From the information given:
Random wins 2000 800 400 0
Probabilities 1/10^4 4/10^4 10/10^4 9985/10^4
thus the expectation will be:
E(x)=[2000+4*800+4000+9985*0]/10^4
E(x)=9200/10000
E(x)=$0.92

3 0

3 years ago

A patient ingests 5 grams of a certain drug which

IgorC [24]

Answer:

8 hours

Step-by-step explanation:

5 - 1 = 4 grams

10% of 5 = 0.5 grams per hour

4/0.5 = 8 hours

8 0

3 years ago

The height of a golf ball, in meters, x seconds after it has been hit is given by the expression -4.9x^(2) +4.8x+0.1 . When does

iragen [17]

Answer:

t = 1 second

Step-by-step explanation:

The height of a golf ball, in meters, x seconds after it has been hit is given by the expression.

$h=-4.9x^2 +4.8x+0.1$

We need to find the time when the ball will hit the ground.

When it hits the ground, h=0

$-4.9x^2 +4.8x+0.1=0$

It is a quadratic equation. The solution of the above equation is :

x = 1 seconds, x = -0.02 seconds

Hence, after 1 second the ball will hit the ground.

7 0

3 years ago

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