Acertain radioactive material decay in such a way there’s a mass in kilograms remains after t years is given by the that the mass in kilograms remains after t years is given by the function m(t)=120e^-0.018t

how much mass remains after 50 years? round to 2 decimal places.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

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

Find the domain of the following expression: 1/(√x)-2