Wednesday
May 4, 2016

# Posts by bre

Total # Posts: 140

College Algebra
A yo-yo factory has fixed operating costs of \$450,000 per year. In addition to the fixed costs, the cost to produce one yo-yo is \$1.10. The yo-yo company sells the yo-yos to a distributor for \$5.50 each. How many yo-yos must be sold in a year to earn a profit of at least \$140,...
February 3, 2016

math
Francine and Cheryl received equal scores on a test made up of multiple choice questions and an essay. Francine got 34 multiple choice questions correct and received 14 points for her essay. Cheryl got 30 multiple choice questions correct and received 22 points for her essay. ...
December 7, 2015

math
write each expression using n as your variable.then simplify fully. 1.five more than the sum of a number and ten. 2.the product of eight and seven less than a number. 3.the quotient of a number and three, increased by one. 4.ten less than the product of six and eight less than...
August 26, 2015

stats
Find the explained variation for the paired data. The equation of the regression line for the paired data below is y-hat = 3x. Find the explained variation. x= 2 4 5 6 y= 7 11 13 20
May 22, 2015

Chemistry
Ive been working on a homework assignment for hours now. It's only 6 problems and I cant figure them out. I've tried and tried but everytime I type something in It says im wrong! Please help. A compound with a formula mass of 116.07 amu is found to be 41.39% carbon, 3....
May 1, 2015

math
pentogon
April 8, 2015

Chemistry
January 4, 2015

Chemistry
Calculate the number of atoms in 2.58 mol antimony. Its an example problem, I need help!
January 4, 2015

Calculus
You are driving at 20 m/s when you notice a tree blocking the road, 30 meters ahead of you. It takes you half a second to react before slamming on the brakes. Your car decelerates at a constant 10 m/s2. How far does your car travel before stopping? Will you hit the tree?
November 17, 2014

geomtry
1/5 (a+10)=-3
October 25, 2014

Math
What is 225-256dto the 2nd power =?
August 20, 2014

math
Sue is two years older than Chris. Jim is 4 years older than Sue. Their ages total 68. How old is Sue?
July 7, 2014

algebra
Identify the solution of the system of equations, if any. -4x-2y+=4 8y+16x-16
June 20, 2014

Principles of Public Speaking: Lesson 8
nonverbal communication includes:
May 12, 2014

SP180.1.2 Principles of Public Speaking: Lesson 8
SP180.1.2 Principles of Public Speaking: Lesson 8
May 12, 2014

Probability
May 1, 2014

Probability
April 30, 2014

probability
does someone have an answer for this question? i am stuck
April 22, 2014

An experiment was conducted to determine the abrasion resistance of a new type of automobile paint. Twelve different strips of metal were painted with the new paint. The abrasion resistance of each piece was then tested on a machine. In the sample, the abrasion resistance ...
April 3, 2014

Probability
@RVE, do you know what c1 is equal to? I'm still having trouble with this problem.
April 2, 2014

Probability
Could you possibly give the answers for the first parts as well?
April 2, 2014

College Chemistry
How many moles of aluminum ions are present in 0.50 mole of Al2(SO4)3?
March 7, 2014

physics
The blades of a ceiling fan have a radius of 0.340m and are rotating about a fixed axis with an intial angular velocity of +1.25rad/s2. When the switch on the fan is turned to a higher speed, the blades acire an angular acceleration of +2.55rad/s2. After 0.480s have elapsed ...
January 21, 2014

physics
if u have swam one lap in a swimming pool, that means from one end to the other and back. In 3.5 h, a swimmer makes exactly 60 laps in the pool, that is 40 m long. Determine the distance the swimmer traveled, the total displacement of the swimmer, the swimmer's average ...
January 14, 2014

math
what is 2x+y=-7 in slope intercept form?
October 21, 2013

math
Find the measure of the largest acute angle in a 5-12-13 triangle.
October 1, 2013

Chemistry
Heat energy is added to a 325 g block of nickel, and the temperature increases from 23 degrees celsius to 51 degrees celsius. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be?
September 12, 2013

