20. a photographer takes an average of 15 pictures per session. the total
number of pictures pes) is a function of the number of sessions
a. identify the independent and dependent variables.
b. what values of the domain and range make sense for this situation?
explain.
c. write a function to represent the total number of pictures taken. then
determine the number of pictures taken in 22 sessions.

A)

B)

Values of the domain that make sense would be those from 0 on because there are no negative number of sessions; values of range that make sense would be also those from 0 on because there are no negative number of pictures.

C)

, where "x" is the number of sessions.

If we have 22 session then:

; f(22)=

Explanation:

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

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explanation: