A. X=3y + 15
I took the test last year
Answer:0.27881423829
Step-by-step explanation:
The volume of the can is 56.52 in³.
To find the volume of the of a cylinder (the shape of a can) you would use:
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
r²h.
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
=3.14
r²=3² (radius squared)
h=2 (height)
3.14·3²·2
28.26·2
56.52
Answer:
t= 3.1 years
Step-by-step explanation:
A = A_0 e kt
Half life(1/2) = 26 yrs
1/2 = 1_0 e^k.26
ln(1/2) = ln(e^26k)
26k. ln(e) = ln(1/2)
k = 1/26* ln(1/2)
k = -0.0267
A = A_0 e^kt
0.92 = 1.e^(-0.0267)t
ln(0.92) = ln(e^(-0.0267)t
-0.0267t .ln(e) = ln(0.92)
t = ln(0.92) / -0.0267
t = 3.122
t = 3.1years (approximate to 1 d.p)