PLEASE HURRY!! 4. Con these side lengths form a triangle? Explain why or why not. 21 cm, 14 cm, 40 cm

Which value is not a solution of 8x^3 – 1 = 0

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4