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# Recent problems solved by 'Alan3354'

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 Angles/699246: angle A is eight times larger than its supplement angle B . Find the measure of each angle 1 solutions Answer 431280 by Alan3354(30993)   on 2013-01-07 15:45:07 (Show Source): You can put this solution on YOUR website!angle A is eight times larger than its supplement angle B . Find the measure of each angle ------------------- A = 9B A + B = 180 9B + B = 180 B = 18 degs A = 162 degs
 Human-and-algebraic-language/699244: Triple a number, minus one is fifty. Triple the difference of a number and one is fifty. (I need the number form of those equations AND i need to know the difference between the equations and EXPLAIN. Thank you, zoe 1 solutions Answer 431279 by Alan3354(30993)   on 2013-01-07 15:43:39 (Show Source): You can put this solution on YOUR website!Triple a number, minus one is fifty. n = a number 3n - 1 = 50 3n = 51 n = 17 ------------------------ Triple the difference of a number and one is fifty. 3*(n - 1) = 50 n-1 = 50/3 n = 53/3 -------- Or 3*(1 -n) = 50, both 1-n and n-1 fit. 3*|n - 1| = 50 where |...| is absolute value
 Angles/699241: if an angle is 34 longer than its complement what is the measure of the smaller angle 1 solutions Answer 431277 by Alan3354(30993)   on 2013-01-07 15:38:00 (Show Source): You can put this solution on YOUR website!Angles are not longer or shorter. ------------------- don't take up so much space.
 Trigonometry-basics/699222: Please help me solve this equation; I have to find the exact value of cos(13pi/12) I have simplified it to cos (3pi/12+ 9pi/12) = cos(pi/4+3pi/4) But then I get stuck and don't know what to do from there. 1 solutions Answer 431274 by Alan3354(30993)   on 2013-01-07 15:32:38 (Show Source): You can put this solution on YOUR website!Please help me solve this equation; **** Not an equation, no equal sign. I have to find the exact value of cos(13pi/12) I have simplified it to cos (3pi/12+ 9pi/12) = cos(pi/4+3pi/4)***** -------------------------------------- = (4pi/12+ 9pi/12) = cos(pi/3+3pi/4) --------------------- Use cos(A+B) = cos(A)cos(B) - sin(A)sin(B) = cos(pi/3)*cos(3pi/4) - sin(pi/3)*sin(3pi/4) = (1/2)*(-sqrt(2)/2) - sqrt(3)/2)*(sqrt(2)/2) = -sqrt(2)/4 - sqrt(6)/4
 Radicals/698993: whats x^2=181 solutions Answer 431152 by Alan3354(30993)   on 2013-01-06 20:47:42 (Show Source): You can put this solution on YOUR website!whats x^2=18 --------- It's an equation.
 Coordinate-system/698977: what is y=2x+2 on a graph1 solutions Answer 431149 by Alan3354(30993)   on 2013-01-06 20:31:43 (Show Source): You can put this solution on YOUR website!what is y=2x+2 on a graph ------- It's a straight line.
 Polynomials-and-rational-expressions/698950: How do you solve rational equations?1 solutions Answer 431126 by Alan3354(30993)   on 2013-01-06 19:08:44 (Show Source): You can put this solution on YOUR website!How do you solve rational equations? ------- I solve them very well. Thx for asking.
 Polynomials-and-rational-expressions/698934: Alan, this problem only tells me to solve each equation? 1/a-7=3 When I look this problem up in my math book the answer is: a=22/3 I don't know how to solve for this equation?1 solutions Answer 431121 by Alan3354(30993)   on 2013-01-06 18:39:58 (Show Source): You can put this solution on YOUR website!Alan, this problem only tells me to solve each equation? 1/a-7=3 When I look this problem up in my math book the answer is: a=22/3 I don't know how to solve for this equation? ---------------------- this problem only tells me to solve each equation? 1/a-7=3 --------- It should say, "Solve for a." Not just solve. ---------- 1/a-7=3 ----------- Add 7 1/a = 10 Invert a = 1/10 ====================== If the problem is 1/(a-7) = 3 Invert a-7 = 1/3 Add 7 a = 7 + 1/3 a = 22/3 -------------------------- It's your responsibility to state the problem unambiguously. Parentheses are free, use them.
