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# Recent problems solved by 'Fombitz'

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 Functions/366482: f(x)=x/4x-71 solutions Answer 261193 by Fombitz(13828)   on 2010-11-05 11:31:15 (Show Source):
 Matrices-and-determiminant/366526: what is the awnser for 3x-3y=21 2x-2y=101 solutions Answer 261191 by Fombitz(13828)   on 2010-11-05 11:24:20 (Show Source): You can put this solution on YOUR website![A]= [x]= [b]= . . . The determinant of [A] is zero. The two lines are parallel, there is no solution. . . .
 Equations/366528: what number should be added to complete the square of the expression x^2-6x?1 solutions Answer 261190 by Fombitz(13828)   on 2010-11-05 11:20:48 (Show Source): You can put this solution on YOUR website!(1/2) of the x-coefficient, squared. . . .
 Miscellaneous_Word_Problems/366524: what two numbers when added together equal -15 but multiplied together equal 225?1 solutions Answer 261189 by Fombitz(13828)   on 2010-11-05 11:19:44 (Show Source): You can put this solution on YOUR website!1. 2. From eq. 2, Substitute into eq. 1, Use the quadratic formula, Then using eq. 1, So the two numbers are, and
 Expressions-with-variables/366484: 8,-16,-12,-3 y-8>2y-4 is 8 a solution is -16 a solution is-12 a solution is -3 a solution1 solutions Answer 261188 by Fombitz(13828)   on 2010-11-05 11:11:29 (Show Source): You can put this solution on YOUR website!Substitute for and find out. I'll do one, you do the rest. . . . False, so it's not a solution.
 Complex_Numbers/366511: IN THE RIGHT TRIANGLE FIND THE LENGTH OF THE SIDE NOT GIVEN USE A CALCULATOR TO FIND AN APPROXIMATION TO THE DECIMAL PLACES. A=3 B=5 THE VALUE OF C IS (ROUND TO NEAREST THOUSANDTH)1 solutions Answer 261187 by Fombitz(13828)   on 2010-11-05 11:09:38 (Show Source): You can put this solution on YOUR website! Use a calculator to get the appropriate decimal places.
 Quadratic_Equations/366485: A parabola with an equation of the form y = ax^2 + bx + c has the point (-2, 1) as its vertex. If (-4, 5) also lies on the parabola, which of the following is another point on this parabola? (A) (-4, 3) (B) (-1, 3) (C) (0, 5) (D) (2, 1) (E) (4, 5)1 solutions Answer 261186 by Fombitz(13828)   on 2010-11-05 11:08:06 (Show Source): You can put this solution on YOUR website!Since the vertex occurs at (,), the line of symmetry is . Since (,) is a point on the line, find the x value equidistant from the line of symmetry. The x-distance from (,) to the line of symmetry is . Then add to the x position of the line of symmetry x position to get the point symmetric to (,). . . (,) is another point on the parabola. . . .
 Sequences-and-series/366489: If 3, 6, 12, 2y + 6 is a geometric sequence, what is the value of y?1 solutions Answer 261185 by Fombitz(13828)   on 2010-11-05 11:00:50 (Show Source): You can put this solution on YOUR website!Look at the differences between terms, The next difference should be
 Expressions-with-variables/366472: 5/2x+1/4x=9/4+x1 solutions Answer 261184 by Fombitz(13828)   on 2010-11-05 10:58:30 (Show Source):
 Expressions-with-variables/366470: g(x)=6/7-8x 1 solutions Answer 261183 by Fombitz(13828)   on 2010-11-05 10:55:43 (Show Source):
 Graphs/366497: 7x + -2y = 14 1 solutions Answer 261176 by Fombitz(13828)   on 2010-11-05 10:41:16 (Show Source): You can put this solution on YOUR website! . . .
 Equations/366500: Given the equation y = 4x + 4, predict the 100th term. 1 solutions Answer 261174 by Fombitz(13828)   on 2010-11-05 10:40:03 (Show Source): You can put this solution on YOUR website!100th term? How do you mean? You have an equation for a straight line. . . .
 Numeric_Fractions/366514: I am taking classes with the University of Phoenix and this semester I have algebra. The problems is. -2/7x=6/35. I know that you need to multiply both sides by -7/2, and I know that the answer should be -42/70, but they want me to simplify the answer and I just don't undersand where this magical number is supposed to come from. Help!!!!1 solutions Answer 261173 by Fombitz(13828)   on 2010-11-05 10:38:43 (Show Source): You can put this solution on YOUR website! and both have and as factors which means you can simplify. . . .
