IT should have 27 electrons
$108
Step-by-step explanation:
If 48 hats costs $192;
Then 1 hats would cost $4.
So therefore 27 hats would cost $108 i.e. 27 times $4
No it is not. The 1/2 power is the equivalent to the square root, but it is not equivalent to dividing by 2.
Answer:
The shorter piece is 24 inches long
Step-by-step explanation:
When cut into 2 pieces, the longer piece is 48 inches, twice the size of the smaller one, thus the answer is 24 inches
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
