4 years ago

Choose the correct simplification of (9x3y2)2

Mathematics

1 answer:

egoroff_w [7]4 years ago

6 0

$\bf (9x^3y^2)^2\implies \stackrel{\textit{distributing the exponent}}{(9^2x^{3\cdot 2}y^{2\cdot 2})}\implies 81x^6y^4$

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Kailey wrote 8,912,000 in scientific notation as 89.12 times 10 Superscript 5. Which statement best describes Kailey's work? Kai

hodyreva [135]

Answer:

D. Kailey is not correct: $89.12 \times 10^5$ is not written in scientific notation.

Step-by-step explanation:

We have been given that Kailey wrote 8,912,000 in scientific notation as $89.12 \times 10^5$ . We are asked to choose the statement that best describes Kailey's work.

We know that to convert a number into scientific notation, we write the given number as product of two numbers. One factor is a number between 1 and 10, while the 2nd factor is power of 10.

Upon looking at $89.12 \times 10^5$ , we can see that 1st factor is 89.10, which is greater than 10. This means that Kailey did not write 8,912,000 in scientific notation.

Therefore, option D is correct choice.

4 0

4 years ago

Read 2 more answers

Please help me thank u so much

Jet001 [13]

Answer:

$\frac{3}{8} fraction \: of \: geckos$