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March 1, 2015

March 1, 2015

Post a New Question | Current Questions

**7th grade**

how do you identify complements?
*Wednesday, October 22, 2008 at 8:58pm*

**4th grade**

25+7=p-6
*Wednesday, October 22, 2008 at 7:48pm*

**11th grade**

Mapp vs. Ohio?
*Tuesday, October 21, 2008 at 8:55pm*

**4th grade**

What is the plural of maestro?
*Monday, October 20, 2008 at 8:32pm*

**8th grade**

what is the national grange
*Monday, October 20, 2008 at 3:42pm*

**physics**

Two blocks, joined by a string, have masses of 6 and 9kg. They rest on frictionless horizontal surface. A 2nd string, attached only to the 9kg block, has a horizontal force = 30N applied to it. Both blocks accelerate. Find the tension in the string between the blocks.
*Sunday, October 19, 2008 at 4:41pm*

**8th grade**

what is x-y=6
*Friday, October 17, 2008 at 1:48am*

**8 th Grade**

what is a bear?
*Tuesday, October 14, 2008 at 4:59pm*

**accounting**

Victor has two employees who each get paid $150/day. December 31st is a Wednesday. These two employees will not be paid until Friday, January 2nd. How much do i debit to salary expense and how much do i credit to salary payable?
*Tuesday, October 14, 2008 at 4:42pm*

**6th grade**

3x times 9x =
*Monday, October 13, 2008 at 9:07pm*

**All!!**

What is the 8 grade meap on? Thanks!
*Monday, October 13, 2008 at 4:18pm*

**Physics**

The moon has a period of 27.3 days and a mean distance of 3.90 x 10^5 km from the center of Earth. a) Use Kepler's laws to find the period of a satellite in orbit 6.70 x 10^3 km from the center of Earth --- I was able to do this and the answer i got was: 88.6 mins, but was...
*Saturday, October 11, 2008 at 6:27pm*

**1st grade,Middle Sound**

Hello there, My daughter going to first grade and i have very hard time to understand the middle sound on a word. I'm from Greece original so is hard for me This is the only thing she can not understand and i cant help her. Any Ideas how i can learn about it?
*Thursday, October 9, 2008 at 9:35pm*

**9th grade**

acrostic poem on p h o t o s y n t h e s i s
*Wednesday, October 8, 2008 at 9:06pm*

**9th grade**

2x + 5 - 7x = 15
*Tuesday, October 7, 2008 at 9:39pm*

**math**

i kinda need help with these 2 please: assume (y) varies direcly as (x) if (x)=32 when (y)=6, what is the value of k? and (y) varies directly as (x) find the constant when (x)=0.5, and (y)=0.3 and can someone also explain what they mean by find the constant and how 2 do it in ...
*Tuesday, October 7, 2008 at 9:28pm*

**5th grade math**

how do you multiply 4 1/2 x 7/8
*Monday, October 6, 2008 at 6:06pm*

**11th grade physics**

bob where r u !!!
*Sunday, October 5, 2008 at 8:34pm*

**8th grade**

what is radiation
*Thursday, October 2, 2008 at 5:54pm*

**4th grade**

i indain posters !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
*Thursday, October 2, 2008 at 5:16pm*

**Math**

The word problem is: Nancy's quiz average is a 74. Her quiz average is 1/4 of her grade. The test average is 3/4 of the total grade. What test average does she need to get at least an 88? Would you be able to set up an equation, and explain how the answer was acheived? ...
*Wednesday, October 1, 2008 at 8:13pm*

**3rd grade**

WHAT ARE PARTIAL SUMS???
*Wednesday, October 1, 2008 at 5:00pm*

**fifth grade**

how many grams in a lb.
*Tuesday, September 30, 2008 at 6:14pm*

**6th grade**

euclidean algorithm
*Tuesday, September 30, 2008 at 9:29am*

**7th grade**

what is -2(-3) squared
*Monday, September 29, 2008 at 7:18pm*

**grade 8 math**

At the annual Grade 8 ski trip, for every 2 students who skied, 3 snowboarded. Ninety-six students snowboarded. How many students skied? Show your work. Can someone help???
*Sunday, September 28, 2008 at 7:49pm*

**Grade 3 (transporatation)**

I am doing a unit on public transportation in New York city for my 3rd grade class and I am having a little trouble finding interesting and fun websites that my students could use to get information on past and present types of public transportation. Do you know any website/s ...
*Saturday, September 27, 2008 at 8:33pm*

