
December 13, 2007

SOCIOLOGY
HI, WHAT IS CONFLICT THEORY?
December 8, 2007

Math / Algebra Word Problem
The Parkhursts used 160 yd of fencing to enclose a rectangular corral and to divide it into two parts by a fence parrallel to one of the shorter sides. Find the dimensions of the corral if its area is 1000 yd^2 Thank you!
December 6, 2007

science
what is the name or term for "where an air mass forms or starts"
November 29, 2007

job question
What kind of job can i get with a bachelors of science in psychology? I live in the state of virginia
November 20, 2007

job question
What kind of job can i get with a bachelors of science in psychology? I live in the state of virginia
November 20, 2007

English
Tom, who is eight, goes to a school in Philedelphia.
November 13, 2007

Geography
what oportunities arise for pastral farming due to the CTWM... please could someone give me any real life cases of this!? thank you
October 23, 2007

Art
I want to use a large number of small items to construct one big item. The big item must have a relationship with the small items such as making a bowl or spoon out of cheeios. Please give me some ideas. Thanks
October 23, 2007

human services
The question I need to answer is Describe a social policy that may affect your future position as a human services worker. My understanding of social policy A course of action the government has put forth to quide the people a different direction. "Welfare Reform" ...
October 11, 2007

math
What does mutually exclusive mean? Can anyone give me an example?
September 29, 2007

Econ
What is the difference between gross income and disposable income? If I want to know which countries are prosperous, which one should I look at?
September 28, 2007

Repost: John of Salisbury for Jermaine
The problem is that the instructor makes it seem as if all that we need to know with regards to describing the society can come from "The Body Social" alone. So, I guess a reasonable question thereafter might be: what types of society were/are there? This is the ...
September 7, 2007

1. Pages:
2. <<Prev
3. 1
4. 2
5. 3
6. 4
7. 5
8. 6
9. Next>>