Answer: x=26
Step-by-step explanation: don't know how i know it does. And your welcome i really hope this helped you if not just let me know my name for this app is rubuscubus
The vertex form of a quadratic equation is y = n(x − h)2 + k, where (h, k) gives the coordinates of the vertex of the parabola in the xy-plane and the sign of the constant n determines whether the parabola opens upward or downward.
If n is negative, the parabola opens downward and the vertex is the maximum.
The given equation has the values h = 3, k = a, and n = −1.
Therefore, the vertex of the parabola is (3, a) and the parabola opens downward.
Thus, the parabola’s maximum occurs at (3, a)
Ans D
Answer:
with the keep change flip method
Answer:
x = 10 and y = 4
Step-by-step explanation:
x - y = 6
3x - 2y = 22
1. Isolate x for x - y = 6: x = 6 + y
Substitute x = 6 + y
3 * ( 6 + y) - 2y = 22
2. Isolate y for 3 * (6 + y) - 2y = 22: y = 4
Substitute y = 4
x = 6 + 4
3. Simplify.
x = 10
