Answer: -54
Step-by-step explanation:
The question is the first term of a geometric sequence is −2 and the common ratio is 3. The formula for finding the nth term of a geometric sequence is: ar^n-1
where,
a = first term = -2
r = common ratio = 3
n = number of terms = 4
The solution has been attached. The answer is -54
Answer:6km
Step-by-step explanation:
Given
when Alice finishes the race Becky is 8km From finishing line
and caitlin 12 km from finishing line.
Suppose t is the time require by Alice to finish the race
and be the velocity of alice ,becky and caitlin
thus
thus
say t' is time required by beckey to complete 8 km thus
therefore for Caitlin
Thus caitlin will cover a distance of 6 km in t' time and 6 km away from finishing.