Wednesday

September 17, 2014

September 17, 2014

Number of results: 93,448

**Math 116 algebra please check**

Solve using the multiplication principle. 10x= -90 The solution is x = -9 please check
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve for the indicated letter. e=9f, for f The solution is f = 1/9e Please check this
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve by elimination method 2x + 3y =1 4x + 6y =2 What is the solution of the system N there is no solution
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve the following systems of equations x + 6y = (1) x+ 9 - 6y (2) What is the solution of the system? I get N for no solution
*July 16, 2008 by jay jay*

**Algebra**

√(y+4)-4=1 Y = or no solution I keep coming back to no solution but am wondering if I am confusing myself Please check Thank you
*June 19, 2011 by Sam*

**Algebra II-Please check my solution**

Solve by elimination method-thanks fro checking my work 2x + 3y= 2 multiply this equation by 2= 4x + 6y = 4 4x-2y = -28 4x + 6y = 4 -4x -2y = -28 8y = 32 y = 4 2x + 3(4) = 2 2x + 12 = 2 2x + 2-12 2x = -10 x = -5 solution = (-5,4)
*February 16, 2011 by Joella*

**Algebra-Please check my calculations**

Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x = 0 x-8 =0 x=8 the ...
*October 19, 2010 by JayLynne-I had misprint in previous posting*

**chemistry(Please Check)**

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. mL solution. What is the molarity of this solution ?Answer: 0.0262 Please Check my answer
*April 23, 2012 by Wurola*

**Math 116 algebra please check**

Solve the following system of equations x + 6y =4(1) x = 9-6y (2) What is the solution of the system N There is no solution
*July 16, 2008 by jay jay*

**science**

Please check my work 3M solution of NaOH (1 liter worth) molecular weight: 39.99 3 x 39.99= 119.97 grams dilute to 1000mL 3 M solution of HCl (1 L) c1v1=c2v2 (12M)(?)= (3M)(1000mL) ?= 250 mL please check thank you
*October 13, 2008 by ag*

**Math 116 algebra please check**

Solve -0.8x < -56 The solution is x<70
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve 8x - (5x + 7)= 17 The solution is x= 8
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve 5/2x + 1/4x = 9/4 + x The solution is x 9/10
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve -8¡Ü4x-7¡Ü-2 The solution is -1/4,5/4
*July 16, 2008 by jay jay*

**Algebra 2**

Absolute Value Equations Will someone please check to see if I am doing this correct? 1.|7x+2|=10 x= (8/7) or (-12/7) 2.|3x-5|=-1 I got "no solution" because "d" cannot be negative. 3.|x^2-2x-16|=8 x= 6,-4 or x=4,-2 4.|3x-2|=7 x= 3 or (-5/3) 5.|x^2+2x+1|=-4 I got "no solution...
*September 19, 2012 by Caroline*

**Math 116 algebra**

Please check this problem Solve 5/2x + 1/4 x = 9/4 + x The solution is x = 9/10 Is this correct.
*July 16, 2008 by jay jay*

**Algebra-please check**

What is the solution for absolute value of -1 + x = 5 I think the two solutions are x = 6 and x = (-4)
*October 6, 2010 by Tanya*

**Math 116 algebra please check**

Solve by the substitution method 3x + 7y =15 x=16-6y What is the solution of the system (-2,3)
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve using the multiplication principle -4x > 1/11 The solution is x<-1/44
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

Solve by the elimination method 3r-7s=-28 7r+3s=70 What is the solution of the system r=7 and s=7
*July 16, 2008 by jay jay*

**Math 116 algebra please check**

solve using the multiplication principle. -5/6x = -7/8 Th solution is x=21/20
*July 16, 2008 by jay jay*

**algebra**

can someone check my answer please? Solve for indicated letter. b=8c ,for c the solution is c=b/8 ? is this correct?
*September 26, 2009 by Anonymous*

