Question

Help! I need a correct answer and explanation please! I will mark brainliest!

Answer 1

Answer:

$1.61*10^{8} \\and\\3.3*10^{-7}$

Step-by-step explanation:

We can use properties of exponents to solve these equations. Remember that when multiplying exponents, we 'add' them.

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$(2.3*10^{1})(7*10^{6})= \\16.1*10^{7}=\\1.61 *10^{8}$

For the next question:

$(1.1*10^{-5})(3*10^{-2})=\\ 3.3*10^{-7}$

These are your answers!

Answer 2

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$

Given

2.3 × $10^{1}$ × 7 × $10^{6}$

= 2.3 × 7 × $10^{(1+6)}$

= 16.1 × $10^{7}$

= 1.61 × $10^{1}$ × $10^{7}$

= 1.61 × $10^{8}$

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1.1 × $10^{-5}$ × 3 × $10^{-2}$

= 1.1 × 3 × $10^{(-5-2)}$

= 3.3 × $10^{-7}$