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creativ13 [48]
3 years ago
15

Element X is a radioactive isotope such that every 28 years, its mass decreases by

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
5 0

Answer:

21

Step-by-step explanation:

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Sunny_sXe [5.5K]

You did not provide any question. I will give general advice.

Pythagorean Theorem: a² + b² = c²

If you know two sides, you know ll three sides.

A house sits in the shade.

The house is 18 feet tall. The shadow is 24 feet long. What is the hypotenuse of this triangle?

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