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Linear-systems/388489: Which is the graph of the system: y<=0, x<=0, x>=y, x+y>=-4 1 solutions Answer 274810 by Fombitz(13828)   on 2010-12-22 12:56:56 (Show Source): You can put this solution on YOUR website! Solved by pluggable solver: Plot Any Inequality Graphing function : . . Solved by pluggable solver: Plot Any Inequality Graphing function : . . Solved by pluggable solver: Plot Any Inequality Graphing function : . . Solved by pluggable solver: Plot Any Inequality Graphing function : . . . Putting all of the constraints together shows the triangular area marked by the circles below.

real-numbers/388472: a^2=81 1 solutions Answer 274788 by Fombitz(13828)   on 2010-12-22 10:47:30 (Show Source): You can put this solution on YOUR website!

Expressions-with-variables/388467: what is the value expression (-2)3(3)2 1 solutions Answer 274787 by Fombitz(13828)   on 2010-12-22 10:46:47 (Show Source): You can put this solution on YOUR website! I think you mean, or else it's

Radicals/388446: RATIONALIZE THE DENOMINATORS. ASSUME ALL EXPRESSIONS UNDER THE RADICALS ARE POSITIVE NUMBERS. 4-X(SQRT)/ 2 + x (SQRT). 1 solutions Answer 274786 by Fombitz(13828)   on 2010-12-22 10:45:31 (Show Source): You can put this solution on YOUR website! I'm assuming you mean, . . . . . .

Linear-equations/388468: Can you please solve this equation with a show of work? I need to use this as an example for others. Im my textbook they will show a break down but then the exercises to work on are different. 4x+5=3(x-1) 1 solutions Answer 274784 by Fombitz(13828)   on 2010-12-22 10:36:58 (Show Source): You can put this solution on YOUR website! <-- Distribute the on the right hand side. <-- Subtract from both sides <-- Subtract from both sides

Exponents/388469: If x=3,then 5x2is 1 solutions Answer 274782 by Fombitz(13828)   on 2010-12-22 10:34:36 (Show Source): You can put this solution on YOUR website!

Parallelograms/388240: If A (1,-2),B(3,6)And C(5,10) Are The Three Vertices Of Aparallelogram, Find Its 4th Vertex D.Also,Find The Angle Between The Diagonals AC And BD. 1 solutions Answer 274777 by Fombitz(13828)   on 2010-12-22 10:01:14 (Show Source): You can put this solution on YOUR website! To go from C to D, you move over 2 and up 4. To keep it a parallelogram, move that same distance from A to D. D:(,)+(,)=(,) . . . From the diagram, degrees Also, degrees, since So then the angle between the diagonals, , is, degrees

Triangles/388171: Find the measures of the sides of triangle ABC and clissify each triangle by its sides. A(5,4),B(3,-1),C(7,-1) 1 solutions Answer 274774 by Fombitz(13828)   on 2010-12-22 09:45:21 (Show Source): You can put this solution on YOUR website! . . . Use the distance formula to find the length of the sides, . . . . .

Vectors/388402: Not really sure how to approach this Find the volume of the figure bounded by the following planes. x + z = -3 10x - 3z = 22 4x - 9z = -38 y = -4 y = 10 If you can either help with how to approach this or an actual solution, that would be great ^^ 1 solutions Answer 274773 by Fombitz(13828)   on 2010-12-22 09:39:43 (Show Source): You can put this solution on YOUR website! Graph the x-z plane. Find the area of the triangle bounded by the lines. . . . Once you have the area, the volume is the area multiplied by the depth which is equal to . . . The shape is a triangular prism. . . .

Radicals/388243: Rationalize the denominators. assuming all expressions under rationals represents positive numbers. √3:(y^4)/√6:(x^4) 1 solutions Answer 274772 by Fombitz(13828)   on 2010-12-22 09:34:56 (Show Source): You can put this solution on YOUR website! What does the ":" stand for? Division (like a ratio)? Multiplication?

Circles/388452: Three circles of radii 2, 4, and 6 are tangent to each other externally. Find the area of the triangle formed by connecting their centers. 1 solutions Answer 274771 by Fombitz(13828)   on 2010-12-22 09:31:53 (Show Source): You can put this solution on YOUR website! The lengths of the sides of the triangle are the sums of the respective radii. Use Heron's formula, where Then,

Circles/388355: Line NO is tangent to the circle at N and the measure of arc LM is 56°. What is the measure of MNO? 1 solutions Answer 274770 by Fombitz(13828)   on 2010-12-22 09:28:28 (Show Source): You can put this solution on YOUR website! What is L? What is M? I'm assuming one is the center of the circle, the other is a point on the circle. What is the relationship between N and the point on the circle? Do you have a diagram?

logarithm/388397: 4. You have $760,000 in your bank account. The interest rate in your account is 5%. Solve for the following: 1 solutions Answer 274768 by Fombitz(13828)   on 2010-12-22 09:24:48 (Show Source): You can put this solution on YOUR website! Nothing followed. Please repost.