**physics**

when an object is dropped frome a hight of 20m above the surface of planet Z, it will fall 5m during the 2nd second of fall. What is the acceleration of a falling object near the surface of this planet?
*Friday, September 26, 2008 at 7:09pm*

**chemistry**

T1/2 depends inversely on k why ? T1/2 depends inversely on k and directly on the initial concentration of the reactants in question. What is the order? -is the order 0 or 2nd? I think it is 0 because the [] is on top opposed to 1/[]
*Thursday, September 25, 2008 at 2:26am*

**Ap Bio**

SAME LAb - Collect a sample of water below some riffles in stream. Stream runs into a lake. 2nd sample from lake. Which smaple would you expect to have the higher DO? Explain
*Tuesday, September 23, 2008 at 10:57pm*

**9th grade**

how does ozone form?
*Monday, September 22, 2008 at 6:24pm*

**10th grade**

15mm to dam
*Wednesday, September 17, 2008 at 1:08am*

**character traits (further questions)**

How can I explain the phrases: outer traits and inner traits to a group of 2nd graders? They are doing a character study and they need to focus on the inner and outer traits of the main character.
*Tuesday, September 16, 2008 at 11:03pm*

**7th grade**

what is another word for understand
*Tuesday, September 16, 2008 at 5:33pm*

**6th grade math**

What is 2 x (4 to the power of 2) - 12 + 5 ?
*Tuesday, September 16, 2008 at 2:15am*

**9th grade**

how earth rotates?
*Sunday, September 14, 2008 at 11:35am*

**5th grade**

how do you do a paragraph paw
*Thursday, September 11, 2008 at 11:01pm*

**math**

polk elementry school has three classes for each grade level, kindergarten through fifth grade. If there is an average of 27 students how many students attend polk elementry school?
*Wednesday, September 10, 2008 at 5:33pm*

**trig**

in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
*Monday, September 8, 2008 at 9:13pm*

**trig.**

in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
*Monday, September 8, 2008 at 8:24pm*

**6th grade**

What was a mansion like in the 80's
*Monday, September 8, 2008 at 7:43pm*

**6th grade math**

A+B = A-B what are A and b
*Sunday, September 7, 2008 at 10:20pm*

**5th grade**

how many thousandths are in a hundredth?
*Sunday, September 7, 2008 at 8:58pm*

**10th grade math**

3(x-2)= 4-(x-2)
*Saturday, September 6, 2008 at 11:58am*

**english**

i have to write a ballad. The 1st and 3rd lines need to be in iambic tetrameter and 2nd and 4th in iambic trimeter. is this right? Today I told my friend about The dream I had one night. “This red rose grew alone In a small lot without sunlight.”
*Thursday, September 4, 2008 at 10:41pm*

**11th grade**

what exactly is chemistry?
*Thursday, September 4, 2008 at 5:33pm*

**9th grade**

what is social health?
*Thursday, September 4, 2008 at 3:25pm*

**9th grade**

whatis 1=1
*Tuesday, September 2, 2008 at 3:10pm*

**4th grade**

what is 7 d in w
*Friday, August 29, 2008 at 10:42am*

**math grade 12**

solve for n if P(n,3)=2c(n,2), n{N
*Thursday, August 28, 2008 at 8:03pm*

**5th grade**

i need help with factors
*Tuesday, August 26, 2008 at 8:25pm*

**science**

1. A violin string is oscillating at a frequency of 880 Hz (1 Hz = 1 full cycle / second) in its 2nd harmonic. What wold be the frequency of the fundamental vibrational mode? 2. Describe how you would go about finding the frequency of an unmarked tuning fork using the ...
*Thursday, July 31, 2008 at 3:50pm*

**Help Help**

Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50 <= X and X < 70) output "your grade is" X output "you did OK" else if (70 <...
*Wednesday, June 11, 2008 at 4:54pm*

**programming**

Can You Please help me understand how to do this and what i have to do to solve the problem.... Please!! Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50...
*Wednesday, June 11, 2008 at 4:53pm*

**COLLEGE PHYSICS**

A rollercoaster car of mass 600.0 kg is moving 2.4m/s at the top of a peak that is 25m off the ground. The car moves down slope and up the next hill. Assume that it loses 20,000J of energy by the next time it gets to the top of the next peak due to friction forces. If the ...
*Saturday, May 31, 2008 at 7:06pm*