Government
5 is true. 8 is federalism
June 26, 2013

psychology
dignity and human welfare
June 25, 2013

Math
You bake brownies in a 9-by15-inch pan. If you cut the brownies into servings 3 inch by 3 inch., how many squares will I have?
May 9, 2013

math
2 csc x - 3 = - 5
April 18, 2013

World Geography
REVIEW 1.Which of the following is an abundant natural resource found in Canada? A. Gold B. Timber C. Soybeans<<<<< D. Cotton
April 5, 2013

World Geography
REVIEW 1.In what ways did immigrants contribute to American society in the early 1900s? A. They increased the defensive power of the United States. B. They worked in factories, built railroads, and opened businesses. C. The took political power in most eastern cities.<<&...
April 5, 2013

World Geography
REVIEW 1.Where is the majority of Canada’s oil found? A. Along the Atlantic Coast B. Along the border with the United States C. In western Canada<<<<<< D. Near the Arctic Ocean 2. The concept of multiculturalism encourages Canadians to A. embrace English...
April 5, 2013

World Geography
REVIEW 1.The forests of the Pacific Northwest are just one of the many different ______________ in the United States where many people work in the same industry. A. elevation regions B. political regions C. climate regions<<<<< D. economic regions 2.The ...
April 5, 2013

World Geography
REVIEW 1.Which of Canada’s regions has limited vegetation and freezing temperatures most of the year? A. Maritime B. Subarctic C. Tundra<<<<< D. Continental 2.NAFTA is a trade agreement between A. America, China, and India. B. America, Canada, and Mexico. C...
April 5, 2013

World Geography
REVIEW 1.What natural resource most attracted European traders to Canada? A. Timber<<<<< B. Animal furs C. Fish D. Whales 2.Which of the following doubled the size of the United States in 1803? A. The Civil War<<<<<<< B. The Louisiana ...
April 5, 2013

World Geography
REVIEW 1.Which of the following was one cause of the Civil War in the United States? A. The South wanted new states to allow slavery and the North did not. B. The North wanted new states to allow slavery and the South did not. C. The North opposed signing treaties with Native ...
April 5, 2013

World Geography
REVIEW 1.Which of the following has made American culture more accessible to the rest of the world? A. Scientific Research B. Imports C. The Internet D. Immigration<<<<< 2.Which of the major continental regions of the United States is best for farming? A. The ...
April 5, 2013

World Geography
REVIEW 1.Where is Canada’s population density highest? A. In the cities of Northern Canada B. In cities in central Canada<<<<<<< C. In cities along the United States border D. In cities along the Atlantic and Pacific Coasts 2.The highest elevations in...
April 5, 2013

World Geography
REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates<<<<<<<< C. Literacy rate of adult population D. Average unemployment among citizens 2.The Canadian ...
April 5, 2013

World Geography
REVIEW 1.Which of the following statements about the natural resources of the United States is most accurate? A. The many agricultural resources of the United States have made up for its lack of other resources.<<<<<<<<< B. U.S. industry and ...
April 5, 2013

World Geography
REVIEW 1.What type of information does a physical map show? A. Natural features<<<<<<< B. Countries or states C. Location of human features D. Distribution of human and physical features 2.In recent years, millions of Chinese workers have moved from ...
April 5, 2013

World Geography
REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s surface. C. ...
April 5, 2013

World Geography
REVIEW 1.Demographers are scientists who study A. weather and climate. B. pollution. <<<<<<< C. human populations. D. ocean currents In any particular culture, an idea or way of doing things that is common to the culture is called a ____________. A. ...
April 5, 2013

World Geography
REVIEW 1.An area in which a single culture or cultural trait is dominant is called a ____________. A. culture B. cultural landscape <<<<<<<, C. norm D. culture region 2.Cultures often develop along with science and ____________. A. tools <<<<&...
April 5, 2013

