Talha had some mangoes. He gave 3/5 of the mangoes to his friend and
had left 16 mangoes. How many
mangoes would he have at first?

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

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

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.