Answer:
11) 195312
13) 5461
Step-by-step explanation:
11)
15÷(-3) = -5
(-75)÷15 = -5
375÷(-75) = -5
It’s clear that the common ratio of this geometric sequence is -5
Then using the sum formula for geometric sequences :
……………………………………………………
13)
Answer:
A.) -5 1/6
Step-by-step explanation:
I have to assume that this is a mixed fraction meaning:
-
First I will convert this mixed fractions into improper fractions to make the math easier:
How many times does 6 go into 31? 6x5=30 which leaves remainder 1 and so our answer will be