Answer:
Step-by-step explanation:
negative b plus or minus the square root of b squared minus four times a times c all over 2a
Answer:
2 hours and 20 minutes
Step-by-step explanation:
You set it up like:
5.4days x (24 hours/1 day) x (60 minutes/1 hour)
you get 7776 minutes
This is a case of binomial distribution. The formula used in
calculations for binomial probability is:
P = nCr p^r
(1-p)^(n-r)
Where,
P = probability
nCr = combinations of
r from n possibilities
p = success rate = 40%
= 0.40
n = sample size = 10
<span>1st: Let us
calculate for nCr for r = 8 to 10. Formula is:</span>
nCr = n! / r! (n-r)!
10C8 = 10! / 8! 2! = 45
10C9 = 10! / 9! 1! = 10
10C10 = 10! / 10! 0! = 1
Calculating for probabilities when r = 8 to 10:
P (r=8) = 45 * 0.4^8 (0.6)^2 = 0.0106
P (r=9) = 10 * 0.4^9 (0.6)^1 = 0.0016
P (r=10) = 1 * 0.4^10 (0.6)^0 = 0.0001
Total probability that at least 8 were married = 0.0106 + 0.0016
+ 0.0001
Total probability
that at least 8 were married = 0.0123
<span> </span>
Answer:
13.64 litres
Explanation
Since 1 gallon = 4.546 litres
Therefore...3 gal
; 3 × 4.546 = 13.64 litres