3 years ago

Why is it necessary to choose a single frame of reference when measuring motion?

1 answer:

6 0

It is necessary to choose a single frame of reference when measuring motion because c<span>hoosing a meaningful frame of reference allows you to describe the motion in a clear and relevant manner.

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What are the zeros of the quadratic function f(x) = 6x^2 + 12x – 7?

irinina [24]

<span>6x^2 + 12x – 7 = 0

Use the quadratic formula:

$x= \frac{-b +/- \sqrt{b^2 -4ac} }{2a}$

$\frac{-12+/- \sqrt{ 12^{2} -4(6)(-7)} }{12} = \frac{-12+/-17.66}{12}$

x = 0.47 and x = -2.47
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3 years ago

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Snezhnost [94]

The answer is D. 42

A triangle equals 180 in total so what you would do it subtract 122 from 180 because 180 is also the angle of a straight line. You would get 58 then you add 58 and 80 to get 138. Subtract 138 from 180 and you get your answer of 42

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3 years ago

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11111nata11111 [884]

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3 years ago

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Y_Kistochka [10]

Answer:

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Step-by-step explanation: