Find all values of t such that 8t^2 smaller or equal to 3-10t. Write your answer in interval notation.
8t^2 <= -10t+3
8t^2 + 10 t -3 <= 0 This is a bowl shaped parabola......the area in question will be between and include the zeroes
quadratic formula shows the zeroes (roots) t = 1/4 and - 1.5
-1.5 <= t <= .25