<span>2 + 5 - 67 + 15 - 7 + 43 + 2
= 7 - 67 + 15 - 7 + 43 + 2
= -60 + 15 - 7 + 43 + 2
= - 45 - 7 + 43 + 2
= -52 + 43 + 2
= -9 + 2
= -7 (answer)
</span>
"Combinations" isn't really the right word, because a combination doesn't take order of elements into account, and the outcome of a race certainly does depend on order. "Permutations" would be the correct term.
If 4 students are competing, then the race has
4! = 4 • 3 • 2 • 1 = 24
possible outcomes.
Answer:
where's the equation? your question is missing some parts.
Step-by-step explanation:
Julie's average speed which is the ratio of her distance covered to the time Taken to cover that distance ls <em>42.14 </em><em>miles</em><em> per hour</em>
Given the Parameters :
- Total miles traveled = 295 miles
- Total time taken = 7 hours
Recall :
- <em>Average speed = Distance covered / time taken </em>
Julie's Average speed = 295 / 7 = 42.14 mph
Therefore, Julie's average speed is 42.14 miles per hour.
Learn more :brainly.com/question/23774048
Answer:
8
Step-by-step explanation:
f(x) = 3x + x
Combine like terms
f(x) = 4x
Let x = 2
f(2) = 4(2)
f(2) = 8