Answer:
67.5
Step-by-step explanation:
mark brainliest
Answer:
f(x) = 1500(0.97)ˣ
Step-by-step explanation:
Given that:
f(x) = abˣ
a is the initial bone density, that is the bone density at 0 years, x is the number of years and b is any real value. For an exponential growth, b > 1 while for an exponential decay, b < 1.
Since the bone has a current density of 1,500 kg/m³, hence a = 1500.
The density is lost at a rate of 3% annually, therefore b = 100% - 3% = 97% = 0.97.
Therefore substituting the values of a and b into the function gives:
f(x) = 1500(0.97)ˣ
3.9 x 10^33 ergs/second * 2.45 x 10^5 seconds
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9.555 x 10^38 ergs
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Step-by-step explanation:
Area = l × b
= 9ft × 8ft
= 72ft²
