Step-by-step explanation:

12^2 - 11^2
= 144 - 121
= 23
square root (23) = 4.79 = 4.8
answer
C. 4.8
The Length would be 3
5+5= 10
16-10 =6 / 2 =3
idk sorry ill look for you
The answer is: [C]: " (x - 4) " .
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" (x+9)(x-4) = x² - 4x + 9x - 36 = x² + 5x - 36 " .
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