12 outcomes
1-heads or tails
2-heads or tails and so on
6*2=12
Answer:
The area = 19.635
Step-by-step explanation:
........
Answer:
$6.25
Step-by-step explanation: 10/8=1.25 1.25*5=6.25
Answer:
Ok, an exponential decay is written as:
P(t) = A*(1 - r)^t
Where A is the initial population, r is the rate of decay and t is the unit of time.
We know that the initial population is 15g
then:
P(t) = 15g*(1 - r)^t
And at t = 3hs, the populations is 5g
P(5h) = 5g = 15g*(1 - r)^5
5/15 = 1/3 = (1 - r)^5
(1/3)^(1/5) = (1 - r) = 0.8
Now, the half life time of the sustance is t = x, such that the population reduces to it's half:
P(x) = A/2 = 15g/2 = 7.5g
Then:
7.5g = 15g*0.8^x
7.5g/15g = 1/2 = 0.8^x
Now, remember that if we have:
a = b^x
then
x = ln(a)/ln(b)
ln(1/2)/ln(0.8) = x = 3,11 hours
Answer:
the experimental probability is 1/5
Step-by-step explanation:
This is because one to calculate the experimental probability one has to divide the favorable events over the possible events, and those that Talia did were the favorable events divided the non-favorable events
20 heads and 80 tails
Faborable events = 20
Possible events = 20 + 80 = 100
20/100 = 1/5
