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jim_thompson5910 answered: 28582 problems
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Functions/556736: Find the domain of the function f(x) = 3x-1 1 solutions Answer 362227 by jim_thompson5910(28593)   on 2012-01-12 23:01:22 (Show Source): You can put this solution on YOUR website! The domain of ANY polynomial is the set of all real numbers. So the domain of f(x) = 3x-1, which is a polynomial, is the set of all real numbers.

Expressions-with-variables/556655: Please show me how to solve this problem: 2x+1=5 Thanks. 1 solutions Answer 362211 by jim_thompson5910(28593)   on 2012-01-12 21:33:00 (Show Source): You can put this solution on YOUR website! Start with the given equation. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

test/556495: What is the formula for 4=29-5y 1 solutions Answer 362177 by jim_thompson5910(28593)   on 2012-01-12 17:43:16 (Show Source): You can put this solution on YOUR website! 4=29-5y 4 - 29 = 29-5y - 29 -25 = -5y -25/(-5) = -5y/(-5) 5 = y y = 5 If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Equations/556479: j-(-19)=-79 1 solutions Answer 362175 by jim_thompson5910(28593)   on 2012-01-12 17:22:30 (Show Source): You can put this solution on YOUR website! j-(-19)=-79 j+19=-79 j = -79 - 19 j = -98 If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Quadratic_Equations/556472: Determain the nature of the solutions. x^2+18=0 A. 1 real solution B. 2 imaginary solutions C. 2 real solutions I got B. Am I right? 1 solutions Answer 362173 by jim_thompson5910(28593)   on 2012-01-12 17:13:59 (Show Source): You can put this solution on YOUR website! You are correct. Good job.

Quadratic_Equations/556467: Please Help! Find the vertex, line of symmetry, the maximum/minimum value of the quadratic function. f(x)= -2x^2+2x+10 I got x= 1/2 y= 21/2 the line of symmetry is x= 1/2 the maximum/minimum of f(x)is 21/2 the value. f(1/2)=(21/2)is the maximum Did I do this right? 1 solutions Answer 362171 by jim_thompson5910(28593)   on 2012-01-12 17:10:11 (Show Source): You can put this solution on YOUR website! You did everything correctly. Congratulations.

Numeric_Fractions/556453: wat is 3x=x 1 solutions Answer 362169 by jim_thompson5910(28593)   on 2012-01-12 17:04:11 (Show Source): You can put this solution on YOUR website! 3x=x 3x-x = 0 2x = 0 x = 0/2 x = 0

Travel_Word_Problems/556456: if you have drove 75 miles and hour for 3 hours how far have you driven? 1 solutions Answer 362168 by jim_thompson5910(28593)   on 2012-01-12 17:03:21 (Show Source): You can put this solution on YOUR website! d = rt d = 75*3 d = 225 So you've driven 225 miles If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Equations/556424: 6h - 2(h + 6) = 10h 1 solutions Answer 362164 by jim_thompson5910(28593)   on 2012-01-12 16:20:59 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Combine like terms on the left side. Add to both sides. Subtract from both sides. Combine like terms on the left side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Angles/556421: find the measure of the supplement and the complement of an angle with the given measure 10^0 1 solutions Answer 362163 by jim_thompson5910(28593)   on 2012-01-12 16:20:08 (Show Source): You can put this solution on YOUR website! Supplement: 180 - 10 = 170 Complement: 90 - 10 = 80

Linear-systems/556418: 5x + 3y = 23 2x + 4y = 12 Please help me figure out what the x and y are. my teacher wants me to present my answer to the class tomorrow and how i did it. Thanks in advance. 1 solutions Answer 362160 by jim_thompson5910(28593)   on 2012-01-12 16:12:15 (Show Source): You can put this solution on YOUR website! Start with the given system of equations: Multiply the both sides of the first equation by 4. Distribute and multiply. Multiply the both sides of the second equation by -3. Distribute and multiply. So we have the new system of equations: Now add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this: Group like terms. Combine like terms. Simplify. Divide both sides by to isolate . Reduce. ------------------------------------------------------------------ Now go back to the first equation. Plug in . Multiply. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. So the solutions are and . Which form the ordered pair . This means that the system is consistent and independent. Notice when we graph the equations, we see that they intersect at . So this visually verifies our answer. Graph of (red) and (green) If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Equations/556398: 4(x+3)= 16 1 solutions Answer 362158 by jim_thompson5910(28593)   on 2012-01-12 15:55:35 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Average/556394: Evaluate the expression by hand. 100 - 2 ∙ 33 1 solutions Answer 362157 by jim_thompson5910(28593)   on 2012-01-12 15:54:16 (Show Source): You can put this solution on YOUR website! 100 - 2*33 100 - 66 34 So 100 - 2*33 = 34 If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Linear-equations/556385: with a slope of -3 and a y-intercept of 1 1 solutions Answer 362156 by jim_thompson5910(28593)   on 2012-01-12 15:37:50 (Show Source): You can put this solution on YOUR website! y = mx + b y = -3x + 1

test/556389: 1 solutions Answer 362155 by jim_thompson5910(28593)   on 2012-01-12 15:37:25 (Show Source): You can put this solution on YOUR website! missing problem.

