Answer:
The sum or product of a non-zero rational number and an irrational number is always 1
Answer:
It is positive
Step-by-step explanation:
(3)(-3)(-2)(4)
Considering - × - = +
and + × + = +
Considering the signs in front of the numbers
(+)(-)(-)(+)
Multiplying the two middle negatives will give positive and positive multiply by positive is equal positive
Permutation: If you are having a race with 10 people, there are 720 different ways that runners can finish the race. Since the order matters, this is a permutation.
10 x 9 x 8 =720
Combination: If you are selecting 3 members to join a club from a class of 10 students, there are 120 different clubs that can be formed. Since the order they are chosen doesn't matter, this is a combination.
(10 x 9 x 8) / 6 = 120
Answer:
Brook is faster.
Step-by-step explanation:
1 hour=60 minutes
2 hours=2*60=120 minutes
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7 miles in 30 minutes vs 25 miles in 120 minutes
7/30=0.233...mile per minute
25/120=0.20833...mile per minute
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