Answer:
(a/2, a/2)
Step-by-step explanation:
Coordinates of B & D are; (0, a) and (a, 0) respectively.
The formula for calculating coordinates of midpoint is;
M = ((x1 + x2)/2), ((y1 + y2)/2)
Coordinates of BD will be;
M_BD = ((0 + a)/2), ((a + 0)/2)
M_BD = (a/2, a/2)
Hello,
6x+7iy=18-21i
==>
6x=18==>x=3
and
7y=-21==>y=-3
Answer A
It is 38 that how much it is and if u have a decimal u got to inground that
If 30% were perfect, 70% were not perfect. So we know that 70% of the total number of photographs is 210.
p(70/100)=210 multiply both sides by 100
70p=21000 divide both sides by 70
p=300
So there are 300 photographs in all.
