If each painting takes 3 hours, and he has to do 8 then he would spend 24 hours doing all 8 portraits
Answer:

Step-by-step explanation:
The given cylindrical equation is

Multiply both sides by r.
.... (1)
The required formulas are

Substitute
in equation (1).


Add 1 on both sides.

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It is the equation of a circle centered at (0,1) with radius 1.
Therefore, the equation in rectangular coordinates is
.
Answer:
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Step-by-step explanation:
Answer:
its type hard to see ngl
Step-by-step explanation: