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babymother [125]
3 years ago
15

0.000309 in scientific notation

Mathematics
1 answer:
trasher [3.6K]3 years ago
3 0
Hey there :)

Writing in scientific notation means a should be
0 ≤ a < 10

Therefore, 0.000309 will be written as
3.09 x 10ⁿ

3 is the 4th decimal place value

so n = - 4

3.04 x 10⁻⁴

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The top of two poles of height's 20m and 14m are connected by the wire
Hatshy [7]

Answer:

The correct option is;

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Step-by-step explanation:

The parameters given are;

Height of the first pole = 20 m

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The vertical height subtended by the inclined wire, h = The difference in height between the two poles = 20 - 14 = 6 m.

Let the horizontal distance between the two poles = D

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D = \dfrac{6}{tan(30 ^{\circ}) }  = 10.39 \ m\approx 10 \ m

The correct option is 10 m.

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3. Solve for the new y

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<u>Step 4:</u>

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