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# Recent problems solved by 'Mathtut'

Mathtut answered: 3667 problems
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 Reduction-of-unit-multipliers/190407: use two unit multipliers to convert 1000 centimeters to meters 1 solutions Answer 142959 by Mathtut(3670)   on 2009-04-10 12:49:51 (Show Source):
 Percentage-and-ratio-word-problems/190489: This question is from textbook Elementary and Intermediate Algebra Solve M = b/3(c + d) for c1 solutions Answer 142957 by Mathtut(3670)   on 2009-04-10 12:42:06 (Show Source): You can put this solution on YOUR website!if this problem is : : :
 Inequalities/190442: 3<2-x<=5 solve the inequality1 solutions Answer 142956 by Mathtut(3670)   on 2009-04-10 12:38:07 (Show Source): You can put this solution on YOUR website!3<2-x<=5 : 1<-x<=3 : 1>x>=3.......divided all terms by negative 1....so inequality signs are reversed
 Square-cubic-other-roots/190480: Can you please help me solve this? square root of (5) times squre root of (r)1 solutions Answer 142955 by Mathtut(3670)   on 2009-04-10 12:34:49 (Show Source):
 Polynomials-and-rational-expressions/190477: Multiply -7x(x-2) 1 solutions Answer 142954 by Mathtut(3670)   on 2009-04-10 12:34:04 (Show Source): You can put this solution on YOUR website! -7x(x-2)=
 Square-cubic-other-roots/190481: Can you please help me solve this? fourth root of (3y) times fourth root of (7y^2)1 solutions Answer 142953 by Mathtut(3670)   on 2009-04-10 12:33:14 (Show Source):
 Inequalities/190487: I need to know exact steps on how to put an inequality into slope intercept form. It would help to have a few examples. y-2>2x+3 -2x+2y=-41 solutions Answer 142951 by Mathtut(3670)   on 2009-04-10 12:30:30 (Show Source): You can put this solution on YOUR website!slope intercept form is y=mx+b : y-2>2x+3 : y>2x+5.......added 2 to each side : -2x+2y=-4 : 2y=2x-4....added 2x to both sides : y=x-2......divided all terms by 2
 Square-cubic-other-roots/190485: Can you please help me solve this? I have to simplify each radical. fourth root of (y^12) over (16)1 solutions Answer 142950 by Mathtut(3670)   on 2009-04-10 12:27:42 (Show Source):
 Exponents/190456: Hello, I could not find anything on the site that resembled this problem, could use assistance. t^(2)/(3)=4 Thanks for the help in advance.1 solutions Answer 142931 by Mathtut(3670)   on 2009-04-10 01:19:27 (Show Source): You can put this solution on YOUR website! : t=+-
 Square-cubic-other-roots/190431: simplify: 5 square root of 18 divided by 2 square root of 51 solutions Answer 142930 by Mathtut(3670)   on 2009-04-10 01:11:53 (Show Source):
 Quadratic_Equations/190437: This question is from textbook Elementary and intermediate algebra Is it possible for a quadratic equation to have no real solution? give an example of a quadratice polynomial equation that has no real number as its solution. Explain your answer1 solutions Answer 142929 by Mathtut(3670)   on 2009-04-10 01:08:07 (Show Source): You can put this solution on YOUR website!yes........if Discriminant is <0 D= : has no real roots : D=9-4(1)(10)=-31
 Polynomials-and-rational-expressions/190330: Says to factor 2x^5+24x^4+54x^31 solutions Answer 142846 by Mathtut(3670)   on 2009-04-09 11:02:27 (Show Source):
 Polynomials-and-rational-expressions/190227: -11mn+12m^2+2n^21 solutions Answer 142825 by Mathtut(3670)   on 2009-04-09 01:09:48 (Show Source):
 Quadratic_Equations/190232: This question is from textbook Algebra 2 How do you solve this problem? and I need answer too1 solutions Answer 142824 by Mathtut(3670)   on 2009-04-09 01:04:07 (Show Source): You can put this solution on YOUR website!tutors have no access to books or problems .. Please submit actual problem...thanks Mathtut
 Equations/190303: Hi! I need some help in performing this indicated operation and simplifying it: (a + 1)/2 - (a - 1)/2 thanks!1 solutions Answer 142823 by Mathtut(3670)   on 2009-04-09 01:02:38 (Show Source): You can put this solution on YOUR website!(a+1-a+1)/2 = 2/2 = 1
 Polynomials-and-rational-expressions/190290: Factor -t^2-14t-451 solutions Answer 142800 by Mathtut(3670)   on 2009-04-08 23:04:27 (Show Source):
 Polynomials-and-rational-expressions/190200: Factor the trinomial a^2-5ab+6b^21 solutions Answer 142750 by Mathtut(3670)   on 2009-04-08 16:30:41 (Show Source):
 Money_Word_Problems/190198: One man received 15% more than another man when they shared an inheritance of \$4,300. How much did each man receive?1 solutions Answer 142748 by Mathtut(3670)   on 2009-04-08 16:28:49 (Show Source): You can put this solution on YOUR website!let one man be x and the other man x+.15x : x+x+.15x=4300 : 2.15x=4300 : x=\$2000 : x+.15x=\$2300
 Polynomials-and-rational-expressions/190199: Factor the trinomial x^2-6x-7 1 solutions Answer 142747 by Mathtut(3670)   on 2009-04-08 16:25:47 (Show Source):
 Polynomials-and-rational-expressions/190204: Factor the trinomial. If the trinomial contains a GCF other than 1, factor out the GCF first 2x^2+20x+481 solutions Answer 142746 by Mathtut(3670)   on 2009-04-08 16:24:55 (Show Source):
 Polynomials-and-rational-expressions/190202: Factor the trinomial. If the trinomial contains a GCF other than 1, factor out the GCF first 2x^2+20x+481 solutions Answer 142745 by Mathtut(3670)   on 2009-04-08 16:23:49 (Show Source):
 Polynomials-and-rational-expressions/190201: Factor the trinomial 2x^2+20x+481 solutions Answer 142744 by Mathtut(3670)   on 2009-04-08 16:22:02 (Show Source):
Equations/190172: 2x+3x^2=50
1 solutions

