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Lera25 [3.4K]
3 years ago
12

(64x^8– 4x^3 + 24) : (8x^3)

Mathematics
1 answer:
andrey2020 [161]3 years ago
7 0

Answer:

(16 x^8 - x^3 + 6)/(2 x^3)

Step-by-step explanation:

Simplify the following:

(64 x^8 - 4 x^3 + 24)/(8 x^3)

Factor 4 out of 64 x^8 - 4 x^3 + 24:

(4 (16 x^8 - x^3 + 6))/(8 x^3)

4/8 = 4/(4×2) = 1/2:

Answer: (16 x^8 - x^3 + 6)/(2 x^3)

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Rectangle R has varying length l and width w but a constant perimeter of 4 ft. A. Express the area A as a function of l. What do
ivanzaharov [21]
Given:
l = length of the rectangle
w = width of the rectangle
P = 4 ft, constant perimeter

Because the given perimeter is constant,
2(w + l) = 4
w + l = 2
w = 2 - l            (1)

Part A.
The area is
A = w*l 
   = (2 - l)*l
 A  = 2l - l²
This is a quadratic function or a parabola.

Part B.
Write the parabola in standard form.
A = -[l² - 2l]
   = -[ (l -1)² - 1]
   = -(l -1)² + 1
This is a parabola with vertex at (1, 1). Because the leading coefficient is negative the curve is downward, as shown below.

The maximum value occurs at the vertex, so the maximum value of A = 1.
From equation (1), obtain
w = 2 - l = 2 - 1 = 1.
The maximum value of the area occurs when w=1 and l=1 (a square).

Answer:
The area is maximum when l=1 and w=1.
The geometric argument is based on the vertex of the parabola denoting maximum area.

4 0
3 years ago
Round 96.466 to the nearest hundredth=
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3 years ago
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Answer:

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reason:

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