DE : DF = 2 : 5
So, DE = 2 parts and DF = 5 parts
EF = DF - DE
= 5 - 2
= 3 parts
DE : EF = 2 : 3
Let D be (x, y).
Then, the point E divides the line segment DF internally in the ratio 2 : 3.
So, E is
But, it is given that E is (-3, 2).
Therefore,
3x - 6 = -15 and 3y - 8 = 10
3x = -9 and 3y = 18
x = -3 and y = 6
Hence, D is (-3, 6)
Answer:
1100 mm = 1.1 m, and 900 mm = 0.9 m.
So the area is 1.1 x 0.9 = 0.99 m^2
4 over 12 times 8 over 20
= 4/12 * 8/20 ....( 4/12 = 1/3; 8/20 = 2/5)
=1/3 * 2/5
=2/15
y= -2x +11
Step-by-step explanation:
the 2 points: (-2,15) and (1,9)
find the slope: 6/ -3 = -2
find y-intercept: 9 = -2 + b b=11