Answer:
None
Step-by-step explanation:
None. √-21 is not a real number.
262.5 miles
explanation 1/4 is half of 1/2 so 52.5 is half of 105 and then 210 for an hour of travel
Answer:
5sqrt(2)
Step-by-step explanation:
you can split 50 into sqrt(25×2)
and the sqrt(25) is 5, so than your left with just the 2 in the sqrt.