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Exponents-negative-and-fractional/145869: 3x^-2 1 solutions Answer 106461 by checkley77(12569)   on 2008-06-20 08:48:47 (Show Source): You can put this solution on YOUR website! 3x^-2 3/x^2

Exponents-negative-and-fractional/145793: 2(x^-5y^7)^-3 1 solutions Answer 106448 by checkley77(12569)   on 2008-06-19 22:24:08 (Show Source): You can put this solution on YOUR website! 2(x^-5y^7)^-3 2(Y^7/X^5)^-3 2(X^5/Y^7)^3 2(X^15/Y^21)

Geometry_Word_Problems/145846: The length of a rectangle is twice its width. If the perimeter of the rectangle is 30cm , find its area. 1 solutions Answer 106443 by checkley77(12569)   on 2008-06-19 22:10:58 (Show Source): You can put this solution on YOUR website! 2L+2W=30 L=2W 2(2W)+2W=30 4W+2W=30 6W=30 W=30/6 W=5 FOR THE WIDTH. L=2*5=10 FOR THE LENGTH PROOF: 2*5+2*10=30 30=30 5*10=50 FOR THE AREA.

Human-and-algebraic-language/145799: This question is from textbook college algebra blitzer The length of a retangular pool is 6 meters less than twice the width. If the pools perimeter is 126 meters, what are its dimensions? 1 solutions Answer 106409 by checkley77(12569)   on 2008-06-19 16:53:13 (Show Source): You can put this solution on YOUR website! L=2W-6 2L+2W=126 2(2W-6)+2W=126 4W-12+2W=126 6W=126+12 6W=138 W=138/6 W=23 M. FOR THE WIDTH L=2*23-6 L=46-6 L=40 M. FOR THE LENGTH. PROOF 2*40=2*23=126 80+46=126 126=126

Linear-systems/145803: how do I do 2-y^2=0 1 solutions Answer 106408 by checkley77(12569)   on 2008-06-19 16:49:46 (Show Source): You can put this solution on YOUR website! 2-y^2=0 subtract 2 -y^2=-2 multiply by -1 y^2=2 take the square root y=sqrt2 solve for sqrt2 y=1.414

decimal-numbers/145779: Of the five numbers, 2.2,2.02,2.002,2.0202,2.00202, the one that is the least is: Help me best way to get answer easily. Thank you sri 1 solutions Answer 106407 by checkley77(12569)   on 2008-06-19 16:44:51 (Show Source): You can put this solution on YOUR website! 2.20000 now move the decimal point to the right 5 places. 2.02000 | 2.00200 | 2.02020 | 2.00202 | ------------------------------- 220,000 202,000 200,200 the smallest. 202,020 200,202

Equations/145720: 140/3+2x/3 1 solutions Answer 106349 by checkley77(12569)   on 2008-06-18 19:04:37 (Show Source): You can put this solution on YOUR website! 140/3+2x/3 (140+2x)/3

Equations/145721: 1700+2x/3+140/3+2x/9= 1 solutions Answer 106346 by checkley77(12569)   on 2008-06-18 19:01:38 (Show Source): You can put this solution on YOUR website! 1700+2x/3+140/3+2x/9 2x/3+2x/9+140/3+1700 (3*2x+2x+3*140+9*1700)/9 (6x+2x+420+15,300)/9 (8x+15,720)/9

Polynomials-and-rational-expressions/145608: Perform the indicated operations: (x^2-11x+4)-(-2x^2+2x-6)-(x2+6x-5) 1 solutions Answer 106302 by checkley77(12569)   on 2008-06-18 09:48:56 (Show Source): You can put this solution on YOUR website! (x^2-11x+4)-(-2x^2+2x-6)-(x2+6x-5) x^2-11x+4+2x^2-2x+6-x^2-6x+5 2x^2-19x+15

Exponents-negative-and-fractional/145609: -4x^3 * 2y^-2 * 5y^5 * x^-8 1 solutions Answer 106301 by checkley77(12569)   on 2008-06-18 09:45:15 (Show Source): You can put this solution on YOUR website! -4x^3*2y^-2*5y^5*x^-8 -4*2*5x^(3-8)^(-2+5) -40x^-5y^3

Linear-systems/145663: Solve the ff. turn them to y form 1/3x=y+2 3x-2y+8=0 4x-10y=0 3/4x+2y=8 2/3y=-x/2-5/3x 1/2x+3/2x=2y+5-3y 1 solutions Answer 106300 by checkley77(12569)   on 2008-06-18 09:07:18 (Show Source): You can put this solution on YOUR website! 1/3x=y+2 y=x/3-2 ---------------------------- 3x-2y+8=0 -2y=-3x-8 y=-3x/-2-8/-2 y=3x/2+4 ----------------------------- 4x-10y=0 -10y=-4x y=-4x/-10 y=4x/10 y=2/5 --------------------------- 3/4x+2y=8 2y=-3x/4+8 y=-3x/8+8/2 y=-3x/8+4 --------------------------- I'll leave the rest for you to practice with.

