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Klio2033 [76]
3 years ago
9

Jenna is drawing a sketch of her room. The room is 15 feet long by 12 feet wide. The

Mathematics
1 answer:
SOVA2 [1]3 years ago
3 0

Answer:

4 inches

Step-by-step explanation:

Actual dimensions:

Length = 15 feet

Width = 12 feet

Scale dimensions:

Length = 5 inches

Width = x inches

Write a proportion:

\dfrac{\text{Actual length}}{\text{Scale length}}=\dfrac{\text{Actual width}}{\text{Scale width}}\\ \\ \\\dfrac{15\ feet}{5\ inches}=\dfrac{12\ feet}{x\ inches}\\ \\x=\dfrac{5\ inches\times 12\ feet}{15\ feet}=4\ inches

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Then as <em>h</em> approaches 0 - bearing in mind that we're specifically considering <em>h</em> <em>near</em> 0, and not <em>h</em> = 0 - we can eliminate the factor of <em>h</em> in the numerator and denominator, so that

m_{\rm tan} = \displaystyle \lim_{h\to0}\frac{f(x+h)-f(x)}h = \lim_{h\to0}\frac{14xh+7h^2}h = \lim_{h\to0}(14x+7h) = 14x

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2 years ago
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3 years ago
State the domain of the relation {(4, 5), (2, 3), (−3, 0), (2, 1)}.
adelina 88 [10]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Which subset of the real numbers contains the square root of 50
DENIUS [597]
The first thing you should do in this case is to know that you can rewrite the expression.
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