Answer:

Step-by-step explanation:
we know that
To find the conjugate complex of a complex number, simply change the sign of the imaginary part of the complex number
In this problem we have

so
the complex conjugate is equal to

the firt answer is Allison and the second answer is0.34
20m/s
Speed=distance/time
Speed = 100/5 = 20
Answer = 20m/s
Answer:
Option (2)
Step-by-step explanation:
Radius of the circular base of the cone = 
Given in the picture,
Diameter of the circular base = 8 cm
Height of the cone = 6 cm
Therefore, radius of the cone = 
= 4 cm
Option (2) will be the correct option.
I think it is the third and the fourth