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April 23, 2014

April 23, 2014

Post a New Question | Current Questions

**Math**

for 2nd equation, we get x = 2y-3 thus plugging into first equation gets (2y-3)^2+9y^2 = 37. 4y^2-12y+9+9y^2 = 13y^2-12y+9=37 = 13y^2-12y-28 = 0. Solving with the quadratic formula gives us: 2,-14/13
*Tuesday, December 11, 2012 at 11:20am*

**Math**

The slope of the first hill is 17/25. The slope of the 2nd hill is 0.7. Which slope is greater? This is the slope of the steeper hill.
*Sunday, December 9, 2012 at 6:45pm*

**7th grade math Ms. Sue please**

I'm from connections and in 7th grade ._.
*Sunday, December 9, 2012 at 5:18pm*

**Math**

A curve has equation y= 2 + x - x^2. Find coordinates of 3 unknown points on the line. 1st point is at negative x, y value. 2nd point is at x=0 and y is positive. 3rd value is at y=o and x is positive.
*Sunday, December 9, 2012 at 3:16pm*

**Physics**

The alcohol in the first arm floats on top of the denser glycerin and pressures it down distance h from the initial level. As a result, the glycerin rises by the distance h in the second arm. Due to the equilibrium condition, the point of the two liquids contact in the 1st arm...
*Saturday, December 8, 2012 at 5:13am*

**Math challenge **

There are 3 circles divided into thirds with a number in each third. The 1st cirlcle has 18, 23 & 49. 2nd cirlce has 25, 62, 38. The 3rd cirlce has ?, 17 & 39. We need to figure out what number is missing from the 3rd circle, and how you figured it out.
*Thursday, December 6, 2012 at 7:55pm*

**math**

student got 25 questions correct did not pass,2nd attempt got 36 correct what was percent increase show how solved
*Wednesday, December 5, 2012 at 9:51pm*

**Math**

Please help! How do I find the mean weight of 2 groups of 100 kids... 1st grp mean weight is 55.7lbs and 2nd grp mean weight is 42.6lbs.
*Wednesday, December 5, 2012 at 6:33pm*

**graphing question**

the line with slope m passing through (h,k) is y-k = m(x-h) so, for the 2nd line, you have y-3 = 4(x-1) for the first one, find the slope and then you can apply this method.
*Wednesday, December 5, 2012 at 11:31am*

**Math**

Can someone help me to get d formular of this game?Megasena brazil.1st wk,5,19,32,41,49,58.2nd wk,6,13,24,32,40,51 and third wk,1,19,28,33,39,41.thanks.
*Wednesday, December 5, 2012 at 11:26am*

**Math 8R - HW Qs. Check**

Write the product of (1.7 x 10 to the 9th power) x (1.4 x 10 to the 2nd power) in scientific notation My Answer - 2.38 x 10 to the 11th power am i correct and please reply this post
*Sunday, December 2, 2012 at 4:51pm*

**Computer Science (Programming Logic And Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:18pm*

**Computer Science (Programming Logic And Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:18pm*

**Programming (CSI 150 Programming Logic and Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:14pm*

**math**

Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 75, 80, and 74. To get an B in the course, you must have an average of at ...
*Sunday, December 2, 2012 at 2:11pm*

**Programming (CSI Programming Logic and Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:10pm*

**5th math**

1: 2 2: 5 3: 3 4: 5 5: 4 6: 5 You'll notice that all the even numbered terms in the sequence(2nd term, 4th term, 6th term, etc.) are 5 The odd numbered terms in the sequence each increase by 1. So the next three terms should be 5, 5, 6
*Thursday, November 29, 2012 at 1:47pm*

**Algebra**

cost of lodging ---x cost of golf ------ y 4x + 3y = 443.50 7x + 5y = 765.5 1st times 5 --> 20x + 15y = 2217.5 2nd times 3 --> 21x + 15y = 2296.5 subtract them x = 79 back in #1 etc
*Wednesday, November 28, 2012 at 10:08pm*

