3 years ago

Is 4,000,000,000mm = 4km

Mathematics

1 answer:

ella [17]3 years ago

7 0

1 кm = 1 000 000 mm ⇒ 4 000 000 000 : 1 000 000 = 4 000 km

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The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

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is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

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$x^2 + 7x - 60 = 0$

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Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

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