Answer:
Step V: Transitive property of Inequality
Step VI: Subtraction Property of Inequality
Step-by-step explanation:
In Step IV, the RHS of t=both the sides are equal.
So, they equated the LHS of both the sides.
This is the transitive property of equality which states that if a = b and c = b then a = c.
In this case, a = 
b = 180⁰
c = 
Consequently, 
In step VI, 
is subtracted on both the sides. So, this is called as Subtraction Property of Equality.
For question 1, you already have that answered which is correct! for question 2, your answer would be (-2, 3)!
Answer:
50 deg
Step-by-step explanation:
In an right triangle, the acute angles are complementary. That means their measures have a sum of 90 deg.
m<C + m<B = 90
7x - 20 + 4x = 90
11x = 110
x = 10
m<ACB= 7x - 20
m<ACB = 7(10) - 20
m<ACB = 70 - 20
m<ACB = 50
Answer: m<ACB = 50 deg
Answer:
Triangular Pyramid
Step-by-step explanation:
The average would be the total amount divided by the 2 groups, so the answer would be 37.5 years old.