**4th grade**

what grade are all of you in like high school or collage you know i never got math intil now . do any of you like math?
*Wednesday, November 28, 2012 at 5:46pm*

**calculus**

A multistoried building has a floor area of 2,000 square feet on the ground floor, 1,995 square feet on the 1st floor, 1,990 square feet on the 2nd floor, and so on. If the areas of the higher floors follow this sequence, what is the expression to calculate the area of the nth...
*Tuesday, November 27, 2012 at 11:14am*

**math help please**

1st equation: y = (-1/4)x + 10 -----> slope = -1/4 2nd equation: -2x + 8y = 6 8y = 2x + 6 y = (2/8)x + 6/8 y = (1/4)x + 2/3 ----> slope = 1/4 so the lines are neither parallel , nor perpendicular.
*Friday, November 23, 2012 at 11:03pm*

**math help please**

slope of first line = -1/5 slope of 2nd line = -7/8 slope of 3rd line = +32/28 = -8/7 mmmh, so using what you learned about slopes , what do you think? Hint: you are wrong.
*Friday, November 23, 2012 at 7:02pm*

**probabilities**

He could get it on the first draw or the 2nd draw or the 3rd draw or the 4th draw or the 5th draw or the 6th draw --- , at this point he must have picked it = 2/6 + (4/6)(2/5) + (4/6)(3/5)(2/4) + (4/6)(3/5)(2/4)(2/3) + (4/6)(3/5)(2/4)(1/3)(2/2) + 0 = 1/3 + 4/15 + 1/5 + 2/15 + ...
*Tuesday, November 20, 2012 at 8:00am*

**computing extrapolation**

Derive the central difference approximation for f''(x) accurate to O(h^4) by applying Richardson extrapolation to the central difference approximation of O(h^2). where f'' = 2nd derivative of x
*Saturday, November 17, 2012 at 4:27pm*

**HELP !!! Algebra 2**

Try substituting those values, and you will see they do not fit either equation. looking at the 2nd equation, y = x+2, so x+2 = x^2+5x-3 x^2 + 4x - 5 = 0 (x+5)(x-1) = 0 x = -5 or 1 so, y = -3 or 3 the solutions are thus (-5,-3)(1,3)
*Friday, November 16, 2012 at 2:34pm*

**Algebra 2**

#12 just plug in the numbers x = (6±√(36+160))/8 = (6±14)/8 = 6/8 + 14/8 or 6/8 - 14/8 = 5/2 or -1 #13 √-16 = √(16 * -1) = √16√-1 = 4i #14 since i*i = -1, 1/i = -i (-5+i)/2i = -5/2i + i/2i = 5/2 i + 1/2 or, in standard form, 1/2 + 5/...
*Friday, November 16, 2012 at 2:32pm*

**French**

Were you given a list of words to use? The first blank is probably an adjective which is feminine and singular to match "la carte." To me the "à italien" makes no sense, whereas "à l'italien" would. It looks like the 2nd blank is...
*Tuesday, November 13, 2012 at 7:58pm*

**computing/maths **

Derive the central difference approximation for f′′(x) accurate to O(h4) by applying Richardson extrapolation to the central difference approximation of O(h2). (Note that f''(x)= 2nd derivative of x)
*Sunday, November 11, 2012 at 8:27am*

**Math - average grade**

I have a 90 average i just got a 50 on my mid-term what is my grade average?
*Saturday, November 10, 2012 at 11:38am*

**math**

by "work out" do you mean solve ? double the second and add to the first 5x-2y=4 6x+2y=18 11x = 22 x = 2 sub into original 2nd 3(2) + y = 9 y = 9-6 y = 3
*Thursday, November 8, 2012 at 11:00pm*

