The shaft is made of l2 tool steel, has a diameter of 40 mm, and is fixed at its ends a and b. It is subjected to the couple shown where f=3. 2 kn.

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

If value of cos330° is √3/2 then find tan165°.