Please help with math!?

1. What is the 25th term of the geometric sequence that starts with .01 and has a ratio of 2?

167,772.16

50.10

335,544.32

48.01
1 points


2. What is the rule for the following sequence: 8, 4, 2, 1…?

an = a1 – 4(n – 1), a1 = 8

an = a1 * (1/2)(n-1), a1 = 8

an = a1 + 4(n – 1), a1 = 8

an = a1 * 2(n-1), a1 = 8
1 points



3. What is the ‘d’ value for the following sequence: 10, 6, 2, -2, -6…?

4

10

-10

-4
1 points


4. If you have a geometric sequence and the ‘r’ value is negative, what is the effect?

the numbers in the sequence get bigger

the numbers in the sequence get smaller

the numbers alternate from positive to negative

the numbers don’t change
1 points


5. You start with $.50 at the beginning of the year. This amount doubles every month. How much will you have at the end of the 12th month? Careful: You have been asked to find the amount at the END of the month!! Begin by writing the rule for the sequence.