Answer:
36 sqm
Step-by-step explanation:
Area = base x height /2
= 12 x 6 /2
= 36sqm
z= r(cosθ+i sinθ) is the required polar form where, r = √41 and θ =π- 
Step-by-step explanation:
Given,
-4+5i is a complex number.
To find the polar form.
Formula
z=x+iy
r² = mod of (x²+y²)
θ = 
So, the polar form will be z=r(cosθ+i sinθ)
Now,
r² =(-4)²+5² = 41
or, r = √41
θ =π-
[ since the point is in second quadrant]
Hence,
z= r(cosθ+i sinθ) is the required polar form where, r = √41 and θ =π- 
The answer would be 24/72 or (1/3).
It is c. 216 in³
to answer the problem, u must know the formula V=LxWxH (volume= length x width x height)
L=12
W=6
H=3
so, 6x3x12= 216 in³
Answer:
no
Step-by-step explanation:
3.6 + 3.6 is not 9 & 2.84 + 2.84 is not 7.1