Answer: C.
Step-by-step explanation:
Given: Box contains 8 green balls and 4 purple balls.
Total balls = 8+4 = 12
event 1 = first picking green ball
event 2 = second picking purple balls.
As first ball was replaced, that means both events are independent.
Probability that you have selected a green ball and then a purple ball = P(purple ball )
Formula for probability =
Probability of selecting a purple ball (second pick)=
The required probability , so C is correct option.
Answer:
$68
Step-by-step explanation:
We have been given the demand equation for Turbos as , where q is the number of buggies the company can sell in a month if the price is $p per buggy.
Let us find revenue function by multiplying price of p units by demand function as:
Revenue function:
Since revenue function is a downward opening parabola, so its maximum point will be vertex.
Let us find x-coordinate of vertex using formula .
The maximum revenue would be the y-coordinate of vertex.
Let us substitute in revenue formula.
Therefore, the company should sell each buggy for $68 to get the maximum revenue of $18,496.