I don't know if this will help but I found this on YAHOO!
Answer: Domain of definition of a function is the set of numbers which the variable attains and for which the function is defined.
Step-by-step explanation:
f(x) = sqrt (5x-10)
Here x can have value equal to any real number >=2 because if x attains value less that 2, 5x-10 becomes negative and sqrt(5x-10) has no real value.
therefore the domain of the function f(x) is (2, infinity) inclusive of 2.
Answer:
1 9/16 in (or 25/16in)
Step-by-step explanation:
4 5/8 = 4 10/16
6 3/16- 4 10/16 = 1 9/16
Material of pipes is irrelevant