**Math 116 algebra please check**

Solve using the multiplication principle. -4x > 1/11 The solution is x > -1/44 Is this correct
*July 16, 2008 by jay jay*

**algebra**

can someone please check my answer to this problem? solve for indicated letter. n=m+d, for m the solution is m= (n+d)/m is this correct?
*September 26, 2009 by Anonymous*

**Algebra**

Could someone please help me with this problem? Solve using the multiplication principle. Don't forget to check. -z=35. The solution is z=
*February 22, 2010 by B.B.*

**Math 116 algebra please check**

Solve using the addition and multiplication principles 5 + 6x < 53 The solution set is < 8
*July 16, 2008 by jay jay*

**Math-Algebra-Please check**

What is the solution of 3 times the absolute value of x + 5 <= 6 I think the answer is x <= - 3 and x >= -7 If I'm not right, could you tell me why?
*October 6, 2010 by Tanya*

**Algebra-please check**

Could someone please check my solution-Thank you-DRWLS helped me set it up and I solved it, I think From the top of a mountain 150 feet high, Jessie stands at the safety rail on the edge and looks below. The angle of elevation from his bike on the ground to Jessie is 38 ...
*January 7, 2011 by Joseph*

**Math- Algebra II**

Please check if I did this right... √(2x+1)+7= 3 -7 -7 √(2x+1)= -4 Square everything √(2x+1)^2= -4^2 2x+1=16 -1 -1 2x=15 divide by 2 on both sides x=7.5 CHECK: (Plug it in) √(2(7.5)+1)+7= 3 √(16)+7= 3 4+7=3 11 doesn't equal 3 so the answer is no ...
*February 16, 2011 by Lala*

**Chemistry(Please check)**

1) The Ka for acetic acid is 1.8e-5. What is the pH of a 3.18M solution of this acid? I did 1.8e-5 = x^2/3.18 x=sqrt 1.8e-5 X 3.18 = 7.56e-3 pH=-log(7.56e-3) = 2.12 The pH is 2.12 2) At 25 degrees celsius, the pH of a 1.75M NaCN solution (the Ka for HCN is 4.0e-10) is ? 4.0e-...
*April 2, 2012 by Hannah*

**Algebra 1A**

I am so lost! Solve the equation and check the solution -6(t-2)-(t+3)=2 The solution to t is ??
*September 23, 2012 by Austin*

**Math 116 algebra please check**

Solve 0.3x + 8 < 1.1x-9 The solution is x > 85/7 The problem with the greater than sign has a line under it but I can get it to work correctly from my word document
*July 16, 2008 by jay jay*

**Pre-Algebra(please check)**

Please check these simplified expressions(my answer is after the ;) 4(2k-6)-8(3-3k); -16k-(-48) 9+(-2k)+(-4)-6k; -8k+5 -x+4x-(-8x)-9+2x+1; 13x+(-8) 5(-3x+6)+8x; -7x+30 8+6x+4-8x; -2x+12 5(-m-3)+4m-10; -9m+5
*May 18, 2008 by Jillian*

**Algebra**

Solve the equation and check the solution: -4(t+7)-(t+6)=10 the solution t is:
*May 16, 2012 by Angela*

**Algebra**

Please check and see if my answer are correct 1). 24v^2w^5x^8-20v^7w^9= -4v^2w^5(5v^5w^4-6x^8) 2). 81-25z^2= (5z+9)(9-5z) 3). 5y^3-7y^2-15y+21=(y^2-3)(5y-7) 4). x^2+4x-12= (x+6)(x-2) 5). 3x^2-26x+16= (x-8)(3x-2) 6).4v^6+6v^5-18v^4= 2v^4(2v-3)(v+3) 7). solve for y y^2+6y+8=0 y...
*August 11, 2014 by Mari*

**Please check-Reiny**

Could you check these two problems? 3sqrt (y+2) = 3 is y = 25 Answers were: true or false I said true because I did it like this Square both sides=y + 2 = 3^3 y+2 = 27 y = 25 and sqrt (2y-6) = 3-y for y answes are: no solution 5 3,5 3 I said 3 because I did it like this: 8y -...
*October 12, 2010 by Michelle*