Linear_Equations_And_Systems_Word_Problems/388406: Solve the systems of equations x-y+2z=6 x-3y+z=8 2x-y-z=5 1 solutions Answer 274767 by Fombitz(13828)   on 2010-12-22 09:24:06 (Show Source): You can put this solution on YOUR website! [A]= [x]= [b]= . . [A][x]=[b] [x]=[A]inv[b] . . det[A]= Using matrix inversion, [A]inv= . . . [x]=

Geometry_Word_Problems/388447: circle has a diameter of 3.6 kilometers. Calculate the are of the circle, to the nearest hundredth 1 solutions Answer 274766 by Fombitz(13828)   on 2010-12-22 09:18:56 (Show Source): You can put this solution on YOUR website! Work that out to the desired accuracy. The units would be .

absolute-value/388413: algebra A= {3,4,5,6} B = {1,2,3,4,5,6,7,8,9,10} A={1,2,3,4,5,6} and b= 3,4,5,6,7,8,9,10} 1 solutions Answer 274765 by Fombitz(13828)   on 2010-12-22 09:17:55 (Show Source): You can put this solution on YOUR website! What's your question??

Trigonometry-basics/388309: Solve for triangle ABC is 1 solutions Answer 274763 by Fombitz(13828)   on 2010-12-22 09:11:39 (Show Source): You can put this solution on YOUR website! Use the sine rule, Then degrees Then using the law of sines again,

logarithm/388396: 3. Simplify the following expressions: a. X2* X4 b. Z8 / Z12 c. log4Y + log4Z d. log3Y - log3Z 1 solutions Answer 274760 by Fombitz(13828)   on 2010-12-22 09:01:47 (Show Source): You can put this solution on YOUR website! a) . . b) . . c) . . d) . .

Graphs/388431: Referring to the figure, write an equation of the line shown in the graph. Figure located at this link http://ppstest2.com/images2/AL5002.jpg 1 solutions Answer 274758 by Fombitz(13828)   on 2010-12-22 08:55:15 (Show Source): You can put this solution on YOUR website! First solve for the slope, . . . Once you have the slope, use the slope-intercept form of a line. Use either point to solve for . I'll use (0,-5). In this case, I didn't even need to know to solve. . . . Solve for and that's the equation of the line.

Graphs/388440: Referring to the figure, write the equation of the horizontal line through the point (0,3). Figure located at this cut & paste link http://ppstest2.com/images2/AL5005.jpg 1 solutions Answer 274757 by Fombitz(13828)   on 2010-12-22 08:52:17 (Show Source): You can put this solution on YOUR website! Horizontal lines have the form, In this case, when x=0, y=3 . .

Geometry_Word_Problems/388448: The base of a triangle is 5cm less then its height. Find the height and base if the triangle is 33cm2. I tried doing it but i always end up with -4h = 66. I don't know what i'm doing wrong! Thanks 1 solutions Answer 274755 by Fombitz(13828)   on 2010-12-22 08:50:44 (Show Source): You can put this solution on YOUR website! Two solutions but only the positive one is considered here, cm Then, cm

Polynomials-and-rational-expressions/388455: Can someone help me find GCF for 8x and 28x^3 1 solutions Answer 274754 by Fombitz(13828)   on 2010-12-22 08:48:05 (Show Source): You can put this solution on YOUR website!

Quadratic-relations-and-conic-sections/388449: Graph the parabola y=(x+1)^2-1 I found the vertex to be (-1,-1) axis is -1 and a=1 But I don't remember how to find the points. 1 solutions Answer 274753 by Fombitz(13828)   on 2010-12-22 08:47:21 (Show Source): You can put this solution on YOUR website! Which points? . . . Intercepts? Set solve for . Set solve for . . . . Points on the curve? Choose points equidistant from x=-1, solve for y. Example, if ,

Linear_Algebra/388462: x+y+z=23 xyz=396 x=? y=? z=? 1 solutions Answer 274751 by Fombitz(13828)   on 2010-12-22 08:44:26 (Show Source): You can put this solution on YOUR website! You only have two equations and three unknowns. You cannot solve for x, y, and z. You need a third equation to do that.

Trigonometry-basics/388306: Find 1 solutions Answer 274750 by Fombitz(13828)   on 2010-12-22 08:43:31 (Show Source): You can put this solution on YOUR website! Use the cosine rule, degrees

Percentage-and-ratio-word-problems/388296: A spinner is divided into eight congruent sections labeled S, P, I, N, 2, W, I, and N. A player wins by spinning a P or an N. In past fundraisers, about 400 people played this game each year. About how many of these 400 would be expected to win? 1 solutions Answer 274601 by Fombitz(13828)   on 2010-12-21 15:26:16 (Show Source): You can put this solution on YOUR website! . . .

Polynomials-and-rational-expressions/388297: (3c^d-d^3+1)8cd^2 1 solutions Answer 274600 by Fombitz(13828)   on 2010-12-21 15:24:22 (Show Source): You can put this solution on YOUR website!

Coordinate-system/388299: if you were plotting the point (0,16) on a coordinate graph, how would you plot it? 1 solutions Answer 274599 by Fombitz(13828)   on 2010-12-21 15:23:02 (Show Source): You can put this solution on YOUR website!

Angles/388285: what is the supplement of an angle that measures 87 degrees 1 solutions Answer 274590 by Fombitz(13828)   on 2010-12-21 14:48:50 (Show Source): You can put this solution on YOUR website! degrees

testmodule/388286: Find the minimum of function f(x) = (x+1)^3 - (x-1)^3 1 solutions Answer 274589 by Fombitz(13828)   on 2010-12-21 14:48:03 (Show Source): You can put this solution on YOUR website! Simplify, In vertex form, that would be, with a minimum value of,

Parallelograms/387821: how do you draw a non rectangular parallelogram? 1 solutions Answer 274583 by Fombitz(13828)   on 2010-12-21 14:24:31 (Show Source): You can put this solution on YOUR website! Draw two intersecting lines. . . . Then draw parallel lines to each of the intersecting lines.