Signed-numbers/145666: 5+4(2-6)-10+3= 1 solutions Answer 106299 by checkley77(12569)   on 2008-06-18 09:03:21 (Show Source): You can put this solution on YOUR website! 5+4(2-6)-10+3 5+4(-4)-7 5-16-7 5-23 -18 answer.

Linear-equations/145564: Complete the ordered pairs so that each is a solution for the given equation. 3x+4y=12 (0, ), ( ,3/4), ( ,0), (8/3, ) 1 solutions Answer 106226 by checkley77(12569)   on 2008-06-17 13:20:37 (Show Source): You can put this solution on YOUR website! 3x+4y=12 (0,3), (3,3/4), (4,0), (8/3,1)

Linear-equations/142812: - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection y = 2x + 3 and y = -x – 4 1 solutions Answer 106224 by checkley77(12569)   on 2008-06-17 13:16:43 (Show Source): You can put this solution on YOUR website! y = 2x + 3 y = -x – 4 NOW SUBTRACT. ---------------------------- 0=3X+7 3X=-7 X=-7/3 ANSWER. Y=-(-7/3)-4 Y=7/3-4 Y=(7-12)/3 Y=-5/3 ANSWER. PROOF: -5/3=2*-7/3+3 -5/3=-14/3+3 -5/3=(-14+9)/3 -5/3=-5/3

Human-and-algebraic-language/145572: Books and magazines. At Gwen’s garage sale, all books were one price, and all magazines were another price. Harriet bought four books and three magazines for $1.45, and June bought two books and five magazines for $1.25. What was the price of a book and what was the price of a magazine? 1 solutions Answer 106221 by checkley77(12569)   on 2008-06-17 13:06:01 (Show Source): You can put this solution on YOUR website! 4B+3M=1.45 2B+5M=1.25 MULTIPLY BY -2 & ADD. -4B-10M=-2.50 4B+3M=1.45 --------------------- -7M=-1.05 M=-1.05/-7 M=.15 FOR EACH MAGAZINE. 4B+3*.15=1.45 4B+45=1.45 4B=1.45-.45 4B=1.00 B=.25 FOR EACH BOOK. PROOF 2*25+5*.15=1.25 .50+.75=1.25 1.25=1.25

Rational-functions/145578: 1/2+7/y = 2+1/y A)y=3 B)y=4 C)y=-4 D)y=-3 1 solutions Answer 106219 by checkley77(12569)   on 2008-06-17 13:01:01 (Show Source): You can put this solution on YOUR website! 1/2+7/y = 2+1/y 7/y-1/y=2-1/2 6/y=3/2 3y=12 y=12/3 y=4 answer. proof: 1/2+7/4=2+1/4 2/4+7/4=8/4+1/4 9/4=9/4

Rational-functions/145579: (6r^2-7r-3/r^2-1)/ (4r^2-12r+9/r@-1) * (2r^2-r-3/3r^2-2r-1) A)(2r-3)^2/3r+1 B)r+1/r+1 C)r-1/r+1 D)1 1 solutions Answer 106218 by checkley77(12569)   on 2008-06-17 12:58:43 (Show Source): You can put this solution on YOUR website! (6r^2-7r-3/r^2-1)/ (4r^2-12r+9/r{@}-1) * (2r^2-r-3/3r^2-2r-1) I believe you have a mistake in your equation identified by the {} signs.

Quadratic_Equations/145463: please subtract the following rational expressions x+2 6 --- - --- x-4 x-4 x^2 -1 --- - --- x-1 x-1 4x+y 2x-2y ---- - ----- 2x+3y 2x+3y -3 2-x --- - --- x-5 x-5 1 solutions Answer 106207 by checkley77(12569)   on 2008-06-17 08:56:41 (Show Source): You can put this solution on YOUR website! x+2 6 --- - --- x-4 x-4 (x+2-6)/(x-4) (x-4)/(x-4)=1 answer. -------------------------------------------- x^2 -1 --- - --- x-1 x-1 (x^2-1)/(x-1) (x+1)(x-1)/(x-1) (x+1/(x-1) answer. -------------------------------------------------- 4x+y 2x-2y ---- - ----- 2x+3y 2x+3y (4x+y-2x+2y)/(2x+3y) (2x+3y)/4x+3y) answer. ----------------------------------- -3 2-x --- - --- x-5 x-5 (-3-2+x)/(x-5) (x-5)/(x-5)=1 answer.

Coordinate-system/145546: how will i plot and solve 2x-3y+6=0 1 solutions Answer 106206 by checkley77(12569)   on 2008-06-17 08:48:16 (Show Source): You can put this solution on YOUR website! 2x-3y+6=0 -3y=-2x-6 y=-2x/-3-6/-3 y=2x/3+2 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2x/3 +2).

