Answer:
8 units is the answer.
Step-by-step explanation:
Pythagorean theorem can be written as,

∴ d = 8 units
Answer:
Option (a) is correct.
The system of equation becomes

Step-by-step explanation:
Given : Equation 
We have to construct a system of equations that can be used to find the roots of the equation 
Consider the given equation 
To construct a system of equation put both sides of the given equation equal to a same variable.
Let the variable be "y", Then the equation 
becomes,
Thus, The system of equation becomes

Option (a) is correct.
Answer:
Step-by-step explanation:
3/5/7=3/35