You visit the grand canyon and drop a rock off the edge of a cliff. The rock will fall is 16 feet the first second, 48 feet the next second, 80 feet the third second, and so on in an arithmetic sequence. What is the total distance the object will fall in 6 seconds?
A.)210
B.)756
C.)576
D.)336
A.)210
B.)756
C.)576
D.)336
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Answer:
C.576
Step-by-step explanation:
Arithmetic sequence.
an=a1+(n-1)d
an=16+(6-1)32=176
The 6th term is 176. Now we are ready to find the sum:
=576 feet