What is the value of the expression 8p4: 32, 1680,40,296,40,320

1680

Step-by-step explanation:

nPr = n!/(n-r)!

Therefore;

8P4 = 8!/(8-4)!

we get;

    = 8!/4!

    = (8×7×6×5×4×3×2×1)/(4×3×2×1)

    = 40,320/ 24

    = 1680

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2