Write the equation of a parabola with a
focus of (-1,-2) and a directrix y = -4. Please help

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⭐

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right