Just walk down this road and you'll see the museum ________ your right.
用圆心角为120°,半径6cm的扇形纸片卷成一个圆锥形无底纸帽(如图所示),则这个纸帽的高是( )
若函数f(x)=-x+6,≤23+logax,x>2(a>0且a≠1)的值域是4,+∞),则实数a的取值范围是____