Answer:
25 and 17
Step-by-step explanation:
25+17=42
25-17=8
Answer:
25 miles per hour
Step-by-step explanation:
Given
The joint variation can be represented as:
Where:
Required
Find V, when: 
We have:
Express as an equation
Where k is the constant of variation
Make k the subject
When:
We have:
When:
We have:
Substitute: and
Make V the subject
Answer:you need more information
Step-by-step explanation:you need more info like now!
If the discriminant is a positive number, there will be 2 possible solutions. If you replace the entire section of b²-4ac with 16, you will see that the equation becomes; (-b+-√16)/2a --> leading to an answer with the + and another with the -.
If the discriminant is 0, there will be 1 possible solution, (again replace this into the discriminant value) (-b)/2a ---> this formula is used to also find the x coordinates of a vertex, fyi.
If the discriminant is a negative number, there will be no solution (since squareroot of a negative number is not possible)
Hope I helped :)
