Thursday

January 19, 2017
Total # Posts: 1,838

**Math**

At a party, 55 handshakes took place as everyone shook hands with everyone else. How many people were at the party?

*February 5, 2010*

**math**

What are the odds against throwing either a sum of 3 or 8 in rolling a pair of regular dice?

*February 5, 2010*

**math**

What are the odds against getting a head and a tail in a single toss of two coins?

*February 5, 2010*

**physics**

There's a problem my professor assigned, but I'm not sure which equation/process I should use to solve it. Please help. Two particles having charges of 0.420nC and 15.1nC are separated by a distance of 1.50m. At what point along the line (in m from the particle with ....

*February 2, 2010*

**math**

-x +2 18 ------------- 8 9

*January 26, 2010*

**math**

Give a verbal, visual, numerical, and graphic representation for the idea one-fourth.

*January 22, 2010*

**math**

How would you instruct someone to take one-fourth of a pizza if you could not use the word one-fourth?

*January 22, 2010*

**Physics**

I am reposting this since I did so incorrectly the first time. (I apologize for posting it twice the first time as well...I accidently hit refresh) Here is the problem with the proper units: You are trying to overhear a juicy conversation, but from your distance of 15.0m , it ...

*January 18, 2010*

**physics**

You are trying to overhear a juicy conversation, but from your distance of 15.0 , it sounds like only an average whisper of 35.0 . So you decide to move closer to give the conversation a sound level of 60.0 instead. How close should you come? (in cm)

*January 18, 2010*

**physics**

I didn't mean to post the question twice and I have absolutely no idea where to start. I do not need the answer necessarily, but an equation to work with would be great. Thank you.

*January 18, 2010*

**physics**

You are trying to overhear a juicy conversation, but from your distance of 15.0 , it sounds like only an average whisper of 35.0 . So you decide to move closer to give the conversation a sound level of 60.0 instead. How close should you come? (in cm)

*January 18, 2010*

**7th grade math**

I am in 6th grade and i am haveing trouble with statistics and how to memorize them!!! How can i do this???? Is there a special way???

*January 18, 2010*

**3rd grade science**

The moon rotates in a circle around Earth so sometimes it is between Earth and mars and sometimes it is not. You can put the moon anywhere around the Earth and your model will come out perfect :)

*January 18, 2010*

**3rd grade science**

Hi i would like to tell you that the moon revolves around the earth so somewere close to the earth or around it would be fine!!!!

*January 18, 2010*

**physics**

For real images in converging lenses, I know that if the object distance increases, then the image distance will decrease. However, I need to explain WHY and I don't know? Pleaes help.

*January 17, 2010*

**grade 11 physics**

what is the index of refraction of a medium in which the speed of this radiation is 2.54X10^8 m/s? I don't even know where to start...

*January 15, 2010*

**geometry**

What is the lateral area of a cylinder? How do you find it? Is there a formula?

*January 15, 2010*

**geometry**

How do you find the lateral area and perimeter of a pentagonal pyramid? ex: The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.

*January 15, 2010*

**Geometry**

How do you go about finding the lateral area of a trianglar prism? Ex: The base of a triangular prism is an equilateral triangle with a perimeter of 42 cm. If the height of the prism is 10 cm, find the lateral area. Thanks for the help in advance

*January 15, 2010*

**math**

i can type 19 words in 38 seconds. how many i can type in 60 seconds.

*January 15, 2010*

**physics**

a. speed=distance/time= 2PI*radius/time What does 2PI mean?

*January 10, 2010*

**physics**

The combined mass of a race car and its driver is 600. kilograms. Traveling at a constant speed, the car completes one lap around a circular track of radius 160 meters in 36 seconds. A) Based on the given information, calculate the speed of the car. B) Calculate the magnitude ...

*January 10, 2010*

**math 157**

Is 3x^2=5 a linear, quadratic or exponential function? and how

*January 10, 2010*

**math**

A small college has 1250 students. There are 30 more women than men. How many women attend the college?

*January 5, 2010*

**7th grade**

I'm in 8th grade and I can't even figure that out Goshh.(:

*January 5, 2010*

**Math for Educators**

Show how to slice a cylindrical piece of cheese into eight congruent pieces with three slices.

*December 24, 2009*

**math**

Show how to slice a cylindrical piece of cheese into eight congruent pieces with three slices.

*December 21, 2009*

**history**

what sort of armor did the Black Prince wear? what was it made out of? how heavy was it and how functional was it? I've been looking but all i can find it that it was black, heavy and not very functional. thanks!

*December 14, 2009*

**social study**

how to make tepee which is native American house?

