Answer:
<h3>0.36 x 10⁰</h3>
Step-by-step explanation:

Taking natural logs of both sides, we get
0.015t=ln 3
t = ln 3/0.015 = 73.24
The answer is 73.24 years.
(m^3)^-1 (x^2)^5 = (m^-3) (x^10) = x^10 / m^3
Imagine a right triangle where a and b are the legs and c is the hypothenuse.
Pitagora: a²+b²=c²
Divide by c
(a/c)²+(b/c)²=1
But a/c=sin(B) and b/c=cos(B)
Thus sin² + cos² = 1