6. instead of multiplying by 4/3 it would be 2/3 because it is half a sphere.
9. you should have multiplied by pi first then multiply by 4/3 to make it more easy for you
The answer is 21, ….. because
Answer:
Step-by-step explanation:
Given two parametric equations
and
, the first derivative can be found using the following equation:

In this problem,
and
. Finding the derivative of each of these functions with respect to
gives us the following:


Because
, that means the function is a vertical line and has an infinite first derivative.
Answer:
<em>therefore</em><em>,</em><em> </em><em> </em><em>option</em><em> </em><em>B </em><em>is </em><em>correct</em>
<em>hope </em><em>this </em><em>answer </em><em>helps </em><em>you</em><em> </em><em>dear.</em><em>.</em><em>.</em><em>take </em><em>care!</em>
We know that 3 point can creating always a plane
so from this result the right choice is A. so is true