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meliac
03.02.2021 •
Mathematics
Two fractions with a difference of 1/3 but with neither denominator equal to 3
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Ответ:
3/9 and 6/9
Step-by-step explanation:
3/9 is simplified to 1/3
6/9 is simplified to 2/3
Ответ:
Step-by-step explanation:
f(0) = 8 {y-axis intercept = (0, 8)}
Vertex = (1, 9)
f(x) = a(x - 1)² + 9
8 = a(0-1)² + 9
8 = a + 9
a = -1
f(x) = - (x - 1)² + 9
f(x) = - (x² - 2x + 1) + 9
f(x) = - x² + 2x - 1 + 9
f(x) = - x² + 2x + 8
x₁ = -2 and x₂ = 4, so also:
f(x) = -(x + 2)(x - 4)