Answer:
-12x-28=4
-12x=32
x=-16/3
Step-by-step explanation:
Distance between two points P(x1,y1), Q(x2,y2):
D=sqrt((x2-x1)^2+(y2-y1)^2)
Polygons are generally named in order along the perimeter, so that for a rectangle ABCD, AC or BD are diagonals.
Here, we need the distance between points A(4,3) and C(-4,-2)
Applying the above formula for distance between two points,
D=sqrt((4-(-4))^2+(3-(-2))^2)=sqrt(8^2+5^2)=sqrt(64+25)=sqrt(89)
(r^-7)^6 = r^-42 . . . . exponents are multiplied
26/10 = 2.60 .... 2.60 x 30 = 78. So 78 is the answer
