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Bogdan [553]
3 years ago
5

Find the value of the expression below. Express your answer in scientific notation.

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

The value of the expression is 8.8 \times 10^{-2}.

Solution:

Given expression:

$\frac{\left(4.8 \times 10^{8}\right)}{\left(1.2 \times 10^{4}\right)} \times\left(2.2 \times 10^{-6}\right)

<u>To find the value of the given expression:</u>

Using exponent rule: a^m\times a^n=a^{m+n}

$\Rightarrow\frac{\left(4.8 \times 10^{8-6}\right)}{\left(1.2 \times 10^{4}\right)} \times\left(2.2 \right)

$\Rightarrow\frac{\left(4.8 \times 10^{2}\right)}{\left(1.2 \times 10^{4}\right)} \times\left(2.2 \right)

Using exponent rule: \frac{a^m}{a^n} =a^{m-n}

$\Rightarrow\frac{\left(4.8 \times 10^{2-4}\right)}{1.2} \times 2.2

$\Rightarrow\frac{\left(4.8 \times 10^{-2}\right)}{1.2} \times 2.2

Since \frac{4.8}{1.2}=4

$\Rightarrow(4 \times 10^{-2})\times 2.2

$\Rightarrow 8.8 \times 10^{-2}

Hence the value of the expression is 8.8 \times 10^{-2}.

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