It all depends on the importance of the variable its self. Its important to solve it so you know what the variable is and its important to solve one at a time because its impossible to solve a variable completely if you have two of them
Answer:
1. 
Step-by-step explanation:
We can see that CD is angle bisector, So we will use angle bisector theorem which states that the angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.
We can set up an equation as:
Upon substituting our given values we will get,
Cross multiplying our equation we will get,
Therefore, the length of AD is units and 1st option is the correct choice.
Answer:
Defining the straight number of integers, we have to live in the year 2020 and this Greek historian was born in the year - 484.
Step-by-step explanation:
When using whole numbers, we denote positive numbers as the number of numbers after 0, and negative numbers the number of numbers before zero.
So if we consider the birth of Christ to be the year 0, then all years before Christ will be negative and all years after Christ will be positive.
So we have to live in the year 2020 and this Greek historian was born in the year - 484.
Answer:
wow i have never seen that instrument before.
Step-by-step explanation:
