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# Recent problems solved by 'Fombitz'

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 Quadratic_Equations/379042: use the quadratic formula to solve (r-3)(r+5)=21 solutions Answer 269178 by Fombitz(13828)   on 2010-12-01 14:47:25 (Show Source): You can put this solution on YOUR website! . .
 Quadratic_Equations/379039: x^2/4-x/2=11 solutions Answer 269176 by Fombitz(13828)   on 2010-12-01 14:43:00 (Show Source):
 Inequalities/379036: sketch a graph with a polynomial of degree 3 with a negative leading coefficient and 2 x intercepts. thank you so much! 1 solutions Answer 269175 by Fombitz(13828)   on 2010-12-01 14:41:42 (Show Source): You can put this solution on YOUR website! . . .
 Evaluation_Word_Problems/379037: Please help me solve this question. Calculate the net force necessary to give an object with a mass of 2.0 kg an acceleration of 5.0 m/s21 solutions Answer 269174 by Fombitz(13828)   on 2010-12-01 14:39:54 (Show Source): You can put this solution on YOUR website!This is really a physics question, not an algebra question. Newtons
 Polynomials-and-rational-expressions/378983: simplify each radical expression negative sqrt 200x^2y^2z^2 thanks1 solutions Answer 269172 by Fombitz(13828)   on 2010-12-01 14:38:58 (Show Source):
 Rectangles/378970: What is the base of a rectangle when the area is 7 and the length is 6?1 solutions Answer 269170 by Fombitz(13828)   on 2010-12-01 14:37:41 (Show Source):
 Probability-and-statistics/378974: If the odds in favor of winning a game are 3:15. What are the odds against winning? What is the probability of winning?1 solutions Answer 269168 by Fombitz(13828)   on 2010-12-01 14:36:30 (Show Source): You can put this solution on YOUR website!Odds in favor of winning are or . Odds against winning are or . Probability of winning is
 absolute-value/379012: evaluate 5-|a+5b| if a=-12 and b=21 solutions Answer 269166 by Fombitz(13828)   on 2010-12-01 14:34:03 (Show Source):
 Radicals/379022: solve for x:1 solutions Answer 269155 by Fombitz(13828)   on 2010-12-01 14:05:45 (Show Source): You can put this solution on YOUR website! Two solutions: . . . . . When verifying the solutions, remember that and .
 Radicals/379021: Solve for y: 1 solutions Answer 269153 by Fombitz(13828)   on 2010-12-01 14:02:52 (Show Source):
 Radicals/379018: Simplify by factoring: sqrt(x^18)1 solutions Answer 269151 by Fombitz(13828)   on 2010-12-01 13:59:31 (Show Source):
 Quadratic_Equations/378944: find the root of the equation x^4-3x^2-54=01 solutions Answer 269150 by Fombitz(13828)   on 2010-12-01 13:57:56 (Show Source): You can put this solution on YOUR website!Use a substitution. Let , then Two solutions: . . .
 Equations/378948: d=6h Solve for h?1 solutions Answer 269148 by Fombitz(13828)   on 2010-12-01 13:55:48 (Show Source): You can put this solution on YOUR website!Divide both sides by .
 Polynomials-and-rational-expressions/378946: degree of 4 zeros: i, 3+i........find the remaining zeros 1 solutions Answer 269147 by Fombitz(13828)   on 2010-12-01 13:55:12 (Show Source): You can put this solution on YOUR website!Complex roots always come in complex conjugate pairs. Since is a solution, is also a solution. Since is a solution, is also a solution.
 Polynomials-and-rational-expressions/378947: degree if 3 zeros: 1+i and -5........form a polynomial f(x) with real coefficients have the given degree and zeros1 solutions Answer 269146 by Fombitz(13828)   on 2010-12-01 13:52:32 (Show Source): You can put this solution on YOUR website!Complex roots always come in complex conjugate pairs. Since is a solution, is also a solution.
 Radicals/378976: Please solve. If one side of a right triangle is 12 and its hypotenuse is 15,what is the lentgh of the other side?1 solutions Answer 269145 by Fombitz(13828)   on 2010-12-01 13:49:09 (Show Source): You can put this solution on YOUR website!Use the Pythagorean theorem,
 Polynomials-and-rational-expressions/379014: solve sqrt x + sqrt x-3 =0 im coming up with no solution am i right thank you1 solutions Answer 269143 by Fombitz(13828)   on 2010-12-01 13:47:56 (Show Source): You can put this solution on YOUR website! Yes, you are correct, there is no solution. . . . Graphical verification. As you can see the graph of never crosses the x-axis. . . .
