What is 5p to the -7 power/20p to the 2 power simplified

p^(-9) or 1/p^9

Step-by-step explanation:

Here we have:

  (5p)^(-7)

   (20p)^2

Let's temporarily remove the coefficient 5/20 and reduce it to 1/4.

then we have:

            1                             1               1

(1/4)  = (1/4) =

       p^7*p^2               p^(7 + 2)         p^9

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)