3. Ron and Harry are first year students at Hogwarts and are going to be placed into one of the four houses: Gryffindor, Ravenclaw, Hufflepuff, and Slytherin. Each house is equally likely.
a. Determine the sample space.
b. What is the probability that Ron gets placed in Gryffindor?
c. What is the probability that Harry does not get placed in Gryffindor?
d. What is the probability that at least one of them gets placed in Gryffindor?

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

i don't see any

step-by-step explanation:

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.