# PreCalc

posted by
**Anonymous**
.

1) Determine the value of r (put this number in the first blank) and then determine the value of the 10th term of the geometric sequence. Do not use any decimals or mixed numbers in your answers. Reduce all fractions to lowest terms.

a1 = 2 and a4 = −1/4

2)Find d and then find the 20th term of each sequence. Type the value of d (just the number) in the first blank and then type the 20th term(just the number) in the second blank.

a1 = 10 and a3 = 28

3)Find d and then find the 20th term of each sequence. Type the value of d (just the number) in the first blank and then type the 20th term(just the number) in the second blank.

a5 = -13 and a12 = -27