This is the 16741st most frequent Russian word.
слабой
Weak.
Here 'слабой' describes the strength or intensity of tea, indicating it's less strong or potent.
Этот чай слишком слабой для меня.
This tea is too weak for me.
In this sentence, 'слабой' is used to describe a person's physical or another type of weakness, implying fragility or need for assistance.
Он помог слабой женщине перейти дорогу.
He helped a weak woman cross the road.
Here 'слабой' refers to someone's lack of proficiency or skill in a certain subject, in this case, mathematics.