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Fombitz answered: 13805 problems
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absolute-value/337666: Can you please walk me through the process to solve the following equation: 4-3(w-5) < -2w Thank you. 1 solutions Answer 242076 by Fombitz(13828)   on 2010-09-01 10:30:14 (Show Source): You can put this solution on YOUR website! It's the same procedure as you would do with an "=" sign with only minor differences. One of those minor differences, multiplication/division by a negative numbers changes the direction of the inequality.

Numbers_Word_Problems/337434: i am a two digit number. the sum of my digits is ten. ten and one is greater than the one digit 1 solutions Answer 242074 by Fombitz(13828)   on 2010-09-01 10:27:15 (Show Source): You can put this solution on YOUR website! Can you clarify what this means "ten and one is greater than the one digit"?

absolute-value/337665: Please help with this algebraic conumdrum as I'm having difficulty with slope intercept. Thank you. The line through (-1,-2) with slope 3/7. Write the equation for this line. Give the answer in slope-intercept form. 1 solutions Answer 242072 by Fombitz(13828)   on 2010-09-01 10:25:58 (Show Source): You can put this solution on YOUR website! Conundrum? There is a formula, you know. It was worked out hundreds of years ago, just use it. Use the point-slope form of a line and convert it to slope-intercept form, Now convert it to slope-intercept form to complete the problem.

Quadratic_Equations/337510: h(x) = -(x-2)2 . How do you graph this problem 1 solutions Answer 242068 by Fombitz(13828)   on 2010-09-01 10:23:39 (Show Source): You can put this solution on YOUR website! The equation is in vertex form, where (,) is the vertex. (,)=(,) The axis of symmetry is Pick points on opposite sides of the axis of symmetry and plot them. Plot those points, then draw the curve. . . .

Inverses/337473: The instructions states that y varies inversely with x, use the specified values to write an inverse variation equation that relates x and y, then find y when x=18. The questions are x=6,y=9 and x=2/3,y=12, how do i find the answers to these questions and what is a inverse variation equation? 1 solutions Answer 242065 by Fombitz(13828)   on 2010-09-01 10:17:08 (Show Source): You can put this solution on YOUR website! There is direct variation, where and there is inverse variation, where or So then solve for each k. or Complete the second one the same way.

Rational-functions/337475: F(x) + G(x) F(x)= x/x+1 G(x)= x^2 - 1 x/x+1 + x^2 -1 1 solutions Answer 242063 by Fombitz(13828)   on 2010-09-01 10:15:11 (Show Source): You can put this solution on YOUR website! Yes, but I think your teacher expects you to simplify. Use a common denominator,

Length-and-distance/337638: .Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour. How long will it be before they meet? How far will they have traveled? 1 solutions Answer 242062 by Fombitz(13828)   on 2010-09-01 10:11:27 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 337637

Length-and-distance/337637: Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour. How long will it be before they meet? How far will they have traveled? 1 solutions Answer 242061 by Fombitz(13828)   on 2010-09-01 10:11:00 (Show Source): You can put this solution on YOUR website! Rate*Time=DIstance . . . For Danny, For Elise, Find when hr minutes . . . For Danny, miles For Elise, miles

absolute-value/337659: I need to write the absolute value of the difference of m and -15 in numerical or algebraic expression. I can't figure it out, can you help? 1 solutions Answer 242059 by Fombitz(13828)   on 2010-09-01 10:08:27 (Show Source): You can put this solution on YOUR website! difference of and = absolute value of the difference=

Polynomials-and-rational-expressions/337661: Can you help me factor these three equations? Please and Thank you 1. 12x^2+18X 2. 3x^2-48 3. 9a^2-24ab+16b^2 1 solutions Answer 242057 by Fombitz(13828)   on 2010-09-01 10:07:20 (Show Source): You can put this solution on YOUR website! 1. . . . 2. . . . 3.

