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Iteru [2.4K]
3 years ago
12

What is the area, in square centimeters, of a 8cm circle

Mathematics
1 answer:
Hatshy [7]3 years ago
4 0
If the diameter of the circle is 8cm then the radius must be 4cm. Hence area of the circle must be =50.26cm squared
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The function y = x 2 – 4x + 8 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence
Alla [95]

Answer:

Exterme Value: (2,4).

The bird reaches its minimum height which is 4ft affter covering a horizontal distance of 2 ft.

Step-by-step explanation:

The given function is y=x^2-4x+8.

We add and subtract the square of half the coefficient of x.

y=x^2-4x+(-2)^2-(-2)^2+8.

The first three terms form a perfect quadratic trinomial.

y=(x-2)^2+4.

This function is now written in the form y=a(x-h)^2+k, where (h,k) is the extreme value(vertex).

The extreme value or the vertex is (2,4).

Interpretation:

The bird reaches its minimum height which is 4ft affter covering a horizontal distance of 2 ft.

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Answer:

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Answer:

D

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The answer would be D. $21.77
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Read 2 more answers
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