√11² = ?

i do not understand what that means!

i know that √11 means "square root of 11"

i don't know this √11²!

me as soon as possible!

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.