**Math**

since there is no restriction on the first card, p(pair) = p(2nd card is same value as 1st card) p(pair) = 1 * 3/51 = 1/17 p(no pair) = 16/17
*Thursday, November 8, 2012 at 2:13pm*

**Math-approximation with fractions:7th grade math**

yeah this is sooooo hard, does anyone understand? I got to do this for problems 14.-19. Its 7th grade math work page 4.5 Anyone got the same?
*Tuesday, November 6, 2012 at 1:00pm*

**High school**

are you solving the 2 equations 2x-2y = 4 3x+4y = 6 ??? double the 1st, then add it to the 2nd 4x-4y=8 3x+4y=6 7x = 14 x = 2 into the 1st: 4 - 2y = 4 -2y = 0 y = 0 x=2 , y = 0
*Tuesday, November 6, 2012 at 8:19am*

**physics**

If polarized light of intensity I₀ is incident on a polarizing sheet, the intensity transmitted by the sheet depends on the angle between the polarization direction of the light and the transmission axis of the sheet, φ, via I= I₀•cos²φ. After ...
*Monday, November 5, 2012 at 5:28pm*

**phisics**

m=7,45 g, m1=1220 g, m2=1603 g, v=348 m/s, v1 = 0.648 m/s The law of conservation of linear momentum for the 1st collision m•v+0=m1•v1+m•u u=(m•v-m1•v1)/m = v –(m1/m)v1= 348 – (1220/7.45) •0.648 = 241.9 m/s, The law of conservation of ...
*Monday, November 5, 2012 at 12:28pm*

**Physics**

m=7,45 g, m1=1220 g, m2=1603 g, v=348 m/s, v1 = 0.648 m/s The law of conservation of linear momentum for the 1st collision m•v+0=m1•v1+m•u u=(m•v-m1•v1)/m = v –(m1/m)v1= 348 – (1220/7.45) •0.648 = 241.9 m/s, The law of conservation of ...
*Monday, November 5, 2012 at 12:20pm*

**Maths**

X = 1st no. 5x/8 =2nd no. X + 5x/8 = 195. Multiply both sides by 8 and solve for x. Then multiply 5/8 by The value of x.
*Sunday, November 4, 2012 at 7:18pm*

**Maths**

Find three no. Such that,the 2nd is twice the 1st,the 3rd is three times the first and their sum is 180. Ans is 30,60,90
*Friday, November 2, 2012 at 10:02pm*

**alegbra 1**

from the 2nd: x-3y = 7 --> x = 3y+7 sub into the first 2x + 5y = 3 2(3y+7) + 5y = 3 6y + 14 + 5y = 3 11y = -11 y = -1 sub that into x = 3y+7 = -3+7 = 4 x = 4 , y = -1
*Wednesday, October 31, 2012 at 4:09pm*

**Math**

use your calculator to find that arctan(3) = 1.249 But, we have tan = -3, which is in the 2nd and 4th quadrants pi-1.249 = 1.89 2pi-1.249 = 5.03
*Tuesday, October 30, 2012 at 8:21pm*

**math**

12 pounds of A grade coffee and 8 pounds of B grade coffee.
*Tuesday, October 30, 2012 at 9:47am*

**calc**

first one: remember that √x = x^(1/2) f ' (x) = 1/(√x + 1) ( (1/2)x^(-1/2) = 1/( 2x^(1/2) (√x)(√x + 1) = 1/( 2√x(√x + 1) or 1/(2(x+√x) 2nd: not clear if you meant ln( x + 1/x - 1) --- the way you typed it , or ln( (x+1)/(x-1...
*Tuesday, October 30, 2012 at 9:31am*

**Math 8R: Homework Check - Part 3 **

Part 3 : Evaluate when x = -2, y = 5 21. 4x + 2y, Answer: 2 22. 3(x) *to the 3rd power*, Answer: -221 23. (x + y) *to the 2nd power*, Answer: 9 24. -4x + 2y, Answer: 18 Please check to see if my answers are correct. Thank You!!! :)
*Monday, October 29, 2012 at 2:31pm*

