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# Recent problems solved by 'Fombitz'

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 absolute-value/355888: If the absolute value of x-a is equal to the absolute value of x-b then what is x equal to? I think x is equal to -a+b over 2, I'm not sure though & need help.1 solutions Answer 254106 by Fombitz(13828)   on 2010-10-13 16:38:52 (Show Source): You can put this solution on YOUR website! and and and and From the first expression, there is no solution. From the second expression, is the intersection point. . . . As an example, . . Should have an intersection point (solution) at Then . . .
 Numbers_Word_Problems/355865: the product of 8 and the sum of a number and 3 is equal to 40. Find the number1 solutions Answer 254095 by Fombitz(13828)   on 2010-10-13 15:44:04 (Show Source): You can put this solution on YOUR website!Let N be the number,
 Complex_Numbers/355875: show that the integration from ( 0 to infinity ) for ( cos 3x / ( x^2+1)^2 )= 2pi/e^3 please .. help .. with steps of solution 1 solutions Answer 254094 by Fombitz(13828)   on 2010-10-13 15:42:57 (Show Source): You can put this solution on YOUR website!DUPLICATE See Answer 253988
 Quadratic-relations-and-conic-sections/355606: Graph each circle. Label the center and radius length. (x-3)^2+y^2=361 solutions Answer 254093 by Fombitz(13828)   on 2010-10-13 15:41:26 (Show Source): You can put this solution on YOUR website!The circle is centered at (,) with a radius of 6. . . .
 Equations/355794: 5/x+3 + 11/x-6 = 9/x^2-3x-181 solutions Answer 254091 by Fombitz(13828)   on 2010-10-13 15:36:19 (Show Source): You can put this solution on YOUR website!Use the common denominator, . . . . . . . . . One solution:
 Equations/355795: 1-5/x - 24/x^2=01 solutions Answer 254089 by Fombitz(13828)   on 2010-10-13 15:30:50 (Show Source): You can put this solution on YOUR website!Use the common denominator, . Two solutions: . . .
 Linear_Algebra/355841: what the meaning of rings?1 solutions Answer 254088 by Fombitz(13828)   on 2010-10-13 15:27:31 (Show Source): You can put this solution on YOUR website!Onion? Engagement? Saturn's? or do you mean in an algebraic sense. . . . Here's a concise write-up with links if you're interested. http://mathworld.wolfram.com/Ring.html
 test/355813: 1) Write y=5/3x-6/8 in standard form. 2) Write y=0.40x+0.39 in standard form.1 solutions Answer 254087 by Fombitz(13828)   on 2010-10-13 15:23:47 (Show Source): You can put this solution on YOUR website! . . .
 Equations/355869: >multiply (-3*4) + (4*-2) + (-3*3) > > so it should be -12 + -8 + -9= -29 > > final answer is now -29 my final answer is 5 1 solutions Answer 254086 by Fombitz(13828)   on 2010-10-13 15:20:17 (Show Source): You can put this solution on YOUR website!Yes, that's correct. Well done.
 Numbers_Word_Problems/355870: Can you help me with this equation on my math homework? I'm in Algebra 8th grade and this is my problem: 1/8(B-9)=B+9 TY Victoria1 solutions Answer 254084 by Fombitz(13828)   on 2010-10-13 15:19:29 (Show Source): You can put this solution on YOUR website!I assume you're solving for . Multiply both sides by 8. Now take it from there and solve for .
 test/355862: Please help me solve this equation: Evaluate the following integrals using trigonometric substitutions. a) b) 1 solutions Answer 254082 by Fombitz(13828)   on 2010-10-13 15:13:19 (Show Source): You can put this solution on YOUR website!Use a substitution. Let , . . . Take it from there and solve for the integral in u, then back substitute to x. . . . Complete the square in the denominator. Substitute, let , Substitute again, let , Take it from here and get the solution in v, back substitute for u, and then back substitute for x. . . .
 Linear-equations/355861: how do I graph Slope -3; and y-intercept (0,2)?? I'm having troubles when the slope is not a fraction!1 solutions Answer 254078 by Fombitz(13828)   on 2010-10-13 14:57:57 (Show Source): You can put this solution on YOUR website! is a fraction, the denominator is just . Maybe thinking about it that way will help you. . . So start with the y-intercept (,). The slope is change in divided by change in . So if I move unit in , I should move units in . (,)+()=(,)=(,) So then (,) is another point on the line. Plot those two points and connect them with the line. . . .
