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2 answers:
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Answer:
Eight pieces
Step-by-step explanation:
Create a number line running from 0 to 4/6.
Label the divisions as 1/6, 2/6, 3/6, and 4/6.
Divide each section in half to get small pieces of length 1/12.
Starting at zero, move to 4/6 on the number line and count the number of pieces as you go.
You count eight pieces, so Dario has eight pieces of rope.
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.