World Geography
REVIEW 1.____________ spread cultural traits because they bring cultural traditions with them to their new homeland. A. Traders B. Explorers <<<<<<< C. Migrants D. Native Americans 2.People who live in poor, overcrowded urban areas, or _____________, are ...
April 5, 2013

World Geography
REVIWE 1.Using up resources is one of the negative effects of A. the birth rate. B. the death rate.<<<<<<<<< C. the infant mortality rate. D. rapid population growth. 2. The Prime Meridian and other imaginary north-south lines measure A. longitude.&...
April 5, 2013

World Geography
thank u for the help
April 5, 2013

World Geography
REVIEW Which ecosystem usually supports thick forests of deciduous trees? A. Tropical forest B. Temperate forest C. Savanna <<<<<<< D. Subarctic forest Love, death, peace, and war are examples of ____________ that relate to the entire world. A. paintings B...
April 5, 2013

Math
Triangle Lmn is similar to triangle xyz. Triangle LMN has a side of 5 and 3. The scale factor of triangle Lmn to triangle xyz is 2:5. What is triangle xyz's length? Helppppp Meeeeeeeeeee!!!
April 2, 2013

math
The point (5, -7) is dilated by a scale factor of 4 about the origin. Find the location of the new point. Show your work.
March 27, 2013

geometry
The scale factor is 5/4. Find the area of the pre-image if the area of the image is 150 in2.Show your work.
March 27, 2013

so it would be 144 cause 472-43=429 next you would divide 429 with 3 so 3 goes into 4 one time so put the 3 there then subtract 4-3=1 then you bring down the 2 and get 12!next thing you do is 3 goes into 12,4 times so you put the 4 next to the 1 and get 14.Your almost done!...
March 25, 2013

healh
Posture, ________, is maintained as a result of muscle contraction. A. Such as singing and painting B. Such as sitting and standing C. Such as jumping and skipping D. All of the above
February 7, 2013

Ideally, sustainable development should ___________. A)put the protection of the environment ahead of human needs B)provide for human needs at the expense of the environment C)use more natural resources to make goods to meet human needs D)preserve ecosystems while providing ...
December 26, 2012

math
20. Miguel is driving his motorboat across a river. The speed of the boat in still water is 11 mi/h. The river flows directly south at 2 mi/h. If Miguel heads directly west, what are the boat’s resultant speed and direction?
December 26, 2012

English
What was the conflict in "The People Could Fly.
October 21, 2012

english
I don't know. I'm stuck on tht question.
September 18, 2012

Health
August 30, 2012

Chemistry
How would you separate a mixture of potassium chloride from copper metal?
July 23, 2012

bio
Relate how the arrangement of electrons determines an element’s reactivity
May 21, 2012

Bio
Relate how bonding leads to the formation of molecules and compounds.
May 21, 2012

math
If = 58° and p = 150 in, what is the value of n to the nearest tenth of an inch?
April 15, 2012

History
What rhetorical devices were used in Seom on the mount
April 3, 2012

economics
Dakota, Mark, and Lucy will not.....no one
February 10, 2012

math
Solve by the substitution method. What is the solution of the system? 3x+9y=48 -6x+y=56
January 20, 2012

History
the influence of the Enlightenment ideas caused what major event to happen in france ?
January 19, 2012

geometry
Find the measure of each interior angle using the given information quadrilateral RSTU with m<R=6x-4,m<S=2r+8 and how did you come up with answer?
January 17, 2012

geometry
When is the perpendicular bisector of a side of a regular n-gon also an angle bisector?
December 8, 2011

language arts
Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. AFFABILITY:SMILE a. pain:grimace b. resilience:recovery c. turbulence:pseudonym d. abrasion:bruise (I think it is "a" but i just ...
November 15, 2011

language arts
Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. SAGE:WISDOM a. author:anthology b. speaker:tirade c. acrobat:agility (I'm thinking c but I'm not sure) SCOLDING:TIRADE a. sage:...
November 15, 2011

soc. stud.
well, yes... but still, burning a doll? it still sounds a little extreme and crazy.
November 14, 2011

