Can someone help me?

X = 9.2

Step-by-step explanation:

You have to use the pythagorean theorm, which is a squared + b squared  = c squared. Looking at the triangle, the vertical line is 6, and the horizontal is 7.

6squared + 7squared = c squared

85 = csquared

Take the square root of both sides to get rid of the squared on the c.

sqroot of 85 = 9.2

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⭐