The polynomial of degree 5,P(x)has leading coefficient 1, has roots of multiplicity 2 atx=2andx=0, and a root of multiplicity 1 atx=−4

In the 30-60-90 triangle below side s has a length of and side r has a length

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).