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 Polynomials-and-rational-expressions/282459: How do I multiply (3m + 2) ( 4m^2 - m +2)?1 solutions Answer 205075 by rfer(12662)   on 2010-03-18 13:29:43 (Show Source): You can put this solution on YOUR website!12m^3-3m^2+6m+8m^2-2m+4 12m^3+5m^2+4m+4 use FOIL
 Equations/282265: 3x+2x=451 solutions Answer 204964 by rfer(12662)   on 2010-03-17 22:13:54 (Show Source): You can put this solution on YOUR website!3x+2x=45 5x=45 x=9
 Linear-systems/282237: three numbers have the sum 207. the second number is 9 more than the first, and the third is 3 less than the second number. find the three numbers.1 solutions Answer 204963 by rfer(12662)   on 2010-03-17 22:13:08 (Show Source): You can put this solution on YOUR website!x+x+9+x+6=207 3x+15=207 3x=192 x=64 x+9=73 x+6=70
 Quadratic_Equations/282242: solve the equation by finding square roots if necessary round to nearest 7x squared -8 = 20. can you show me the steps?1 solutions Answer 204962 by rfer(12662)   on 2010-03-17 22:07:26 (Show Source): You can put this solution on YOUR website!7x^2-8=20 add 8 7x^2=28 divide by 7 x^2=4 take sq rt x=2
 Inequalities/282260: Please help solve for a in m=a+b/21 solutions Answer 204961 by rfer(12662)   on 2010-03-17 22:04:04 (Show Source): You can put this solution on YOUR website!m=a+b/2 2m=a+b a=2m-b
 Numeric_Fractions/282254: A phone company charges 15cents per call plus 8cents per minute. Find the cost of a 20 minute phone call. 1 solutions Answer 204960 by rfer(12662)   on 2010-03-17 22:02:54 (Show Source): You can put this solution on YOUR website!.15+(.08*20)=\$3.10
 Rectangles/282247: the diagonal of a square is 16 cm. find the area1 solutions Answer 204959 by rfer(12662)   on 2010-03-17 22:00:26 (Show Source): You can put this solution on YOUR website!16^2=2s^2 =11.3 11.3^2=128 sq cm
 Numeric_Fractions/282251: solve 9x - 5 + 2x + 16 for x.1 solutions Answer 204958 by rfer(12662)   on 2010-03-17 21:57:08 (Show Source): You can put this solution on YOUR website!9x-5+2x+16 11x+11 11x=11 x=1
 Numeric_Fractions/282249: Factor 6ab + 9ac - 3a1 solutions Answer 204957 by rfer(12662)   on 2010-03-17 21:55:19 (Show Source): You can put this solution on YOUR website!3a(2b+3c-1)
 absolute-value/281985: which value is equivalent to 55.65-50.91 solutions Answer 204817 by rfer(12662)   on 2010-03-17 13:40:51 (Show Source): You can put this solution on YOUR website!4.75
 Circles/282016: the diameter of a circle painted by jane is 4 feet what is the length of it's radius?1 solutions Answer 204815 by rfer(12662)   on 2010-03-17 13:37:24 (Show Source): You can put this solution on YOUR website!r=2 ft
 Circles/281317: Backpackers who build campfires are advised to clear a 10ft-radius circle around the fire. How many square feet should be cleared?1 solutions Answer 204330 by rfer(12662)   on 2010-03-15 21:17:22 (Show Source): You can put this solution on YOUR website!a=pir^2 a=3.14*10^2 a=314 sq ft
 real-numbers/281257: Please answer this question for me if x is any real number, is x squared equal to x1 solutions Answer 204327 by rfer(12662)   on 2010-03-15 21:06:49 (Show Source): You can put this solution on YOUR website!1^2=1
 absolute-value/281273: how do I solve the problem [4x-12]+2 > or = 131 solutions Answer 204325 by rfer(12662)   on 2010-03-15 21:04:15 (Show Source): You can put this solution on YOUR website!4x-12+2>=13 4x>=27 x >= 6.75
 Polynomials-and-rational-expressions/281277: Amount of an investment. The amount of an investment of P dollars for t years at simple interest rate r is given by A = P + Prt. a) Rewrite this formula by factoring out the greatest common factor on the right-hand side. b) Find A if \$8300 is invested for 3 years at a simple interest rate of 15%.1 solutions Answer 204322 by rfer(12662)   on 2010-03-15 21:00:12 (Show Source): You can put this solution on YOUR website!A=P(1+rt) -------------- a=8300(1+.15*3) a=8300*1.45 a=\$12,035
 Triangles/281290: can you help on this question? here it is: a triangle has measures of 72 and 66. what is the measure of the other angle?1 solutions Answer 204319 by rfer(12662)   on 2010-03-15 20:53:42 (Show Source): You can put this solution on YOUR website!If what you posted are angles, 42 degrees is the answer.
