Which expressions simplify to a rational answer? select each correct answer. 3‾√·2‾√ 11‾‾‾√·5‾√ 52·‾‾√2‾√ 9‾√·16‾‾‾√

Sqrt(3) * sqrt(2) = sqrt(6) is irrational
sqrt(11) * sqrt(5) = sqrt(55) is irrational
5sqrt(2) * sqrt(2) = 5sqrt(4) = 5 * 2 = 10 is rational
sqrt(144) = 12 is rational

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.