 Radicals/378967: I need to rationalize the denominator and assume all variables represent positive real numbers: 23/the square root of 3x1 solutions Answer 269142 by Fombitz(13828)   on 2010-12-01 13:44:53 (Show Source):
 Polynomials-and-rational-expressions/379011: rationalizethe follow sqrt 11 _______ sqrt 2 thank you1 solutions Answer 269141 by Fombitz(13828)   on 2010-12-01 13:42:54 (Show Source):
 Radicals/378965: Please simplify and express in simplest radical form ,Do not use a table or calculator. square root 2 + square root 2/91 solutions Answer 269139 by Fombitz(13828)   on 2010-12-01 13:41:41 (Show Source):
 Volume/378960: Show all the steps for solving for the indicated variable. Volume of a Cone Solve for h: V= Pi x R^2xh / 3 1 solutions Answer 269137 by Fombitz(13828)   on 2010-12-01 13:40:20 (Show Source):
 Square-cubic-other-roots/379007: I am trying to find out how to simplify and factor the expression under the radical which is the radicand of 284m^231 solutions Answer 269136 by Fombitz(13828)   on 2010-12-01 13:39:06 (Show Source):
 Evaluation_Word_Problems/379008: Hi, I need help with this word problem it could be elimination or substituiton method Prob: pure acid is added to a 10% acid solution to obtain 54 liters of a 20% acid solution. What amounts of each should be used1 solutions Answer 269135 by Fombitz(13828)   on 2010-12-01 13:37:24 (Show Source): You can put this solution on YOUR website!Pure acid is a 100% solution. Let A be the amount of pure acid. Let B be the amount of 10% solution. 1. . . 2. Subtract eq. 1 from eq. 2, liters Then from eq. 1, liters
 Proportions/378978: how many gallons of lemonade will it take to serve 25000 people 1 solutions Answer 269134 by Fombitz(13828)   on 2010-12-01 13:34:18 (Show Source): You can put this solution on YOUR website!How thristy are they? . . . THere's not enough information to determine.
 Equations/378954: 4x+7y=8 x=19-6y Solve by substitution method?1 solutions Answer 269133 by Fombitz(13828)   on 2010-12-01 13:23:43 (Show Source): You can put this solution on YOUR website!1. 2. Substitute eq. 2 into eq. 1, Now use either equation to solve for .
 Polynomials-and-rational-expressions/378997: I need help figuring out how to do these kind of problem. I've been shown a few times but I can't seem to get it. Please help x^2-16 over x^2-6x+91 solutions Answer 269132 by Fombitz(13828)   on 2010-12-01 13:21:35 (Show Source): You can put this solution on YOUR website! No further simplication is available.
 Polynomials-and-rational-expressions/379001: rationalize the follwing sqrt 22 _______ sqrt 2 thank you1 solutions Answer 269131 by Fombitz(13828)   on 2010-12-01 13:20:22 (Show Source):
 Polynomials-and-rational-expressions/378696: how do i solve this problem.. 2x^2y/x^3y^21 solutions Answer 268971 by Fombitz(13828)   on 2010-11-30 22:29:48 (Show Source):
 Expressions-with-variables/378609: Instruction:Wrie the equation of the line through the given point and parallel to the given line 1.y= 3x -4 (-2,1)1 solutions Answer 268960 by Fombitz(13828)   on 2010-11-30 22:15:48 (Show Source): You can put this solution on YOUR website!Parallel lines have identical slopes. . . Use the point to solve for . . . . . . .
 Average/378641: Compare the slopes and intercepts on the graph of g(x) = -2x + 1, f(x) = x1 solutions Answer 268959 by Fombitz(13828)   on 2010-11-30 22:14:06 (Show Source): You can put this solution on YOUR website! . . .
 Quadratic-relations-and-conic-sections/378661: find the vertex of this quadratic function : y=(4x+3)^2-71 solutions Answer 268958 by Fombitz(13828)   on 2010-11-30 22:12:48 (Show Source): You can put this solution on YOUR website! . . . Vertex:(,) . . .