Saturday

August 1, 2015

August 1, 2015

Total # Posts: 2,234

**math**

There are 25 students in math class. 15 students are female. What percent of the class is female
*November 15, 2010*

**Chemistry**

i don't know I need help too
*November 15, 2010*

**Physics**

A 260 kg piano slides 4.1 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. (b) Calculate the work ...
*November 14, 2010*

**Physics**

A vertical spring (ignore its mass), whose spring stiffness constant is 880 N/m, is attached to a table and is compressed down 0.160 m. (a) What upward speed can it give to a 0.300 kg ball when released? (b) How high above its original position (spring compressed) will the ...
*November 14, 2010*

**Western civilization**

Describe and Explain Mussolini's rise to power.
*November 11, 2010*

**Chemistry**

What volume of 0.200 N H2SO4 is required to neutralize a solution containing 8.00 equivalents of NaOH?
*November 10, 2010*

**1st grade**

Erin passed Angelina in the hallaway
*November 8, 2010*

**Math, Algebra**

A=1/2h(b1=b2) A=200 , b1=24 , h=10
*November 7, 2010*

**math**

multiply and simplify 5Ib. 6oz. * 5
*November 7, 2010*

**english**

explain why communicationis described as a process
*November 6, 2010*

**Math**

multiply and simplify 5ib.6oz. * 5
*November 4, 2010*

**physics**

A 2.38 × 103 kg car requires 5.4 kJ of work to move from rest to some final speed. During this time, the car moves 28.1 m. Neglecting friction, find a) the final speed. Answer in units of m/s.
*November 2, 2010*

**Physics**

I solved the following question: "A ball is launched from the top of a 320 m high building at 50 m/s at an angle of 37 degrees to the horizontal. For the first 10 seconds of flight, make a table of the vertical position from the ground versus time similar to the one below...
*November 1, 2010*

**statistics**

The mailing list of an agency that markets scuba-diving trips to the Florida Keys contains 60% males and 40% females. What is the probability that 20 of the 30 are men?
*October 31, 2010*

**Algebra**

The difference of 89,000-58,000 divided by 58,000
*October 31, 2010*

**Physics**

Estimate the force a person must exert on a string attached to a 0.160 kg ball to make the ball revolve in a circle when the length of the string is 0.600 m. The ball makes 1.80 revolutions per second. Do not ignore the weight of the ball. In particular, find the magnitude of ...
*October 31, 2010*

**statistics**

The mailing list of an agency that markets scuba-diving trips to the Florida Keys contains 60% males and 40% females. What is the probability that 20 of the 30 are men?
*October 31, 2010*

**physics**

In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." (See Fig. 5-35.) The room radius is 5.4 m, and the rotation frequency is 0.8 revolutions per second when the floor drops out. What is the minimum coefficient of static ...
*October 31, 2010*

**crt-205**

can someone help to indentify fallacies and rhetorical devices in this article? The government's 2008 banking bailout is a fraud perpetrated on the American people. The government has abandoned sound money practices in favor of allowing the Federal Reserve—a banking ...
*October 30, 2010*

**axia crt/205**

can someone help me to identify the fallacies and rhetorical devices in this article? While the U.S. government's 2008 bailout of failing banks flies in the face of the nation's capitalist principles, it is a necessary evil. Without shoring up these financial ...
*October 30, 2010*

**PHYSICS**

9.8 m/s^2?
*October 29, 2010*

**Calc**

Helicopters.
*October 28, 2010*

**physics**

what is the efficiency of a pulley that requires a worker to do 250 J of work to lift an object that requires 170 J of work
*October 27, 2010*

**4 th grade math input outout box**

how do you get from 6 to 40
*October 26, 2010*

**4th grade math input output tables**

how do you get from 6 to 40
*October 25, 2010*

**poetry**

I incline in the wrong direction a voice cries faint as in a dream from the belly of the wall Is "A voice cries faint as in a dream" an example of a metaphor? if so, why?
*October 23, 2010*

**english**

Thank you
*October 23, 2010*

**english**

Can someone explain what is the difference between a connotation and denotation?
*October 23, 2010*

**poetry**

In this stanza: where there's a wall there are words to whisper by a loose brick wailing prayers to utter special codes to tap birds to carry messages taped to their feet there are letters to be written novels even Is it talking about God?
*October 22, 2010*

**poetry**

If possible may i get an explanation of what it means? on this side of the wall I am standing staring at the top lost in the clouds I hear every sound you make but cannot see you
*October 22, 2010*

**poetry**

"battering ram"-- means that in every problem, there is a solution?
*October 22, 2010*

