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Helen [10]
3 years ago
7

The length of a rectangular wire frame with dimensions of 12 cm × 8 cm increases at the rate of 0.5 cm per second, while its wid

th changes such that the perimeter remains the same. What part of the area of the initial rectangle is the area of the final rectangle after 8 seconds ?
Mathematics
1 answer:
arsen [322]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

Since the length increases by 0.5 cm every second, after 8 seconds the length will increase by 4 cm. 12 + 8 + 12 + 8 = 40, and 40 - (16 + 16) = 8. 8/2 = 4, so the width is now 4. 16 * 4 = 64, and 12 * 8 = 96. 64/96 = 2/3.

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Answer:

T(100) represents that the plane flies against the wind at 110mph for 0.714 hours

Step-by-step explanation:

Given

w = headwind

T = time

Model:

<em />T(w) = \frac{300}{530 - W}<em> -- This was not properly presented in your question</em>

Required

What does T(110) means

First, we calculate T(110):

Substitute 110 for w in T(w) = \frac{300}{530 - W}

The expression becomes

T(110) = \frac{300}{530 - 110}

T(110) = \frac{300}{420}

T(110) = 0.714<em> -- approximated</em>

<em>T(100) represents that the plane flies against the wind at 110mph for 0.714 hours</em>

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3 years ago
The tax rate on Jerome James 112000 vacation home is 25 Mills the property is assessed at full value how much will Jerome pay in
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Answer: $2,800

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We know that to calculate the property tax, we need to multiply the assessment value of the property by the mill rate and then divide by 1,000.

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4 0
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Answer:

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3 years ago
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