To calculate the **distance between two points**, we can use a formula that is a **variation Pythagorean Theorem**. Look:

**"d" represents the distance **and **coordinates are expressed as follows: (x, y)**

Let's go to the calculations.

**The answer is 10 uc.**

Commutative property: when you have to solve a sum, it does not matter the order in which you place your addends, since you will always get the same result.

We have then:

((40) + (185)) + (240) = 465

(240) + ((40) + (185)) = 465

** answer:**

** Form 1:**

** ((40) + (185)) + (240) = 465**

** Form 2:**

** (240) + ((40) + (185)) = 465**

9.20 divides by 4 is 2.3 per quarter pound

There are 9 quarters in 2 1/4

So 9 times 2.3 is 20.7

**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.