Answer:
--- Radius
--- Height
Explanation:
Given
Object: Can (Cylinder)

Required
Maximize the volume
The surface area is:

Substitute 517.8 for S.A

Divide through by 2

Factorize:

Divide through by 

Make h the subject
--- (1)
Volume (V) is calculated as:

Substitute (1) for h

Open Bracket

Differentiate V

Set V' to 0

Collect Like Terms

Divide through by 3

Divide through by 



Take square root of both sides


Recall that:

Substitute 5.24 for r





Hence, the dimension that maximize the volume is:
--- Radius
--- Height
Perhaps the most successful way we've been able to use light to transfer information is fiber optics. ... Through rapid changes in the light, you can send highly complex signals down the cable. These are most often used either for high speed internet connections, or for sending sound signals to home theater systems.
Answer:
The growth of inter-regional trade in luxury goods was encouraged by innovations in previously existing transportation and commercial technologies, including the caravanserai, forms of credit, and the development of money economies as well as the use of the compass, the astrolabe and larger ship designs.
Explanation:
Caravanserais, large guest houses for travelling merchants and their caravans, were dispersed along the land routes of the Silk Roads. ... By offering such an intercultural environment, caravanserai were important sites for the exchange of material culture, languages and ideas.
B) study of psychological disorders.