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3 years ago

7

A group of astronomers observed light coming from a star located a distance of 331,000,000,000,000,000,000,000,000 light-years f

rom Earth. What is this distance expressed in scientific notation?

2 answers:

Nikitich [7]3 years ago

8 0

3.31 x 10^26 im pretty sure

Anika [276]3 years ago

5 0

3.31 times 10 to the 26th power

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sammy [17]

Answer:

<h2> $(f.g)x = {x}^{2} + 24x + 140$ </h2>

Step-by-step explanation:

$given \\ f(x) = x ^{2} + 10x + 21 \: and \: g(x) = x + 7$

$as \: we \: know \: (f.g)x \: is \: same \: as$

$f(g(x))$

$so \:$

$f(x + 7) = ( x + 7) ^{2} + 10(x + 7) + 21$

$f(x + 7) = {x}^{2} + 14x + 49 + 10x + 70 + 21$

$f(x + 7) = x^{2} + 24x + 140$

$therefore$

$(f.g)x = {x}^{2} + 24x + 140$

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Step-by-step explanation:

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Anastasy [175]

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