Express 1.5×(10)^-4 in standard form

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0