Answer:
Option B
Step-by-step explanation:

Step-by-step explanation:
3n + 6( -8n + 9)
= 3n - 48n + 54
= - 45n + 54
Hope it will help
The probability 1÷3+1÷3+1÷3=1÷9
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1 , then
sin²x = 1 - cos²x and cos²x = 1 - sin²x
Consider the left side
← expand numerator/denominator using FOIL
=
= 
= 
= 
= cot²A = right side , thus proven