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Hunter-Best [27]

3 years ago

10

Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 470 rpm, and the piece of dust is 4.2 cm from the ce

nter, what is the total distance (in m) traveled by the dust in 4 minutes? (Ignore accelerations due to getting the CD rotating.) m

1 answer:

Lerok [7]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

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Brilliant_brown [7]

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Simplify the expression. State any excluded values.<br><br> x^ 2 - 36/42x - 7x^ 2

REY [17]

Consider the expression $x^2-\dfrac{36}{42}x-7x^2.$

This expression contains two terms with $x^2,$ group them:

$x^2-7x^2=x^2(1-7)=-6x^2.$

Now simplify term $\dfrac{36}{42}x=\dfrac{6}{7}x.$

Now $x^2-\dfrac{36}{42}x-7x^2=-6x^2-\dfrac{6}{7}x=6\left(-x^2-\dfrac{1}{7}x\right)=-6x\left(x-\dfrac{1}{7}\right).$

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3 years ago

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Elanso [62]

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Step-by-step explanation:

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