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# Recent problems solved by 'Fombitz'

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 Functions/342655: find the domain of the function: f(s)= the square root of s-1/s-41 solutions Answer 245266 by Fombitz(13828)   on 2010-09-13 20:57:49 (Show Source): You can put this solution on YOUR website! Arguments for the square root function must be non-negative. Break up the number line into three regions. . . . Region 1:(,] Region 2:[,) Region 3:(,) . . . is allowed, is not allowed since the function is undefined. . . . Choose a point in each region (not an endpoint). Test the inequality. If the inequality is satisifed, the region is part of the solution. . . . Region 1: True, this region is part of the solution region. . . . Region 2: False, this region is part of the solution region. . . . Region 1: True, this region is part of the solution region. . . . Domain:(,]U(,)
 Numeric_Fractions/342652: 3/4=n/201 solutions Answer 245262 by Fombitz(13828)   on 2010-09-13 20:50:25 (Show Source): You can put this solution on YOUR website!Multiply both sides by .
 test/342659: Show work. 5-(t+3)=-1+2(t-3) Solve for t1 solutions Answer 245260 by Fombitz(13828)   on 2010-09-13 20:49:12 (Show Source):
 expressions/342670: what are all solutions of x to the second power = 16 1 solutions Answer 245258 by Fombitz(13828)   on 2010-09-13 20:47:54 (Show Source): You can put this solution on YOUR website! Two solutions:
 Mixture_Word_Problems/342698: how do i set up the equation for "the amount of acid in x liters of a 20% acid solution"1 solutions Answer 245256 by Fombitz(13828)   on 2010-09-13 20:47:12 (Show Source): You can put this solution on YOUR website!if the acid solution is 20% acid, then X amount of solution would have (20/100)X amount of acid.
 Functions/342649: find the domain of the function f(x) = 5x to the second power +2x-1... and please explain who you figure this out.. 1 solutions Answer 245254 by Fombitz(13828)   on 2010-09-13 20:46:02 (Show Source): You can put this solution on YOUR website!The domain is the x values for which f(x) makes sense or is defined. There are no restrictions so the domain is (,)
 Expressions-with-variables/342648: If x + 4 y = 10 and - x + 5 y = 8 what is the value of 3x - 2?1 solutions Answer 245252 by Fombitz(13828)   on 2010-09-13 20:44:25 (Show Source): You can put this solution on YOUR website!Add the two equations together. Then use an equation to solve for x. So then
 Linear-equations/342643: 1.Find and label the vertex and the line of symmetry f(x)=-2(x+2) 1 solutions Answer 245251 by Fombitz(13828)   on 2010-09-13 20:42:44 (Show Source): You can put this solution on YOUR website!Vertex and line of symmetry are applicable to quadratic equations. This equation is linear. Please re-post.
 Graphs/342642: 2x-3over7=x+11 solutions Answer 245250 by Fombitz(13828)   on 2010-09-13 20:41:35 (Show Source):
 Square-cubic-other-roots/342662: what is 6x+y divided by 6x-y ?1 solutions Answer 245249 by Fombitz(13828)   on 2010-09-13 20:40:28 (Show Source):
 Numbers_Word_Problems/342672: what is a problem that equals 216,000?1 solutions Answer 245248 by Fombitz(13828)   on 2010-09-13 20:39:46 (Show Source):
 Probability-and-statistics/342692: You have a bag with five tiles. Three are yellow, one is blue and one is red. How many different patterns could you create?1 solutions Answer 245247 by Fombitz(13828)   on 2010-09-13 20:38:59 (Show Source): You can put this solution on YOUR website!How many tiles in the pattern? Do you have to use all 5 tiles?
 Graphs/342087: Use the intercepts to graph the equation x+5y=20?1 solutions Answer 245166 by Fombitz(13828)   on 2010-09-13 16:40:50 (Show Source): You can put this solution on YOUR website!To find the x-intercept, set and solve for . (20,0) To find the y-intercept, set and solve for . (0,4) . . . Plot the points, then connect the points with the line. . . .
 Length-and-distance/342170: what are the coordinates that has the same length of 13? the coordinated (2,1) and (14,6) are already taken.1 solutions Answer 245164 by Fombitz(13828)   on 2010-09-13 16:36:54 (Show Source): You can put this solution on YOUR website!(0,0) to (13,0) (1,0) to (14,0) and so on.
 Numbers_Word_Problems/342445: 3o increased by 3 times the square of a number?1 solutions Answer 245163 by Fombitz(13828)   on 2010-09-13 16:35:56 (Show Source): You can put this solution on YOUR website!Let be the number,
 Numbers_Word_Problems/342491: the sum of three numbers is 75.the second number is 5 more than 4 times the first, and the third is 2 times the first.find the second number 1 solutions Answer 245162 by Fombitz(13828)   on 2010-09-13 16:35:03 (Show Source): You can put this solution on YOUR website!Let A,B and C be the numbers. 1. Substitute into eq. 1, . . . . . .
