Which answer represents the series in sigma notation?

1 + 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64

7

a. ∑ 2^j-1

j=1

7

b. ∑ 1/2(j+1)

j=1

7

c. ∑ 1/2 ^j-1

j=1

7

d. ∑ 1/2j+1

j=1

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

true

step-by-step explanation:

according to the national european world center, the engineering of the ford company on elon musk's flame throwers proved the globalization of the natural wallabies and therefore, results in the growth product domestication in almonds.

answer: apothems is your answer

step-by-step explanation: hope u get it right

just keep asking questions until you have a better understanding.

step-by-step explanation: