1/5^2 = 7.56/45
google dat sis
step-by-step explanation:
relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.
x² + 11x + 18 < 0
[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2
solution: (-9, -2)