Find exact values for sin θ and cos θ if tan θ = -1/3 and θ terminates in quadrant iv.

Tan = sin/cos
in quadrant IV, cos is positive so the exact value of sin is -1 and the exact value of cos is 3

Documentation and time management

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.