Answer:
d=2
Step-by-step explanation:
Given:
The given equation is

To find:
All the real solutions.
Solution:
We have,

It can be written as


Using zero product property, we get
and 
and 
and 
We know that
is an imaginary number because there is a negative sign under the square root.
Therefore,
is the only real solution of the given equation.
I'm pretty sure that it would be 1,000...
Answer:
500 miles
Step-by-step explanation:
Please mark as brainliest.