## Online Course Discussion Forum

### MC II-A HW Questions

MC II-A HW Questions

1) Regarding this week's HW, I'm not sure how to do 9.19 and 9.25.

2) Also, regarding last week's hw, I'm wondering if my hw was regraded because I didn't see a change with the grades.

Thank you! Happy early Veteran's Day!

Re: MC II-A HW Questions

For 19, after eating some ice cream the cone gets smaller (we know it has now height 2 inches, but we don't know its radius). Here is a side view of the cone before and after eating some of it:

For 25 the following diagram might be helpful:

It is a view "cutting" through the diagonal of the square made by the centers of the four spheres with radius $1$.

You HW grade should be updated today.