Answer:
#1 is correct
Step-by-step explanation:
24 laps divided by 6 minutes equals 4 laps per minute.
72 laps divided by 18 minutes equals 4 laps per minute.
15 breaths divided by 36 seconds does not equal the same rate as 90 breaths divided by 3 minutes.
Answer:
-4 and 9
Step-by-step explanation:
x2-36=5x'
x*x - 5x - 36 = 0
(x - 9) (x + 4) = 0
roots 9 and -4
Answer:
Step-by-step explanation:
#1 Number of ways picking 2 from 6 = 6C2 = 15
#2 Arranging them in a circle (consider 1 pair AB)
can be done
1,5 (ABBBBB) or (5,1)
2,4 ( AABBBB) or (4,2)
3,3
1,1 (ABABAB)
all up = 7 ways
#3 = product of #1 and #2 = 15x7 = 105
Answer: 12.25 and 20.25
Step-by-step explanation:
20.25 - 12.25 = 8
Square root of 20.25 is 4.5
Square root of 12.25 is 3.5
4.5 - 3.5 = 1
Hope this helped
