3
answer the questions below for sequences a, b, c and d.
a: 2x + 4; – 2x – 3; 3x - 1
b: 4 - 2x; x – 1; 3x – 2
c: 2x - 8; - x - 1; 3x – 4,5
d: 10x; 3x – 2; 6x + 1
3.1 determine the value of x for which these terms form an arithmetic
sequence.
3.2 determine a formula for the nth term of the sequence.
3.3 determine the value of the 19th term.

The equatorial radius of earth is approximately 6 × 10^3 km, while the equatorial radius of saturn is approximately 6 × 10^4 km. which of the following is true? a. the equatorial radius of saturn is approximately one hundred times that of earth. b. the equatorial radius of saturn is approximately ten times that of earth. c. the equatorial radius of earth is approximately one hundred times that of saturn. d. the equatorial radius of earth is approximately ten times that of saturn.