Answer:
Step-by-step explanation:
Hence, the surface area of a triangular pyramid is 140 square units.
There will be a 25 grams left after 3240 years.
The half-life of Radium-226 is 1620 years. If we divide 3240 by 1620 the answer is 2. So that means the amount of Radium-226 will divide in half twice.
100 / 2 = 50 / 2 = 25
Answer:
2
Step-by-step explanation:
15+12=27
54 / 27 = 2
The answer would be -5x-20+15/10
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