Answer:
A) 1st one
Step-by-step explanation:
because it has a cirlular base and tapers to a point
hope this helps ;)
Answer:
a) 
b)
Step-by-step explanation:
We are given in the question:

F(x,y,z) = (y, -x, z)
a) 
We differentiate with respect to t.

b) F(c(t))
This is a composite function.


Answer:
false
Step-by-step explanation:
you can use whatever letters you want to represent things. x and y make sense that you would use just them for graphing, but if it is a word problem you could have like c for cost or t for time or something
Answer:
6 and 1
Step-by-step explanation:
Let x - 6 = 0 and x - 1 = 0
x = 6 and x = 1