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Ne4ueva [31]
3 years ago
12

(4*10^2)(2*10^5) written in scientific notation

Mathematics
2 answers:
Akimi4 [234]3 years ago
8 0
<span>(4*10^2)(2*10^5)
= 8 x 10^7

hope it helps</span>
vagabundo [1.1K]3 years ago
7 0
4x10^2 = 400

2x10^5 = 200,000

Let me know if this helped?..
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Find the value of x to the nearest tenth.<br> tan 34° = 20
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Answer:

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Step-by-step explanation:

<u>In this question x is missing.</u>

<u>So, the question would be:</u>

<u>tan 34° = x/20.</u>

Now, to find the value of x:

tan 34 = \frac{x}{20}

\frac{x}{20} = tan 34

Multiplying both sides by 20 we get:

x=tan 34\times 20

On simplifying both sides we get:

x=13.49

So, to get the value of x=13.49 to nearest tenth is 13.5. As we see in hundredth place it is 9 and 4 in tenth place, so after rounding to tenth place 4 will change to 5 so the value is 13.5.

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2 years ago
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Vinvika [58]

Answer:

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Step-by-step explanation:

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(4 x)/5 - (2 x)/3

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(12 x)/15 - (10 x)/15

(12 x)/15 - (10 x)/15 = (12 x - 10 x)/15:

(12 x - 10 x)/15

12 x - 10 x = 2 x:

Answer: (2 x)/15

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