soc. stud.
im not sure- i cant really think of anything that would drive me to burning a doll that represents someone.
November 14, 2011

soc. stud.
how could you use effigies today to have your voice heard?
November 14, 2011

soc. stud.
how could you use the Sons of Liberty today to have your voice heard?
November 14, 2011

math
i am an even three digit number if you round me to the nearest ten i become 200 the sum of my digits is 18 what number am i
September 26, 2011

math
i am an odd three digit number if you round me to the ten o become 500 the sum of my digits 8 what numger am i
September 26, 2011

geometry
if bc = 2x-3 and ac = 2x+10, find the length of ab
August 15, 2011

1. false 3. true 6. false 7. true 11. true 16. classless 17. d 21. C 25. d 27. A everything else is right :)
June 27, 2011

math
i need to unscrmble th word enitmelgens its som math term HHHHEEEELLLLPPP!!!!!!!!!!!!!!!!! please:)
March 14, 2011

math
i need to unscramble these math words icarlafto untoegrnc enitmelgen
March 14, 2011

ALGEBRA
The sum of 13 and twice a number h
March 2, 2011

physics
If a metal wire carries a current of 130 mA, how long does it take for 3.50×10 20 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10 −19 C. Answer in units of s.
February 22, 2011

A/P
The number of electrons in the outer shell of K+. I think it has 0 electrons in the outer shell since it lose some. Am I correct?
February 12, 2011

physics
In this problem you will determine the average velocity of a moving object from the graph of its position as a function of time . A traveling object might move at different speeds and in different directions during an interval of time, but if we ask at what constant velocity ...
January 30, 2011

history
a.Which statement about lynchings in the South in the 1890s is true? 1. Lynchings decreased compared to the Reconstruction era. 2. Leaders of lynch mobs tended to come from the wealthy ruling class. 3. Lynchings and acts of violence against blacks increased dramatically. 4. ...
January 27, 2011

history
a is 1 then and b is 2?
January 27, 2011

history
a. Which statement about the Ku Klux Klan during Reconstruction is NOT true? 1. Southern governments never created policies that resulted in the arrest of members. 2. They attempted to stop blacks from using their right to vote. 3. Blacks and whites who supported democratic ...
January 27, 2011

cemistry
what information is provided by the atomic mass?
December 8, 2010

Physics--diffraction
Suppose you have measured the diffraction pattern of a grating with d = 0.09 mm and have found that the spots were separated by s = 1 cm. Now you want to determine d for an unknown grating. With the unknown grating, the spots are separated by s = 3.1 cm. What is d?
November 3, 2010

english
What is mixed word order?
September 13, 2010

math
ordered pair
August 20, 2010

genetics/genome sequencing
I pasted the sequences of human and chimps into Transeq and this is what I got: >exo18_MYH16_human_1 EQLNKLMTTLHSRTPFCPLYYPQ*V*AIG >exo18_MYH16_ximpanze_1 EQLNKLMTTLHSTAPHFVRCIIPNEFKQSX I know that the * signifies gaps. I need help with this question, as I am not sure ...
April 27, 2010

A violin string has a length of 0.350 m and is tuned to concert G, with f = 392 Hz. Where must the violinist place her finger to play concert A, with f = 430 Hz? If this position is to remain correct to half the width of a finger (that is, to within 0.600 cm), what is the ...
April 23, 2010

A violin string has a length of 0.350 m and is tuned to concert G, with f = 392 Hz. Where must the violinist place her finger to play concert A, with f = 430 Hz? If this position is to remain correct to half the width of a finger (that is, to within 0.600 cm), what is the ...
April 23, 2010

Undamped, forced oscillation
Undamped, forced oscillation?!?!? I have this question and can't seem to get the right answer. Damping is negligible for a 0.130 kg object hanging from a light 6.30 N/m spring. A sinusoidal force with an amplitude of 1.70 N drives the system. At what frequency will the ...
April 8, 2010

Biochemistry
How is it that cortisol stimulates glycogen synthesis and gluconeogenesis? Isn't that contradictory?
March 18, 2010

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