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Stella [2.4K]
3 years ago
7

The distance from Mercury to the Sun is 28.5 million miles. The distance from Neptune from the Sun is 2.8 billion miles. Express

the distance between Mercury and Neptune in scientific notation.
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
8 0
2.79715 times 10 to the tenth power
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blsea [12.9K]

Answer:

a. (3x^4 + 6 ) + (2x^2)

b. (X^3 ) + (-x -7)

c. (4.6x^4) + (-1.5x^2)

Step-by-step explanation:

For the first one, we have to write to polynomials, which equal 3x^4 + 2x^2 +6

One possible solution is (3x^4 + 6 ) + (2x^2)

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(X^3 ) + (-x -7)

And finally for c, we can write,

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Dmitriy789 [7]

Answer/Step-by-step explanation:

2x-5y=9

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Divide each term in 2x=9+5y by 2

\frac{2x}{2} =\frac{9}{2} +\frac{5y}{2}

Cancel the common factor of 2.

Divide x by 1.

x=\frac{9}{2} +\frac{5y}{2}

y=\frac{-9}{5} +\frac{2x}{5}

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3x+4y=2

Add 4y to both sides of the equation

3x=2+4y

Divide each term by 3 and simplify.

Divide each term in 3x=2+4y by 3.

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Cancel the common factor of 3.

Divide x by 1.

x=\frac{2}{3} +\frac{4y}{3}

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Answer:

Step-by-step explanation:

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The LCM is 2x2x2x7 factorized
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