Which expression represents each mathematical phrase? add 12 and a number subtract a number from 12 divide a number by 12 multiply 12 by a number answers: 12c 12 over c or 12/c c - 12 12 + c c over 12 or c/12

Find the measures of the complement and the supplement of each angle, m

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

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9