What is the height of the cylinder given v=904.78 cm^3 and r =6 cm ^2

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0