Answer:
Step-by-step explanation:
Since there is no single number we can add to one number in the sequence to get to the next one, this is not arithmetic. That means it's geometric, if it's a sequence at all. To get from 2 to 6 we multiply by 3. To get from 6 to 18 we multiply by 3. To get from 18 to 54 we multiply by 3. Therefore, this is in fact geometric and the common ratio is 3. The standard form of a geometric explicit formula is
where n is the position of a number in the sequence, a1 is the first number in the sequence, and r is the common ratio. We have then
a1 = 2 and r = 3. Therefore, the explicit formula is
and you can use this to find the value of any number in the sequence. Very handy; much more so than the recursive formula, which requires that all the numbers in a sequence be found in order in order to get to a desired value.
Answer:
The correct option is;
C. The only swimmers in the 100-m butterfly race are from the rival swim team
Step-by-step explanation:
The question is a word problem
The given information in the question are;
The names (first and last names) of all the competitors are different
The set, (which are the names) of the swimmers taking part in the 100-m butterfly race = The set (which contains the names) of swimmers from the rival team
Therefore, the only members of the set (the only names in the set) of swimmers taking part in the 100-m butterfly race are (the names of the swimmers from the rival swim team) from the rival swim team.
Answer:
90%
Step-by-step explanation:
The percentage that she spent is the money spent over the total
45/50 *2/2
90/100
Percent means out of 100
90%
Answer: 3
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Explanation:
Using a calculator, you should find that
233/999 = 0.233233233233...
the "233" repeats forever. We see that there are 3 digits here, which is the answer.
Answer:
12
Step-by-step explanation:
10 8 subtract 2
8 12 add 4
12-10 subtract 2
10 14 add 4
Now we subtract 2
14-2 = 12
