What is the extra information in the following problem?
2 answers:
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Answer:
a.
b.
c.
d.
Step-by-step explanation:
Given that there are two laptop machines and four desktop machines.
On a day, 2 computers to be set up.
To find:
a. probability that both selected setups are for laptop computers?
b. probability that both selected setups are desktop machines?
c. probability that at least one selected setup is for a desktop computer?
d. probability that at least one computer of each type is chosen for setup?
Solution:
Formula for probability of an event E can be observed as:
a. Favorable cases for Both the laptops to be selected = = 1
Total number of cases = 15
Required probability is .
b. Favorable cases for both the desktop machines selected =
Total number of cases = 15
Required probability is .
c. At least one desktop:
Two cases:
1. 1 desktop and 1 laptop:
Favorable cases =
2. Both desktop:
Favorable cases =
Total number of favorable cases = 8 + 6 = 14
Required probability is .
d. 1 desktop and 1 laptop:
Favorable cases =
Total number of cases = 15
Required probability is .
Answer: So our limit is 1 million attempts.
a) 6 lower case letters.
Think in 6 blank spaces where you can put one letter, so in each space you have 26 options, so the total of combinations is = 308915776.
so if you have 1 million attempts, then 1000000/308915776 = 0.00323
so you have 0.32% chances of breaking the code.
b) 6 different letters, some may be upper-case, and it is case-sensitive
Again 6 blank spaces, in the first you can put 26 letters, and because its case sensitive, you have 52 options, in the second space, you will have 25 posible letters, and 50 options, and so on.
So the total combinations are 52*50*48*46*44*42 = 10608998400
and the probability of breaking it with 1 mill attempts is = 0.009%
(c) any 6 letters, upper- or lower-case, and it is case-sensitive
same as the first case, but here you have 26 lower case and 26 upper, so you have = 19770609664 combinations
and in 1 mill attempts the probability of breaking it is 0.0005%
(d) any 6 characters including letters and digits
Here you have 26 letters and 10 numbers, so the total combinations are :
= 2176782336
and the probability of breaking it will be 0.004%
were in all cases you must think that each attempt made by the spyware is a different combination, so the one million tries are different combinations.
Answer:
The s represents the y-intercept of the graph.
The 100t in the equation means the initial velocity of the rockey is 100
Step-by-step explanation:
According to the text and graph.
The s reprecets the yintexept of the graph
h(t)=5+100t-16t²
h(t)=100-32t
k(0)=100
in terms of the rocket The 100t in the equation means the initial velocity of the rockey is 100
read the image for the rest
