50-18=32
Это все решается по теореме Пифагора:с2=а2+b2
с2=32^2+24^2
c2=1024+576=1600
c2=1600
c=40
Ответ:40м
![\displaystyle 6!- \frac{4!}{3!}=2*3*4*5*6-4=720-4=716](https://tex.z-dn.net/?f=%5Cdisplaystyle+6%21-+%5Cfrac%7B4%21%7D%7B3%21%7D%3D2%2A3%2A4%2A5%2A6-4%3D720-4%3D716++)
Если 6! - 4! расположены в числителе:
![\displaystyle \frac{6!-4!}{3!}= \frac{6!}{3!}- \frac{4!}{3!}=4*5*6-4=120-4=116](https://tex.z-dn.net/?f=%5Cdisplaystyle++%5Cfrac%7B6%21-4%21%7D%7B3%21%7D%3D+%5Cfrac%7B6%21%7D%7B3%21%7D-+%5Cfrac%7B4%21%7D%7B3%21%7D%3D4%2A5%2A6-4%3D120-4%3D116++)
1) 2 1/2 + 1 3/4 = 2 2/4 + 1 3/4 = 3 5/4 = 4 1/4
2) 6 2/3 + 4 4/5 = 6 10/15 + 4 12/15 = 10 22/15 = 11 7/15
3) 4 * 4 1/4 = 4 * 17/4 = 17
4) 11 7/15 : 2 = 172/15 * 1/2 = 86/15 = 5 11/15
5) 17 - 5 11/15 = 16 15/15 - 5 11/15 = 11 4/15