<span>We simplify the equation to the form, which is simple to understand
<span>m/8-7=12
</span></span><span>Simplifying:
<span> + 0.125m-7=12
</span></span><span>We move all terms containing m to the left and all other terms to the right.
<span> + 0.125m=+12+7
We simplify left and right side of the equation.
<span> + 0.125m=+19
We divide both sides of the equation by 0.125 to get m.
<span>m=152
Hope this helps :)♥
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The answer is 340, not super good at math so dont know what scientific notation is but there you go
You can do substitution 2x-2=x^2 -x -6; isolate all terms on one side 0= x^2 -x-2x -6+2; combine like terms x^2 -3x -4=0; factor the quadratic (x-4)(x+1)=0; each term is zero x-4=0 so x=4 and x+1=0 so x=-1. Now, y=2•4-2=6 and y=2•(-1) -2= -4 ; solutions for the system are ( 4,6) and ( -1, -4)
Let us find the co ordinates of each vertex of the triangle .
Vertex A ( in firs second quadrant) = ( -5 ,3)
vertex B in third quadrant = ( -5, -5)
vertex C in fourth quadrant = ( 4, -2)
let us use distance formula AB^2 = ( -5 - 3)^2 + (-5 - -5 )^2 = 64 + 0
AB= 8
BC^2 = ( -2 - -5 )^2 + ( 4 - - 5)^2 = 9 + 81 = 90
BC = 9.48
AC^2 = ( -2 -3)^2 +( 4- -5)^2 = 25 + 81 = 106
AC= 10.29
Perimeter = sum of length of AB+ BC+ Ac = 8 + 10.29 + 9.48= 22.77
