What is square root of 126 + square root of 56 in standard form

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

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