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# Recent problems solved by 'Fombitz'

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 test/326469: Suppose that you are drawing cards from a set of 6 cards, the colors of which are red, blue, orange, yellow, pink, and green. What is the probability of drawing a red card followed by a blue card without replacement? 1 solutions Answer 233732 by Fombitz(13828)   on 2010-07-28 14:57:01 (Show Source): You can put this solution on YOUR website!P(R)= P(B)= P(R then B)=
 Trigonometry-basics/326467: Three forces with magnitudes of 250 ibs 60degrees N of E, 100 ibs 30degrees N of W, and 200 ibs S act on an object. Find the direction and magnitude of the resultant force. I have no clue how to even begin a problem like this, thank you for taking the time to look at this.1 solutions Answer 233731 by Fombitz(13828)   on 2010-07-28 14:55:12 (Show Source): You can put this solution on YOUR website!First pick a coordinate system. Let North be positiive y. Let East be positive x. Then find the x,y components of each force. "250 lbs 60 degrees N of E"=250(cos(60),sin(60))=(125,216.5) "100 lbs 30 degrees N of W"=100(cos(150),sin(150))= (-86.6,50) "200 lbs S"=200(0,-1)=(0,-200) Then sum the x and y components to get the resultant. (Fx,Fy)=(125,216.5)+(-86.6,50)+(0,-200) (Fx,Fy)=(38.4,66.5) You can find the resultant magnitude and direction, . . . 76.8 lbs 60 degrees North of East. act on an object. Find the direction and magnitude of the resultant force.
 Trigonometry-basics/326461: Convert the following polar coordinates into rectangular coordinates. (-2, pi/4) Thanks for looking at this.1 solutions Answer 233730 by Fombitz(13828)   on 2010-07-28 14:48:04 (Show Source): You can put this solution on YOUR website!Are these polar coordinates in magnitude, angle format? Negative magnitudes are not allowed. They are the square root of a sum of squares. Please re-post.
 Polynomials-and-rational-expressions/326462: 4a^2-196=01 solutions Answer 233729 by Fombitz(13828)   on 2010-07-28 14:45:55 (Show Source): You can put this solution on YOUR website! Two solutions" ,
 Expressions-with-variables/326299: Use completing the square to solve the following equation. (Enter solutions from smallest to largest. If the solutions are complex, enter them from smallest to largest value of the imaginary part.) -6=2x^2-13x1 solutions Answer 233728 by Fombitz(13828)   on 2010-07-28 14:42:12 (Show Source): You can put this solution on YOUR website! . . .
 Travel_Word_Problems/326459: If a train leaves Salt Lake City going 70 Miles per hour, and another leaves NY going 80 miles per hour, where do they pass each other?1 solutions Answer 233727 by Fombitz(13828)   on 2010-07-28 14:39:03 (Show Source): You can put this solution on YOUR website!What distance are you using for the distance between Salt Lake City and NY?
 Radicals/326301: 9x^-6xy +y^-81 factored--how to simplify1 solutions Answer 233725 by Fombitz(13828)   on 2010-07-28 14:37:53 (Show Source): You can put this solution on YOUR website! Any hints as to what you're looking for in terms of simplification??
test/326326: graph the inequality on a plane
x+y<2
1 solutions

Answer 233723 by Fombitz(13828)   on 2010-07-28 14:35:40 (Show Source):
You can put this solution on YOUR website!

Graph the line

Pick a point not on the line.
(0,0) looks good.
Check the inequality.

True
(0,0) is in the solution region.
 Solved by pluggable solver: Plot Any Inequality Graphing function :

 test/326323: A bank offer two bank plan. The anywhere plan charge 30 cent per check. the Accucheck plan cost \$1.36 a month plus 22 cent per check. for what number of checks would the Accucheck plan cost less than the Anywhere plan? IS IT a 17 or more b less than 17 check c more than 17 checks d 17 check 1 solutions Answer 233720 by Fombitz(13828)   on 2010-07-28 14:33:06 (Show Source): You can put this solution on YOUR website!Find the point when, Anywhere>Accucheck . . . c) is the correct answer.
 test/326325: solve the system of the equations by graphing than classify the system 2x-y=8 2x+3y=0 what is the solution of the system is the system consistent or inconsistent is the system dependent or independent1 solutions Answer 233718 by Fombitz(13828)   on 2010-07-28 14:30:51 (Show Source): You can put this solution on YOUR website! . . . . . . . . . . . . Looks like (3,-2) is a solution. Verify by using both equations. TRUE . . . TRUE . . There is one solution so the system is consistent and independent.
 Volume/326458: find the polymomial that represents the volume of a cube is each side measures x+61 solutions Answer 233717 by Fombitz(13828)   on 2010-07-28 14:26:07 (Show Source): You can put this solution on YOUR website!The volume of a cube given the measure of side s is,
 Miscellaneous_Word_Problems/326430: A farmer raises wheat and corn on 430 acres of land. He wants to plant 62 more acres of wheat than corn. How many acres of each should he plant? Thanks for your help. jkng07@ca.rr.com1 solutions Answer 233716 by Fombitz(13828)   on 2010-07-28 14:25:10 (Show Source): You can put this solution on YOUR website! Substitute eq. 2 into eq.1, SO then, . . . 246 acres of wheat, 184 acres of corn
 Linear-equations/326437: what is the slope of the line 5x-3y=15? F) 5/3 G) -5/3 H) 5 I) -51 solutions Answer 233715 by Fombitz(13828)   on 2010-07-28 14:22:26 (Show Source): You can put this solution on YOUR website!5x-3y=15 Convert to slope-intercept form, . . .
 Number-Line/326450: I have a number line with 13 tick(tallies [places for numbers) I have to make up an appropriate scale to graph the following numbers. {-7 , -2.5 , -1.5 , 0 , 6 , 9 } THANKS SOOO MUCH! Bella.1 solutions Answer 233714 by Fombitz(13828)   on 2010-07-28 14:21:10 (Show Source): You can put this solution on YOUR website!Your values range from -7 to 9, that's 16 spots. You have 13 ticks so you can't have a spacing of 1. Why don't you start at -12 and have a spacing of 2. (-12,-10,-8,-6,-4,-2,0,2,4,6,8,10,12) Then you'll be able to fit all of your data.
 test/326455: solve each system by substitution x+3y=2 -x+y=11 solutions Answer 233713 by Fombitz(13828)   on 2010-07-28 14:18:24 (Show Source): You can put this solution on YOUR website!1. 2. From eq. 2, Substitute in eq. 1, Then from above,
 Equations/326432: L*(1+p)^(12*z)=R*(1+r)^(z-1)*D*((C^z-1)/(C-1)). how do I solve this for z??1 solutions Answer 233711 by Fombitz(13828)   on 2010-07-28 14:02:28 (Show Source): You can put this solution on YOUR website! Take the log of both sides. Then simplify Remember I'll do the left hand side to get you started. Gather all the z terms on one side, all the constant terms on the other side. You'll end up with a fraction with many log terms in the numerator and denominator.
 Quadratic_Equations/326433: r^2-9=0 how would you slove this?1 solutions Answer 233710 by Fombitz(13828)   on 2010-07-28 13:54:54 (Show Source): You can put this solution on YOUR website! Factoring, Two solutions: . . . . Directly,