23. Line AB represents a steep hill. 1
A
The coordinates of point A are
and the coordinates of
B
point Bare
The slope of the hill is
O

just needed some points but try socratic

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

the answer is y = 11.54

hope this : )