 Triangles/698938: 3/2=1/3m+2/3 1 solutions Answer 431118 by Alan3354(30993)   on 2013-01-06 17:45:42 (Show Source): You can put this solution on YOUR website!2x * x = 8/3x * x --------------- Do you have a question?
 Numeric_Fractions/698937: how do I solve this problem? 3/2=1/3m+2/31 solutions Answer 431117 by Alan3354(30993)   on 2013-01-06 17:44:42 (Show Source): You can put this solution on YOUR website!how do I solve this problem? 3/2=1/3m+2/3 ----------- Solve for what? ---- 3/2=1/3m+2/3 is not a problem, it's an equation.
 Exponents/698935: What is the answer to x^-11x+24=01 solutions Answer 431116 by Alan3354(30993)   on 2013-01-06 17:43:30 (Show Source): You can put this solution on YOUR website!What is the answer to x^-11x+24=0 ----------------- What is the exponent of x? -11x + 24? --------------- And, what is the question?
 logarithm/698924: How do I solve the following problem for X? Please exact or round to hundredths. 2 ln(x+3)=81 solutions Answer 431115 by Alan3354(30993)   on 2013-01-06 17:26:00 (Show Source): You can put this solution on YOUR website!How do I solve the following problem for X? Please exact or round to hundredths. 2 ln(x+3)=8 ------------ ln(x+3) = 4 x+3 = e^4 x = e^4 - 3 ------------ x = ~51.60
 test/698928: 1 solutions Answer 431112 by Alan3354(30993)   on 2013-01-06 17:22:23 (Show Source): You can put this solution on YOUR website!I'm gonna guess it's CATTLE.
 Quadratic_Equations/698887: A rectangular dog pen is to be fenced with 28 m of fencing. What is the maximum area and the width of this rectangle?1 solutions Answer 431111 by Alan3354(30993)   on 2013-01-06 17:07:04 (Show Source): You can put this solution on YOUR website!A rectangular dog pen is to be fenced with 28 m of fencing. What is the maximum area and the width of this rectangle? ---------------- 7 by 7 = 49 sq meters
 test/698917: How can u find the number of sides in an equiangular polygon by measuring one of its interior angle1 solutions Answer 431110 by Alan3354(30993)   on 2013-01-06 17:05:21 (Show Source): You can put this solution on YOUR website!How can u find the number of sides in an equiangular polygon by measuring one of its interior angle ---------------------------- The easiest way is to know that each Exterior angle = 360/# of sides. Exterior angel = 180 - Interior angle.
 Points-lines-and-rays/698900: Which point lies the farthest from the origin? A) (0,-7) B) (-3,8) C) (-4, -3) D) (5,1) I have plotted the points but I need to show my work on my packet and I don't know any other way other than to plot the points.1 solutions Answer 431108 by Alan3354(30993)   on 2013-01-06 16:55:26 (Show Source): You can put this solution on YOUR website!Which point lies the farthest from the origin? A) (0,-7) B) (-3,8) C) (-4, -3) D) (5,1) I have plotted the points but I need to show my work on my packet and I don't know any other way other than to plot the points. ------------------ The Origin is point (0,0) The distance from it is d = Find which is the largest. ---------------
 Linear_Equations_And_Systems_Word_Problems/698907: gragh that shows speed increasing and decreases over next two hours 1 solutions Answer 431107 by Alan3354(30993)   on 2013-01-06 16:50:43 (Show Source): You can put this solution on YOUR website!gragh that shows speed increasing and decreases over next two hours ------------- And? What graph? Do you have a question?
 Polynomials-and-rational-expressions/698909: SOLVING RATIONAL EQUATIONS AND INEQUALITIES: 1 ________ = 3 a-7 please show me how to work out this problem and solve it to get the answer. Thank you so much.1 solutions Answer 431106 by Alan3354(30993)   on 2013-01-06 16:49:34 (Show Source): You can put this solution on YOUR website!SOLVING RATIONAL EQUATIONS AND INEQUALITIES: 1 ________ = 3 a-7 please show me how to work out this problem and solve it to get the answer. Thank you so much. ------------------- Step 1, say what you want to do.