**algebra**

solve system graphically. be sure to check your solution. if a system has infinite number of solutions, use set builder notation to write the solution det. if a system as no solution, state this. a=1+b b=5-2a
*June 29, 2011 by Anonymous*

**Math 116 algebra please check**

Simplify 6[-73-(-19-83)]=174 Please check
*July 16, 2008 by jay jay*

**algebra**

Check whether the ordered pair is a solution to the equation x =3/4; (1/2, 3/4). Please show me step by step how you came up with this answer because I am really confused.
*October 27, 2009 by Joy Chapman*

**Math 116 algebra please check**

Multiply 1/7×(-3/7)=-3/49 Please check
*July 16, 2008 by jay jay*

**chemistry help asap**

Please check these thanks. 1. In a titration, 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00 mL hydrofluroic acid solution. What is the molarity of the hydrofluroic acid solution? Answer: 0.502HF 2. A 35.00 mL-sample of NaOH solution is ...
*February 6, 2012 by missy*

**calc check please?**

Given the differential equation: dy/dx = y(1+x), y(0)=1, Use Euler's method with step size .1 to approximate y(.3). ... please check this for me! no one has responded to this question yet.. thanks. y' = y(1+x), y'(0) = 1(1+0)=1 ->the solution has slope 1 at the point (0,1...
*July 2, 2007 by COFFEE*

**algebra**

solve the following systwm graphically. Be sure to check your solution. if the system has an infinite number of solutions, use set-builder notation to write no solution, state this. 4y=x+8, x=2/3y+2
*July 9, 2014 by jessica*

**Math: Please check answer**

3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you
*February 28, 2013 by cassie*

**Algebra 1--Please, help me!**

Please, will someone check my answers and help me solve the other questions? 1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? ...
*June 3, 2014 by Victoria*

**Algebra 2/Math**

Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no solution
*November 20, 2010 by Karen*

**Algebra HELP**

Can someone check my answers? Solve for m: m + 6 = 3(2m - 4) a.4 b.-6/5 c.18/5 d.2 answer: c. 18/5 Solve the equation and check your solution: 3(x + 6) = 18 + 3x a. -6 b. 0 c. all real numbers d. no solution answer: b. 0 Solve the equation and check your solution: -2(x - 1) = ...
*February 18, 2011 by Cheryl*

**Algebra**

I'm not quite sure about these problems. I know how to do them, but it seems that I get the wrong answer. Maybe I'm supposed to get 'no solution' but I'm not sure. Could someone please help me with them? 5|6-5x|=15x-35 2|3x-7|=10x-8 1/4|4x+7|=8x+16 Ok for 5|6-5x|=15x-35 first ...
*September 14, 2006 by Maria*

**pre algebra**

Check whether (-4, -12) is a solution of the system of equations. y = 6x + 12 2x - y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , )
*April 11, 2014 by berta*

**Algebra**

please check my answers. thanxs! Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation. x^2 - 6x + 5 > 0 -I got (-ininity,1) u (5, infinity) x^2 - 3x - 18 < 0 -I got (-infinity,-3) u (6, infinity) x^2...
*October 24, 2007 by Liz*

**Algebra 1 or 2 **

5x/4 + 1/2 = x - 1/2 solve the equation and check your solution I solved the equation and got x = 2 . But I think I got it wrong ): can someone please help?
*August 31, 2012 by Cindy*

**Algebra**

Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(12x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x = 0 x-8 =0 x=8 the ...
*October 19, 2010 by JayLynne-Please check*

**Algebra-Please check**

Please check- sqrt of 2x + 15 = x Answers: -5.3 -3.5 -3 5 I think according to my calculations it would be 5, correct? sqrt root of 7-x = 3-solve for x Answers: -2 2 4 -4 My choice would be 2 Is that correct- I squared both sides and came out with 7-x = 9 and then x = 2 Thank ...
*October 12, 2010 by Juliette*

