Answer:
Step-by-step explanation:

In this situation a = 1, b = 2

1 + 4 = 
5 = 
c = 
This is an important mathematical theorem to know. It's called the Pythagorean Theorem.
Answer:
That's the right answer.
Step-by-step explanation:
2x+3=3x
Subtract 2x from both sides
3=x or x=3
Answer:
, close circle on 5 and place the arrow to the left
Step-by-step explanation:

subtract 7 on both sides to isolate the variable

Answer:
A, a rhombus has all the properties of a square.
Step-by-step explanation:
Not all quadrilaterals will be the same