**poetry**

where there's a wall there's a way around, over, or through there's a gate maybe a ladder a door a sentinel who sometimes sleeps there are secret passwords you can overhear there are methods of torture for extracting clues to maps of underground passageways there ...
*October 22, 2010*

**College mechanic vibration**

A half-car model of an automobile suspension system is shown below. You are to design its suspension systems (values of spring constants and damping constants). Generally, for ride comfort, it is desired to have the bounce motion at low frequency and the pitch motion at ...
*October 18, 2010*

**Epidemiology**

• Consider each of the following scenarios and explain whether the variable in question is a confounder: a. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain whether gender is a confounder. b. A case-...
*October 17, 2010*

**quick ?**

What is meant by the term concrete reality?
*October 14, 2010*

**algebra**

can somebody tell me how to solve this inequality equation? (a-2)(a-3)<0 I know the opposite was 2 and 3..but how do i determine the greater than, less than or equal to? Explain please.
*October 14, 2010*

**Math**

For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school.
*October 13, 2010*

**statistics**

in a scientific study there are 8 pigs 5 of which are pregant if 3 are selected at random without replaement find the probability that all are pregant
*October 13, 2010*

**statistics**

in a scientfic study there are 8 pigs 5 of which are pregnant if three are selected at random without replacement find the probability that all are pregant
*October 13, 2010*

**statistics**

The number of defects in a random sample of 200 parts produced by a machine is binomially distributed with p = .03. Based on this information, the expected number of defects in the sample is 6. Is it True or False?
*October 13, 2010*

**math**

find all zero's for 2x^4-11x^3+16x^2-x-6 im needing the complex, rational, irrational, and all of the zero's
*October 12, 2010*

**ENGLISH**

What criteria do you suggest I make for my evaluation paper? My topic is that the school's celebratory bonfire for the basketball championship is a waste of time.
*October 11, 2010*

**Geology**

What information indicates the probable magnitude of future earthquakes along a specific fault segment?
*October 10, 2010*

**Jones**

1. To what extent can earthquakes be predicted? 3. What can a trench dug across an active fault show about past fault movement? 4. What is a seismic gap, and what is its significance in determining future fault activity? 5. What information indicates the probable magnitude of ...
*October 10, 2010*

**physics**

motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of the force on the rider from the motorcycle?
*October 9, 2010*

**physics**

THANKS!!!
*October 9, 2010*

**algebra**

A book has N consecutive pages torn out. Suppose A is the last numbered page before the torn out section and B is the forst numbered page following the torn out section. Fins the formula for N in terms of A and B * Each paper in the book has 2 sides. Each side is one page
*October 7, 2010*

**physics**

I know the velocity ration is 2, not sure of the other
*October 5, 2010*

**3rd grade math**

Ashton broke apart a number into 30+7 what number did he start with?
*October 5, 2010*

**statistics**

In a survey, 63% of Americans said they own an answering machine. If 14 Americans are selected at random, find the probability that exactly 9 own an answering machine.
*October 5, 2010*

**12th grade**

(x+4)(x+3)=0 therefore, (x+2)(x+4)(x+3)=0? x= -2, -4, -3?
*October 5, 2010*

**12th grade**

I used synthetic division to get (x+2)(x^2 + x + 12)=0
*October 5, 2010*

**12th grade**

Can somebody tell me what to do next for solving polynomial equations? x^3 - 3x^2 -4x + 12= 0 I got the factors of 12 and i used 2. (x+2) (x^2 + x + 12)=0 What do I do next?
*October 5, 2010*

**Math**

Write an equation that shows 64 as a product of prime numbers
*October 4, 2010*

**physics**

A 100-N child is in a swing that is attached to ropes 1.90 m long. Find the gravitational potential energy (b) when the ropes make a 35.0° angle with the vertical c) when the child is at the bottom of the circular arc
*October 4, 2010*

**physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 29.0 s. She then gets out of the cart and starts walking at an average speed of 1.40 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.20 m/s?
*October 1, 2010*

**Math**

At Mr.Vid's Rentals you can join his VID Club for a monthly membership fee of $30.Club members pay only $.85 to rent each movie. If you are not a member of the VID Club, the movies rent for $2.25 each.How many videos would you have to rent each month to make a membership ...
*September 29, 2010*

**math**

the width of a rectangle is 6 cm less than the length. the perimeter is 72cm. write and solve an equation to find the width and length of a rectangel.
*September 28, 2010*

**con law**

explain how bargaining and accomodation affect opinion writing on the court
*September 27, 2010*

