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sineoko [7]
3 years ago
14

9 Apply index law three to simplify each of the following. a (m2) b 6(p^)

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

  • <u><em>See the law and the hypothetical example below.</em></u>

Explanation:

The <em>index law</em> that you are dealing with is:

            \dfrac{a^m}{a^n}=a^{m-n}

It is used when you have the quotient of powers with the same base.

To show you how to use that rule, let's work an example

Simplify:

              \dfrac{9a(m^2)}{6b(m^4)}

Factor 9 as 3² and 6 as 2×3:

         \dfrac{3^2a(m^2)}{2\times 3b(m^4)}

Group the factor with equal base:

           \dfrac{a}{2b}\times \dfrac{3^2}{3}\times \dfrac{m^2}{m^4}

Use the index law:

            \dfrac{a}{2b}\times {3^{(2-1)}}\times m^{(2-4)}\\\\\\ \dfrac{a}{2b}\times3\times m^{-2}\\\\\\\dfrac{3a}{2bm^2}

Note that it was used an additional rule:           a^{-n}=\dfrac{1}{a^n}

Thus,           m^{-2}=\dfrac{1}{m^2}

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Answer / Step-by-step explanation:

Before we start to answer this question, it would be nice to understand some basic definition and principles:

Random: This refers to an unpredictable pattern of arrangement.  Without a specific aim or logical procedural pattern.

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Now that we have a brief knowledge of the key terms within the question, hence, to start answering the question,

(a) Starting with 0 for Alice, Bob can choose any number starting from   1 /  3 . As Alice increases, Bob has to increase his starting point as well. Therefore, after Alice passes  1 /  3 , Bob can start choosing numbers from 0. This creates 2 triangles with sides  1  / 3 . The area of them gives us the probability.

Therefore, : P = 2 ( 1/3 1/3 1/3)

                        = 4/9

(b) We can find the probability of having both the numbers less than  1  / 3 . Then we subtract this probability from 1.

We have: P = 1 - 1/3 . 1/3

                     = 8/9

(c) This is basically impossible as the area of a dot is negligible.

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Therefore: P = 1 - 1 /3

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3 years ago
a 18 ft tall statue standing next to a globe casts a 12 ft shadow. Of the globe casts a shadow that is 2 ft ling, then how tall
Igoryamba
<h3>Answer:</h3>

3 ft

<h3>Step-by-step explanation:</h3>

The statue's height is 1.5 times the length of its shadow, so we expect the same relationship for the globe.

... 1.5 × 2 ft = 3 ft

_____

<em>Comment on the problem</em>

As a practical matter, with the sun high enough in the sky to cast a shadow shorter than the object's height, it will be quite difficult to measure the length of the shadow of the point at the top of the globe. The shadow of other parts of the globe will interfere.

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