livmoney8905
08.04.2020 •
Mathematics
Find the vertex f(x)= 3x2-54x+241
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Ответ:
(9 , -2)
Step-by-step explanation:
vertex of quadratic function: y = a(x – h)² + k, vertex (h, k)
f(x)= 3x²-54x+241
= 3 (x²- 18x + 9²) - 2
= 3 (x - 9)² - 2
h = 9, k = -2
Ответ:
6.64 mph (rounded)