Equations/145507: solve for y: 2/3y+k=j 1 solutions Answer 106154 by checkley77(12569)   on 2008-06-16 17:37:20 (Show Source): You can put this solution on YOUR website! 2/3y+k=j 2y/3+k=j 2y/3=j-k 2y=3(j-k) y=3/2(j-k)

expressions/145487: I can't for the life of me get to the right answer here. Can you help? 2A/3=8+4A, solve for A 1 solutions Answer 106151 by checkley77(12569)   on 2008-06-16 17:28:13 (Show Source): You can put this solution on YOUR website! 2A/3=8+4A 2A=3(8+4A) 2A=24+12A 2A-12A=24 -10A=24 A=24/-2 A=-2.4 ANSWER. PROOF: 2*-2.4/3=8+4*-2.4 -4.8/3=8-9.6 -1.6=-1.6

Exponents/145426: what is the answer to this question (-x2y5)(-3x4y7) 1 solutions Answer 106122 by checkley77(12569)   on 2008-06-16 07:27:23 (Show Source): You can put this solution on YOUR website! -x2y5 -3x4y7 ---------------- 3x^6y^12

Quadratic_Equations/145126: Plot the graphs of the following functions. f(x)=6x 1 solutions Answer 106073 by checkley77(12569)   on 2008-06-15 17:43:26 (Show Source): You can put this solution on YOUR website! f(x)=6x (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 6x).

Graphs/145249: Tutors: Thank You Textbook Hall & Winn (5a^-4b^5)(-2a^2b^10) 1 solutions Answer 106072 by checkley77(12569)   on 2008-06-15 17:41:09 (Show Source): You can put this solution on YOUR website! (5a^-4b^5) (-2a^2b^10) -------------------------- -10a^(-2)b^(15)

Expressions-with-variables/145393: solve each formula for the W variable if P=2L+2W 1 solutions Answer 106071 by checkley77(12569)   on 2008-06-15 17:37:05 (Show Source): You can put this solution on YOUR website! P=2L+2W 2W=P-2L W=P/2-2L/2 W=P/2-L

Linear_Equations_And_Systems_Word_Problems/145396: How to solve this word problem? 2 cars started off in the same direction at the same time, but the first car was going twice as fast as the second car. In 5 hrs, the first car was ahead of the second car by 275 miles. How fast was going the second car? 1 solutions Answer 106070 by checkley77(12569)   on 2008-06-15 17:34:23 (Show Source): You can put this solution on YOUR website! 5x=5(2x)-275 5x=10x-275 5x-10x=275 -5x=-275 x=-275/-5 x=55 mph for the slower/second car. proof: 5*55=10*55=-275 275=55-275 275=275

Quadratic_Equations/145127: Plot the graphs of the following functions. f(x)=3x - 2 1 solutions Answer 105983 by checkley77(12569)   on 2008-06-14 17:29:41 (Show Source): You can put this solution on YOUR website! f(x)=3x-2 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x -2).

Quadratic_Equations/145128: Plot the graphs of the following functions. f(x)=(1/2)x 1 solutions Answer 105982 by checkley77(12569)   on 2008-06-14 17:28:10 (Show Source): You can put this solution on YOUR website! f(x)=(1/2)x f(x)=x/2 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x/2).

Travel_Word_Problems/145310: This question is from textbook Lois leaves at 8:00am traveling at 35 mph, traveling in the opposite direction,Clark leaves at 815 a.m. traveling at 40 mph. At what time will they be 140 miles apart 1 solutions Answer 105981 by checkley77(12569)   on 2008-06-14 17:25:11 (Show Source): You can put this solution on YOUR website! 35*x+40(x-.25)=140 35x+40x-10=140 75x=150 x=150/75 x=2 hour after Lois leaves they will be 140 miles apart. proof: 35*2+40(2-.25)=140 70+40*1.75=140 70+70=140 140=140

Travel_Word_Problems/145312: This question is from textbook Lois leaves at 8:00am traveling at 35 mph, traveling in the opposite direction,Clark leaves at 815 a.m. traveling at 40 mph. At what time will they be 140 miles apart 1 solutions Answer 105980 by checkley77(12569)   on 2008-06-14 17:23:58 (Show Source): You can put this solution on YOUR website! 35*x+40(x-.25)=140 35x+40x-10=140 75x=150 x=150/75 x=2 hour after Lois leaves they will be 140 miles apart. proof: 35*2+40(2-.25)=140 70+40*1.75=140 70+70=140 140=140

expressions/145198: [3(-4)+6].(-3)Please break it down step by step in order of operations thanks 1 solutions Answer 105907 by checkley77(12569)   on 2008-06-13 20:22:47 (Show Source): You can put this solution on YOUR website! [3(-4)+6].(-3) [-12+6]*-3 [-6](-3) 18 answer