coleman310
24.04.2021 •
Mathematics
After the release of radioactive material into the atmosphere from a nuclear power plant in a country in 1998, the hay in that country was contaminated by a radioactive isotope (half-life 7 days). If it is safe to feed the hay to cows when 9% of the radioactive isotope remains how long did the farmers need to wait to use this hay?
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Ответ:
Step-by-step explanation:
B ----> Base Area
Base is triangle
base = b = 10 in
height = h = 6 in
Area of base B =
B = 30 in²
H = 15 in
Volume of triangular prism = BH
= 30 * 15
= 450 in³