The answer is 4 hope this helps
Answer:
Step-by-step explanation:
48+32x=-176
32x=224
x=7
Answer:
y= 1/3x - 1
Step-by-step explanation:
1/3 is slope so m and -1 is the y-intercept
2^3 = 8
3^2 = 9
5^2 = 25
2^5 = 32
(5^2 = 5*5 = 25)
(2^5 = 2*2*2*2*2 = 32)
Answer:
5.5 min
Step-by-step explanation:
At time t=0 you have 72 grams
at time t = 22 min you have 4.5 grams.
Now
4.5/72 = (1/2)^(t/half-life)
and t=22, so
4.5/72 = (1/2)^(22/half-life)
taking log of both sides:
log(4.5/72)=(22/half-life)log(1/2)
solving for half-life gives half-life = 11/2 = 5.5min
