The first thing we must do for this case is to calculate the scale factor.
For this, we make the relationship between two parallel sides.
We have then:

Substituting values we have:

We are now looking for the value of AB
We have then:

Substituting values:

Answer:
The scale factor is:

The value of AB is:

Answer:
82 rounded to the nearest ten is:
80
Answer:

Step-by-step explanation:
Given
See attachment
Required

From the question, we understand that she can only get blood from O or A groups. So, the probability is represented as:
This is calculated as:

Using the American row i.e. the blood must come from an American.
We have:


So, we have:


X<span>≥2 where x equals your number of brothers</span>