percentage/337484: Can you provide me with detail instructions how to construct four separate pie graphs- = 10%, 50%, 70%, 90%. I will await your prompt reply. Thank you. Victor James 5 1 solutions Answer 242055 by Fombitz(13828)   on 2010-09-01 10:05:06 (Show Source): You can put this solution on YOUR website! The procedures are the same for each pie except for one. Draw the circle. Break it into 10 equal pie slices. For 10%, shade 1 of the 10 since 1/10=10/100=10%. For 70%, shade 7 of the 10 since 7/10=70/100=70%. For 90%, shade 9 of the 10 since 9/10=90/100=90%. The easier one is 50%. Break the pie into two equal slices and shade 1 slice since 1/2=50/100=50%.

test/337547: Your question goes here. Write clearly! We are not mind readers, so be sure to ask a question that we can understand. 1 solutions Answer 242054 by Fombitz(13828)   on 2010-09-01 10:02:34 (Show Source): You can put this solution on YOUR website! PLease re-post.

Functions/337657: f(x)=7x+4 how to solve?! 1 solutions Answer 242052 by Fombitz(13828)   on 2010-09-01 09:53:34 (Show Source): You can put this solution on YOUR website! What are you solving for? is the equation of a line. . . . THere are no restrictions on the domain. Domain:(, )

Quadratic_Equations/337605: 8y²-72=0 1 solutions Answer 242051 by Fombitz(13828)   on 2010-09-01 09:52:56 (Show Source): You can put this solution on YOUR website!

Polynomials-and-rational-expressions/337508: x^3+8x^2+2x+16 1 solutions Answer 242050 by Fombitz(13828)   on 2010-09-01 09:50:50 (Show Source): You can put this solution on YOUR website! . . . What's the question?

Geometry_proofs/337598: Prove the nine-point circle. 1 solutions Answer 242049 by Fombitz(13828)   on 2010-09-01 09:49:41 (Show Source): You can put this solution on YOUR website! Here's a couple of links. That's a pretty complication construction and better handled this way. If you don't like those, then just search on nine-point circle. . . . http://mathworld.wolfram.com/Nine-PointCircle.html http://jwilson.coe.uga.edu/EMT668/EMT668.Folders.F97/Anderson/geometry/geometry1project/construction/construction.html

Rectangles/337655: rectangle having a lenght of 1 inches and a width of 4 inches 1 solutions Answer 242048 by Fombitz(13828)   on 2010-09-01 09:47:39 (Show Source): You can put this solution on YOUR website! OK, but what's the question?

test/337594: Solve r+6/5=r+8/7 1 solutions Answer 242047 by Fombitz(13828)   on 2010-09-01 09:47:12 (Show Source): You can put this solution on YOUR website! Multiply both sides by . Take it from there and solve for .

Numbers_Word_Problems/337617: Solve by elimination. -6x - 2y = -5 -12x - 4y = -10 1 solutions Answer 242046 by Fombitz(13828)   on 2010-09-01 09:42:51 (Show Source): You can put this solution on YOUR website! Multiply eq. 1 by -2 to eliminate y. Eq. 1 and eq. 2 are the same line (twice eq.1 equals eq. 2). This is a dependent system with an infinite number of solutions.

Quadratic_Equations/337618: Please help me transform this in standard form and find the value of a, b and c: x(3x-4x+5)=6 1 solutions Answer 242045 by Fombitz(13828)   on 2010-09-01 09:41:00 (Show Source): You can put this solution on YOUR website! What are a,b, and c? Coefficients of the quadratic equation? You can readily identify the coefficients in this form.

Numbers_Word_Problems/337625: Decide whether or not the ordered pair is a solution of the system. (1, -3) 2x + y = -1 3x + 2y = -3 1 solutions Answer 242044 by Fombitz(13828)   on 2010-09-01 09:38:50 (Show Source): You can put this solution on YOUR website! Plug in the values and see if the equations are satisfied. . . . . . . Take it from there and see if the right and left hand sides match for each. If they both do, then it's a good solution. Else, it's not a solution.

Angles/337628: what is the square root of 189 1 solutions Answer 242043 by Fombitz(13828)   on 2010-09-01 09:36:50 (Show Source): You can put this solution on YOUR website!

