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Vesna [10]
3 years ago
14

If a scientist creates a new rock-like substance in a laboratory, why wouldn’t this type of material be classified as a true min

eral?
a.it’s an inorganic substance.
b.it’s not a naturally occurring substance.
c.it’s too new to be a mineral.
d.it would not be hard enough.
SAT
2 answers:
VARVARA [1.3K]3 years ago
7 0
<h2>B: Its not naturally occurring substance</h2>
tangare [24]3 years ago
5 0
B.Its not naturally occurring substance
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Since a maximum area is desired, the dimensions of the larger, outer rectangle would be equal to 96 ft and 96 ft.

<h3>How to calculate the area of a rectangle?</h3>

Mathematically, the area of a rectangle is calculated by using this formula:

A = LW

<u>Where:</u>

  • L is the length.
  • W is the width.
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Since the perimeter shouldn't be larger than the available fencing, we have:

384 = 2L + 2W

2W = 384 - 2L

W = 192 - L

Now, the area becomes:

A = L × (192 - L)

A = 192L - L²

By using completing the square to find the roots, we have:

A = 192L - L²

0 = 192L - L² + 96² - 96²

0 = 96² - (L² - 192L + 96²)

0 = 9216 - (L - 96)²

L = 96 ft.

W = 192 - 96

W = 96 ft.

<h3>The dimensions of the smaller holding pens.</h3>

For the width of the smaller holding pens, we have:

Width = 96/3

Width = 31 ft.

However, the length of the smaller holding pens would remain the same as 96 feet.

Read more on rectangle here: brainly.com/question/25292087

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Explanation:

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