Answer: D
Step-by-step explanation:
A. Det can be negative.
B. Is gobbledygook
C. All components of the matrix are included.
D. The others have been eliminated, and it's true.
Answer:

Step-by-step explanation:
If
are coordinates of a triangle then area of a triangle is equal to 
Let point P be 
Put 
Area of a triangle = 

Also,
Area of a triangle = 9 square units

±18 = -19 + 5x - 2y

Answer:
There is gonna be about 12 Crew Members
100 to 250 trees ................