 Linear-equations/281296: Determine whether (-7,1) is a solution of 9x-6y=-81 solutions Answer 204318 by rfer(12662)   on 2010-03-15 20:51:39 (Show Source): You can put this solution on YOUR website!it is not
 Linear-equations/281300: Graph the equation using the slope and the y intercept. y=9/8x + 61 solutions Answer 204316 by rfer(12662)   on 2010-03-15 20:49:24 (Show Source): You can put this solution on YOUR website!(0,6) (8,15)
 Graphs/281307: wHAT ARE THE VALUES FOR X IF F(X)=2?1 solutions Answer 204314 by rfer(12662)   on 2010-03-15 20:45:52 (Show Source): You can put this solution on YOUR website!what is the equation?
 Linear-equations/281298: collect like terms. 11r + 5s - 4r - 7s = _____1 solutions Answer 204313 by rfer(12662)   on 2010-03-15 20:45:15 (Show Source): You can put this solution on YOUR website!7r-2s
 Average/281306: How do you find the average out of 4,5,8,9,11,131 solutions Answer 204312 by rfer(12662)   on 2010-03-15 20:42:17 (Show Source): You can put this solution on YOUR website!(4+5+8+9+11+13)/6=8.33
 Money_Word_Problems/281303: At a going out of business sale, furniture is selling at 30% off the regular price. In addition, red-tagged items are reduced by an additional \$30. If Ramona purchased a red-tagged item and paid \$120, find its regular price. I came up with 0.3x - 30 = 120...how would you form this equation. Thanks a bunch! Alex1 solutions Answer 204311 by rfer(12662)   on 2010-03-15 20:40:28 (Show Source): You can put this solution on YOUR website!(120+30)/.7=214.28 120 + 30= THE PRICE AFTER THE 30% DISCOUNT 150 IS 70% OF THE ORIGINAL PRICE.
 Rational-functions/280708: A rectangular dog pen is constructed using a barn wall as one side and 27m of fencing for the other 3 sides. Find the dimensions of the pen that give the greatest area. 1 solutions Answer 204006 by rfer(12662)   on 2010-03-14 17:03:45 (Show Source): You can put this solution on YOUR website!27/3=9 m 9 by 9
 Expressions-with-variables/280639: solve by substitution method 4x+5y=19 x=59-9y1 solutions Answer 204004 by rfer(12662)   on 2010-03-14 16:58:43 (Show Source): You can put this solution on YOUR website!4(59-9y)+5y=19 236-36y+5y=19 -31y=-217 y=7 ---------------- x=-4
 Equations/280637: rain A and B are traveling in the same direction on parallel tracks. A is traveling at 80mph and train B at 100mph. A passes station at 2:20 am and B at 2:38am. what time will B catch up to A?1 solutions Answer 204003 by rfer(12662)   on 2010-03-14 16:54:31 (Show Source): You can put this solution on YOUR website!a is .3 hrs ahead approach speed is 20 mph a leads b by 24 miles 24/20=1.2 hrs=1 hr 12 min 2:38 + 1 hr 12 min = 3:50 am
 Linear-systems/280641: translate to an algebraic expression the product of 25% and some number1 solutions Answer 204000 by rfer(12662)   on 2010-03-14 16:48:44 (Show Source): You can put this solution on YOUR website!.25x
 Linear-equations/280642: use the intersept to graph the equation x+2y=41 solutions Answer 203999 by rfer(12662)   on 2010-03-14 16:46:55 (Show Source): You can put this solution on YOUR website!(4,0) (0,2)
 Quadratic_Equations/280652: Simplify: (3x^2 + 7y + 4xy – x^2) – (10y + 2(2xy) –3y + 3x(x) –1)1 solutions Answer 203998 by rfer(12662)   on 2010-03-14 16:44:32 (Show Source): You can put this solution on YOUR website!2x^2+7y+4xy-(7y+3x^2+4xy-1) 2x^2+7y+4xy-7y-3x^2-4xy+1 -x^2+1
 Rational-functions/280697: how to solve long division 1 solutions Answer 203997 by rfer(12662)   on 2010-03-14 16:33:27 (Show Source): You can put this solution on YOUR website!post a problem
 Polynomials-and-rational-expressions/280689: -9x x (10x - 8) Multiply this1 solutions Answer 203995 by rfer(12662)   on 2010-03-14 16:32:43 (Show Source): You can put this solution on YOUR website!-9x x (10x-8) -90x^3+72x^2
 Linear-equations/280679: Graph the following equation and identify the y- intercept y=x+3 tyraciajohnson@yahoo.com1 solutions Answer 203994 by rfer(12662)   on 2010-03-14 16:30:53 (Show Source): You can put this solution on YOUR website!y int is when x=0 y=3 (0,3) y int