Which is the best estimate for StartFraction (8.9 times 10 Superscript 8 Baseline) Over (3.3 times 10 Superscript 4 Baseline) EndFraction written in scientific notation?

Respuesta :

Answer:

[tex]2.7 * 10^{4}[/tex]

Step-by-step explanation:

Given the expression [tex]\frac{8.9*10^{8} }{3.3*10^{4} }[/tex], to express the the fraction in scientific notation, we will apply the law of indices below;

According to one of the laws of indices, [tex]\frac{a^{m} }{a^{n} } = a^{m-n}[/tex]

Applying this to the fraction;

[tex]= \frac{8.9*10^{8} }{3.3*10^{4} }\\\\= \frac{8.9}{3.3} * \frac{10^{8} }{10^{4} }\\\\ = \frac{8.9}{3.3} * 10^{8-4}\\\\ = \frac{8.9}{3.3} *10^{4}\\\\ = 2.697 * 10^{4}[/tex]

The best estimate for the fraction in scientific notation will be [tex]2.7 * 10^{4}[/tex]

The correct answer is

C) 3 x 10^4

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