I'll use subscript notation for brevity, i.e.
.
By the chain rule,



We have

and

When
, we have

and the partial derivatives take on values of

So we end up with

16 yards will cost $199.84 assuming there is no tax. We know this because
12.49 X 16 = 199.84
The answer is 13 to your question
Answer:
3
Step-by-step explanation:
a = the other leg:




Hope this helps