Find the side length s of the square. a square with its sides labeled as s. the area of the square is 36/49 yards squared.

s = 6/7 yd

Step-by-step explanation:

The formula for the area of a square is A = s^2, where s is the length of one side.  Therefore, if we already know the area, we can calculate the side length.

Here, A = s^2 becomes s = √A, or s = √36 yds^2 / √49, or s = 6/7 yd.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8