Answer:
Part A = 2
Part B = I'm unsure, sorry.
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
The reciprocal of a number n is 
(a)
1
← change to an improper fraction
= 
Then its reciprocal is
= 
(b)
The reciprocal of
is
=
= 1 
(c)
Each is the reciprocal of the other
Answer: h = 25.0000585 mm
I can't really show work on a computer because there are symbols involved
Step-by-step explanation:
Since

is negative, it doesn't have any real roots.
1+3=4
A counterexample is an a example that proves the statement false.
1+3 are not even numbers but they equal an even one, so it just proved the statement wrong.