Answer:
D
Step-by-step explanation:
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Answer:c
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Step-by-step explanation:
c
The radius is 4 because the original equation is x^2+y^2=r^2. So the sqrt of 16 is 4.
Answer:
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Step-by-step explanation:
Answer:
x^2 + y^2 <= 4, 0 <= z <= 8
Step-by-step explanation:
- Region that lies on/below the plane means Z<=8
- Region that lies on/above the xy plane means Z>=0.
Combining 1 and 2, we get
0<=Z<=8
If we want disk of radius 2 in x-y plane to be centered at origin the inequality becomes:
x^2 + y^2 <= 4
