Answer:
a² + b² = c²
13² + 13² = c²
169 + 169 = c²
338 = c²
c = √338 or 18.385 or 13√2
18.4
Step-by-step explanation:
13² + 13² = x²
169 + 169 = x²
338 = x²
x = 18.38477....
yes, 6÷1/3, which is 6×3 or 18
[f(3) - f(0)]/(3-0)
[f(3) - f(0)]/3