Which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243

A) 3x

B) 3x + 3

C) x + 3

D) 3^x

Question

Mathematics

Costa

22 June, 23:43

Which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243

A) 3x

B) 3x + 3

C) x + 3

D) 3^x

+1

Answers (1)

Know the Answer?

Laney Smith · Answer 1

You are multiplying by 3 each time. This sequence is geometric.

9 = 3*3 = 3^2

27 = 3*9 = 3*3*3 = 3^3

81 = 3*27 = 3*3*3*3 = 3^4

and so on.

The general rule is 3^x which is choice D

Which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243A) 3xB) 3x + 3C) x + 3D) 3^x

Which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243

A) 3x

B) 3x + 3

C) x + 3

D) 3^x