 Quadratic_Equations/342492: How do you find a, b, and c of the equation y=ax2+bx+c?1 solutions Answer 245159 by Fombitz(13828)   on 2010-09-13 16:32:25 (Show Source): You can put this solution on YOUR website!You can find ,,and if you have three (,) pairs from the quadratic equation. Is that how you mean?
 Travel_Word_Problems/342485: "Two cars leave Denver at the same time and travel in opposite directions. One car travels 10mi/h faster than the other car. The cars are 500mi appart in 5h. How fast is each car traveling?" (I was hoping that somebody could lend me a helping hand on this problem. I'd say word problems are probably my worst nightmare!)1 solutions Answer 245157 by Fombitz(13828)   on 2010-09-13 16:30:51 (Show Source): You can put this solution on YOUR website!Rate*Time=Distance . . . . . . . . . mph . . . mph
 Exponents/342487: Hi, Help me explain: 2 to the third power to the 2nd power? Please tell me the rules dealing with exponents having exponents? thanks1 solutions Answer 245154 by Fombitz(13828)   on 2010-09-13 16:27:06 (Show Source): You can put this solution on YOUR website!In that case, multiply the exponents.
 Mixture_Word_Problems/341982: √7x^5√14x1 solutions Answer 245152 by Fombitz(13828)   on 2010-09-13 16:25:39 (Show Source):
 Exponents/342478: I have done the following problems and just wanted to know if I am doing them correct: I got: I got: I got: Thanks a lot!!!1 solutions Answer 245149 by Fombitz(13828)   on 2010-09-13 16:22:19 (Show Source): You can put this solution on YOUR website! (1/2) right, (1/2) wrong. . . . Good work! . . . Good work!
 Linear-equations/342068: what is a line parallel to the line y=5x-12 and passing through the point (-2,-6)?1 solutions Answer 245144 by Fombitz(13828)   on 2010-09-13 16:17:01 (Show Source): You can put this solution on YOUR website!Parallel lines have identical slopes. . . . Use the point to solve for . . . .
 Quadratic_Equations/342472: Solve 4x^2=20 Find the x-intercepts of f(x)=4x^2-20. What are the solutions? x=?(type an exact answer, using radicals as needed. rationalize all denominators. express complex numbers in terms of i. use a comma to separate answers. What are the x-intercepts? or are there no x-intercepts?(type an ordered pair. type an exact answer, using radicals as needed. rationalize all denominators. use a comma to separate answers as needed.1 solutions Answer 245141 by Fombitz(13828)   on 2010-09-13 16:15:12 (Show Source): You can put this solution on YOUR website! Two solutions: . . .
 Graphs/342474: 2(x+3)<541 solutions Answer 245138 by Fombitz(13828)   on 2010-09-13 16:12:33 (Show Source):
 Angles/342020: An angle has measure 3x-10 degrees and its complement has measure 2x+20 degrees. Find the measure of each.1 solutions Answer 245135 by Fombitz(13828)   on 2010-09-13 16:11:52 (Show Source): You can put this solution on YOUR website! . . . . . . . . .
 Exponents/342470: I have done the following problems and just wanted to know if I am doing them correct: Thanks a lot!!!1 solutions Answer 245132 by Fombitz(13828)   on 2010-09-13 16:09:33 (Show Source): You can put this solution on YOUR website!I don't see your solutions attached. Please repost.
 Linear-systems/342078: what is the system by substitution answer to this problem 2x + y = 3 y = 5x - 11 1 solutions Answer 245131 by Fombitz(13828)   on 2010-09-13 16:08:44 (Show Source): You can put this solution on YOUR website!1. 2. Substitute eq. 2 into eq. 1, Back to eq. 2,
 test/341926: I beep hellp hope this works1 solutions Answer 245130 by Fombitz(13828)   on 2010-09-13 16:07:12 (Show Source): You can put this solution on YOUR website!It worked but you didn't ask a question. Please re-post.
 absolute-value/341661: Solve the inequality. Graph the soltion 1\4|x-3|+2<11 solutions Answer 245129 by Fombitz(13828)   on 2010-09-13 16:05:54 (Show Source): You can put this solution on YOUR website! No solution.
 Functions/342466: f(x)= X^2+2x^2 / (x-1)^21 solutions Answer 245126 by Fombitz(13828)   on 2010-09-13 16:01:58 (Show Source): You can put this solution on YOUR website! . . . What's the question?
 Quadratic_Equations/342464: Determine the nature of the solutions of the equation. x^2-14x+49=0 What does the equation have? One real solution, two non-real solutions, or two real solutions1 solutions Answer 245125 by Fombitz(13828)   on 2010-09-13 16:00:50 (Show Source): You can put this solution on YOUR website!Use the discriminant. There is one real solution (a double root). . . .