What is the factored form of a2 – 121?

answer choices available:
a. (a - 121)(a-1)
b. (a - 11)(a + 11)
c. (a + 11)(a + 11)
d. (a - 121)(a + 1)

as always, for your .

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?