Answer 142739 by Mathtut(3670)   on 2009-04-08 13:58:00 (Show Source):
You can put this solution on YOUR website!

 Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc) Quadratic equation (in our case ) has the following solutons: For these solutions to exist, the discriminant should not be a negative number. First, we need to compute the discriminant : . Discriminant d=604 is greater than zero. That means that there are two solutions: . Quadratic expression can be factored: Again, the answer is: 3.7627352424815, -4.42940190914817. Here's your graph:

 Percentage-and-ratio-word-problems/190177: 4z2+13z+3 Factor each polynomial the 2 is z to the 2nd power1 solutions Answer 142736 by Mathtut(3670)   on 2009-04-08 13:55:57 (Show Source):
 Percentage-and-ratio-word-problems/190175: Factor each polynomial m2-mn-42 m is m to the 2nd power1 solutions Answer 142735 by Mathtut(3670)   on 2009-04-08 13:54:23 (Show Source): You can put this solution on YOUR website! I assume that is not 42 :
 Percentage-and-ratio-word-problems/190176: Factor each polynomial pq+6p2-q2 p2 and q2 are powers. there to the 2nd power1 solutions Answer 142732 by Mathtut(3670)   on 2009-04-08 13:51:50 (Show Source):
 real-numbers/190160: 7≤4x-2≤-11 solutions Answer 142730 by Mathtut(3670)   on 2009-04-08 13:49:27 (Show Source): You can put this solution on YOUR website!7≤4x-2≤-1 : 9<= 4x <=1 : (9/4)<= x <=(1/4)
 Percentage-and-ratio-word-problems/190174: Factor each polynomial -14+3a2-a 2 is a power, so its a to the 2nd power1 solutions Answer 142728 by Mathtut(3670)   on 2009-04-08 13:46:50 (Show Source):
 Linear-equations/190103: Find an equation of the line having the given slope and containing the given point. Express your answer in the form of y=mx+b. m=0,(0,-4)1 solutions Answer 142671 by Mathtut(3670)   on 2009-04-08 00:04:16 (Show Source): You can put this solution on YOUR website!y+4=0(x-0) : y=-4
 Geometry_Word_Problems/190114: find the area of an equiangular triangle, whose perimeter is 241 solutions Answer 142670 by Mathtut(3670)   on 2009-04-08 00:03:02 (Show Source): You can put this solution on YOUR website!lets call one side x. all sides are equal so the perimeter is 3x : 3x=24 : x=8 : height= : :
 Linear-equations/190117: Find an equation of the line having the given slope and containing the given point. m=4/5, (4,-9)1 solutions Answer 142669 by Mathtut(3670)   on 2009-04-07 23:54:33 (Show Source): You can put this solution on YOUR website!y+9=(4/5)(x-4) : y+9=(4/5)x-16/5 : 5y+45=4x-16.........multiplied all terms by 5 : 4x-5y=61