Answer:
C
Step-by-step explanation:
Given: the set is defined as 
To find: Set builder form of the complement of the set C.
Solution:
A set is a well-defined collection of objects. Set-builder form is used to denote the elements of the set. This form can also be used to express sets using an interval or an equation.
Complement of set A refers to elements not in A.
For
,

Option C is correct.
Answer:
8.31m
Step-by-step explanation:
tan 40 = Opp/Adj
tan 40 = x/8
x = 8 tan 40
x = 6.71m
Plus 1.6m = 8.31m
Answer:
x=(5+i*sqrt(35))/2, (5-i*sqrt(35))/2
Step-by-step explanation:
Use the quadratic formula with the following values.
a = 1
b = -5
c = 15
Substitute and simplify.
(5+-sqrt((-5)^2-4*(1*15)))/2*1
x = (5+-i*sqrt(35))/2
When you get a negative number inside the square root, remember that you can pull out i to make the number inside positive.
Since there is a variable, there are infinitely many solutions.