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isabella4141
03.08.2019 •
Mathematics
Which of the following is the graph of f(x) = x2 − 5x + 4? graph of a quadratic function with a minimum at 2, negative 9 and x intercepts at negative 1 and 5 graph of a quadratic function with a minimum at 3, negative 4 and x intercepts at 1 and 5 graph of a quadratic function with a minimum at 2.5, negative 2.4 and x intercepts at 1 and 4 graph of a quadratic function with a minimum at negative 1.5, negative 6.2 and x intercepts at 1 and negative 4
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Ответ:
Ответ:
Step-by-step explanation:
Given is a function
Let us write in vertex form by completion of squares
Leading term is positive. Open upward
Hence minimum at the vertex = (2.5, -2.25)
x intercepts are
x=4 and 1 are x intercepts
Ответ:
Area of the shaded area = 60 m^2
Step-by-step explanation:
Remark
I don't think you need the 40 degrees for anything.
Formula
Area of Shaded part = area of the rectangle - area of the triangle
Solution
Area of the Rectangle
L = 12 meters
W = 10 meters
Area = 12 * 10
Area = 120 m^2
Area of the triangle
Area = 1/2 b * h
b = 12
h = 10
Area = 1/2 * 12 * 10
Area = 120/2 = 60
Area of the shaded area
120 - 60 = 60