2 years ago

Match the equation with its graph . identify the slope and y-intercept y= -2/3x+1

Mathematics

1 answer:

harkovskaia [24]2 years ago

3 0

Answer:

the slope is -2/3x and the y intercept is 1

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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The length of a rectangle is eight more than triple the width. If the perimeter is 168 inches, find the dimensions.

defon

Answer:

P= 2(3W + 7) + 2(W) = 110.

P= 6W + 14 + 2W = 110.

= 8W + 14 = 110.

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2 years ago

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3 years ago

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

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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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3 years ago

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