**Pre-Algebra**

A Jet airplane leaves an airport traveling at a steady rate of 600km/h. another jet leaves the same airport 3/4h later traveling at 800km/h in the same derection. how long will the 2nd jet take to overtake the first?
*Wednesday, May 21, 2008 at 8:45pm*

**peer reviewing essay**

Hi, I have two assignments I have to submit to my AP US History teacher for next year by June 2nd. The first part is to explain why I should be in the class in a one page essay with size 11 font and 1.5 spacing. Could someone please read through my essay and see if it's ok...
*Saturday, May 10, 2008 at 1:47pm*

**Math, derivatives**

f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x c) 2x + sin x d)2(x - sin2x) I got neither of these answers, since the 2nd part should be chain rule, right? f(x) = x² + 2Cos²x = x² + 2(Cos x)² then f '(x) = (2)(2)(cosx)(-sinx) ...
*Monday, May 5, 2008 at 8:19pm*

**grade 5 math**

the grade 5 class decided to collect cans of food to donate to the food bank .After the 1st week ,they had collected 8 cans . The next week they collected 11 more . By the 3 rd week they had 31 cans Following this pattern how long will it take for them to reach there goal of ...
*Sunday, May 4, 2008 at 9:47pm*

**English**

I am writing a story about a girl who is living a stable life that she has created for herself. However, her biological sends her a letter apologizing for putting her up for adoption and telling she wants to see her. She is very confused. My last paragraph states that she goes...
*Sunday, May 4, 2008 at 6:03pm*

**Physics**

4th order dark fringe and 2nd order bright fringe spaced 2.5 cm aparte appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the wavelegth ofincident light is 500nm? First I converted the numbers: x= .025m wavelength= 5x10^-7m L=1m d=? I ...
*Wednesday, April 30, 2008 at 4:30pm*

**French**

I'm wondering, is the first one right or is the 2nd one right? 1.) Tout le monde ne VA pas répondre corrier eléctronique 2.) Tout le monde ne VONT pas répondre corrier eléctronique Or is it something else? and im mostly wondering about the aller...
*Tuesday, April 22, 2008 at 11:06pm*

**Physics**

4th order dark fringe and 2nd order bright fring spaced 2.5cm apart appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the waveleght of incident light is 500nm? x=2.5cm=.025m L=1m wavelegth= 500nm = 5x10^-7m d=? x/L=wavelength/d d= (...
*Tuesday, April 22, 2008 at 10:58pm*

**6th Grade Math**

I really don't know what to do on this question. If someone could start me off I could probably get the answer. Remember I am in 6th grade. Dani has a sack of 50 pens. Of these, 10 are black, 15 are blue, and the rest are red. If she grabs a handful of 5 pens, how many ...
*Monday, April 21, 2008 at 7:19pm*

**Circuit Problem- Physics**

I am trying to do these 2 problems. I'm starting out with the RC Circuit (2nd one): h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png *delete spaces or link won't load! a) The capacitor acts as a bare wire with no resistance, so: I=V/R=V/(4/5R) b) ...
*Sunday, April 13, 2008 at 10:05am*

**Algebra**

I am having trouble with finding the 1st and 3rd quartiles of a set of data. For example, let's say the data is: 4, 9, 11, 16, and 24<- these are cumulative frequencies. The median (or 2nd percentile)is 11, right? My teacher says it's 12. Then for 3rd quartile I got...
*Thursday, April 3, 2008 at 8:52pm*

**Math**

A baseball diamond is a square with sides of 90 ft. long. a) to the nearest foot, what is the length of a throw from home to third base... b) what is the length of a throw from the shortstop position (midway between 2nd and 3rd) to 1st base
*Tuesday, April 1, 2008 at 3:58pm*

**Pre Cal(please show me the work)**

At the show a basketball card dealer tells you that a vintage card increases in value by a factor of 10 every 9 years.If the card is now worth $32, how long ago did she buy it?(Hint: Remember that the value is multiplied by 10 every 9 years, not every year.) 2nd Question ...
*Tuesday, March 18, 2008 at 3:42pm*

**linear algebra**

i'm not sure how to go about this one. any help would be appreciated! find all x's that would make the 2x2 matrix below = to a shear-dilation: 1st row: 1, x 2nd row: 3, 4
*Saturday, March 8, 2008 at 10:24pm*