**poltical science**

what are amicus curiae briefS?
*September 27, 2010*

**political science**

yes
*September 27, 2010*

**political science**

i dont even know where to begin?
*September 27, 2010*

**political science**

discuss the political environment leading to the court's decision in Marbury v Madison (1803). How did Chief Justice john marshall secure the power of judical review?
*September 27, 2010*

**math**

Oh i'm sorry i didn't see that. im so sorry .
*September 27, 2010*

**math**

You didn't answer this one. you answered someone else's that was about the U.S and Greek people.
*September 27, 2010*

**math**

The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?
*September 27, 2010*

**math**

The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?
*September 27, 2010*

**12th grade**

bikes tyre filled with air pressure=6 atm =6x10^5 Pa on tempreture 20c = 20+273 = 293 K.. we used the bike on tempreture at 45 c the volume increase by 2%. find the new volume?PV=nRT
*September 26, 2010*

**math**

1,130,000 in scientific notation
*September 24, 2010*

**physics**

An airplane flies 200 km due west from city A to city B and then 340 km in the direction of 35.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C? ° north of west
*September 24, 2010*

**math **

how many 7 digit numbers can less than 1,048,000 can be made using digits 0,1,4,6,7,8 and 9?
*September 23, 2010*

**math**

if a+b=3 and a^2+b^2=6, what is a^3 + b^3
*September 22, 2010*

**math**

let s be a positive number. Solve the following equation for x. √a^3√a^4√a^3=a^x
*September 22, 2010*

**math**

how do i solve by factoring x^4+2x^2y^2+9y^4
*September 22, 2010*

**Algebra**

thank you....you were right
*September 21, 2010*

**Algebra**

I need to division which is (x^2-6x-27)/(x+3) when I do it I get an answer of (x-9)-27/x+3 but it seems to be wrong. Can someone see what mistake I did... THANKS
*September 21, 2010*

**MATH**

thanks for the link...It helped me a lot
*September 21, 2010*

**MATH**

Perform the indicated division 2x^2-7x-13/x-5
*September 21, 2010*

**Algebra**

Perform the indicated division 2x^2-7x-13/x-5
*September 21, 2010*

**Algebra**

Perform the indicated division 2x^2-7x-13/x-5
*September 21, 2010*

**Algebra**

Perform the indicated division 2x^2-7x-13/x-5
*September 21, 2010*

**Algebra**

Perform the indicated division 2x^2-7x-13/x-5
*September 21, 2010*

**Calculus**

Thanks so much
*September 20, 2010*

**Calculus**

Find the absolute maximum and minimum values of f(x)=(x^2)(e^(-x/2)) on the interval [-1,6]
*September 20, 2010*

**Maths**

hoe can i derive this equation. s(v)=(4pi)^1/3(3v)^2/3 and please explain.
*September 20, 2010*

**Physics**

Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a ...
*September 19, 2010*

**Physics**

Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a ...
*September 19, 2010*

**Math**

On what interval(s) is the curve y=(2e^x)-(e^(-3x)) concave downward?
*September 18, 2010*

**math**

Can not be solved. You can simply it down more to get 3x+6=3x. If you move the 3x to the same side you get 6=0 which is false.
*September 18, 2010*

**GPA?**

Would taking extra classes online help raise my GPA to a 2.8?? (I'm a junior and i need it raised before the end of my senior year. I have a 1.27 Grade Point Average right now.)
*September 18, 2010*

**algebra**

The difference of a number and 7 is the same as 45 less the number. find the number
*September 16, 2010*

**Europe**

what role did the geography of Europe play in the development of and ways of life in these towns?
*September 15, 2010*

**Earth Science**

During the Dinosaur Ages, if there was a region with a mountain range, alluvial plain, and a shallow sea. Which place would it be the most likely for dinosaur fossils to be formed?
*September 13, 2010*

**MATH**

Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 100 quarts that is 30% alcohol?
*September 11, 2010*

**Algebra**

ok I have got the answer anyway...thanks for ur help in the other question
*September 10, 2010*

**Algebra**

yes thats correct...Can you see where i am making a mistake in this problem. 1-125x^3 I got answer of -(5x-1)(25x^2+5x+1) but it seems to be wrong
*September 10, 2010*

**Algebra**

Factor 4xy+28x+y+7
*September 10, 2010*

**Algebra**

never mind. I have fiugured out the answers
*September 10, 2010*

**Algebra**

Could someone please help me with those 2 problems...thanks a lot for any of your help Use an algebraic approach to solve the problem. Find three consecutive integers whose sum is 57. Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of ...
*September 10, 2010*