vicki has 50 inch roll of ribbon. she used 3 feet of the ribbon to wrap a gift. how many inches of ribbon does she have left?
2 answers:
You might be interested in
Answer:
-10,10
Step-by-step explanation:
The given quadratic equation is
The discriminant of this equation is given by;
where a=k, b=20, c=k
For rational solutions, the discriminant must be zero.
Simplify to get:
This implies that:
Take square root to get: