Question

@perl

Answer 1

the first and third ones are the only true ones right? @perl

Answer 2

correct

Answer 3

@perl

Answer 4

thanks(:

Answer 5

http://www.wolframalpha.com/input/?i=solve+dy%2Fdt+%3D+-k*y%2C+y%280%29+%3D+150

Answer 6

I used y instead of M, but it comes out the same

dM/dt = -kM

is equivalent to

dy/dt = -ky

Answer 7

yay, thank you (:

Answer 8

just wondering, are you getting these correct?

Answer 9

i wont know until the end(: its a 45 question assignment but im only listing the ones that i put question marks next to cause i was iffy on them, i have like 4 more questions that i wasnt sure