Answer:
16
Step-by-step explanation:
radius is 1/2 of diameter
Answer:
ACB
Step-by-step explanation:
The surface area of ANY sphere ... EVERY sphere ... is
Area = (4 pi) x (radius)² .
All you have to do is take the radius, square it,
and multiply by 4 pi.
If you only know the diameter, the radius is half of it.
So for your sphere, the surface area is
(4 pi) x (1 unit)²
= (4 pi) x (1 square unit)
= 4 pi square units.
complex roots occur in conjugate pairs
given 2 - 3√5 is a root then 2 + 3√5 is also a root
one of the other roots is 2 + 3√5
there are 2 roots of - 4
one of the other roots could be another - 4
