How many unique triangles can be made were one angle measures 98° in another angle is an obtuse angle

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas