Question

Help me answer this please and also my other question​

Answer 1

`\bf P(t)=(1)/(1+15(2.1)^(0.3t))`

Now

`\\ \sf\longmapsto P(4)=(1)/(1+15(2.1)^(0.3(4)))`

`\\ \sf\longmapsto P(4)=(1)/(1+15(2.1)^(1.2))`

`\\ \sf\longmapsto P(4)=(1)/(1+15(2.4))`

`\\ \sf\longmapsto P(4)=(1)/(1+36)`

`\\ \sf\longmapsto P(4)=(1)/(37)`

And

`\\ \sf\longmapsto P(10)=(1)/(1+15(2.1)^(0.3(10)))`

`\\ \sf\longmapsto P(10)=(1)/(1+15(2.1)^10)`

`\\ \sf\longmapsto P(10)=(1)/(1+15(9.2))`

`\\ \sf\longmapsto P(10)=(1)/(1+138)`

`\\ \sf\longmapsto P(10)=(1)/(139)`