**arithmetic**

Word Problem: A hospital needs to figure the annual budget for an 11 bed facility based on 90% occupancy using a 4 day length of stay. 1st day = $625.00, 2nd day - $315.00, 3rd day = $315.00 and 4th day = $220.00. How much money can they expect to make for an entire year?
*Wednesday, February 27, 2008 at 2:47pm*

**Math**

OOPS! Draw a pair of quads. where the angles of the 1st quad. are congruent to the angles of the 2nd quad. No side of one quad. is to be congruent to any side of the other quad. THIS is straight out of the workbook SORRY!
*Monday, February 25, 2008 at 4:46pm*

**Geometry**

Draw a pair of quadrilaterals where the 1st quad. is congruent to the 2nd quad. No side of one quad. is to be congruent to any other quad. Straight out of workbook! PLEASE HELP!!!!!!!!!!!!
*Monday, February 25, 2008 at 4:37pm*

**Math**

Draw a pair of quadrilaterals where the 1st quad. is congruent to the 2nd quad. No side of one quad. is to be congruent to any other quad Straight out of workbook! PLEASE HELP!!!!!!!!!!!!
*Monday, February 25, 2008 at 4:31pm*

**Intro to Probability, please check my work.**

A fair coin is flipped three times. You win $5 every time the outcome is heads. Let the random variable X represent the total number of dollars you win. (a) List the sample space. (b) Determine the probability function of X. ====================== Answer: a) 2^3= 8 ...
*Sunday, February 17, 2008 at 3:35pm*

**Social studies**

i need to make an essay about two stories 1st- the tell tale heart 2nd- the speckled band, sherlock holmes story the only problem is the essay needs to be about what they have in common and what differences they have and mix it into paragraphs any help?
*Monday, February 11, 2008 at 2:22pm*

**proofread**

Hi, can someone proofread this for me. I'll appreciate it. Thanks in advance. The practicum site I selected is an elementary school. I will be assisting a first grade teacher during the semester. I will be helping her with her students and with other teacher ...
*Sunday, February 3, 2008 at 11:34pm*

**Math**

Can i please get your help on fractions and i am in the 7 th grade
*Wednesday, January 30, 2008 at 5:49pm*

**Chem**

Consider the following reaction was found to be the 0th order to A and 2nd order to B. 2A(cr) + 3B(aq) -->A2B3(cr) Write a rate law equation for the reaction rate of A with B.
*Tuesday, January 29, 2008 at 10:57pm*

**7th grade geometry**

pr/ac = ?/cb pr=6,ac=?, cb=15
*Monday, January 28, 2008 at 6:52pm*

**Algebra**

Twenty-five percent of your budget will be used to rent business space and pay for utilities. Write an algebraic expression that indicates how much money will be spent on business space and utilities. 2nd question. .25($118,250.00) correct answer? .25($118,250.00)
*Tuesday, January 22, 2008 at 3:06pm*

**Physics Questions!**

An interference pattern is set up by two point sources of the same frequency, vibrating in phase with one another. A point on the second nodal line is 50.0 cm from one source and 59 cm from the other. The speed of the waves is 35 cm/s. Calculate the frequency of the sources. I...
*Saturday, December 15, 2007 at 12:11pm*

**college math**

13. (4 pts) At an annual flower show, 6 different entries are to be arranged in a row. a) How many different arrangements of the entries are possible? b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ...
*Wednesday, December 12, 2007 at 9:24pm*

**Grade 10 MATH**

17^115
*Wednesday, December 5, 2007 at 7:56pm*

**algebra 2**

consecutive odd integer problem find two odd integers the sum of whose squares is 130. (sq)=squared let x= 1st odd int let x+2=2nd odd int (2x+2)(2x+2)=130 4x(sq) + 4x+ 4x +4=130 4x(sq) + 8x -126= 0 2(2x(sq)+4x-63)=0 My question: the two numbers to factor the equation. pair of...
*Monday, December 3, 2007 at 7:13pm*

**algebra 2**

consecutive odd integer problem find two odd integers the sum of whose squares is 130. (sq)=squared let x= 1st odd int let x+2=2nd odd int (2x+2)(2x+2)=130 4x(sq) + 4x+ 4x +4=130 4x(sq) + 8x -126= 0 2(2x(sq)+4x-63)=0 My question: WHAT ARE THE TWO DARN #s!!!
*Monday, December 3, 2007 at 6:30pm*