Average/337648: Going into the final exam, Tiffany has test scores of 80, 81, 73, 65 and 91. What score does she need on the final in order to end up with an average score of at least 80? The final counts double. 1 solutions Answer 242042 by Fombitz(13828)   on 2010-09-01 09:36:04 (Show Source): You can put this solution on YOUR website! She needs at least an 85.

Quadratic_Equations/337652: 2x2+9x+4=0 I could really use some help with this problem 1 solutions Answer 242040 by Fombitz(13828)   on 2010-09-01 09:34:26 (Show Source): You can put this solution on YOUR website! You could factor, complete the square, or use the quadratic formula. Factor this quadratic. Two solutions, use the zero product property. and Solve those two equations to find the zeros of your function.

Proportions/337651: If a single letter is drawn from the set {m,a,t,h,e,i,c,s} what is the probability that the letter drawn is a member of the set {m,a,t,h}? Can someone please help me with this I am completley lost on how to do this. I think that the probability would be 1/2 but I do not know how to explain it. Thank you! 1 solutions Answer 242039 by Fombitz(13828)   on 2010-09-01 09:32:34 (Show Source): You can put this solution on YOUR website! Total choices in the first set : 8 Choices that occur in second set : 4

Number-Line/337649: Which of 1, 2^1/2, 3^1/3, 4^1/4, 5^1/5 is largest? 1 solutions Answer 242038 by Fombitz(13828)   on 2010-09-01 09:31:16 (Show Source): You can put this solution on YOUR website! Take each number to the 30th power. . . . So then . . . So then . . . So then . . . Finally put it all together. From largest to smallest. . . .

Average/337644: How do you work out the average when you have a beginning total and an ending total? 1 solutions Answer 242037 by Fombitz(13828)   on 2010-09-01 09:17:35 (Show Source): You can put this solution on YOUR website! Average Total=(Beginning Total + Ending Total)/2

Probability-and-statistics/337646: Five balls are numbered 1 through 5 and placed in a bowl. Josh will randomly choose a ball from the bowl, look at its number and then put it back into the bowl. Then Josh will again randomly choose a ball from the bowl and look at its number. What is the probability that the product of the two numbers will be even and greater than 10? Express your answer as a common fraction. 1 solutions Answer 242035 by Fombitz(13828)   on 2010-09-01 09:16:29 (Show Source): You can put this solution on YOUR website! Look at all of the possible combinations and their products. There are 25 of them. 1 1 1 2 1 2 3 1 3 4 1 4 5 1 5 1 2 2 2 2 4 3 2 6 4 2 8 5 2 10 1 3 3 2 3 6 3 3 9 4 3 12 5 3 15 1 4 4 2 4 8 3 4 12 4 4 16 5 4 20 1 5 5 2 5 10 3 5 15 4 5 20 5 5 25 Of those 25, 10 have a product of 10 or greater.

Rational-functions/337597: I need a graph of a parabola with Vertex: (5/2,-25/4) Axis of symmetry: x=5/2. Any help would be greatly appreciated. 1 solutions Answer 242034 by Fombitz(13828)   on 2010-09-01 09:13:56 (Show Source): You can put this solution on YOUR website! You need more information. Using the vertex form, But you have no information regarding . Here are three plots with a=1,-2, and 3.2. . . .

Radicals/337595: Please help me solve this equation: . 1 solutions Answer 242033 by Fombitz(13828)   on 2010-09-01 09:07:27 (Show Source): You can put this solution on YOUR website!

Quadratic-relations-and-conic-sections/337643: Find the x-intercepts of the parabola with vertex (-7,45) and y-intercept (0,-200). write yiour anwser in this form : (x,y), (x2,y2). If necessary round to nearest hundredth 1 solutions Answer 242032 by Fombitz(13828)   on 2010-09-01 09:04:33 (Show Source): You can put this solution on YOUR website! Use the vertex form, Use the y-intercept to solve for . . . . and . . .