Answer:
For the one with the 2.5 radius the circumference is 15.7 and the answer for the one with 9 diameter is 28.26
Step-by-step explanation:
Since c=2(pi)(radius)
half of the diameter is the radius and pi=3.14
Find how many half lives have passed
seems we are measuring in days
half life formula is as follows
A=final amount
P=initial amount
t=time in a certain units (this time, it's days)
h=time of half life
so
we are given that P=1, A=0.6, t=3
find h
subsitute
take ln of both sides
multiply both sides by h
divide both sides by ln(0.6)
use your calculator
h≈4.07075
so about 4 days is the half life
Answer:
176 hours
Step-by-step explanation:
They work 176 hours because
22*8=176
Step 1
calculate the value for i=1
=(4*(1/2)<span> ^(1-1))---> 4
step 2
</span>calculate the value for i=2
=(4*(1/2) ^(2-1))---> 2
step 3
calculate the value for i=
=(4*(1/2) ^(3-1))---> 4*(1/4)---->1
step 4
find the sum
(4+2+1)=7
Answer:
Step-by-step explanation:
These represent the points on the graph with w as the x-axis and l as the y -axis. You only need two pairs to make a line, but it is always best to use a 3rd point as a check.