Can a trapezoid have four obtuse angles? Explain.

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

True or false look at the picture pls : /

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.