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borishaifa [10]
3 years ago
5

What is an equation to show the relationship between 7 meters and 0.007 kilometers

Mathematics
2 answers:
Likurg_2 [28]3 years ago
8 0

Answer:

7 meter = 7/1000 kilometer

That is, 7 meter = 0.007 meter

Step-by-step explanation:

1000 meters = 1 kilometers

therefore 1 meter = 1/1000 kilometer = 0.001 kilometer

Therefore 7 meters = 7/1000 = 0.007 kilometers

Dafna11 [192]3 years ago
6 0

Answer:

1 kilometer = 1000 meters

or

0.001 kilometers = 1 meter

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The answer is x equals 24
you set up a proportion new over old
so for red cars 40 over 5
since we don’t know the new for blue cars we’ll use x
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we then make them equal to each other
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Answer: acute angle, straight line

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3 years ago
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Prove Euler's identity using Euler's formula.<br> e^ix = cos x + i sin x
Korolek [52]

First list all the terms out.

e^ix = 1 + ix/1! + (ix)^2/2! + (ix)^3/3! ...

Then, we can expand them.

e^ix = 1 + ix/1! + i^2x^2/2! + i^3x^3/3!...

Then, we can use the rules of raising i to a power.

e^ix = 1 + ix - x^2/2! - ix^3/3!...

Then, we can sort all the real and imaginary terms.

e^ix = (1 - x^2/2!...) + i(x - x^3/3!...)

We can simplify this.

e^ix = cos x + i sin x

This is Euler's Formula.

What happens if we put in pi?

x = pi

e^i*pi = cos(pi) + i sin(pi)

cos(pi) = -1

i sin(pi) = 0

e^i*pi = -1 OR e^i*pi + 1 = 0

That is Euler's identity.

3 0
3 years ago
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xz_007 [3.2K]
No clue if this is right

5 0
3 years ago
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