Step-by-step explanation:
DCE²+GCH²+X²=180°
40²+27²+X²=180°
x²=2329-180°
x=√2149
x=49//
Answer:

Step-by-step explanation:
simplify
by putting the negative sign on the outside. 
find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

Simplify:

solve: 
Answer:
The answer is Plane P
Step-by-step explanation:
The reason for the answer is because a closed, two-dimensional or flat figure is called a plane shape. Different plane shapes have different attributes, such as the numbers of sides or corners. A side is a straight line that makes part of the shape, and a corner is where two sides meet.
The whole number that comes before 105 is 104.
However, it is not the only whole number that comes before 105.
Whole numbers are identified as natural number and zero (0). Meaning the whole number starts with 0 then followed by 1,2,3,4.... so on. Whole numbers are positive numbers without remainders nor fractions.
Whole number that come before 105 range from 0 to 104.
Natural numbers are also called counting numbers; They start with 1. Zero is not a natural number because it cannot be counted.
Integers are numbers which can be positive or negative and it includes zero.