We have to find the expected value for the PlayBall lottery.
The price of the ticket = $1
Prize amount = $250
If a player wins, he will be winning $249 as the price is not paid back along with the prize amount. He is spending $1, getting back $250, so the net amount he is getting back is $249.
Now we have to find the probability of winning and losing.
Number of letters from A to T = 20
Number of digits from 0 to 9 = 10
Probability of picking up the same letter that was picked on that day = 1/20
Probability of picking up the same number that was picked on that day = 1/10
Thus, the Probability of picking up the same letter and same number that was picked on that day =
Thus, the probability of winning = 1/200
The probability of losing =
The expected value E for the PlayBall lottery will be:
Thus, the option C gives the correct answer
Remark
Let f(x) = y must to make it easier to write.
Equation
Original Equation: y = (x - 5)/3
Inverse
Interchange the x and y. You get x = (y - 5) / 3
Solve for y in the inverse.
x = (y - 5)/3 Multiply by 3
3x = y - 5 Add 5 to both sides.
3x + 5 = y
<u><em>substitute f1(x) back into the equation.</em></u>
3x + 5 = f(x) Now put in 3 for x
f(3) = 3x + 5
f(3) = 3*3 + 5
f(3) = 14 <<< Answer
The width of the sidewalk would be 10ft.
Sorry if incorrect
Answer:
Z must equal 22° because it will add up to 180° it is an acute scalene triangle
Answer:
'TSU' Makes a right angle or a 90° angle
The U=30°, T=60° U+T= 90°
So 'SU' is...