**algebra**

use substitution ... 1st into the 2nd: 4(2y-8) + 3y = 23 8y - 32 + 3y = 23 11y = 55 y = 5 back into the 1st x = 10-8 = 2 x=2 , y = 5
*Monday, October 29, 2012 at 9:05am*

**calculus**

let y = (x+5)/(3x-4) First step in finding the inverse is to interchange the x and y variables , so ... inverse is: x = (y+5)/(3y-4) 2nd step: solve this new equation for y cross-multiply 3xy - 4x = y+5 3xy -y = 4x+5 y(3x-1) = 4x+5 y = (4x+5)/(3x-1) f^-1 (x) = (4x+5)/(3x-1) , ...
*Saturday, October 27, 2012 at 8:21am*

**5th grade math word problems**

Frank saved 50% by purchasing his airline ticket early. His wife paid full price. If their total was $294 how much was Franks's ticket only? Can someone please explain this to me in 5th grade terms.
*Wednesday, October 24, 2012 at 2:40pm*

**SS8R - (2nd question) help!**

Yes, Standard Oil definitely counts. I think Standard Oil was the only company he controlled.
*Tuesday, October 23, 2012 at 9:41pm*

**SS8R - (2nd question) help!**

business rockefeller control???????? i only thing I know is that he formed a Standard Oil Company.... does that count is there any other business he control (looked up on wiki, not there...)
*Tuesday, October 23, 2012 at 9:25pm*

**Social Studies 8R (2nd question)**

Thank You! :) Another question asked me what would I lable Vanderbilt either a Robber Barons or Captains of Industry. I'm picking Captains of Industry and write the same answer.
*Tuesday, October 23, 2012 at 9:05pm*

**Social Studies 8R (2nd question) **

Why do some call him a Capatain of Industry? Now for this question I know why, is because since he a industrialist, he controlled many railroads. He was on of the richest man in america. right????
*Tuesday, October 23, 2012 at 8:58pm*

**Math**

4 choices for the first digit, leaving 3 choices for the 2nd digit. What is 4 x 3 ? You might try listing all the possible cases, there are only 12 of them
*Tuesday, October 23, 2012 at 8:56pm*

**Social Studies 8 - help!!!!! (2nd question)**

That's about all I found, too, except for the Vanderbilt Museum. http://www.vanderbiltmuseum.org/
*Monday, October 22, 2012 at 8:59pm*

**Social Studies 8 - help!!!!! (2nd question)**

What organizations or buildings named after cornelius vanderbilt? So far I only got Vanderbily University is there anything else????? I google it and that's all it gave me please help me!!!!!
*Monday, October 22, 2012 at 8:42pm*

**Health 8 (2nd question)**

I think you should add more information. http://faculty.washington.edu/chudler/alco.html
*Monday, October 22, 2012 at 7:46pm*

**Health 8 (2nd question)**

Describe the effects of alcohol Answer - There were 283 deaths recorded as alcohol-related and could cause blackouts, memory loss and anxiety. Am I correct and is my answer is good????
*Monday, October 22, 2012 at 7:39pm*

**7th grade math Ms.Sue please**

I'm sorry, Delilah, but I didn't learn this when I was in 7th grade over 60 years ago. And I didn't take enough math after that to learn graphing.
*Sunday, October 21, 2012 at 6:33pm*

**Math Statistics**

The table below shows Rico’s grades during the third term in four subjects. Subject Units Grade Math 1.5 98 Science 2 97 English 1.5 95 A.P. 1 99 What was Rico’s average grade in the four subjects?
*Friday, October 19, 2012 at 11:30pm*

