Answer:
-$13.5
Step-by-step explanation:
Let x be a random variable of a count of player gain.
- We are told that if the die shows 3, the player wins $45.
- there is a charge of $9 to play the game
If he wins, he gains; 45 - 9 = $36
If he looses, he has a net gain which is a loss = -$9
Thus, the x-values are; (36, -9)
Probability of getting a 3 which is a win is P(X) = 1/6 since there are 6 numbers on the dice and probability of getting any other number is P(X) = 5/6
Thus;
E(X) = Σ(x•P(X)) = (1/6)(36) + (5/6)(-9)
E(X) = (1/6)(36 - (5 × 9))
E(X) = (1/6)(36 - 45)
E(X) = -9/6 = -3/2
E(X) = -3/2
This represents -3/2 of $9 = -(3/2) × 9 = - 27/2 = -$13.5
-(1/2)p<-16
Divide both sides by the coefficient of p. Flip the inequality sign because you are dividing a negative number.
p>32
Final answer: A
Answer:
1311.88
Step-by-step explanation:
Feet:stories
883:70
x:104
To solve this we need to multiply 883 by 1.48 because this is what we multiplied 70 to get to 104
x=1311.88=1312
Answer:
y = 23x-82
Step-by-step explanation:
The equation is written in the form y = mx+b
We need to find the slope
m = (y2-y1)/(x2-x1)
= (79-56)/(7-6)
= 23/1
The slope is 23
y= 23x +b
Put in a point for x and y to determine b
10 =23(4) +b
10 =92 +b
Subtract 92 from each side
10-92 = 92-92 +b
-82 =b
The equation is
y = 23x-82
Answer is C. By solving x-y=-5 to x=-5+y and converting 2x + y = -1 into 2x + x + 5 = -1 the answer becomes -2 =x. By plugging that into 2 (-2) + y = -1, the answer is y=3. So your answer is C