**math 2nd question please help**

cos^2xcos^2y+sin^2xsin^2y+sin^2xcos^2y+sin^2ycos^2x = 1
*Thursday, November 29, 2007 at 9:06pm*

**math**

what are the 2 greatest consecutive even integers whose sum is less that 180? for the 1st I got x+2 and for the 2nd I got x+4 to get x+2+x+4<180, and solved to get, x<87. Now.. I cant get the answer. biggg problemo. please help.
*Wednesday, November 14, 2007 at 8:14pm*

**algebra- integer problems**

Hi! i have this problem, I'm stuck on. it says find 2 consecutive multiples of 9 whose sum is -153. I started of my saying the 1st number is 9x and the 2nd is 9x+9. I continued on to get, 9x+(9x+9)=-153 and solved it. I got an irrelevant answer: -9. I was wondering what I ...
*Wednesday, November 14, 2007 at 7:52pm*

**computers**

which set of terms below correctly pairs a generation of computers with key innovation associated with it? a. 2nd generation/ intergrated circuits b. 3rd generation/programming languages c. 4th generation/ operating systems d. 5th generation/artificial intelligence
*Monday, November 12, 2007 at 9:28pm*

**AP CHEMISTRY**

If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even asking :[?
*Wednesday, November 7, 2007 at 9:25pm*

**CHEMISTRY**

If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even asking :[?
*Wednesday, November 7, 2007 at 7:14pm*

**Math**

I need help with these questions: Copy the equations. Add brakcets to make each one true. a) 7 - 5 to the 4th power divided by 8 = 2 b) 3 x 2 - 5 to the 10 power = 1 c) 39 - 4 + 6 divided by 3 to the 2nd power = 3
*Monday, October 29, 2007 at 6:07pm*

**Word Processing**

I'm a GranMa in my 60's trying to learn Word/Windows. I started with the 2nd course and have had only this one problem in 3 weeks so that is good. I don't think the answer to my problem is in the book for THIS course. I can't figure out how to use the commands ...
*Thursday, October 11, 2007 at 9:10pm*

**Physics**

This problem concerns a student that is attempting Newton's 2nd Law, but the cart does not run without friction. How do I calculate the drag force, givin the mass of the cart (7.6kg), the mass of the load (4.2kg), and the resulting acceleration (1.2m/s2)? I'd ...
*Saturday, October 6, 2007 at 8:03am*

**math**

An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final average ...
*Sunday, September 30, 2007 at 8:08pm*

**Int Alegbra**

2nd question Flagpole is secured on opp. sides by 2 wires. each of which is 5 ft longer that the pole. Distance between the points where the wire are fixed = to the length of one wire. How tall us flagpole to nearest inch?
*Sunday, September 30, 2007 at 3:04pm*

**chemistry**

Why is it important that the sequence of addition of reagents be followed? What could possibly go wrong when this is not followed? Reagents added: 1st: Fe3+ solution 2nd: 2.00 mL 10% NH2OH-HCl (hydroxylamine hydrochloride) 3rd: excess 0.20% 1,10-phenanthroline 4th: 1.00 mL ...
*Saturday, September 15, 2007 at 4:41pm*

**chemistry**

Why is it important that the sequence of addition of reagents be followed? What could possibly go wrong when this is not followed? Reagents added: 1st: Fe3+ solution 2nd: 2.00 mL 10% NH2OH-HCl (hydroxylamine hydrochloride) 3rd: excess 0.20% 1,10-phenanthroline 4th: 1.00 mL ...
*Saturday, September 15, 2007 at 1:45pm*

**Math**

I am tring to finish my 10th grade. I got hurt last Jan. 2007. And was force to quit public school. In short of every. I started online schooling and I have to write an essay for a final grade in Math compare three college to each other and make a graph telling which school ...
*Thursday, September 13, 2007 at 9:54am*

**math**

Here it is: One night the palace was having a midnight snack. The king ate 1/6 of the mangoes. The Queen ate 1/5 of the remaining mangoes. The 1st prince ate 1/4 of the mangoes left. Then the 2nd prince ate 1/3 of the remaining mangoes. And the third prince ate 1/2 of the ...
*Wednesday, September 5, 2007 at 5:32pm*

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