**Math Grade 5**

real easy with algebra .... 55+x = 4(7+x) 55+ x = 28 + 4x 27 = 3x x = 9 but grade 5 ???? make two colums of their ages, going up one at a time, until the first is 4 times the second 55 7 56 8 57 9 58 10 59 11 60 12 61 13 62 14 63 15 64 16 ---- ah, 64 = 4(16) ---> 55+9 = 4(7+9)
*Friday, October 19, 2012 at 9:24am*

**Statistic**

Number of Absences Final Grade 0 93 1 93 2 77 3 68 4 65 5 54 - Find the correlation coefficient for the data. I got this part of my answer. I believe the answer to be -0.9767 I am just going crazy with the second part. - Find the equation for the regression line for the data, ...
*Thursday, October 18, 2012 at 9:18pm*

**algebra**

how do I evaluate 2x to the 4th power + 2 x to the 3rd power + x to the 2nd power when x + 7
*Thursday, October 18, 2012 at 8:19pm*

**Algebra Grade 7**

I am trying to think how I would have done this in grade 7. I assume you have not had permutations, combinations and factorials. make a table of combinations first person shakes hands with 9 --> 9 projects second with 8 --> 8 more third with 7 --> 7 more etc 9+8+7+6+5...
*Thursday, October 18, 2012 at 5:06am*

**Algebra Grade 7**

Grade 7 ????
*Thursday, October 18, 2012 at 5:02am*

**math 6**

1st week : 4 2nd week : 4 x 4 = 16 3rd week: 16 x 4 = 64 4th week: 64 x 4 = 256
*Wednesday, October 17, 2012 at 12:51pm*

**math**

The principal is choosing between 2 field tripS. The firt costs 600 dollars. The 2nd costs $240 plus $40 per students. For wat # of students is the 1trip less expensive?
*Tuesday, October 16, 2012 at 10:18pm*

**math**

Are solving ? 1st times 4 ----> 8x + 20y = 40 2nd times 5 ---> -35x - 20y = 80 add them -27x = 120 x = -40/9 into the 1st: -80/9 + 5y = 10 -80 + 45y = 90 45y =170 y = 34/9
*Tuesday, October 16, 2012 at 9:11am*

**English ms. sue**

ms. sue for the book catcher in the rye i am being ackley describing holden, and i choose the 2nd incident when holden goes to ackleys room that one night after getting socked from stradlater. i not know what be a good title for this creative writing thing?
*Sunday, October 14, 2012 at 5:54pm*

**Math**

2nd: 2y + 6a - 4x = 0 you want to "isolate" the y, so everybody else to the other side 2y = 4x - 6a divide each term by 2 , (you only divided one term and not the others) y = 2x - 3a the 1st: y - 5 = (1/3)(x-9) y = (1/3)x - 3 + 5 y = (1/3)x + 2
*Thursday, October 11, 2012 at 9:35pm*

**Algebra**

sub the 2nd into the 1st 2n - 11 = m/4 2(m/-3) - 11 = m/4 multiply each term by 12 -8m - 132 = 3m -11m = 132 m = -12 then n = (-12) / -3 = 4
*Thursday, October 11, 2012 at 8:42am*

**c++**

Your Mathematic school teacher want to use a program that can read the name and the mark of a student. Your teacher want the program to automatically find the grade of the mark and display the result(name, mark and grade). Help your teacher to develop a program that can solve ...
*Thursday, October 11, 2012 at 5:16am*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
*Wednesday, October 10, 2012 at 10:42pm*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.
*Wednesday, October 10, 2012 at 12:15am*

**7th Grade x y input output tables**

i need help with x and y input output tables for 7th grade i dont understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!
*Tuesday, October 9, 2012 at 7:14pm*

**Math**

e^((5x^2)+(3x)-(7)) d/dx(e^u) = e^u du/dx = (10x+3) e^(5x^2 + 3x - 7) why would you even consider the 2nd choice?
*Monday, October 8, 2012 at 4:55pm*

