Maximum knee flexion occurs during which phase of gait?

Gait is an efficient motor task. Which of the following is NOT a reason for this efficiency?

Which of the following is TRUE regarding the properties of bone?

Decide whether the relation is a function.

Decide whether the relation is a function, and give the domain and range.  

Factor the trinomial completely. 9×2+12x+4{“version”:”1.1″,”math”:”9×2+12x+4″}

Factor the trinomial completely. 5×3+5×2-30x{“version”:”1.1″,”math”:”5×3+5×2-30x”}

Factor the trinomial completely. x2-x-6{“version”:”1.1″,”math”:”x2-x-6″}

Decide whether the ordered pair is a solution of the given system. 4x+y=-113x+4y=-18; -2, -3{“version”:”1.1″,”math”:”4x+y=-113x+4y=-18; -2, -3″}

Factor by grouping. s2+7s+5s+35{“version”:”1.1″,”math”:”s2+7s+5s+35″}