You need to find the number of permutations of the 5 beaches, taken 3 at a time:
500 / 2 = 250 miles per hour ( rate of speed)
250 * 8 = 2,000 miles in 8 hours
Answer: B
4c^2 - 16c - 1
Step-by-step explanation:
(3c2 - 8c + 5) + (c2 - 8c - 6).
remove parantheses.
3c2 - 8c + 5 + c2 - 8c - 6
add common factors
answer= 4c^2 - 16c - 1