find the length of DE if D is between points C and E, CD = 6.5 centimeters, and CE = 13.8 centimeters.

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

here's a poem i finished a while ago. i hope you like it and that it inspires you.