Linear-equations/556369: Write an equation with a slope of -3 and a y-intercept of 3 1 solutions Answer 362149 by jim_thompson5910(28593)   on 2012-01-12 15:15:25 (Show Source): You can put this solution on YOUR website! y = mx+b y = -3x+3 *** Note: m is the slope and b is the y-intercept ***

Quadratic_Equations/556361: Help please! Find and label the vertex and line of symmetry. graph the function. f(x)= -1/5x^2 I got (0,0) and the line of symmetry is 0. Am I right? 1 solutions Answer 362148 by jim_thompson5910(28593)   on 2012-01-12 15:09:47 (Show Source): You can put this solution on YOUR website! The line of symmetry is x = 0. So you're very close. Everything else is perfect. Congrats.

Equations/556362: 6/8=a/2 1 solutions Answer 362147 by jim_thompson5910(28593)   on 2012-01-12 15:08:42 (Show Source): You can put this solution on YOUR website! 6/8=a/2 6*2=8a 12 = 8a 12/8 = a 3/2 = a a = 3/2 If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Graphs/556339: Graph the equation 5x+2y=10. Solve for y. Thanks ya'll. 1 solutions Answer 362145 by jim_thompson5910(28593)   on 2012-01-12 15:06:40 (Show Source): You can put this solution on YOUR website! Start with the given equation. Subtract from both sides. Rearrange the terms. Divide both sides by to isolate y. Break up the fraction. Reduce. Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis So we have one point Now since the slope is comprised of the "rise" over the "run" this means Also, because the slope is , this means: which shows us that the rise is -5 and the run is 2. This means that to go from point to point, we can go down 5 and over 2 So starting at , go down 5 units and to the right 2 units to get to the next point Now draw a line through these points to graph So this is the graph of through the points and If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Number-Line/556351: How do I show 2/5 on a number line 1 solutions Answer 362144 by jim_thompson5910(28593)   on 2012-01-12 15:05:13 (Show Source): You can put this solution on YOUR website! 2/5 = 0.4 so divide the interval from 0 to 1 into ten pieces and place the point on the fourth tick mark

test/556267: 1 solutions Answer 362143 by jim_thompson5910(28593)   on 2012-01-12 15:04:17 (Show Source): You can put this solution on YOUR website! problem is missing, please repost

test/556348: 1 solutions Answer 362142 by jim_thompson5910(28593)   on 2012-01-12 15:03:58 (Show Source): You can put this solution on YOUR website! problem missing

Rectangles/556357: What is the perimeter of a 5 inch by 7 inch rectangle? 1 solutions Answer 362141 by jim_thompson5910(28593)   on 2012-01-12 15:03:29 (Show Source): You can put this solution on YOUR website! P = 2L+2W P = 2*7+2*5 P = 14+10 P = 24 So the perimeter is 24 inches If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

real-numbers/556353: What is 5/9? Real number, Irrational number. 1 solutions Answer 362136 by jim_thompson5910(28593)   on 2012-01-12 14:50:15 (Show Source): You can put this solution on YOUR website! 5/9 is real and it's rational, so it's NOT irrational.

test/556354: True or false is 6:2 the same as 3:1 1 solutions Answer 362135 by jim_thompson5910(28593)   on 2012-01-12 14:49:16 (Show Source): You can put this solution on YOUR website! This is true. Simply divide each component by 2 to go from 6:2 to 3:1

expressions/555078: x - 3 (x-2) = 7x - (2x + 5) solve for x (I don't understand how to get to the solution although my maths teacher has explained it many times I don't understand the way he explained it) 1 solutions Answer 362126 by jim_thompson5910(28593)   on 2012-01-12 13:27:24 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Combine like terms on the left side. Combine like terms on the right side. Subtract from both sides. Subtract from both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Radicals/555508: √216x^3 1 solutions Answer 362125 by jim_thompson5910(28593)   on 2012-01-12 13:25:51 (Show Source): You can put this solution on YOUR website! Start with the given expression. Factor into Factor into Break up the square root using the identity . Take the square root of to get . Take the square root of to get . Rearrange and multiply the terms. ================================================== Answer: So simplifies to In other words, where every variable is non-negative. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Numeric_Fractions/556262: A serving of a certain kind of cereal is 2/3 cup. There are 12 cups of cereal in the box. How many servings of cereal are in the box? 1 solutions Answer 362124 by jim_thompson5910(28593)   on 2012-01-12 13:23:43 (Show Source): You can put this solution on YOUR website! There are 12/(2/3) = 12*(3/2) = 36/2 = 18 total servings.

percentage/556325: what is 75 percent of 25 1 solutions Answer 362123 by jim_thompson5910(28593)   on 2012-01-12 13:17:00 (Show Source): You can put this solution on YOUR website! 75% of 25 0.75*25 18.75 So 75% of 25 is 18.75

Equations/556323: Solve for y. 3x + 2 = y - x 1 solutions Answer 362122 by jim_thompson5910(28593)   on 2012-01-12 13:14:11 (Show Source): You can put this solution on YOUR website! 3x + 2 = y - x 3x + 2 + x = y 4x + 2 = y y = 4x + 2 If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Equations/556320: help solve the equation 10-(-y-6)=3(y+4)-7(y+4) 1 solutions Answer 362121 by jim_thompson5910(28593)   on 2012-01-12 13:10:03 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Combine like terms on the left side. Combine like terms on the right side. Subtract from both sides. Add to both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim