<span>As we know that the
k = ln(2)/t½
so putting values
= ln(2)/5556 years
</span><span> =0.6931471/5556
</span> =0.0001247565yr⁻
5 - x = 4
Subtract x from both sides.
5 - x + x = 4 + x
5 = 4 + x
Subtract 4 from both sides.
5 - 4 = 4 + x - 4
Hence, the answer:
x = 1
To find the surface area of a composite 3D figure, add the areas of each geometric figure making up the composite 3D figure. To find the volume of a composite 3D figure, draw any necessary planes to view the figure as basic three dimensional figures, then: add basic figure volumes belonging to the composite shape.
19.6666667 is what i calculated:)
