A 40 gram sample of a substance that's used for drug research has a k-value of
0.1472.
N = Noe
-kt
No = initial mass (at time t = 0)
N = mass at time t
:
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days

answer: (3,11) is your answer.

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q