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3 years ago

Julie started solving the equation 3=4+2(3−)

Mathematics

1 answer:

ziro4ka [17]3 years ago

8 0

Next step: Applying distributive property

<h2>Explanation:</h2><h2></h2>

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<em>The correct question is the following:</em>

<em />

<em>Julie started solving the equation 3x=4+2(3−x). which is a correct next step?</em>

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Step 1. Apply distributive property:

$3x=4+2(3-x) \\ \\ 3x=4+6-2x$

Step 2. Add 4 and 6

$3x=4+6-2x \\ \\ 3x=10-2x$

Step 3. Add 2x to both sides

$3x+2x=10-2x+2x \\ \\ 5x=10$

Step 4. Divide both sides by 5

$\frac{5x}{5}=\frac{10}{5} \\ \\ x=2$

<h2>Learn more:</h2>

Distributive property: brainly.com/question/10794694

#LearnWithBrainly

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Earth has a mass of 5.97 x 1024 kg, and a mean radius of 6.38 x 106 m. what is the orbital speed of a satellite 6.16 x 108 m abo

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The first thing you should know is that the gravitational force is:
F = GMm / r ^ 2
Then, by definition, the force is equal to
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We match both expressions:
GMm / r ^ 2 = mv ^ 2 / r
Let's clear the speed:
v = (GM / r) ^ (1/2)
On the other hand:
r = R + h
Substituting:
v = (GM / (R + h)) ^ (1/2)
Where,
G = 6.67x10 ^ -11 n · m2 / kg2
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h = 6.16 x 10 ^ 8 m
Substituting the values:
v = ((6.67 * 10 ^ -11) * (5.98 * 10 ^ 24) / ((6.38 * 10 ^ 6) + (6.16 * 10 ^ 8))) ^ (1/2)
v = 800m / s
answer:
<span> the orbital speed of a satellite 6.16 x 108 m above the surface of the earth is
</span><span> a. 800m/s
</span>

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