What is the formula for the following geometric sequence? -5, -10, -20, -40, an = -5 · 2n - 1 an = -5 · (-2)n - 1 an = -2 · (-5)n - 1 an = 2 · (-5)n - 1

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Given the numbers c = –3 and d = 4, which statement is true? a. |–c| = 3 and |–d| = –4 b. |–c| = 3 and –|d| = –4 c. –|c| = –4 and –|d| = 3 d. |–c| = 3 and –|d| = 4

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?