Answer:
1
Step-by-step explanation:
Answer:

Step-by-step explanation:
we have

This is the equation of a vertical parabola open upward (because the leading coefficient is positive)
The vertex is a minimum
The equation of a vertical parabola into vertex form is

where
(h,k) is the vertex of the parabola
Convert the equation into vertex form
Move the constant term to the left side

Complete the square


Rewrite as perfect squares

therefore

The vertex is the point (-1,-6)
7/9 = 0.77777778
honestly i just googled this
Answer:
y = 15
Step-by-step explanation:
In a parallelogram, opposite lengths are equal.
So it means that the length (5y - 20) is equal to (2y + 25).
Now that there is only one variable in the equation, we can solve for the variable.
5y - 20 = 2y + 25
5y - 2y = 25 + 20
3y = 35
y = 15
Dont quote me on this but i think it is 10 because 86 × 2 is 172 and 297 ÷ 172 is 10 I think