I really need help!!! A coin has an equal probability of coming up heads or tails when tossed. Suppose a game is played where a player is awarded 10 points if a pair of tosses both come up heads, 8 points if they both come up tails, and 2 points if the result is 1 head and 1 tail.

What is the expected value of the score for a pair of tosses?

h who knows

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation