If A is an obtuse angle and cos A = 3/5, find the values of tan A

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

State if the two triangles are congruent. if they are, state how you know?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?