krocker58
06.04.2020 •
Mathematics
Diane is 3 years older than twice her sister Samantha the age and Samantha's age is represented by a s which expression represents things age
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Ответ:
coordinates of B are (5,-2)
Step-by-step explanation:
let B be (x2,y2)
x1 = -3 y1 = 6
x = 1
y = 2
so
x = (x2 + x1)/2
1 = (x2+(-3))/2
or, 2 = x2 - 3
so, x2 = 5
now
y = (y2+y1)/2
or, 2 = (y2 + 6)/2
or, 4 = y2 + 6
so, y2 = -2