Find the value of x. Round your answer to the nearest tenth.

Find the value of the variable and the length of each secant segment.

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

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.