X=1/2
Hope this helped! :3
Step-by-step explanation:
A simple event is one that can only happen in one way - in other words, it has a single outcome. If we consider our previous example of tossing a coin: we get one outcome that is a head or a tail. A compound event is more complex than a simple event, as it involves the probability of more than one outcome.
Student B is wrong , student A is correct in simplifying the expression .
Expression B must be simplified to cot θ .
Formulas to be used are :
1 -
θ =
θ
1 -
θ =
θ .
Since , location of error is step 3 , we will start from there
[ ( 1 -
θ ) / sin θ ] / cos θ = [ ( 1 -
θ ) / sin θ ] * [ 1 / cos θ ]
= ( 1 -
θ ) / ( sin θ * cos θ )
=
θ / ( sin θ * cos θ )
= cot θ .
To know more on trigonometry follow link :
brainly.com/question/24349828
#SPJ4
Since , the question is incomplete we assume it to be :
Answer:
x+12=120
Step-by-step explanation:
7/15, 0.65, .0715
7/15 = .467
Hope this helps you! (:
-PsychoChicken4040