Answer :
Answer:
Step-by-step explanation:
[tex]\frac{6!}{r!} =30\\6!=30 *r!\\6*5*4*3*2*1=30*r!\\r!=4!\\r=4\\[/tex]
3r+5=3(4)+5=17
2+r=2+4=6
17 P6=17*16*15*14*13*12=494,010, 316,800
Answer:
Step-by-step explanation:
[tex]\frac{6!}{r!} =30\\6!=30 *r!\\6*5*4*3*2*1=30*r!\\r!=4!\\r=4\\[/tex]
3r+5=3(4)+5=17
2+r=2+4=6
17 P6=17*16*15*14*13*12=494,010, 316,800