It's possible to build a triangle with a side lengths of 5, 5, and 10

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is