Help!! Easy and urgent

To solve this problem, we must use the pythagorean theorem. 12 is the hypotenuse or c and 5 is b.

a^2 + (5)^2 = (12)^2. Square the appropriate numbers.

a^2 + 25 = 144. Subtract 25 from each side.

a^2 = 119. Take the square root of each side.

a = √(119). This is only half the value of x. Multiply √(119) by 2

Your answer should be 21.8

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option