I mark brainliest! which pair of real complex numbers has a real- number root
(1+3i)(6i)
(1+3i)(2-3i)
(1+3i)(1-3i)
(1+3i)(3i)

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Find the area of the triangle shown 3 by 6

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?