 Exponents/355793: A to the 10th power divided by A to the N power1 solutions Answer 254073 by Fombitz(13828)   on 2010-10-13 14:53:58 (Show Source):
 Linear-equations/355860: What is a equation in slope intercept form of the line that has the same slope as 3x-y+4=0 and contains the point (2,-3)?1 solutions Answer 254072 by Fombitz(13828)   on 2010-10-13 14:52:53 (Show Source): You can put this solution on YOUR website!It would have the same x-y relationship. so use the point to determine the right hand side.
 Linear-equations/355848: Reduce to lowest terms. -2x-8/x^2+2x-81 solutions Answer 254065 by Fombitz(13828)   on 2010-10-13 14:28:40 (Show Source):
 Graphs/355847: PLEASE CAN YOU EXPLAIN THE STEPS WRITE AN EQUATION FOR THE VERTICAL LINE THROUGH THE POINT (5,7) THANK YOU1 solutions Answer 254064 by Fombitz(13828)   on 2010-10-13 14:27:07 (Show Source): You can put this solution on YOUR website!Vertical lines have the form, . Use the given point's x-coordinate to solve for
 Numbers_Word_Problems/355735: If you double an odd number, is the result another odd number?1 solutions Answer 254017 by Fombitz(13828)   on 2010-10-13 09:58:42 (Show Source): You can put this solution on YOUR website!No, doubling a number is adding it to itself. Adding two odd numbers gives you an even number. Odd numbers are even numbers plus 1. Odd+Odd=(Even+1)+(Even+1)=Even+Even+2 An even number plus an even number is an even number.
 Reduction-of-unit-multipliers/355736: I have a homework question that I don't really understand..It says 'Use one unit multiplier to convert 16 miles to feet.' There is 5,280 feet in a mile but I don't understand anything else.1 solutions Answer 254015 by Fombitz(13828)   on 2010-10-13 09:56:27 (Show Source): You can put this solution on YOUR website!The unit multiplier would be (5280 ft/1 mile). 16 miles*(5280 ft/1 mile)=84480 ft
 Graphs/355701: PLEASE EXPLAIN WRITE AN EQUATION FOR THE LINE THROUGH THE POINT(1,1) AND PERPENDICULAR TO THE LINE 2X+Y=9 THANK YOU 1 solutions Answer 254014 by Fombitz(13828)   on 2010-10-13 09:55:21 (Show Source): You can put this solution on YOUR website!Convert the line to slope-intercept form, . Perpendicular lines have slopes that are negative reciprocals. . . . Use the point to determine . . . . .
 Linear-equations/355731: please explain steps solve the linear equation 5x/2+2=12 thank you1 solutions Answer 254013 by Fombitz(13828)   on 2010-10-13 09:51:22 (Show Source): You can put this solution on YOUR website! Multiply both sides by 2. Now solve for .
 Probability-and-statistics/355635: What s the answer to the following question: Estimate the proportion of observations falling within 1.2 standard deviations from the mean on a normal distribution. 1 solutions Answer 254012 by Fombitz(13828)   on 2010-10-13 09:50:34 (Show Source): You can put this solution on YOUR website!In other words what is the area of the distribution curve between (,). Find . That's the area of the region up to . The area from there to would then be, Twice that area would give us the area from (,).
 Linear-equations/355724: http://img510.imageshack.us/img510/8531/76324556.jpg Simplify the expression r−3s5 t 2 r2st−2 . A. s4t4 r5 C. r−1s4 B. s4 r6t2 D. r−5s41 solutions Answer 254010 by Fombitz(13828)   on 2010-10-13 09:44:59 (Show Source): You can put this solution on YOUR website!Use parentheses and "/" to separate numerator and denominator in a fraction and the ^ symbol for exponents. (r^( -3)s^5t^2)/(r^2st^( -2))= . . .
 Linear-equations/355730: http://img251.imageshack.us/img251/455/40178171.jpg Find the square root of the fraction 64/100. A. 4 5 C. √8 √ 10 B. √4 √5 D. 4√2 101 solutions Answer 254008 by Fombitz(13828)   on 2010-10-13 09:40:59 (Show Source):
 Mixture_Word_Problems/355465: a solution containing 28% fungicide is to be mixed with a solution containing 40% fungicide to make 300L of a solution containing 36% fungicide. how much of each solution should be used? 1 solutions Answer 254007 by Fombitz(13828)   on 2010-10-13 09:39:54 (Show Source): You can put this solution on YOUR website!Let A be the amount of 28% fungicide and let B be the amount of 40% fungicide. . . . Volume: 1. . . . Concentration: 2. Multiply eq. 1 by (-10) and add to eq. 2 to eliminate B and solve for A. liters Then from eq. 1, liters