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33.75Let:Length = 6xWidth = 2xPerimeter = 2 * Length + 2 * Width90 = (2 * 6x) + (2 * 2x)90 = 12x + 4x90 = 16x16x = 90x/16 = 90/16x = 45/8x = 5.625Subst x = 5.625 to Length = 6xLength:= 6x= 6 * 5.625= 33.75thus, length of the longest side of a rectangle is 33.75.
6x + 5 = 95 - 3x The main goal is to get "x" by itself. So you can first subtract 5 from both sides because whatever you do on one side of the equation, you do to the other side. 6x = 90 - 3x Next add 3x on both sides. 9x = 90 Last divide by 9 on both sides. x = 10
-6x^2 - 78x - 252 Improved answer: -6x+6x+7 When simplified = 7
There is no possible value of 'x' for which (6x-2) can be equal to (6x-12).
10(x - 3)2 = 10(x2 - 6x + 9) = 10x2 - 60x + 90 [ 10(x - 3) ]2 = 100(x2 - 6x + 9) = 100x2 - 600x + 900
8x - 2x = 90 so 6x = 90 so x = 15
33.75Let:Length = 6xWidth = 2xPerimeter = 2 * Length + 2 * Width90 = (2 * 6x) + (2 * 2x)90 = 12x + 4x90 = 16x16x = 90x/16 = 90/16x = 45/8x = 5.625Subst x = 5.625 to Length = 6xLength:= 6x= 6 * 5.625= 33.75thus, length of the longest side of a rectangle is 33.75.
6x + 5 = 95 - 3x The main goal is to get "x" by itself. So you can first subtract 5 from both sides because whatever you do on one side of the equation, you do to the other side. 6x = 90 - 3x Next add 3x on both sides. 9x = 90 Last divide by 9 on both sides. x = 10
The GCF is 6x.
-2
-6x^2 - 78x - 252 Improved answer: -6x+6x+7 When simplified = 7
1+6x+6x+8 1+ 12x +8 12x + 9 = 21 + x
6x - 9 = 21 6x = 21 + 9 6x = 28 x = 28/6 Reduce to: x = 14/3
There is no possible value of 'x' for which (6x-2) can be equal to (6x-12).
-6x = 2y - 120 -2y -2y -2y - 6x = -120 +6x +6x -2y = 6x - 120 -2y/-2 = 6x/-2 - 120/-2 y = -3x + 60
d2 [6x]d3[6x]d2[6x]d1[6x]d2[6x]d3[6x]d2[3x]d1[3x]d0[3x]
d/dx (ln(6x)) = (d/dx (6x))/(6x) = 6/6x = 1/x