 Evaluation_Word_Problems/366434: Sove the logarithmic equation. ln(x+1)-ln(x-2)=ln5 1 solutions Answer 261153 by Fombitz(13828)   on 2010-11-05 07:37:10 (Show Source):
 Distributive-associative-commutative-properties/366468: solve for d: 3/4(5-d)=101 solutions Answer 261152 by Fombitz(13828)   on 2010-11-05 07:34:16 (Show Source): You can put this solution on YOUR website! Now solve for .
 test/366223: http://img258.imageshack.us/img258/6640/factor.jpg1 solutions Answer 261096 by Fombitz(13828)   on 2010-11-04 23:19:50 (Show Source):
 expressions/366239: 30=5(r/5-3)1 solutions Answer 261094 by Fombitz(13828)   on 2010-11-04 23:17:22 (Show Source):
 Expressions-with-variables/366206: what is three x to the fourth power when x equals 51 solutions Answer 261093 by Fombitz(13828)   on 2010-11-04 23:16:04 (Show Source):
 Polynomials-and-rational-expressions/366177: Solve. 6z3 – 27z2 + 12z = 0 1 solutions Answer 261092 by Fombitz(13828)   on 2010-11-04 23:14:52 (Show Source): You can put this solution on YOUR website! Two solutions: . .
 Trigonometry-basics/366199: How Do I Sketch The function: y=4 Sin (2x+(pi/6))-31 solutions Answer 261091 by Fombitz(13828)   on 2010-11-04 23:11:40 (Show Source):
 Expressions-with-variables/366405: factor 49y^2-25x^21 solutions Answer 261090 by Fombitz(13828)   on 2010-11-04 23:09:22 (Show Source):
 Equations/366270: 3x+4/x-2 = 51 solutions Answer 261089 by Fombitz(13828)   on 2010-11-04 23:07:08 (Show Source):
 Functions/366345: f(x)=2x^2-3x1 solutions Answer 261088 by Fombitz(13828)   on 2010-11-04 23:04:47 (Show Source): You can put this solution on YOUR website! . . . What's the question??
 test/366403: Solve 3x+8y=26 solve for x1 solutions Answer 261087 by Fombitz(13828)   on 2010-11-04 23:03:36 (Show Source):
 Geometry_Word_Problems/366398: The circle has an area of 100 square meters. If the radius of the circle is 5x+1 find the value of x in meters1 solutions Answer 261086 by Fombitz(13828)   on 2010-11-04 23:02:51 (Show Source):
 Exponents/366187: Simplify the expression if possible. e^-6ln(t)1 solutions Answer 260944 by Fombitz(13828)   on 2010-11-04 16:34:19 (Show Source):
 Probability-and-statistics/366188: What is the probbility when drawing 3 queens in a row from a standard deck of cards when the drawn card is returned to the deck each time1 solutions Answer 260943 by Fombitz(13828)   on 2010-11-04 16:32:34 (Show Source): You can put this solution on YOUR website! . . .
 Polynomials-and-rational-expressions/366191: what is the answer to s/6- 2/9=01 solutions Answer 260940 by Fombitz(13828)   on 2010-11-04 16:31:08 (Show Source):
 Length-and-distance/366114: Evening Everybody Stuck on this question. (trying to get back in to the swing of things so i can enrol on a course) i) Given that F.r is the work done by a force F in moving a body through displacement r. Find the work done by the force F= 3i+7k. if it causes a body to move from the point A with coordinates (1,1,2) to the point B with coordinates (7,3,5) ii) Obtain unit vectors in each of the directions of f=i+j+3k and s=2i-j+k. Hence show that 48/sqrt66 joules is the work done when a force of magnitude 6 newtons in the direction f moves its point of application a distance 2 metres parallel to s . Really appreciate help on this.1 solutions Answer 260939 by Fombitz(13828)   on 2010-11-04 16:29:23 (Show Source): You can put this solution on YOUR website!Find =(,,)-(,,)=(,,) =(,,)*(,,)= . . . =(,,) . . =(,,) . . =(,,) . . =(,,) . . =(,,) . . =(,,) . . which is equivalent to