Number of people who have heard it
by the end of the day:
January 1 . . . . . 2
January 2 . . . . . 4
January 3 . . . . . 8
January 4 . . . . . 16
January 5 . . . . . 32
January 6 . . . . . 64
January 7 . . . . . 128
January 8 . . . . . 256
.
.
.
February 1 . . . . . 4,294,967,296
February 2 . . . . . 8,589,934,592 <=== more than the Earth's
human population.
Given:
and
.
To find:
The combinations without repetition are possible if
and
.
Solution:
Combination of selecting r item from total n items is:

We have
and
. By using the above formula, we get



Therefore, the correct option is D.
Answer:
6(√2 - 5√3).
Step-by-step explanation:
3√2 ( 2 - 5 √6)
= 6√2 - 15√12
= 6√2 - 15√4√3
= 6√2 - 30√3
= 6(√2 - 5√3)
Answer:
If 1 pint is equal to 2 cups, then 5 pints would equal _<u>5</u>_ cups.
Step-by-step explanation:
Let's use a ratio to solve:
pints : cups
1 : 2
2 : 4
3 : 6
4 : 8
5 : 10
There would be 10 cups in 5 pints.