Answer:
D.
Step-by-step explanation:
The formula is Sum(n) = (n -2) 180.
Answer:
X = 6
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
If you set the numbers in order from least to greatest, you will find that 4 is the middle value(median)
The answer is 4 because the d is already negative
Answer:
cot(∅) = 
Step-by-step explanation:
tan ∅ and cot ∅ are inverse functions
therefore the inverse of
tan ∅ = √15 / 10
is equal to
cot ∅ = 10 / √15
Rationalizing the denominator
* 
cot ∅ = 