**Algebra-Can you please check this Reiny**

Can you check this: x^-3y^2/x^2y^-4 I think the answer is y^6/x^5 Thanks for explaining the other problem
*October 6, 2010 by DeAnne *

**algebra,math**

Solve the equation. Check both solutions and only write the real solution. the square root of 6m minus 5 = m A. {1} B. {5} C. {1, 5} D. no real solution I think its B
*October 24, 2011 by tracy*

**Algebra 1A**

could someone please help and check my answer thank you. simplify your answer, type an inequality symbol, then type an integer or a decimal solve 7 x + 2 <30 the solution is {x[< 30}, 0.30 is this correct?
*October 30, 2009 by Terri*

**Algebra**

Can you please check my answers? Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation. x-2/x+1 <0 my answer: (-infinity,-1) u (2, infinity) -x+8/x-3 > or equal to 0 my answer: (3,8] 2/x-2<1 my ...
*October 23, 2007 by Joss*

**Algebra 2**

Graph the linear system and estimate the solution. Then check the solution algebraically. 7x+y=-17 3x-10y=24 I have to have 4 labeled points and I'm not getting the fraction thing. Any help would be great!
*October 15, 2013 by Anonymous*

**Algebra-Please check**

We're learning arithmetic sequences-please check this for me-it's my first day calcuulating htese and I'm not sure If t(1) = 5 and t(n) = t(n-1) + 2, find the first 4 terms of the sequence I think it would be 5,7,9,11 because the difference is 2 so I just added 2 to each of ...
*May 2, 2011 by Jodie-*

**Chemistry**

24.5 ml of water are added to a 1.20 molar solution of nitric acid. If the concentration decreases to 0.55 molar, what volume of the concentrated solution was used? 1.20 M x mL = (24.5 mL + mL) x 0.55 M Solve for mL. Check my thinking. When you finish the calculation, check it...
*April 20, 2007 by Veronica*

**algebra**

explain how to check a solution of an equation.
*January 31, 2011 by Cindy*

**algebra**

please check and correct thanks Problem: solve and check the inequality if possible |4F+8|< 12 positive: negative: |4F+8| < 12 |4F + 8| < -12 4F + 8 -8 < 12 - 8 4F +8-8 < -12-8 4F < 4 4F< -20 F < 1 F< -5 solutions 1 and -5 or -5 < F < 1 check ...
*February 7, 2012 by ann*

**8th Grade Algebra- Answer Check**

Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 ...
*February 25, 2009 by Lily*

**need help please**

solve each system graphically. be sure to check your solution. if a system has an infinite number of solutions, use the set-builder notation to write solution set. if a system has no solution, state this. where appropriate, round to the nearest hundredth. 6x-2y=2 9x-3y=1
*December 7, 2011 by Mandy*

**algebra**

Solve the equation. Check your solution. 164=x-59
*January 15, 2013 by jenny*

**Algebra**

Hello, can someone help me solve and check the following 1) x - 8 = 20 Check: 2) x + 15 = 35 Check: 3) -x +6 = 3 Check: The symbol 'x' is in italic. If I can understand the symbols better, I belive I can get the hang of the course.
*January 8, 2010 by Tamir*

**language art CHECK**

Will somebody please check this for me and see if i used the words correctly please? Having spent many years as political opponents, the two senators have developed a(n)MUTUAL respect for each other. Please check if it is correct. thank you
*January 17, 2012 by saranghae12*

**Chem.**

Can you also check this one, Please and thank-you! 23. Acetylsalicylic acid, commonly known as ASA, is the most widely used drug in the world. ASA has the chemical formula, C8H7O2COOH, and a Ka of 3.27 X 10 – 4 mol/L. What is the pH of a 10 mol/L ASA solution? The pH of the ...
*July 19, 2006 by Jacy*

