Answer:
The probability of selecting randomly 6 packets such that the first 4 contain cocaine and 2 not is 0.3522.
Step-by-step explanation:
Probabilities of selecting 4 packets with the ilegal substance:
= 
Combinassions possible= 1365
Probabilities of selecting 2 packets with white powder:
= 
Combinations possible= 10
Probabilities of selecting 6 packets from the totality of them:
= 
Combinations possible= 38760
The probability of picking 4 with the substance and 2 with only white powder is:
= 0.3522
I hope this answer helps you.
Answer:
3
Step-by-step explanation:
The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.
f(4) = 2·4 -5
= 8 -5
= 3
Answer:
The required equation is: 
The stopping distance of your car if you were moving at 95 mph is 458.47 feet.
Step-by-step explanation:
Consider the provided information.
Part (A)
Let us consider "s" is the distance "v" is the velocity and "k" is the constant of variation.
It is given that the stopping distance of a car varies directly as the square of the velocity of car when the brakes are applied
This can be written as:
......(1)
It is given that A car moving at 85 mph can stop in 367 feet.
Substitute v=85 and s=367 in above formula and solve for k.




Now to find the equation that relates the stopping distance to the velocity substitute the value of k in equation 1.

Hence, the required equation is: 
Part (B)
Calculate the stopping distance of your car if you were moving at 95 mph.
Substitute the value of v=95 in 



Hence, the stopping distance of your car if you were moving at 95 mph is 458.47 feet.
Answer: The answer is 25
Step-by-step explanation:
First, You would add the two numbers together, which you get 155
Then, the degrees of a triangle is equal to 180. So you would subtract 155 from 189, and you should get 55.
Hope this helps :3