**pre calculus**

I would use substitution to start: from the 3rd: z = 13y + 2 into the 1st: 3x - 10y + 13y + 2 = 5 3x + 3y = 3 x+y=1 into the 2nd: -4x + 9y - 13y - 2 = -6 -4x - 4y = -4 x + y = 1 Ahhh, x+y = 1 and x+y = 1 don't have a real solution. So the system has no unique solution. ...
*Sunday, October 7, 2012 at 7:53pm*

**algebra 2**

i'm trying to solve this system of equations with 3 variables 5a-b+3c=5 2a+7b-2c=5 4a-5b-7c=-65 i tried to make the first equation like a=something so i could substitute it in to the 2nd equation, however i get decimals so it doesnt work how do i do this problem?
*Sunday, October 7, 2012 at 1:29pm*

**college algebra**

5. Amand Heinl, an IRS auditor, took 45 minutes to process her first tax return. The IRS uses an 85% learning curve. C. 2nd return take D. 4th return take E. 8th return take
*Sunday, October 7, 2012 at 7:33am*

**English**

I'm a 7 Letter Words, You Read me daily, My 5, 6, 7th Letter increases every Year. 3rd and 4th Letter are the Same. My 3rd, 2nd and 5th Letter Covers 75% of the World. What am i?.
*Saturday, October 6, 2012 at 4:03am*

**7th grade math Ms.Sue please**

Even when I occasionally taught a section of 7th grade math over 20 years ago, irrational and real numbers were not part of our curriculum.
*Friday, October 5, 2012 at 7:45pm*

**statistics**

You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
*Thursday, October 4, 2012 at 11:05am*

**Math**

Ohk so it will be - 1st glove - 20 2nd glove - 18/19 3rd glove - 17/18 4th glove - 16/17 5th glove - 15/16 Total probability = 1 - the probability of above things right ??
*Wednesday, October 3, 2012 at 9:44pm*

**Biology**

It's not the 3rd option, because the stem stores water Roots do not contatin stomata I beleive it would be either of the first two; my guess would be the 2nd
*Wednesday, October 3, 2012 at 7:20am*

**3rd Grade Math**

Ahhh, this would be so easy with algebra as was shown by Ms Sue and Shelley, but I guess we can't use algebra for a grade 3 How about making two columns where the two numbers add up to 25 until we see a difference of 9 e.g. 10 15 ----> difference is 5 9 16 ----> ...
*Tuesday, October 2, 2012 at 6:08pm*

**Trigonometry**

First: So the angle is in quadrant III tan x = -12/-5 = 12/5, so cot x = 5/12 2nd: point is (-1,√3) which is in quad II you have a right-angled triangle with sides 1, √3, and 2 ( the famous 30-60-90 triangle) cos x = -1/2 sec x = -2
*Tuesday, October 2, 2012 at 5:59pm*

**math**

there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem
*Monday, October 1, 2012 at 8:52pm*

**MATH**

tHERE ARE 4 FIFTH GRADE CLASSES IN A SCHOOL. EACH CLASS Has 24 STUDENTS. fOR EACH GYM PERIOD, TWO FIFTH GRADE CLASSES TAKE GYM TOGETHER. tHERE ARE 10 GYM PERIODS IN ALL DURING SCHOOL WEEK. wHAT INFORMATION IS NOR NEEDED TO FIGURE OUT HOW MANY TOTAL STUDENTS TAKE A GYM PERIOD ...
*Monday, October 1, 2012 at 8:01pm*

**phycology**

Depends on how you define young, middle. Abstract reasoning seldom occurs before age 7, and even then, just in a few. My own experience is that one sees the change between 8th grade and 10th grade, and by the 11th grade teaching physics is possible. Piaget developed his ideas ...
*Thursday, September 27, 2012 at 6:11pm*