*December 13, 2009*

**Science**

He came out wet

*December 11, 2009*

**physics**

How far does a 1.58-kg stone with the kinetic energy of 3.11 J go in 1.86 s if it is moving in a straight line?

*December 11, 2009*

**Physics**

Two joules of energy are required to extend a spring by .25 m. What is the spring constant?

*December 11, 2009*

**Physics**

A 770N woman sitting on a frictionless surface throw a 2.6 kg book at a speed of 35 m/s. What is her recoil speed in m/s?

*December 11, 2009*

**Physics**

On a frozen pond, a person kicks a 10.0 kg sled, giving it an initial speed of 12.2 m/s. How far does the sled move if the coefficient of kinetic friction between the sled and the ice is .10?

*December 11, 2009*

**Physics**

A 21-kg child swings on a playground swing 3.4 m long. What is the period of her motion? If her brother, who weighs twice as much as she does,rides on the swing instead, what is the period of the motion?

*December 11, 2009*

**us history**

In what ways did democracy create a new political culture? How did democracy impact social change?

*December 8, 2009*

**Spelling**

brother mother fly

*December 8, 2009*

**Spelling**

Nail Hammer screw

*December 8, 2009*

**Math**

The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

*December 2, 2009*

**Foundations in business**

Analyze the problems, issues, and tasks employees will have to solve to best provide such a service to customers

*December 2, 2009*

**physics**

A boy reaches out of a window and tosses a ball straight up with a speed of 15 m/s. The ball is 20 m above the ground as he releases it. Use energy to find the following.

*December 1, 2009*

**College Physics**

A car starts from rest on a curve with a radius of 150 and accelerates at 1.30 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.30 ?

*November 28, 2009*

**pre-algebra**

42 is 60% of what number? and what percent of 400 is 20?

*November 26, 2009*

**pre-algebra**

what percent of 400 is 20?

*November 26, 2009*

**physics**

Calculate the index of refraction of a diamond if the speed of light in a diamond is 1.24x10 to the power of 8 m/s. Please break it down and show all the steps. :) thank you

*November 25, 2009*

**pre-algebra**

solve for X when 2/3 X = 2 2/9

*November 19, 2009*

**math**

Barbara knows that she will need to buy a new car in 4 years. The car will cost $15,000 by then. How much should she invest now at 10%, compounded quarterly, so that she will have enough to buy a new car? Round to the nearest cent.

*November 15, 2009*

**Math**

How do you write 2.78 in expanded form

*November 14, 2009*

**3rd grade**

His answer is reasonable because 75-30=45 and 45+30=75.

*November 11, 2009*

**Social Studies**

During the time of Troy and the Trojan war was it common for the king and his wife to be buried near each other? Website refs would be great also... thanks:)

*November 11, 2009*

**Social Studies**

What is priam's treasure and if you have any websites about it please tlel me thanks:)

*November 9, 2009*

**Organic Chemistry**

How is the rate of adjusted when using a sand bath as a heat source?

*November 7, 2009*

**physics**

23.3

*November 6, 2009*

**chemistry help!**

Ca Co3(s) 2HCl (aq) Ca Cl2(aq)+H2o(e)+Co2(g)

*November 6, 2009*

**9th grade**

what do you need help with?

*November 3, 2009*

**math**

... and then since the 's' isn't a like term, it stays the way it is.

*November 3, 2009*

**math**

exactly =)

*November 3, 2009*

**math**

you would combine the r's just by adding them together, because they are the same variable. The first r in the equation doesn't have a number with it, right? So since it isn't attatched to a number, pretend that there is an invisible 1 in front of it. So when you ...

*November 3, 2009*

**math**

OH sorry typo! 3 +1 and you'd have 4r! sorry!

*November 3, 2009*

**math**

Well since both the 'r's are like terms, you'd combine them, and don't forget that there is a 1 in front of each variable, so you'd add 3 + 4 and have 4r.

*November 3, 2009*

**Algebra1**

Here's the problem. I have to write an equationa and solve. The greater of two consecutive integers is 15 more than twice the smaller. Find the intergers. Thank you guys so much! =)

*November 1, 2009*

**English H1**

Thank you! :)

*November 1, 2009*

**English H1**

Can someone please help explain Lord of the Flies by William Golding to me? I understand the general concept, but certain parts I can't seem to grasp. I'm only as far as Chapter Five. Thank you SO much to anyone who can help!

*November 1, 2009*

**ps 13**

how to find the Landmark in a set of numbers

*October 28, 2009*

**Science**

Who studies the biosphere?