**Basic Algebra**

solve the equation & check your solution: 2/5x-9/25x=5
*July 9, 2011 by Catherine*

**Basic Algebra**

solve the equation m, and check the solution: 5/6x-1/5x+4=7/10x
*July 16, 2011 by Catherine*

**Algebra**

Solve the equation 5x+7=13-7x graphically. then check your solution algebraically.
*November 2, 2011 by Adri*

**algebra**

Megan factored the expression (-12x^2+52x-35) as (-2x+5)(6x-7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x-7) he got (-12x^2+44x-35),thus megan's solution does not appear to check please help megan to understand better.Explain your reasoning and ...
*February 13, 2011 by sam*

**algebra**

Megan factored the expression (-12x^2+52x-35) as (-2x+5)(6x-7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x-7) he got (-12x^2+44x-35),thus megan's solution does not appear to check please help megan to understand better.Explain your reasoning and ...
*February 13, 2011 by sam*

**algebra**

Megan factored the expression (-12x^2+52x-35) as (-2x+5)(6x-7) but when Jacob applied FOIL principle and multiplied out (2x+5)(6x-7) he got (-12x^2+44x-35),thus megan's solution does not appear to check please help megan to understand better.Explain your reasoning and ...
*February 13, 2011 by sam*

**Algebra Please Help/ Check**

why does the equation x^2=-9 has no real solution? This I can't figure out. why does the equation x^2 = 9 has two solutions? Is it because it satisfied by both 3 and -3 so it has two solutions.
*May 3, 2011 by Wendy Q*

**algebra**

is -2i square root of 2 a solution to x=8? lets check: (-2i sqrt 2)^2= -1^2 * 2^2 * i^2 *2 =-8 Answer: no.
*November 8, 2006 by Anonymous*

**Algebra (repost)**

Can you help me on this problem as well? (or anyone.) Solve each inequality and check your solution. h - > -7 4 (bumping)
*May 10, 2010 by Dean*

**algebra**

Solve the equation check for extraneous solution 6|6-4 x|=8 x+4answers are x=1, x=5/2.or x=2, x=5/2, x=5/2or x=1
*February 24, 2014 by jim*

**algebra**

What's the solution to 5n+1=5n-1. Please tell me if it's no solution or all real numbers or something else.
*September 29, 2009 by Cristine*

**algebra**

I need help with these please. What is the solution for 0.7x+5¡Ü1.1x-8? What would be the solution for, 15a+5b-12a-8b=
*June 2, 2008 by C*

**Algebra**

Please Solve: x+sqrt11−x = 5 I do not think there is a solution but here are the choices A. 2 B. 7 C. 2, 7 D. No solution
*August 2, 2009 by Rachale*

**ALGEBRA-Help please**

Find the solution to the following system of two linear equations, if it has a solution. x+3y=4, 3x+9y=12
*October 13, 2011 by Megan*

**Algebra**

Can you please explain this problem to me? Determine whether 30 is a solution of the equation x-13=14. Is 30 a solution? My answer is no. x-13=14 30-13=14 No, not true. Thanks.
*February 22, 2010 by B.B.*

**algebra **

Please help!!! Determine whether -10 is a solution of the equation 6(x-2)= -70 Is -10 a solution? Thanks for your help
*November 8, 2010 by thawk*

**Algebra**

Hello, can someone tell me if I got the following solve and check work correct? 1. solve and check 1/2x = 3 5/6 1/2x = 3 5/6 1/2x = 23/6 3x = 23/3 x = 23/3 And to check for it 1/2x = 3 5/6 1/2x = 23/6 46x = 6 x = 6/46 x = 3/23 2. Solve and check 3x + 2 / 2 = 7 3x + 2 / 2 = 7 ...
*April 13, 2010 by Tamir*

**algebra**

is there even a solution to this problem: x^2 − 10x + 20 = 0 I think this answer is no solution , please confirm I am right...
*October 21, 2013 by Anonymous*

