Answer:
8
4 gets cancelled by 2 for times i.e
4
=8
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
Answer:
A is 3/1, B is 242/1 C is 36/1 D is 101/1
Step-by-step explanation:
Because when you know two lines are perpendicular you know all angles are 90 degrees and also any other lines you put through them you can figure out the angle and the other things because of that set rule of perpendicular lines having always 90 degree angles