**Physics**

A) Gravity pulls an area of wet soil and rock downward in a landslide B) An ... Many people know that the weight of an object varies on different planets, but did ... If the Earth's gravitational force causes a falling 74 kg student to accelerate .... the acceleration of ...
*Sunday, September 23, 2012 at 1:00pm*

**English**

Is the 2nd one hypocrite. If it is I have 4 more words left which are constrain manipulate ruffle stamina Which one goes best for the last one You and Lucy will never settle your quarrel unless _____ each other directly and listen to what the other person has to say
*Wednesday, September 19, 2012 at 9:13pm*

**math,social studies and heaalth**

I am in middle school and I want to know what my grade point average is. Do you know any websites where I can calculate my grade point average. Thanks.
*Wednesday, September 19, 2012 at 3:53pm*

**Chemistry- rate laws**

CH3CHO decomposes into methane gas and carbon monoxide gas. This is a 2nd order reaction. Rate of decomposition at 140 degrees Celsius is .10M/s when the concentration of CH3CHO is .010. What is the rate of the reaction when the concentration of CH3CHO is .50M? Have not been ...
*Tuesday, September 18, 2012 at 10:18am*

**6th grade math**

Yes I am not smarter than a 6th grader. How do I show the math and in the simplest form for the following: A sixth grade class has 100 sheets of lightweight paper. They use 3/4 of the paper for a collection of class poems. What is the total thickness of the paper they use?
*Monday, September 17, 2012 at 7:27pm*

**Calculus -- OOPS!**

I mixed up x and y in the 1st one! x^2+y^2 = 12y x^2 - 12y + y^2 = 0 x^2 + (y-6)^2 = 36 Also, the 2nd one could just as well have been written r = 14cosθ. It would just draw the circle from the left, rather than from the right.
*Monday, September 17, 2012 at 4:09pm*

**physics**

A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, what is the distance traveled by the car before it comes to rest?
*Sunday, September 16, 2012 at 5:06pm*

**7th grade science**

I did my calculations wrong and now Im going to get a bad, bad, bad grade on my lab report I need to know what how to find the highth and width and radius of several things are help me plz!!!!
*Saturday, September 15, 2012 at 5:33pm*

**math**

a(1-r^4)/(1-r) = 15/32 a/(1-r) = 1/3 divide the 1st by the 2nd 1-r^4 = 45/32 r^4 = 1-45/32 = -13/32 no real solution for r, since we can't take an even root of a negative check your typing.
*Saturday, September 15, 2012 at 10:26am*

**college algebra**

I would go for the y's 3 times the first added to the 2nd ---> 4 times the first added to the 3rd ----> you now have two equations with only x and z try to finish it.
*Thursday, September 13, 2012 at 7:54pm*

**college algebra**

add the last two: 4x + 6y = -4 from the 1st: y = -2-2x sub into above new equation: 4x + 6(-2-2x) = -4 4x - 12 - 12x = -4 -8x = 8 x = -1 then y = -2+2 = 0 in the 2nd: x+y-z=-4 -1+0-z=-4 -z=-3 z=3 x=-1 y=0 z=3
*Thursday, September 13, 2012 at 7:43pm*

**math**

Decimals are hard....... that is the answer to a math paper splitting the letters into 3 words. First word is 8 letters, 2nd is 3 and the 3rd is 4.
*Tuesday, September 11, 2012 at 9:32pm*

**Legally Drunk?**

I put this into www.google.com and it was the 2nd link down: blood alcohol level drunk Yes, I'm sure there are some differences based on where you live and that's for Google's advertising purposes! But this is such a basic website, I think it would show up on all ...
*Monday, September 10, 2012 at 11:47am*

**STATISTICS**

"a grade less than 58 and greater thAN 110 " No student will receive this grade! Seriously, you probably mean "a grade less than 58 or greater thAN 110 " What can be done is to calculate the percentage of students who receive X, where 58≤X≤110. Given...
*Monday, September 10, 2012 at 8:36am*

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