Answer:
a. A and B are disjoint
Step-by-step explanation:
We know that P(A and B)=0, It means that event A and event B have nothing in common and it means that event A and event B are disjoints events.
The event A and event B are independent if
P( A and B)= P(A)*P(B)
P(A)*P(B)=0.3*0.2=0.06
So, P(A and B)≠P(A)*P(B)
Hence events A and B are not independent.
Option a is A and B are disjoints which is correct
Option b is A and B are neither disjoints nor independent which is partially false as A and B are disjoints event.
Option c states that A and B are independent which is clearly false.
Option d states that A and B are disjoints and independent which is partially false as A and B are not independent.
Hence the correct option is option A.
Answer: The projectile reaches its maximum height after 20 seconds.
Step-by-step explanation:
Given the function:
You can following formula (which gives the x -coordinate of the vertex of the parabola) in order to find after how many seconds the projectile takes to reach its maximum height:
In this case you can identify that the values of "a" and "b" are:
Then, substituting values into the formula, you get the following result:
Therefore,based on this, the conclusion is: The projectile reaches its maximum height after 20 seconds.
Answer: 48% compared to 18%
<u>Step-by-step explanation:</u>
The first item to be compared is Students:
Students-Small divided by Students-Total
48 ÷ 100 = 48%
The second item to be compared is Adults:
Adults-Small divided by Adults-Total
18 ÷ 100 = 18%
Drop the 4 down to make it equal to 2.
1) x^5 y^7 z ^5/2
2) idk
3) y-6 the check mark thingy and under it is 2 * y not under check mark thingy - 14
4) 1/x
5) 6 check mark thingy and where the V starts on that top is a 4 and then under the check mark thingy is a 2 if you wanted it in decimal form its 7.13524269...