Answer:
Mr. Chang will have 15714.90 dollars.
Step-by-step explanation:
p = 650
r =
Number of periods or n =
Future value formula is :
Putting the values in formula we get;
= $15714.90
Hence, Mr. Chang will have 15714.90 dollars.
80+ 80= 160 miles
160 miles/ 7 hours= 22.857 miles per hour
From the statement you can find the function that represents the percent of strontium-90 that remains after t years of the nuclear accident.
Call P the percent:
---> P = e ^ (- 0.025t)
Now you can also estimate the half-life of the isotope strontium-90:
Call Pi the initial percent and P2 the half percent:
P2 = 0.5 * P initial =>
P2 = 0.5 * Pinitial = Pinitial * e ^ (-0.025 t)
=> 0.5 = e ^ (-0.025t)
=> ln 0.5 = -0.025t
=> t = - ln (0.5) / 0.025
=> t = 27.7 years <----- half-time
9 AND 35 OVER 100 i think
Answer:
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation , the sample means with size n of at least 30 can be approximated to a normal distribution with mean and standard deviation
In this problem, we have that:
So