Answer:
1.8 hours
Step-by-step explanation:
The number of combinations is 6^4 = 1296. At one every 5 seconds, it will take 5·1296 = 6480 seconds to try them all. There are 3600 seconds in an hour, so that is ...
(6480 s)/(3600 s/h) = 1.8 h
It will take 1 hour and 48 minutes to try them all.
Answer:
C.)
Step-by-step explanation:
Since we are given the radius of the cone's base and the slant height, we can use the following equation to solve for surface area:
Now we just plug in the given information and solve:
Answer:
Step-by-step explanation:
8 cm and the height is 15 cm.
If the amount of members are y, then the total number of people who attend is x+y=19. In addition 11*y (since it costs 11 dollars per member)+13*x=209. Subtracting x from both sides in the first equation, we get y=19-x. Plugging that into the second equation, we get (19-x)*11+13*x=209. Multiplying it out, we get 201-11x+13x=209. Subtracting 201 from both sides, we get 2x=8 and by dividing both sides by 2 we get x=4
Answer:
P=0.05 or 5%
Step-by-step explanation:
The formula to calculate the probability in a continuous uniform distribution is:
Where a is the lower value of the limits of the distribution (a=47.0), b is the upper value of the limit of the distribution (b=57.0), c It is the lowest value in the range from which probability is calculated (c=50.75) and d It is the highest value in the range from which probability is calculated (d=51.25).