2 years ago

Use a bar model 20-x=6

Mathematics

1 answer:

irinina [24]2 years ago

4 0

Answer:

sdffaf

Step-by-step explanation:

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Which ordered pair is a reflection of (3, 7) across the y-axis?

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Answer:

(-3, 7)

Step-by-step explanation:

It is like putting a mirror on the y-axis. It is asking what point is the photo negative of the point, like a mirror. You see yourself in the mirror but everything is opposite. Your right hand is your left. So which point is the photo negative of (3, 7)? (-3, 7) Because it is only across the y-axis, the y value stays the same.

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1 year ago

The formula f equals c over lambda, where f = frequency, c = wave speed, and λ = wavelength, is used to calculate frequency. Sol

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Answer:

B. c = fλ

Step-by-step explanation:

The given equation is

$f=\frac{c}{\lambda}$