2 years ago

Which is the best estimate for the height of a tall tree?

Mathematics

1 answer:

Ksivusya [100]2 years ago

6 0

A.) 100 Feet ...............

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What is the y-intercept of the graph of the line whose equation is y=3/4x+1

Tanzania [10]

Answer:

The correct answer is "1".

Step-by-step explanation:

You need only set x to zero, and solve for y:

$y = \frac{3}{4} x + 1\\y = \frac{3}{4}0 + 1\\y = 1$

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2 years ago

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valentinak56 [21]

Multiply 2/3 by 84 which is 56.

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Answer:

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Step-by-step explanation:

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2 years ago

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Gwar [14]

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Step-by-step explanation:

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A beam of light from a monochromatic laser shines into a piece of glass. The glass has thickness L and index of refraction n=1.5

boyakko [2]

Additional information to complete the question:

How long does it take for a short pulse of light to travel from one end of the glass to the other?

Express your answer in terms of some or all of the variables f and L. Use the numeric value given for n in the introduction.

T = ___________ s

Answer:

$T = \frac{15}{f}$

Step-by-step explanation:

Given:

Thickness og glass = L

Index of refraction n=1.5

Frequency = f

$Wavelength = \frac{L}{10}$

λ(air) $= \frac{L}{10}$

λ(glass) = λ(air) / n

= $\frac{\frac{L}{10}}{1.5}$

= $\frac{L}{10} * \frac{1}{1.5}$

= $\frac{L}{15}$

V(glass) = fλ(glass)

$= f * \frac{L}{15}$

$T = \frac{L}{V_{glass}} = \frac{15}{f}$

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2 years ago