**algebra 1b**

Solve each system using substitution. check your solution. a = 2/3b -3 a = 2b - 18 c = 3d -27 4d + 10c = 120
*January 24, 2008 by dillon*

**algebra**

Show all steps solve the equation check for extraneous solution 9|9-8 x|=2x+3
*February 18, 2014 by Molly *

**algebra**

Help me please I get confused with the positives and negatives. Please be kind to check my work and let me know where am I going wrong -4x + 10 = 58 -4x + 10 -10 = 58 -10 (is it - or +10?) -4x = 48 or 68 (do i add 58&10 or sub?) -4x/-4 = 48/-4 or 68/-4 (is the 4 -or+) x=12 or ...
*November 13, 2010 by thawk*

**Chemistry**

Can someone please check to see if I am doing this correctly. Thank you :) Q) Calculate the new molarity of a 35mL sample of 0.450 M CaCl2 solution that is diluted with enough water to make 250 mL of solution. A) 0.450 m CaCl2 x 35mL/250mL = 0.063 mL diluted solution
*April 1, 2013 by Kishwa*

**Algebra I-**

(solving for x) 3(x+5)=6x-4+7(-7x-1) Each time I try this i plug the numbers in and i find out that i am worng. Please help! I get -13/23 but I didn't check it. Post your work if you want me to check it and find your error.
*January 21, 2007 by Victor*

**math-please check**

is the solution to 2x^2-4x+5... 1(+/-)((sqrt6)/2)i ??
*August 22, 2010 by hannah*

**Algebra**

Andrew factored the expression 28x^3-42x^2+35x as 7x(4x^2+6x-5). But when Melissa applied the distributive law and multiplied out 7x(4x^2+6x-5) , she got 28x^3+42x^2-35x ; thus, Andrew’s solution does not appear to check. Why is that? Please help Andrew to understand this ...
*July 25, 2011 by Natalie*

**Chemistry(Please Check)**

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. ML solution. 1.What is the molarity of this solution?answer:0.0262 2.If you took out 15.0 mL of this solution, how many moles of potassium nitrate would you have?answer:0.393 3. What is the percent (m/v) ...
*April 23, 2012 by cateye*

**algebra**

To solve the inequality -1/2 k is greater then or equal to -5, Danny multiplied both sides by the reciprocal of -1/2 . His solution was k is greater then or equal to 10.What mistake did he make? Danny checked his solution, but his check did not let him know that he had made an...
*December 9, 2010 by lala*

**Algebra-please check**

Please check these: 1.When the fraction 2/3 is used as exponent, wht role does the denominator 3 play in evaluating expression? I think it indicates cube root of the base,correct? 2.sqrt of (2^4x/4^-2x) is equilvalent to 2^4x, correct? 3.Simplify (2xy^-2z^4/y^-3/z^3)^2 would ...
*December 12, 2011 by Tabitha*

**alegbra**

Use < or > to make the statement true. -11 > -5 is this right. Solve for the indicated letter. b=2c for c The solution is c=2*c is this right. Solve -0.5<-20 THe solution is (x|4 Check these problem for me please
*April 6, 2009 by Keaton*

**Algebra**

Can someone help me with this please. Andrew factored the expression 20x^3-12x^2+8x as 4x(5x^2-12x^2+8x) but when melissa applied the distributive law and multiplied out 4x(5x^2-12x^2+8x)she got 20x^3-48x^3+32x thus Andrews solution does not appear to check. Why is that? ...
*August 2, 2012 by Anonymous**

**Math**

Please help!!!! Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x - 2y = 2, 9x - 3y = 1 My answer: Equation 1 X-...
*October 11, 2010 by Jordyn*

**Chemistry please help**

Hey guys I did a lab and I have to answer the questions relating to the lab. I did question can someone please check if these are accurate 1. Calculation to Determine the molecular weight of unknown substance Mass of unknown used: 2.0 g Mass of water used: 50.0 g (0.05kg) Kf...
*May 27, 2009 by Saira*

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