Select the correct answer
2 answers:
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Answer:
Step-by-step explanation:
Data from the question;
Perimeter of a rectangle is cm
Length is cm longer than the width
We are supposed to determine the length and the with of the rectangle;
Assuming, the width x cm
Then, the length is cm
We need to know that the perimeter of a rectangle is given by;
Perimeter = 2 ( length + width)
Therefore;
Thus;
Therefore;
Therefore; the length is cm while the width is
cm
Answer:
Option A.
Step-by-step explanation:
The given function is
Leading coefficient is positive, so it is an upward parabola. Vertex of an upward parabola is the point of minima.
Vertex of a parabola is
In the given function a=0.15, b=-6 and x=400.
At x=20,
So, minimum value of f(x) is 340 at x=20.
From the given table it is clear that the minimum value of g(x) is 55 at x=70.
Since 55 < 340, therefore, g(x) has a lower minimum values, i.e, (70,55).
Hence, option A is correct.