For items 20-21, use the following statement:
I. A sequence where each term after the first is obtained by adding the same constant.
II. A sequence where each term after the first is obtained by multiplying the preceding term by the same constant.
III. A sequence where its first two terms are either both 1, or 0 and 1; and each term, thereafter, is obtained by adding the two preceding terms.
20. Which of the following statement best describe an arithmetic sequence?
A. I only
B. II only
C. III only
D. none of the above
21. Which of the following statement that best describe the sequence 5, -10, 20, -40, 80 ?
A. I only
B. II only
C. III only
D. none of the above
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Step-by-step explanation:
pede mo ba yn hulaan?? de jk lng sagot ko jn sa 20. is c tas sa 21.A tama po yn promise kayo na bhala kung ayw nyo maniwala