Primitve function question help (1 Viewer)

[enigma_1]

See the next attachment, not this one
thanks

 

[alficio]

Integrate both sides to get.....
dp/dt =-30(t^-4)
Integrating both sides
p= (-30t^-3)/-3 + c
p=10t^-3 + c
subs in t=2, p=5.25
therefore c=4

Just subs in t=5 for five days
Look at the 10t^-3 for the last part

Just wondering what textbook is this from?