Therefore, the answer is b < 7.
Minus
The quadratic equation is
( -b+-SQRT(b^2 - 4ac) )/2a
Answer: it will take her 56.67 seconds or 0.945 minutes to race 2 laps
Step-by-step explanation:
It takes Ella 1 minute and 25 seconds to complete the cheep beach course.
We can express this time in seconds or minutes. Expressing it in seconds,
1 minute = 60 seconds
Therefore,
1 minute and 25 seconds = 60 +25 = 85 seconds
If the course is 3 laps long, that means she completed 3 laps in 85 seconds. The time it will take her to race 2 laps would be
(2 × 85)/3
= 56.67 seconds
Converting to minutes, it will be
56.7/60 = 0.945 minutes
Factoring Example: find the GCF of 20,50,120
Just find the factors of each number
The factors of 20 are 1,2,4,5,10,20
The factors of 50 are 1,2,5,10,25,50
The factors of 120 are 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
the common factors of 20,50,120 are 1,2,5,10 just the numbers common to all three.
the greatest common factor of 20,50,120 is 10
For the values of 36,144
is GCF = 36