 Exponents/698906: log8^x/2=log8^x/log8^2 1 solutions Answer 431104 by Alan3354(30993)   on 2013-01-06 16:42:51 (Show Source): You can put this solution on YOUR website!log8^x/2=log8^x/log8^2 --------- Do you have a question?
 Points-lines-and-rays/698905: What is the length of the segment with endpoints A(1,7) and B(-3,-1)?1 solutions Answer 431103 by Alan3354(30993)   on 2013-01-06 16:36:59 (Show Source): You can put this solution on YOUR website!What is the length of the segment with endpoints A(1,7) and B(-3,-1)? ------------
 Linear-systems/698901: Solve by substitution: x=4y-9 x=y+31 solutions Answer 431102 by Alan3354(30993)   on 2013-01-06 16:35:57 (Show Source): You can put this solution on YOUR website!Solve by substitution: x=4y-9 x=y+3 ------------- Both sides = x, so they equal each other. 4y-9 = y+3
 test/698884: I have total of 100 feet in the,how many is chicken(y=2) and beef(x=4)1 solutions Answer 431100 by Alan3354(30993)   on 2013-01-06 16:12:04 (Show Source): You can put this solution on YOUR website!I have total of 100 feet in the,how many is chicken(y=2) and beef(x=4) ---------- I don't know.
 Quadratic-relations-and-conic-sections/698889: How to factor x^2-9y^2=1 and how to factor 9x^2-4y^2=361 solutions Answer 431099 by Alan3354(30993)   on 2013-01-06 16:09:32 (Show Source): You can put this solution on YOUR website!How to factor x^2-9y^2=1 and how to factor 9x^2-4y^2=36 ---------------- Equations are not factored, they're to be solved. Polynomials are factored.
 Systems-of-equations/698895: x+3y=4 -x+2y=-4 SOLVING SYSTEMS USING ELIMINIATION1 solutions Answer 431098 by Alan3354(30993)   on 2013-01-06 16:08:14 (Show Source): You can put this solution on YOUR website!x+3y=4 -x+2y=-4 SOLVING SYSTEMS USING ELIMINIATION [sic] ----------------- x+3y=4 -x+2y=-4 -------------- Add
 Exponents/698897: I can not remember how to do this. (5^11/4)^2/5 1 solutions Answer 431096 by Alan3354(30993)   on 2013-01-06 16:02:52 (Show Source): You can put this solution on YOUR website!I can not remember how to do this. (5^11/4)^2/5 ----------------- What is the exponent of 5? Is the external exponent 2? or 2/5?
 Probability-and-statistics/698896: HOW WOULD I FIND OUT THE STRATEGY TO THE MATH PROBLEM? WHAT IS THE AVERAGE OF 8,7,7,5,3,2,AND 2? 1 solutions Answer 431095 by Alan3354(30993)   on 2013-01-06 16:02:00 (Show Source): You can put this solution on YOUR website!HOW WOULD I FIND OUT THE STRATEGY TO THE MATH PROBLEM? WHAT IS THE AVERAGE OF 8,7,7,5,3,2,AND 2? --------------------- You might google "averages," or use any search engine. Or you could ask on this site.
 Systems-of-equations/698894: can you help me with this problem? i am solving using the substitution method y=3x+1 y=5x-31 solutions Answer 431093 by Alan3354(30993)   on 2013-01-06 15:58:39 (Show Source): You can put this solution on YOUR website!can you help me with this problem? i am solving using the substitution method y=3x+1 y=5x-3 ----------- y=3x+1 y=5x-3 ------------ If both RHS (Right Hand Sides) equal y, they equal each other.
 test/698872: I'm having trouble figuring out how to simplify 3square root -250x^6y^51 solutions Answer 431091 by Alan3354(30993)   on 2013-01-06 15:41:27 (Show Source): You can put this solution on YOUR website!I'm having trouble figuring out how to simplify 3square root -250x^6y^5 ----------- What sort of trouble?