Evaluate 6a + 4b -3c when a = 4, b =7, and c = -2?
954884
I was going to answer this, but then I noticed you're putting your entire homework assignment on this.  learn to do your own work - if we answer all these for you then you'll never learn.
933357
5c-2+c=-8-4c-7\n5c-2+c-c=-8-4c-1-c\n5c-2=-9-5c\n5c-2-5c=-9-5c-5c\n-2=-9-10c\n-2+9=-9-10c+9\n7=10c\nc=7/10\nc=0.7\n\nTHE ANSWER IS 0.7
1168391
c=1\na=2\nn=3\nCan = 1X2X3 = 6\nA=1 \nn=2 \ny=3\nb=4\no=5\nd=6\ny=7\n1X2X3X4X5X6X7= 5040\n\ng=1\no o = 4\nd=3\n\n1X4X3= 12\n\nA=1\nT=2 \n1X2=2\nM=1\na=2\nt=3\nh=4\n1X2X3X4= 24
1056150
7 - [2(3x + 4) - 5] = x - 3\n7 - [6x + 8 - 5] = x - 3\n7 - [6x + 3] = x - 3\n7 - 6x - 3 = x - 3\n4 - 6x = x - 3\n4 - 7x = -3\n-7x = -7\nx = 1\nCheck:\n7 - [2(3*1 + 4) - 5] = 1 - 3\n7 - [(2(3+4) - 5] = -2\n7 - [2(7)-5] = -2\n7 - [14-5] = -2\n7 - 9 = -2\n-2 = -2
852832
x = [-b +/- sqrt(b^2 - 4ac)] / (2a)\nf(x): a = 1, b = 0, c = -4\ng(x): a = 1, b = -1, c = -12
482048
-b (+/-) sqrt(b^2 - 4ac)\n--------------------------------- = x\n2a\n\nUsing the equation "ax^2 + bx + c = 0" to find the values of a, b, and c.
975217
Line AC = 6, line BC= 2x+2, line AB=x+1\nSo 2x + 2 = 6\n2x = 4\nx = 2 <-- option C
385830
6. c\n7. c\n8. b\n\nAny calculator can fiqure these easy problems.
925685
7c + 3d= -16 .. (1)\n7c + 5d = -8 ... (2)\n\n(2) - (1) 2d = 8\nd = 4\nBy substitution\nc = -4
786437
8a+4-3a= -4-a+2\nfirst i will subtract +a from both sides & add -4+2=\n8a+4-2a=-2 \nthen subtract 8a-2a=-2 =\n6a+4=-2\nthen we add +2 to both sides =\n6a+6=\nthen we subtract -6 from both side & we get\n6a=6\ndivide by 6 on both side \na=-1.\nnow we go back to verify from the original equation by plugging in -1 for a\n8a+4-3a=-4-a+2\n\n8(-1)+4-3(-1)=-4-(-1)+2\n8x-1= -8+4+3 = -4+1+2\n-8+7 = -4+3\nwe get -1 is equal to -4+3 which is -1.\n\nI hoped that helped.
1051369
Given a+b+c=0\na+b=-c\nCubing both sides, we get\n(a+b)^3=(-c)^3\na^3+3a^2 b+3ab^2+b^3=-c^3\na^3+b^3+c^3=-3a^2 b-3ab^2=-3ab(a+b)=-3ab(-c)=3abc\nTherefore a^3+b^3+c^3=3abc
736868
2(2.5b -9) +6b =7 disribute 2\n5b-18+6b=7 add 18\n11b=25    divide 11\nb=25/11=2 3/11=2.727\n\n12y = 2y +40   subtract 2y\n10y=40     divide by 10\ny=4\n\n6(c +4) = 4c -18   distribute 6\n6c+24+4c-18   subtract 4c+24\n2c=-42  divide by 2\nc=-21
981023
Problem: 4(3c + 1) = -(5-c)\n\nFirst step is to distribute.\n     4(3c) and 4(1) = 12c + 4\n     -(5) and -(-c) = -5 + c (negative times a negative is a positive)\n\nStep #2: Write out the new problem.\n     12c + 4 = -5 +c\n\nStep#3: Get the variables to one side.\n      12c +4 = -5 + c\n         -c                   - c\n--------------------------------\n      11c +4= -5\n              -4      -4\n----------------------------\n       11c = -9\n\nStep#4: Divide:\n       11c = -9\n      -------   ------\n        11       11\n         c = -9\n               -----\n                11
776052
3*5b= 15b      \n3*-7= -21\n 15b-21=-7+b\n15b-b-21=-7\n15-b=-7+21\n14b=14\nb=14/14\nb=1
1124767
9a*a+6a-4b*b+1\n= (9a^2+6a+1)-4b^2\n=(3a+1)^2-(2b)^2\n=(3a+2b+1)(3a-2b+1)
965380
(x - 3)² + (y + 2)² = 4²\n(C): x² + y² - 6x + 4y - 3 = 0
439090
((x^2-2x)/4y)/((x^2-4)/6)\n=(6x(x-2))/(4y*(x-2)(x+2))\n=3x/(2y(x+2))