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sergiy2304 [10]
4 years ago
13

9*-0^2 is blank times as much as 3*10-^2

Mathematics
1 answer:
sveta [45]4 years ago
5 0
<h2>Explanation:</h2><h2></h2>

As I understand the question you have the following expressions given in scientific notation:

<u>Expression A:</u>

<u></u>

<u></u>9\times10^2<u></u>

<u></u>

<u>Expression B:</u>

<u></u>

<u></u>3\times10^{-2}<u></u>

<u></u>

So we need to compare both expression in order to know how much times is expression A bigger than B. So:

\frac{9\times 10^2}{3\times 10^{-2}}=\frac{9}{3}\times10^{2-(-2)}=3\times 10^4=30,000 \\ \\ \\ *\frac{a^n}{b^m}=a^{n-m}

In conclusion 9\times10^2 is 30,000 times as much as 3\times10^{-2}

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Answer:

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Step-by-step explanation:

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Given a second order polynomial expressed by the following equation:

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This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

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x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

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In this question:

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So

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x_{1} = \frac{-(-3) + \sqrt{5}}{2*1} = 2.62

x_{2} = \frac{-(-3) - \sqrt{5}}{2*1} = 0.38

2.62 is between 2 and 3.

0.38 is between 0 and 1.

So the correct answer is:

a) between -1&0, 0&1 and 2&3

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