value of 
at x=8 is 
.
<u>Step-by-step explanation:</u>
here we need to evaluate 12 + x to the power of 4 - 6 when x = 8 or , where x=8 . Let's find out:
⇒
Putting x =8 :
⇒ 
Splitting 8 to power 4 into 8 to power 2 ( 2 times )
⇒ 
⇒ 
⇒ 
⇒ 
⇒
Therefore , value of at x=8 is .
The second relation is a function.
For a relation to be a function, each x-value can only have a singular corresponding y-value. Since all other relations feature x-values with multiple y-values, the second relation is a function.
Answer:
Inequality :
Step-by-step explanation:
Let the unknown number be x
at most -70 = ≤ -70
Solving further :
The expected value is -$0.33.
The probability of winning is 1/6. The probability of losing is 5/6.
If you win, your prize is 10-2 = 8, since you paid $2 to pay the game. If you lose, you lose the $2 you spent.
The expected value would be the probability of winning, 1/6, multiplied by the winnings, 8, added to the probability of losing, 5/6, multiplied by the loss, -2:
1/6*8 + 5/6(-2) = 8/6 - 10/6 = -2/6 = -0.33
