I use box method to solve this...:
100x^2+34x+49
I hope you wanted the formula! :)
Marvin can fun 52 KM in 6 Hours and 30 Min
First you divide 48 km /6 hours to find out how many km he ran per hour
48 km /6 hours = 8km/h
So you then multiply 8 km/h x 6.5 hours to find out how many km he ran in 6 hours and 30 mins.
4800/15.80(per/h) = 303.8 hours / 20 hours per week = 15.19 weeks.
Answer: The answer to this is A,C, E! Hope this helps!
Recall the permutation formula: nPr = n!/(n-r)!
In this question, n=9 and r= 4
Let's plug in those values into the formula
9!/(9-4)! = 9!/5! = 3024
The final answer is 3024!
