Question

In the sequence 1, 2, 4, 8, 16, 32… each term after the first is twice the previous term. What is the sum of the 16th, 17th, and 18th terms in the sequence?
A. 218
B. 3(217)
C. 7(216)
D. 3(216)
E. 7(215)

Answer 1

could u tell me pls right answer ?

Answer 2

\(2^{15}+2^{16}+2^{17}\) is the number you want

Answer 3

doesn't look like any of those to me

Answer 4

ooh i see maybe there should be exponents in those answers

Answer 5

\[2^{15}+2^{16}+2^{17}=2^{15}(1+2+4)=7\times 2^{15}\]