Is there any way you can zoom out the graph more?
Answer:
(1)
(3)t=16.93 years
Step-by-step explanation:
For a Principal Saved at Compound Interest, the Amount accrued is derived by the function:
When:
(1)P=$318,000
r=7%=0.07
(2)See Attachment
(3)If Tony's goal is to save $1,000,000.
(4)The graph confirms the result as the $1000000 Mark on the y-axes occurs almost at x=17
Step-by-step answer:
assuming the true-false test have equal probabilities (each 0.5), we can use the binomial probability to calculate the sum of probabilities of getting 10, 11 or 12 questions correctly out of 12.
p=probability of success = 0.5
N=number of questions
x = number of correct answers
then
P(x) = C(N,x)(p^x)((1-p)^(N-x))
where C(N,x) = N!/(x!(N-x)!) = number of combinations of taking x objects out of N.
P(10) = C(12,10)(0.5^10)((1-0.5)^2) = 33/2048 = 0.01611
P(11) = C(12,11)(0.5^11)((1-0.5)^1) = 3/1024 = 0.00293
P(12) = C(12,12)(0.5^12)((1-0.5)^0) = 1/4096 = 0.00024
for a total probability of 79/4096 = 0.01929
2:50
1:14
0:14
--------
4:18 hours
They came back at 2:45
So, the movie started at 11:27 AM