*October 25, 2009*

**biology**

two or more compounds combined but keep their chemical identity a.solution b.carohydrates cproteins or d.isotope

*October 22, 2009*

**healthcare**

How might a foundation in medical terminology help you in fulfilling your education and career goals? How might a basic understanding of medical terminology benefit you personally?

*October 20, 2009*

**7th grade math**

which of the averages best represents data mean 18.25, median 11, mode 5 or range 34?

*October 18, 2009*

**Macroeconomics**

Suppose a natural disaster destroys a fraction of the nation's capital stock. Determine the effects on output, consumption, employment, and the real wage. Make sure you explain the result pointing out income and substitution effects. Thank you for any help!

*October 18, 2009*

**Macroeconomics**

Suppose a natural disaster destroys a fraction of the nation's capital stock. Determine the effects on output, consumption, employment, and the real wage. Make sure you explain the result pointing out income and substitution effects. Thank you for any help!

*October 18, 2009*

**French**

Can you help me unscramble this french word callipygeophile

*October 17, 2009*

**Science**

thanks so much

*October 12, 2009*

**Science**

What is the geographical location of the Marine and Ice Cap Biomes? thanks:)

*October 12, 2009*

**Chemistry**

How consistent was the cabbage juice indicator for this lab? Discuss the limitations of using red cabbage juice as an indicator in comparison to the universal pH paper.

*October 12, 2009*

**Science**

basins

*October 11, 2009*

**Science**

Well like all over the world, the places where they mostly are and not like in desert places. Overall

*October 11, 2009*

**Science**

What is the geographical location of lakes and ponds? like the main area that they are in... thanks:)

*October 11, 2009*

**physics**

A person takes a trip, driving with a constant speed of 98.5 km/h except for a 21.0 min rest stop. If the person's average speed is 63.3 km/h, how much time is spent on the trip and how far does the person travel? How much time in hours and how far in km

*October 9, 2009*

**Science**

Do you guys know of a website where i can find the average temperature of these biomes? Tundra, Tiaga, Temperate Deciduous Forest: Tropical Rainforest: Grasslands: Desert: Rivers: Lakes & Ponds: Coral Reefs: Temperate Oceans: thanks:)

*October 8, 2009*

**AP World History**

describe the major classical period trading patterswithin and among China,India, and Mediterranean?

*October 6, 2009*

**A.P World History**

Describe the major classical period trading patters within and among China India, and the Mediterranean.

*October 5, 2009*

**science**

What is the density of an object if volume is 50 milliliters and the mass is 25 grams?

*October 4, 2009*

**business**

write a 200 to 300 word description of a business scenario either real or fictional that depicts each of the following forms of business

*September 30, 2009*

**science**

could u unscramble this word?:irota

*September 28, 2009*

**geometry**

the triangular playground has angles whose measures are in the ration 5 : 6 : 4 what is the measure of the smallest angle?

*September 26, 2009*

**Science**

-sara-

*September 23, 2009*

**Science**

yah that's what I meant, thanks

*September 23, 2009*

**Math**

$26-$5 = $21 so the you do 21/3 and you get $7

*September 23, 2009*

**Algebra 1**

Thanks:)

*September 21, 2009*

**Algebra 1**

You are 36 miles from a friend. You both start riding your bicycles tword each other at the same time. You travel 15 mph and your friend travels 3 mph slower. How far will you travel before you meet your friend? I got 19.9 miles but I don't think it's right. Can you ...

*September 21, 2009*

**government**

What role should America’s ideals play in its national security policy? Include historical, current, and hypothetical cases in the analysis

*September 21, 2009*

**Science**

Thanks so much!

*September 16, 2009*

**Science**

What is the difference between a habitat and a niche? I understand it a little bit but need some more help ~THanks~

*September 16, 2009*

**Math**

A work crew of 3 people requires 3 weeks and 2 days to do a certain job. How long would it take a work crew of 4 people to do the same job if each person of both crews works at the same rate as each of the others? Note: each week contains six work days. Please help!! Thanks

*September 10, 2009*

**Math**

So, no part of the table is linear? I mean, the x=5, y=20; x=10, y=30; & x=15, y=40, none of those are linear either? Or is it because of the constant at the end that none of it is linear?

*September 8, 2009*

**Art**

Some people claim their tax dollars should not support art that they find offensive. Is that position different from those who object to tax dollars being spent on a military project they think is wasteful, or medical research that they find unethical?

*September 7, 2009*

**Art**

A polular Western myth portrays artists as completely asocial, isolated geniuses whose work is not recognized as important during their lifetimes. Do you think that the nonconformist (or even tragic) artist might fulfill an important role in a paticular society?

*September 7, 2009*

**social studies**

thank you

*September 7, 2009*