This type of combination problem involves combined probability, or the chance that a specific set could be chosen based on the probability of multiple variables.
The number that could be generated follows the example:
XXYZZZZ
where X describes a letter, and Y describes a number that isn’t zero, and Z describes any number.
Two probabilities exist in this situation, depending on the circumstances of the question. By pressing any number once, only 8 letters can be used (ten digits, minus the one and two keys, since they don’t have letters). This means that the probability of this event is:
8 x 8 x 9 x 10 x 10 x 10 x 10
where the two eights are for the letters, the nine is for the digit that isn’t zero, and the tens are for any numbers from the keypad. This permutation yields 5,760,000 choices.
If you are allowed to press the numbers more than once to generate a letter, then the probability changes to account for the entire alphabet. The new probability of this event is :
26 x 26 x 9 x 10 x 10 x 10 x 10
where this permutation yields 60,840,000 choices.
Hope this helps!
Answer:
Step-by-step explanation:
The population at various days is as follows since population triples every 3 days
<u>Day</u> <u>Population</u>
0 10
3 30
6 90
9 270
.... ......
This can be modeled by the general equation
where
is the population after t days
is the population at start (10)
is the rate at which population changes ie 3
is the number days from start
is the number of days at which the population triples(here k =3 days)
We can check this by plugging in values for each of the variables
At day 0, population = 10(3)⁰ = 10. 1 = 10
Similarly populations for days 3, 6, 9 are:
F f f. Fbtbtbt bzubshbsbydby
それでも、日本人の食生活も急速に変化してきています。それでも、日本人の食生活も急速に変化してきています<span>。</span>
Answer:The answer: Bob has 15 dogs
Step-by-step explanation If Jake has 3 dogs and Bob has five times that amount it would be a simple 3 x 5 equation. because five 3's would be 3+3+3+3+3 = 15
